CN107433501B - A kind of finishing uses grinding device - Google Patents
A kind of finishing uses grinding device Download PDFInfo
- Publication number
- CN107433501B CN107433501B CN201710234148.5A CN201710234148A CN107433501B CN 107433501 B CN107433501 B CN 107433501B CN 201710234148 A CN201710234148 A CN 201710234148A CN 107433501 B CN107433501 B CN 107433501B
- Authority
- CN
- China
- Prior art keywords
- turn
- slot
- wheel
- dress
- tooth
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
- B24B7/182—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like for walls and ceilings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/047—Grinding heads for working on plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
A kind of finishing grinding device, including sander-casing, it is provided with the cyclic annular dress stretched up and down in sander-casing and closes slot, stretching, extension up and down is provided in ring-type dress conjunction slot and connection ring-type dress closes the middle part turn slot of slot, ring-type dress, which closes to be fixedly installed between lower wall on slot, connects bar, it connects and is fixedly installed with sliding pipe sleeve on bar, sliding is provided with ring chamber of the beginning towards middle part turn slot in pipe sleeve inner end, turn and turn frame can be slippingly installed up and down in middle part turn slot, turn frame can be connect to turn with sliding pipe sleeve inner end by turn bearing, side with teeth is installed in ring chamber, and tooth side is fixedly connected with turn frame, dress conjunction slot of the beginning towards ring chamber is additionally provided in sliding pipe sleeve, dress closes in groove top end and is fixedly installed with motor, turn turn axis is fixedly installed on motor, turn turn axis lower end extends downwardly into dress and closes in slot And it is fixedly installed with tooth-like wheel, tooth-like wheel is engaged with tooth side.
Description
Technical field
The present invention relates to polishing facility fields, and in particular to a kind of finishing uses grinding device.
Background technique
During house decoration, need that wall plaster coating is easy to keep metope uneven during traditional painting
It is whole, it is general to polish processing and polished by sander raised metope to need to polish to metope, in tradition
Sander in, grinding head is typically all directly to be fixedly connected with turn axis, is achieved that after motor switch triggering to polishing
The turn of head, is typically also to put everywhere, if accidentally triggering motor switch, it is easy to make to the personnel of surrounding when not used
At injury.
Summary of the invention
The purpose of the present invention is to provide a kind of finishing grinding device and its application methods, can overcome the prior art
Drawbacks described above.
According to the present invention, a kind of finishing grinding device of apparatus of the present invention, including sander-casing, outside the sander
It is provided with the cyclic annular dress stretched up and down in shell and closes slot, the cyclic annular dress, which closes, is provided with ring-type dress described in stretching, extension up and down and connection in slot
The middle part turn slot of slot is closed, the cyclic annular dress, which closes to be fixedly installed between lower wall on slot, connects bar, described to connect fixed peace on bar
Equipped with sliding pipe sleeve, ring chamber of the beginning towards the middle part turn slot, the middle part are provided in the sliding pipe sleeve inner end
Turn and turn frame can be slippingly installed up and down in turn slot, the turn frame and the sliding pipe sleeve inner end pass through turn
Bearing can connect to turn, and side with teeth be installed in the ring chamber, and the tooth side is fixedly connected with the turn frame, the cunning
Dress conjunction slot of the beginning towards the ring chamber is additionally provided in shifting pipe sleeve, the dress closes in groove top end and is fixedly installed with motor, institute
It states and is fixedly installed with turn turn axis on motor, the turn turn axis lower end extends downwardly into the dress and closes in slot and fix peace
Equipped with tooth-like wheel, the tooth-like wheel is engaged with the tooth side, and sander-casing lower end center is additionally provided with described in connection
The mider hole of middle part turn slot, and turn axis, the turn axis can be equipped with to turn by turn bearing in the mider hole
Upper end is provided with docking tooth-like wheel, and the docking tooth-like wheel pushes into the middle part turn slot, and turn axis lower end is fixed
It is provided with installation end, the installation end lower part is removably equipped with the grinding head for metope of polishing, the grinding head
Including rectangular mounting portion and round polishing portion, multiple bullet blocks are provided in the installation end, are provided in the grinding head more
A fixed point hole matched with the bullet block, turn frame lower end are provided with the beginning towards right in the docking tooth-like wheel
Interface slot, described interior to the internal tooth side matched with the docking tooth-like wheel is arranged in interface slot, turn frame upper end is also set
It is equipped with lifting gear, the sliding pipe sleeve front and rear sides are additionally provided with plus Slipped Clove Hitch structure, and described plus Slipped Clove Hitch structure includes dress and slot, turn
Wheel and strut.
