CN203546439U - Door lock of washing machine - Google Patents
Door lock of washing machine Download PDFInfo
- Publication number
- CN203546439U CN203546439U CN201320747831.6U CN201320747831U CN203546439U CN 203546439 U CN203546439 U CN 203546439U CN 201320747831 U CN201320747831 U CN 201320747831U CN 203546439 U CN203546439 U CN 203546439U
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- Prior art keywords
- lock
- washing machine
- locking piece
- pushing block
- door lock
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Abstract
The utility model discloses a door lock of a washing machine. The door lock of the washing machine comprises a lock case, a drive device, a locking part and a transmission device, wherein the lock case is provided with a bottom plate and a cover plate, the drive device is installed in the lock case, the locking part is installed in the lock case and can lock or retract to the lock case, and the transmission device is arranged between the drive device and the locking part and converts rotation power of the drive device into force for driving the locking part to move in the direction that the locking part locks or retracts to the lock case. The transmission device is driven by the rotation power of the drive device to conduct linear back-and-forth movement to drive the locking part to lock or retract to the lock case. According to the door lock, the transmission device can directly convert rotation movement of the drive device into the linear back-and-forth movement of the transmission device and then drive the locking part to lock or retract to the lock case. The door lock is simple in structure, easy to assemble and high in transmission accuracy, arranged components are few, and the door lock can be locked or retract in time.
Description
Technical field
The utility model relates to a kind of locking device of cover of washing machine, relates in particular to a kind of door lock of washing machine.
Background technology
Door lock of washing machine is for washing machine, particularly tumbling-box washing machine has vital effect, if in use, washing machine cover can arbitrarily be opened, not only the washings in washing machine and clothes easily splash and throw away, and child easily opens washing machine cover, contact inside subject device, easily meets accident.
In order to address the above problem, Chinese patent literature CN103361933A discloses a kind of use in washing machine door lock assembly, comprises drive division, it is loaded into casing, makes lock pin forward-reverse, motor, it provides power to above-mentioned drive division, and printed circuit board (PCB), and it is connected with said motor; Said motor and printed circuit board (PCB) are disposed at the inside of said machine casing with above-below direction, the intermediate configurations of said motor and printed circuit board (PCB) has intermediate plate, make said motor and printed circuit board (PCB) be separately fixed at the top and bottom of above-mentioned intermediate plate.Wherein drive division comprises: worm screw, it is combined with the rotating shaft of said motor, frictional drive assembly, itself and above-mentioned worm engaging, and cam mechanism, itself and above-mentioned frictional drive assembly link, and will be converted to rectilinear motion from the rotary power of above-mentioned frictional drive component passes, make above-mentioned lock pin forward-reverse; Above-mentioned cam mechanism is disposed at a side of above-mentioned intermediate plate; Wherein, above-mentioned frictional drive assembly comprises: worm gear, itself and above-mentioned worm screw are linked, slip gear, and itself and above-mentioned worm gear have same rotating shaft, and be disposed at the upper side of above-mentioned worm gear, spring, it is arranged at the upper side of described worm gear, and Spring Card stop, it is formed at bottom surface one side of above-mentioned slip gear, and is connected with above-mentioned spring; Above-mentioned spring comprises expanding is close to two curved tabs of the split ring of above-mentioned worm gear and the inward at both ends lateral bend of above-mentioned split ring; Above-mentioned Spring Card stop is disposed between described curved tabs and curved tabs.
But the use in washing machine door lock assembly described in above-mentioned patent documentation, have the following disadvantages: in this device, be that worm screw by being connected with motor drives the worm gear in frictional drive assembly to rotate, rotate driving by worm gear with the slip gear of its coaxial setting, the rotary power by cam mechanism, frictional drive assembly being transmitted is again converted to rectilinear motion, thereby make lock pin forward-reverse, realize the locking release of door lock of washing machine; In this door lock of washing machine, a plurality of parts such as worm screw, worm gear, slip gear and cam mechanism need to be set and transmit and change rotary power, its complex structure, assemble loaded down with trivial details, and parts are too much, easily there is driving error, thereby make described door lock not lock out in time or to retract.