Further technical solution, the lifting gear include the bar magnet being fixedly mounted in turn frame upper end and
The iron staff being fixedly mounted in the middle part turn groove top end is provided with inductance in the iron staff outer circle.
Further technical solution, described connect are equipped with pressure spring on bar, the pressure spring upper end and the sliding pipe sleeve are solid
Fixed connection, lower end are closed slot bottom end with the cyclic annular dress and are fixedly connected.
Further technical solution, the sum of the height of the turn frame and described thickness for docking tooth-like wheel are beyond in described
The width of portion's turn slot in the up-down direction.
Further technical solution, the docking tooth-like wheel top are provided with docking slope.
Further technical solution, the strut be fixedly mounted on it is described dress and slot in, the turn wheel can turn peace
On the strut, turn wheel outer ring is collided with the sander-casing.
The beneficial effects of the present invention are:
1. sliding pipe sleeve is urged upwardly, and bar magnet can adsorb iron staff under the elastic reaction of pressure spring, therefore, sliding pipe
Set is bonded with middle part turn groove top end, to reach extreme higher position, due to turn frame height with dock tooth-like wheel thickness it
With beyond the width of middle part turn slot in the up-down direction, therefore, sliding pipe sleeve is detached from tooth-like wheel is docked, due in pressure spring
Under the double action of the magnetic action of elastic reaction and bar magnet, sliding pipe sleeve can be made to keep with the disengaged position for docking tooth-like wheel
Stablize, at this point, being unable to drive grinding head turn when motor operation, thus certain safety effect can be played；
2. metope needs to polish, grinding head is installed to installation end and carries out making inductance be powered after fixing, inductance is logical
Iron staff lower end is set to generate magnetic pole identical with bar magnet upper end magnetic pole after electricity, so as to make sliding pipe sleeve and turn frame overcome pressure spring
Elastic reaction and slide downwards and make dock tooth-like wheel be mutually engaged with internal tooth side, then starter motor, makes tooth-like wheel turn simultaneously
Drive the turn of turn frame that can polish after grinding head turn so that turn frame can drive turn axis and grinding head turn
Construction；
3. sliding pipe sleeve is returned to original state again under the elastic reaction of pressure spring, therefore after inductance power-off
When encountering emergency, it so that grinding head is stopped turn in motor and the one of power-off of inductance, thus prevent thing
Therefore occur；
4. apparatus of the present invention structure is simple, easy to use, highly-safe, operation is firm.
Detailed description of the invention
It, below will be to embodiment or existing in order to illustrate more clearly of inventive embodiments or technical solution in the prior art
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only to invent
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of overall structure diagram of finishing grinding device of the invention.
Fig. 2 is the structural schematic diagram of arrow direction in Fig. 1.
Fig. 3 be in the present invention internal tooth side with dock tooth-like wheel it is fully mated when structural schematic diagram.