Utility model content
For this reason, technical problem to be solved in the utility model is use in washing machine door lock assembly of the prior art, and complex structure is assembled loaded down with trivial detailsly, and has driving error, and then provides a kind of simple in structure, is easy to assembling and the high door lock of washing machine of transmission accuracy.
For solving the problems of the technologies described above, a kind of door lock of washing machine of the present utility model, it comprises
The lock housing with base plate and cover plate;
Be arranged on the drive unit in described lock housing;
Be arranged in described lock housing the locking piece of the described lock housing that can lock out or retract;
Be arranged between described drive unit and described locking piece, the rotary power of described drive unit is converted into and drives described locking piece to lock out or the transmission device of the power of retracted orientation;
Described transmission device, under the driving of the rotary power of described drive unit, is made straight line back and forth movement, drives described locking piece lock out or retract.
The straight line back and forth movement direction of described transmission device and described locking piece lock out or when retraction movement direction is in a certain angle, also comprise and being arranged between described transmission device and described locking piece, the straight line back and forth movement of described transmission device is converted to and drives described locking piece to lock out or the conversion portion of retracted orientation back and forth movement.
Described transmission device comprises the helical member being connected with described drive unit, slidably be arranged on the pushing block in lock housing, on described pushing block, form the slotted eye mating with described helical member, in described slotted eye, form and be applicable to snapping in the ratchet clamping part in described helical member, described helical member rotates, described ratchet clamping part drives described pushing block translation, also comprises the limiting structure that the described pushing block of restriction rotates with described helical member;
Described conversion portion comprises oblique strip shaped hole or the projection being arranged on described pushing block, and being arranged on projection or the oblique strip shaped hole that cooperation on described locking piece is inserted, the cooperation by described oblique strip shaped hole and described projection is converted to the straight line back and forth movement of described pushing block the motion that drives described securing rod to lock out or retract.
Described slotted eye is made as the applicable screwed hole matching with described helical member, and described ratchet clamping part is the oblique sheet of semicircle with the applicable angle of inclination engaging with described helical member that is molded over described screwed hole inside.
Described drive unit is motor, described motor is connected with wiring board by two joint pins, between described motor and described wiring board, be also provided with the motor baffle plate that prevents that described wiring board from being worn and torn by described motor, on described wiring board, be connected with binding post, plug terminal is connected with described binding post through the jack on described base plate bottom surface.
The limit switch that also comprises the power supply of the described motor of control being arranged in described lock housing, described locking piece lock out completely or retracts, and described pushing block triggers described limit switch, and the power supply of described motor disconnects.
On described pushing block, form for triggering the trigger unit of described limit switch, described limit switch is provided with the first contact and the second contact, described trigger unit under the drive of described pushing part, reciprocating motion between described the first contact and described the second contact.
While being also included in lock-out state, can carry out to described locking piece the manual unlocking device of release by force.
Described manual unlocking device comprises that one end is fixedly connected with described pushing block, the other end stretches out the stay cord outside described lock housing through the through hole on described base plate, and described stay cord tension, described pushing block moves towards unlocking direction, drives described locking piece to retract in described lock housing.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) in a kind of door lock of washing machine described in the utility model, described transmission device, under the driving of the rotary power of described drive unit, is made straight line back and forth movement, drives described locking piece lock out or retract; In the utility model, described transmission device can directly be converted into rotatablely moving of described drive unit the straight line back and forth movement of self, and then drive described locking piece lock out or retract, it is simple in structure, be easy to assembling, and it is few that parts are set, transmission accuracy is high, can realize and lock out timely or retract.
(2) in a kind of door lock of washing machine described in the utility model, the straight line back and forth movement direction of described transmission device and described locking piece lock out or when retraction movement direction is in a certain angle, also comprise and being arranged between described transmission device and described locking piece, the straight line back and forth movement of described transmission device is converted to and drives described locking piece to lock out or the conversion portion of retracted orientation back and forth movement; In the utility model, can, according to the layout needs in the described lock housing of reality, by described conversion portion, described locking piece be arranged arbitrarily, thereby can make full use of the space in described lock housing, reduce the volume of described lock housing, be also beneficial to the setting of miscellaneous part simultaneously.
(3) in a kind of door lock of washing machine described in the utility model, described transmission device comprises the helical member being connected with described drive unit, slidably be arranged on the pushing block in lock housing, on described pushing block, form the slotted eye mating with described helical member, in described slotted eye, form and be applicable to snapping in the ratchet clamping part in described helical member, described helical member rotates, and described ratchet clamping part drives described pushing block translation, also comprises the limiting structure that the described pushing block of restriction rotates with described helical member; Described conversion portion comprises oblique strip shaped hole or the projection being arranged on described pushing block, and being arranged on projection or the oblique strip shaped hole that cooperation on described locking piece is inserted, the cooperation by described oblique strip shaped hole and described projection is converted to the straight line back and forth movement of described pushing block the motion that drives described securing rod to lock out or retract; In the utility model, described helical member is connected with described ratchet clamping part by described slotted eye with described pushing block, when described helical member forward rotation, under the effect of the described ratchet clamping part of described pushing block in being fastened on described helical member and described limiting structure towards a direction generation rectilinear motion, when the rotation direction reversed of described helical member, there is straight line reseting movement in described pushing block, and then by described conversion portion, realize locking out of described locking piece and retract or retract and lock out under the drive of described ratchet clamping part.
(4) in a kind of door lock of washing machine described in the utility model, described slotted eye is made as the applicable screwed hole matching with described helical member, and described ratchet clamping part is the oblique sheet of semicircle with the applicable angle of inclination engaging with described helical member that is molded over described screwed hole inside; Described slotted eye is provided with corresponding screwed hole, described ratchet clamping part also has and is suitable for the angle of inclination that engages with described helical member, make like this rotatablely moving of described helical member can convert smoothly, timely described pushing block rectilinear motion to, make in time this door lock of washing machine lock out or retract, guarantee the precision that lock out of this door lock of washing machine.
(5) in a kind of door lock of washing machine described in the utility model, the limit switch that also comprises the power supply of the described motor of control being arranged in described lock housing, described locking piece lock out completely or retracts, described pushing block triggers described limit switch, the power supply of described motor disconnects, when described locking piece lock out completely or retracts, the power supply of described motor can disconnect automatically like this.
(6) in a kind of door lock of washing machine described in the utility model, while being also included in lock-out state, can carry out to described locking piece the manual unlocking device of release by force, like this when this door lock of washing machine is smoothly during automatic unlocking, can come the release by force of described locking piece by described manual unlocking device, thereby avoid this door lock of washing machine by locked.
(7) in a kind of door lock of washing machine described in the utility model, described manual unlocking device comprises that one end is fixedly connected with described pushing block, the other end stretches out the stay cord outside described lock housing through the through hole on described base plate, and described stay cord tension, described pushing block moves towards unlocking direction, drives described locking piece to retract in described lock housing; The described manual unlocking device of this kind of structure, simple in structure and easy to operate.
Accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is that door lock of washing machine described in the utility model splits schematic diagram;
Fig. 2 is door lock of washing machine schematic diagram described in the utility model
Fig. 3 is helical member described in the utility model and impeller connection diagram;
Fig. 4 is impeller described in the utility model and locking piece connection diagram;
Fig. 5 is that door lock described in the utility model goes out schematic diagram
Fig. 6 is door lock retraction schematic diagram described in the utility model;
In figure, Reference numeral is expressed as: 11-base plate; 12-cover plate; 20-locking piece; 31-helical member; 32-pushing block; 33-slotted eye; 34-ratchet clamping part; 35-trigger unit; 41-oblique strip shaped hole; 42-projection; 51-motor; 52-joint pin; 53-wiring board; 54-motor baffle plate; 55-binding post; 56-plug terminal; 60-limit switch; 61-the first contact; 62-the second contact; 70-stay cord.