Fig. 4 is the structural schematic diagram of grinding head in the present invention.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
As shown in Figs 1-4, a kind of finishing grinding device of the invention, including sander-casing 10, outside the sander
It is provided with the cyclic annular dress stretched up and down in shell 10 and closes slot 11, the cyclic annular dress, which closes, to be provided with described in stretching, extension up and down and connection in slot 11
Ring-type dress closes the middle part turn slot 12 of slot 11, and the cyclic annular dress, which closes to be fixedly installed between lower wall on slot 11, connects bar 21, described
It connects and is fixedly installed with sliding pipe sleeve 20 on bar 21, be provided with the beginning towards the middle part turn in 20 inner end of sliding pipe sleeve
The ring chamber 200 of slot 12 turn and can slippingly be equipped with turn frame 30, the turn in the middle part turn slot 12 up and down
Frame 30 can be connect to turn with 20 inner end of sliding pipe sleeve by turn bearing, install side with teeth in the ring chamber 200
301, and the tooth side 301 is fixedly connected with the turn frame 30, is additionally provided with the beginning towards described in the sliding pipe sleeve 20
The dress of ring chamber 200 closes slot 201, and the dress closes in 201 top of slot and is fixedly installed with motor 51, is fixedly mounted on the motor 51
There is turn turn axis 52,52 lower end of turn turn axis extends downwardly into the dress and closes in slot 201 and be fixedly installed with dentation
Wheel 53, the tooth-like wheel is engaged with the tooth side 301, and the 10 lower end center of sander-casing is additionally provided in described in connection
The mider hole of portion's turn slot 12, and turn axis 40, the turn can be equipped with to turn by turn bearing in the mider hole
40 upper end of axis is provided with docking tooth-like wheel 400, and the docking tooth-like wheel 400 pushes into the middle part turn slot 12, the rotation
40 lower end of moving axis is fixedly installed installation end 401, and 401 lower part of installation end is removably equipped with for metope of polishing
Grinding head 402, the grinding head 402 includes rectangular mounting portion 405 and round polishing portion 406, is set in the installation end 401
Multiple bullet blocks 404 are equipped with, multiple fixed point holes 403 matched with the bullet block 404, institute are provided in the grinding head 402
State 30 lower end of turn frame be provided with the beginning towards in the docking tooth-like wheel 400 to interface slot 300, it is described interior to interface slot
The internal tooth side matched with the docking tooth-like wheel 400 is set in 300,30 upper end of turn frame is additionally provided with lifting gear,
20 front and rear sides of sliding pipe sleeve are additionally provided with plus Slipped Clove Hitch structure, and described plus Slipped Clove Hitch structure includes dress and slot 23, turn wheel 24 and branch
Bar 25.
Valuably, the lifting gear includes the bar magnet 31 being fixedly mounted in 30 upper end of turn frame and fixed peace
Iron staff 60 in 12 top of middle part turn slot is provided with inductance 61 in 60 outer circle of iron staff.
Valuably, described connect is equipped with pressure spring 22 on bar 21, and 22 upper end of pressure spring and the sliding pipe sleeve 20 are fixed
Connection, lower end are closed 11 bottom end of slot with the cyclic annular dress and are fixedly connected, and the pressure spring 22 is to push up the sliding pipe sleeve 20
Pressure.
Valuably, the sum of the height of the turn frame 30 and described thickness for docking tooth-like wheel 400 are revolved beyond the middle part
The dynamic width of slot 12 in the up-down direction, to can be docked with described when the sliding pipe sleeve 20 slides onto highest point upwards
Tooth-like wheel 400 is detached from.
Valuably, 400 top of docking tooth-like wheel is provided with docking slope, thus downward in the sliding pipe sleeve 20
Be conducive to being engaged for docking tooth-like wheel 400 and the internal tooth side when sliding.
Valuably, the strut 25 is fixedly mounted in the dress and slot 23, the turn wheel 24 can turn be mounted on
On the strut 25,24 outer ring of turn wheel is collided with the sander-casing 10, thus in about the 20 sliding pipe sleeve
When sliding, the frictional force between sliding pipe sleeve 20 and the sander-casing 10 can be effectively reduced by turn wheel 24.
When original state, under the elastic reaction of the pressure spring 22, the sliding pipe sleeve 20 is urged upwardly, and the magnetic
Stick 31 can adsorb the iron staff 60, and therefore, the sliding pipe sleeve 20 is bonded with 12 top of middle part turn slot, due to the rotation
The sum of the height of moving frame 30 and described thickness for docking tooth-like wheel 400 exceed the width of the middle part turn slot 12 in the up-down direction
Degree, therefore, the sliding pipe sleeve 20 are detached from the tooth-like wheel 400 that docks；
When metope needs to polish, grinding head is installed to the installation end 401 and makes the inductance 61 after being fixed
It being powered, the inductance 61 makes 60 lower end of iron staff generate magnetic pole identical with the 31 upper end magnetic pole of bar magnet after being powered, thus
The sliding pipe sleeve 20 and turn frame 30 can be made to overcome the elastic reaction of the pressure spring 22 and slide downwards and make the docking
Tooth-like wheel 400 is mutually engaged with the internal tooth side, then starts the motor 51, is made 53 turn of tooth-like wheel and is driven the rotation
30 turn of moving frame, so that the turn frame 30 can drive the turn axis 40 and grinding head turn, after grinding head turn
Carry out polished construction；After the inductance 61 powers off, the sliding pipe sleeve 20 returns again under the elastic reaction of the pressure spring 22
Original state is arrived again；When encountering emergency, the motor 51 or the one of power-off of the inductance 61 can all be made to beat
Bistrique stops turn.