The specific embodiment
Below with reference to accompanying drawing, use following embodiment to be further elaborated the utility model.
As Figure 1-4, a kind of door lock of washing machine described in the present embodiment, it comprises the lock housing with base plate 11 and cover plate 12; Be arranged on the drive unit in described lock housing; Be arranged in described lock housing the locking piece 20 of the described lock housing that can lock out or retract; Be arranged between described drive unit and described locking piece 20, the rotary power of described drive unit is converted into and drives described locking piece 20 to lock out or the transmission device of the power of retracted orientation; Described transmission device, under the driving of the rotary power of described drive unit, is made straight line back and forth movement, drives described locking piece 20 lock out or retract.In the present embodiment, described transmission device can directly be converted into rotatablely moving of described drive unit the straight line back and forth movement of self, and then drive described locking piece 20 lock out or retract, it is simple in structure, be easy to assembling, and it is few that parts are set, transmission accuracy is high, can realize and lock out timely or retract.
The straight line back and forth movement direction of described transmission device and described locking piece 20 lock out or when retraction movement direction is in a certain angle, also comprise and being arranged between described transmission device and described locking piece 20, the straight line back and forth movement of described transmission device is converted to and drives described locking piece 20 to lock out or the conversion portion of retracted orientation back and forth movement; In the present embodiment, can, according to the layout needs in the described lock housing of reality, by described conversion portion, described locking piece 20 be arranged arbitrarily, thereby can make full use of the space in described lock housing, reduce the volume of described lock housing, be also beneficial to the setting of miscellaneous part simultaneously.
On the basis of above-described embodiment, preferred described transmission device comprises the helical member 31 being connected with described drive unit, slidably be arranged on the pushing block 32 in lock housing, on described pushing block 32, form the slotted eye 33 mating with described helical member 31, in described slotted eye 33, form and be applicable to snapping in the ratchet clamping part 34 in described helical member 31, described helical member 31 rotates, described ratchet clamping part 34 drives described pushing block 32 translations, also comprises the limiting structure that the described pushing block 32 of restriction rotates with described helical member 31; Described conversion portion comprises oblique strip shaped hole 41 or the projection 42 being arranged on described pushing block 32, and being arranged on projection 42 or the oblique strip shaped hole 41 that cooperation on described locking piece 20 is inserted, the cooperation by described oblique strip shaped hole 41 and described projection 42 is converted to the straight line back and forth movement of described pushing block 32 motion that drives described securing rod to lock out or retract.In the present embodiment, described helical member 31 is connected with described ratchet clamping part 34 by described slotted eye 33 with described pushing block 32, when described helical member 31 forward rotation, under the effect of the described ratchet clamping part 34 of described pushing block 32 in being fastened on described helical member 31 and described limiting structure towards a direction generation rectilinear motion, when the rotation direction reversed of described helical member 31, there is straight line reseting movement in described pushing block 32, and then by described conversion portion, realize locking out of described locking piece 20 and retract or retract and lock out under the drive of described ratchet clamping part 34.
On the basis of above-described embodiment, slotted eye described in the present embodiment 33 is made as the applicable screwed hole matching with described helical member 31, described ratchet clamping part 34 is for being molded over the oblique sheet of semicircle with the applicable angle of inclination engaging with described helical member 31 of described screwed hole inside, make like this rotatablely moving of described helical member 31 can convert smoothly, timely described pushing block 32 rectilinear motions to, make in time this door lock of washing machine lock out or retract, guarantee the precision that lock out of this door lock of washing machine.
Described drive unit is motor 51, described motor 51 is connected with wiring board 53 by two joint pins 52, between described motor 51 and described wiring board 53, be also provided with and prevent that described wiring board 53 is by the motor baffle plate 54 of described motor 51 wearing and tearing, on described wiring board 53, be connected with binding post 55, plug terminal 56 is connected with described binding post 55 through the jack on described base plate 11 bottom surfaces.