The beneficial effects of the present invention are: sliding pipe sleeve is urged upwardly, and bar magnet can adsorb under the elastic reaction of pressure spring
Iron staff, therefore, sliding pipe sleeve are bonded with middle part turn groove top end, to reach extreme higher position, due to turn frame height with it is right
The sum of thickness of tooth-like wheel is connect beyond the width of middle part turn slot in the up-down direction, therefore, sliding pipe sleeve with dock tooth-like wheel
It is detached from, due to that under the double action of the magnetic action of the elastic reaction and bar magnet of pressure spring, can make to slide pipe sleeve and opposing teeth
The disengaged position of shape wheel keeps stablizing, at this point, being unable to drive grinding head turn when motor operation, thus can play certain safety
Effect；
When metope needs to polish, grinding head is installed to installation end and carries out making inductance be powered after fixing, inductance is powered
After so that iron staff lower end is generated identical with bar magnet upper end magnetic pole magnetic pole, so as to make sliding pipe sleeve and turn frame overcome pressure spring
Elastic reaction and slide downwards and make to dock tooth-like wheel and be mutually engaged with internal tooth side, then starter motor makes tooth-like wheel turn simultaneously band
Dynamic turn frame turn can carry out polishing and apply so that turn frame can drive turn axis and grinding head turn after grinding head turn
Work；
After inductance power-off, sliding pipe sleeve is returned to original state again under the elastic reaction of pressure spring, therefore
When encountering emergency, it so that grinding head is stopped turn in motor and the one of power-off of inductance, thus prevent accident
Occur；
Apparatus of the present invention structure is simple, easy to use, highly-safe, and operation is firm.
The above, the specific embodiment only invented, but invent protection scope be not limited thereto, it is any without
The change or replacement that creative work is expected are crossed, should all be covered within the protection scope of invention.Therefore, the protection scope of invention
It should be determined by the scope of protection defined in the claims.
Claims (1)
1. a kind of finishing grinding device, including sander-casing, it is characterised in that: be provided with stretching, extension up and down in sander-casing
Cyclic annular dress close slot, ring-type dress, which closes, is provided with stretching, extension up and down and connection ring-type dress closes the middle part turn slot of slot in slot, ring-type dress closes
It is fixedly installed between lower wall on slot and connects bar, connected and be fixedly installed with sliding pipe sleeve on bar, slid in pipe sleeve inner end and be provided with
Ring chamber of the beginning towards middle part turn slot turn and can slippingly be equipped with turn frame, turn in middle part turn slot up and down
Frame can be connect to turn with sliding pipe sleeve inner end by turn bearing, side with teeth be installed in ring chamber, and tooth side and turn frame are solid
It is fixed to connect, dress conjunction slot of the beginning towards ring chamber is additionally provided in sliding pipe sleeve, dress closes in groove top end and is fixedly installed with motor, horse
Up to turn turn axis is above fixedly installed with, turn turn axis lower end extends downwardly into dress and closes in slot and be fixedly installed with tooth-like wheel,
Tooth-like wheel is engaged with tooth side, and sander-casing lower end center is additionally provided with the mider hole of turn slot in the middle part of connection, and mider hole
In turn axis can be equipped with to turn by turn bearing, turn axis upper end is provided with docking tooth-like wheel, and docking tooth-like wheel heads into
Into middle part turn slot, turn axis lower end is fixedly installed installation end, and the installation end lower part is removably installed useful
In the grinding head of polishing metope, the grinding head includes rectangular mounting portion and round polishing portion, is provided in the installation end
Multiple bullet blocks are provided with multiple fixed point holes matched with the bullet block in the grinding head, and turn frame lower end is provided with out