Further, in the present embodiment, the limit switch 60 that also comprises the power supply of the described motor 51 of the control being arranged in described lock housing, described locking piece 20 lock out completely or retracts, described pushing block 32 triggers described limit switch 60, the power supply of described motor 51 disconnects, and when described locking piece 20 lock out completely or retracts, the power supply of described motor 51 can disconnect automatically like this.As preferred embodiment, on described pushing block 32, form for triggering the trigger unit 35 of described limit switch 60, described limit switch 60 is provided with the first contact 61 and the second contact 62, described trigger unit 35 under the drive of described pushing part, reciprocating motion between described the first contact 61 and described the second contact 62.
As shown in Figure 5, for fear of when door lock of washing machine is smoothly during automatic unlocking, this door lock of washing machine is by locked, while being also included in lock-out state in the present embodiment, and the manual unlocking device that can carry out release by force to described locking piece 20.As preferred embodiment, described manual unlocking device comprises that one end is fixedly connected with described pushing block 32, the other end stretches out the stay cord 70 outside described lock housing through the through hole on described base plate 11, and described stay cord 70 tensions, described pushing block 32 moves towards unlocking direction, drive in the described lock housing of described locking piece 20 retraction, can not automatic unlocking when door lock of washing machine, in the time of need to carrying out release by force to door lock of washing machine, as long as pull with hand described stay cord 70, described stay cord 70 will drive described pushing block 32 to move toward unlocking direction, and then drive in the described lock housing of described locking piece 20 retraction, thereby realize the release of door lock of washing machine, the described manual unlocking device of this kind of structure, simple in structure and easy to operate.
The concrete motion process of the door lock of washing machine described in above-described embodiment is as follows:
As Fig. 5, shown in 6, when this door lock of washing machine does not lock out, described locking piece 20 does not stretch out described lock housing, described pushing block 32 props up described base plate 11 tops, in the time need to locking the door lock of washing machine, connect the power supply of described motor 51, described motor 51 drives described helical member 31 to rotate, described pushing block 32 is under the effect of described ratchet clamping part 34 and described limiting structure, down sliding, and in down sliding process, described pushing block 32 drives the described locking piece 20 with the described projection 42 in insertion described oblique strip shaped hole 41 to lock out by described oblique strip shaped hole 41, when described locking piece 20 lock out completely, trigger unit 35 on described pushing block 32 triggers described limit switch 60, the power supply of described motor 51 is disconnected, door lock of washing machine is locked, then can connect washing machine power supply, washing machine is started working,
In the time need to untiing the door lock of described washing machine, connect the power supply of described motor 51, described helical member 31 rotates backward, described pushing block 32 is under the effect of described ratchet clamping part 34 and described limiting structure, upward sliding, and in upward sliding process, described pushing block 32 is driven and is had the described lock housing of described locking piece 20 retraction of inserting the described projection 42 in described oblique strip shaped hole 41 by described oblique strip shaped hole 41, when described locking piece 20 is retracted completely, trigger unit 35 on described pushing block 32 triggers described limit switch 60, the power supply of described motor 51 is disconnected, door lock of washing machine release.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being extended out thus or change are still among the protection domain in the invention.
Claims (9)
1. a door lock of washing machine, it comprises
The lock housing with base plate (11) and cover plate (12);
Be arranged on the drive unit in described lock housing;
Be arranged in described lock housing the locking piece (20) of the described lock housing that can lock out or retract;
Be arranged between described drive unit and described locking piece (20), the rotary power of described drive unit is converted into and drives described locking piece (20) to lock out or the transmission device of the power of retracted orientation;
It is characterized in that: described transmission device, under the driving of the rotary power of described drive unit, is made straight line back and forth movement, drive described locking piece (20) lock out or retract.