End face is into docking tooth-like wheel to interface slot, the interior internal tooth side matched to setting in interface slot and docking tooth-like wheel, turn
Frame upper end is additionally provided with lifting gear, and the sliding pipe sleeve front and rear sides are additionally provided with plus Slipped Clove Hitch structure, and described plus Slipped Clove Hitch structure includes
Dress and slot, turn wheel and strut；Wherein, the lifting gear include the bar magnet being fixedly mounted in turn frame upper end and
The iron staff being fixedly mounted in the middle part turn groove top end is provided with inductance in the iron staff outer circle；Wherein, described to connect bar
On pressure spring is installed, the pressure spring upper end is fixedly connected with the sliding pipe sleeve, and lower end is closed slot bottom end with the cyclic annular dress and fixed
Connection；Wherein, the sum of the height of the turn frame and described thickness for docking tooth-like wheel are beyond the middle part turn slot upper and lower
Width on direction；Wherein, the docking tooth-like wheel top is provided with docking slope；Wherein, the strut is fixedly mounted on
In the dress and slot, the turn wheel can turn be mounted on the strut, outside turn wheel outer ring and the sander
Shell phase is touched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234148.5A CN107433501B (en) | 2017-04-11 | 2017-04-11 | A kind of finishing uses grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234148.5A CN107433501B (en) | 2017-04-11 | 2017-04-11 | A kind of finishing uses grinding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107433501A CN107433501A (en) | 2017-12-05 |
| CN107433501B true CN107433501B (en) | 2019-02-12 |
Family
ID=60458597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710234148.5A Expired - Fee Related CN107433501B (en) | 2017-04-11 | 2017-04-11 | A kind of finishing uses grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107433501B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2673424A (en) * | 1950-12-09 | 1954-03-30 | Glaceries Sambre Sa | Apparatus for surfacing glass sheets |
| US3353305A (en) * | 1965-01-27 | 1967-11-21 | Bliss E W Co | Tilted spindle grinder |
| CN86206994U (en) * | 1986-09-19 | 1987-11-07 | 何章鸣 | Vibrating and rotating grinding wheel head attached to a lathe |
| KR20000018620A (en) * | 1998-09-03 | 2000-04-06 | 윤종용 | Cmp apparatus for manufacturing semiconductor devices |
| KR20090016268A (en) * | 2007-08-10 | 2009-02-13 | 주식회사 동부하이텍 | Polishing head fixing apparatus using magnet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58132449A (en) * | 1982-01-29 | 1983-08-06 | Toshiba Corp | Polisher |
-
2017
- 2017-04-11 CN CN201710234148.5A patent/CN107433501B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2673424A (en) * | 1950-12-09 | 1954-03-30 | Glaceries Sambre Sa | Apparatus for surfacing glass sheets |
| US3353305A (en) * | 1965-01-27 | 1967-11-21 | Bliss E W Co | Tilted spindle grinder |
| CN86206994U (en) * | 1986-09-19 | 1987-11-07 | 何章鸣 | Vibrating and rotating grinding wheel head attached to a lathe |
| KR20000018620A (en) * | 1998-09-03 | 2000-04-06 | 윤종용 | Cmp apparatus for manufacturing semiconductor devices |
| KR20090016268A (en) * | 2007-08-10 | 2009-02-13 | 주식회사 동부하이텍 | Polishing head fixing apparatus using magnet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107433501A (en) | 2017-12-05 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20181225 Address after: 324100*No.40, Yezhuwu Natural Village, Lixian Village, Yutou Town, Hecun Town, Jiangshan City, Quzhou City, Zhejiang Province Applicant after: Jiangshan Meixuan Door Industry Co., Ltd. Address before: 510890 SAST 1 Huadong Town, Huadu District, Guangzhou, Guangdong 2, 303-2 Applicant before: Guangzhou Ji rabbit Industrial Design Co. |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191206 Address after: 435401 Wuxue City, Huanggang City, Hubei Province Patentee after: Hubei Xingyu pump industry Limited by Share Ltd Address before: 324100 Yutou Lixian Village, Hecun Town, Jiangshan City, Quzhou City, Zhejiang Province, No. 40, Yezhuwu Natural Village Patentee before: Jiangshan Meixuan Door Industry Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190212 Termination date: 20200411 |
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| CF01 | Termination of patent right due to non-payment of annual fee |