2. door lock of washing machine according to claim 1, it is characterized in that: the straight line back and forth movement direction of described transmission device and described locking piece (20) lock out or when retraction movement direction is in a certain angle, also comprise and being arranged between described transmission device and described locking piece (20), the straight line back and forth movement of described transmission device is converted to and drives described locking piece (20) to lock out or the conversion portion of retracted orientation back and forth movement.
3. door lock of washing machine according to claim 2, is characterized in that:
Described transmission device comprises the helical member (31) being connected with described drive unit, slidably be arranged on the pushing block (32) in lock housing, on described pushing block (32), form the slotted eye (33) mating with described helical member (31), in described slotted eye (33), form the ratchet clamping part (34) that is applicable to snapping in described helical member (31), described helical member (31) rotates, described ratchet clamping part (34) drives described pushing block (32) translation, also comprises the limiting structure that the described pushing block of restriction (32) rotates with described helical member (31);
Described conversion portion comprises oblique strip shaped hole (41) or the projection (42) being arranged on described pushing block (32), and being arranged on projection (42) or oblique strip shaped hole (41) that cooperation on described locking piece (20) is inserted, the cooperation by described oblique strip shaped hole (41) and described projection (42) is converted to by the straight line back and forth movement of described pushing block (32) motion that the described securing rod of drive lock out or retracts.
4. door lock of washing machine according to claim 3, it is characterized in that: described slotted eye (33) is made as the applicable screwed hole matching with described helical member (31), described ratchet clamping part (34) is for being molded over the oblique sheet of semicircle with the applicable angle of inclination engaging with described helical member (31) of described screwed hole inside.
5. door lock of washing machine according to claim 4, it is characterized in that: described drive unit is motor (51), described motor (51) is connected with wiring board (53) by two joint pins (52), between described motor (51) and described wiring board (53), be also provided with and prevent that described wiring board (53) is by the motor baffle plate (54) of described motor (51) wearing and tearing, on described wiring board (53), be connected with binding post (55), plug terminal (56) is connected with described binding post (55) through the jack on described base plate (11) bottom surface.
6. door lock of washing machine according to claim 5, it is characterized in that: the limit switch (60) that also comprises the power supply of the described motor of the control being arranged in described lock housing (51), described locking piece (20) lock out completely or retracts, described pushing block (32) triggers described limit switch (60), and the power supply of described motor (51) disconnects.
7. door lock of washing machine according to claim 6, it is characterized in that: on described pushing block (32), form the trigger unit (35) for triggering described limit switch (60), described limit switch (60) is provided with the first contact (61) and the second contact (62), described trigger unit (35) under the drive of described pushing part, reciprocating motion between described the first contact (61) and described the second contact (62).
8. according to the door lock of washing machine described in any one in claim 3-7, it is characterized in that: while being also included in lock-out state, the manual unlocking device that can carry out release by force to described locking piece (20).
9. door lock of washing machine according to claim 8, it is characterized in that: described manual unlocking device comprises that one end is fixedly connected with described pushing block (32), the other end stretches out the stay cord (70) outside described lock housing through the through hole on described base plate (11), and described stay cord (70) tension, described pushing block (32) is towards unlocking direction motion, drives described locking piece (20) to retract in described lock housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320747831.6U CN203546439U (en) | 2013-11-25 | 2013-11-25 | Door lock of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320747831.6U CN203546439U (en) | 2013-11-25 | 2013-11-25 | Door lock of washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203546439U true CN203546439U (en) | 2014-04-16 |
Family
ID=50464581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320747831.6U Withdrawn - After Issue CN203546439U (en) | 2013-11-25 | 2013-11-25 | Door lock of washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203546439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603170A (en) * | 2013-11-25 | 2014-02-26 | 温州天健电器有限公司 | Washing machine door lock |
-
2013
- 2013-11-25 CN CN201320747831.6U patent/CN203546439U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603170A (en) * | 2013-11-25 | 2014-02-26 | 温州天健电器有限公司 | Washing machine door lock |
| CN103603170B (en) * | 2013-11-25 | 2015-11-11 | 温州天健电器有限公司 | A kind of door lock of washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20151111 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |