CN105181248B - A kind of multi-functional model helicopter blade balance measuring instrument - Google Patents
A kind of multi-functional model helicopter blade balance measuring instrument Download PDFInfo
- Publication number
- CN105181248B CN105181248B CN201510676676.7A CN201510676676A CN105181248B CN 105181248 B CN105181248 B CN 105181248B CN 201510676676 A CN201510676676 A CN 201510676676A CN 105181248 B CN105181248 B CN 105181248B
- Authority
- CN
- China
- Prior art keywords
- balance
- blade
- oar head
- oar
- slide
- 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.)
- Active
Links
Landscapes
- Testing Of Balance (AREA)
Abstract
The present invention provides a kind of multi-functional model helicopter blade balance performance monitor, mainly including base, blade balanced component and oar head balanced component three parts.Used when the present invention is used to combine, dismounting, it is simple and reliable, after base is completed, blade balanced component is put with regard to the equilbrium position point of helicopter blade can be determined, the consistent helicopter blade of equilbrium position point is selected in help, and support is provided for the installation of helicopter blade；Putting oar head balanced component just can determine the dynamic balancing situation of the oar head after installing, and be easy to find the unbalance dynamic that oar head is likely to occur in operation process in time, reduce vibrations, the appearance of quick-fried oar.
Description
Technical field
The present invention provides a kind of multi-functional model helicopter blade balance measuring instrument, belongs to model helicopter blade, oar head
Measuring instrument technical field.
Background technology
The application of model helicopter be increasingly now it is extensive, taking photo by plane, monitor, touch and spill agricultural chemicals, transport small-sized goods
The fields such as thing are widely used.In the use of large-scale model helicopter, most it is troubling be exactly blade and oar head dynamic equilibrium problems.
The static balance of blade there are currently no very good measuring method, and the dynamic equilibrium problems measurement of oar head gets up even more extremely difficult, but
Measurement for this two contents is very important two contents again, and this directly concerns helicopter in the stability using process
And security.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of multi-functional model helicopter blade balance measuring instrument, it can be good at
Solve the above problems, realize the static balance of blade and the dynamic balancing measurement of oar head.
The technology path that the present invention is used for：A kind of multi-functional model helicopter blade balance measuring instrument, including support, company
Spindle, equalizer bearing, equalizer bearing axle, blade balance shaft, blade balance dial, blade balance pointer, blade are balanced
Balanced with sliding shoe, blade balance balance weight, blade balance bolt, blade balance V-type slip ring, compression spring, blade
Balanced with locking nut, blade balance slide, oar head balance shaft, oar head balance dial, oar head balance pointer, oar head
With sliding shoe, oar head balance balance weight, oar head balance bolt, oar head balance V-type slip ring, oar head balance slide, lock
Determine hole, oar head balance locking nut, oar head balance clamping screw, lock shaft, locking primary nut, it is characterised in that：It is described
Two supports be fixed together by connecting shaft, and keep bottom surface equal, four described equalizer bearings pass through balance
Bearing axle is rotatably installed on two supports, each two equalizer bearings of self installation on each support, and ensures two equalizer bearings
At grade, distance of shaft centers is in the distance range of a diameter to half of diameter, so far in axle center, and combinations thereof is the bottom of into
Seat；Described blade balance sliding shoe is slided in blade balance shaft, and blade balance is fixedly mounted with balance weight by slide rail
On blade balance sliding shoe, blade balance is arranged on indicators turn in the small rotating shaft of blade balance balance weight, it is ensured that
Can freely it rotate under gravity, two blade balances are with the symmetrical spinning of bolt in the both sides of blade balance balance weight, two
Individual blade balance with V-type slip ring spinning on two columns of blade balance balance weight, and with blade balance locking nut
Pin, prevent from coming off, blade balance is fixedly mounted on blade balance sliding shoe with slide by slide rail, compression spring clamp
Between slide plate and fixed plate on blade balance slide, it is ensured that slide plate can be slided under spring restoring force effect along slide rail
Dynamic, blade balance is rotatablely equipped with two blade balance V-type slip rings with the slide plate on slide, and with blade balance locking screw
Mother pins, and prevents from coming off, so far, and combinations thereof is into blade balanced component；Described oar head balance is slided with sliding shoe and is mounted in oar head
In balance shaft, oar head balance is fixedly mounted on oar head balance sliding shoe with balance weight by slide rail, oar head balance pointer
In the small rotating shaft for being rotatably installed in oar head balance balance weight, and guarantee freely to rotate under gravity, two oar heads are put down
Weighing apparatus is with the symmetrical spinning of bolt in the both sides of oar head balance balance weight, and two oar head balances are balanced with V-type slip ring spinning in oar head
With on two columns of balance weight, and pinned with oar head balance with locking nut, prevent from coming off, oar head balance slide passes through cunning
Rail is fixedly mounted on blade balance sliding shoe, and oar head balance is used with two blade balances are rotatablely equipped with the upper plate of slide
V-type slip ring, and pinned with oar head balance with locking nut, prevent from coming off, oar head balance is rotatablely equipped with the lower plate of slide
Two blade balances use V-type slip ring, and are pinned with oar head balance with locking nut, prevent from coming off, oar head balance shaft is provided with locking
Hole, oar head balance is with oar head balance clamping screw is provided with the back bracket of slide, so far, above-mentioned composition oar head balance group
Part.
Further, to be combined into blade measuring instrument, balanced by the blade in the blade balanced component that will combine
Axle is placed on the equalizer bearing on the base combined, and then constitutes blade balance measuring instrument.
Further, the oar head balance shaft in the oar head balanced component that will combine is passed through to be combined into oar head measuring instrument
It is placed on the equalizer bearing on the base combined, and then constitutes oar head balance measuring instrument, and lock shaft is installed on locking
In the lock hole of hole and connecting shaft, at the same it is with locking primary nut that the two ends of lock shaft are locked, and then constitute oar head balancing a survey
Instrument.
By using above-mentioned technology path, the present invention can realize the measurement of the static balance to model helicopter blade, so that
The equilbrium position point of blade is found out, and then selects blade of the equilbrium position point in reasonable error scope, model helicopter oar is completed
The assembling of leaf；Dynamically balanced measurement to model helicopter oar head can be realized, so that it is determined that oar head whether the meeting after rotating
Shake, jiggly problem, be that guidance is made in the use of oar head.
Brief description of the drawings
Fig. 1 is the model schematic of the base of the present invention.
Fig. 2 is the model schematic of the blade balanced component of the present invention.
Fig. 3 is the model schematic of the oar head balanced component of the present invention.
Fig. 4 is the back schematic diagram of the oar head balanced component of the present invention.
Fig. 5 is the schematic diagram of the blade measuring instrument of the present invention.
Fig. 6 is the schematic diagram of the oar head measuring instrument of the present invention.
Drawing reference numeral：1- supports；2- connecting shafts；4- equalizer bearing axles；5- blade balance shafts；6- blade balance scales
Disk；7- blade balance pointers；8- blade balance sliding shoes；9- blade balance balance weights；10- blade balance bolts；
11- blades balance uses V-type slip ring；12- compression springs；13- blade balance locking nuts；14- blade balance slides；15-
Oar head balance shaft；16- oar head balance dials；17- oar head balance pointers；18- oar head balance sliding shoes；19- oar heads
Balance balance weight；20- oar head balance bolts；21- oars head balance uses V-type slip ring；22- oar head balance slides；23- is locked
Hole；24- oar head balance locking nuts；25- oar head balance clamping screws；26- lock shafts；27- locks primary nut.
Embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings, and embodiments of the present invention include but is not limited to
The following example.
As shown in Figures 1 to 6, a kind of multi-functional model helicopter blade balance measuring instrument, including support 1, connecting shaft 2,
Equalizer bearing, equalizer bearing axle 4, blade balance shaft 5, blade balance dial 6, blade balance pointer 7, blade balance are used
Sliding shoe 8, blade balance balance weight 9, blade balance bolt 10, blade balance V-type slip ring 11, compression spring 12, oar
Leaf balance locking nut 13, blade balance slide 14, oar head balance shaft 15, oar head balance dial 16, oar head are balanced
With pointer 17, oar head balance with sliding shoe 18, oar head balance with balance weight 19, oar head balance with bolt 20, oar head balance V-type
Slip ring 21, oar head balance slide 22, lock hole 23, oar head balance locking nut 24, oar head balance clamping screw 25, lock
Dead axle 26, locking primary nut 27, it is characterised in that：Two described supports 1 are fixed together by connecting shaft 2, and are protected
Hold that bottom surface is equal, four described equalizer bearings are rotatably installed on two supports 1 by equalizer bearing axle 4, on each support 1
Each two equalizer bearings of self installation, and ensure two equalizer bearing axle center at grade, distance of shaft centers is in a diameter to one
In the distance range of individual half of diameter, so far, combinations thereof is into base；Described blade balance is slided with sliding shoe 8 is mounted in blade
In balance shaft 5, blade balance is fixedly mounted on blade balance sliding shoe 8 with balance weight 9 by slide rail, and blade balance is with referring to
Pin 7 is rotatably installed in the small rotating shaft of blade balance balance weight 9, it is ensured that can freely be rotated under gravity, two blades
Balance is with the symmetrical spinning of bolt 10 in the both sides of blade balance balance weight 9, and two blade balances are with the spinning of V-type slip ring 11 in oar
Leaf balance is used on two columns of balance weight 9, and is pinned with blade balance locking nut 13, prevents from coming off, and blade balance is used
Slide 14 is fixedly mounted on blade balance sliding shoe 8 by slide rail, and compression spring 12 is installed on blade balance slide 14
On slide plate and fixed plate between, it is ensured that slide plate spring restoring force effect under can be slided along slide rail, blade balance slide
Slide plate on 14 is rotatablely equipped with two blade balance V-type slip rings 11, and is pinned with blade balance locking nut 13, prevents
Come off, so far, combinations thereof is into blade balanced component；Described oar head balance is slided with sliding shoe 18 is mounted in oar head balance shaft 15
On, oar head balance is fixedly mounted on oar head balance sliding shoe 18 with balance weight 19 by slide rail, oar head balance pointer 17
In the small rotating shaft for being rotatably installed in oar head balance balance weight 19, and guarantee freely to rotate under gravity, two oar heads
Balance is with the symmetrical spinning of bolt 20 in the both sides of oar head balance balance weight 19, and two oar head balances are existed with the spinning of V-type slip ring 21
Oar head balance is used on two columns of balance weight 19, and is pinned with oar head balance locking nut 24, prevents from coming off, oar head balance
It is fixedly mounted on slide 22 by slide rail on blade balance sliding shoe 18, oar head balance rotation peace on the upper plate of slide 22
Pinned equipped with two blade balance V-type slip rings 11, and with oar head balance locking nut 24, prevent from coming off, oar head balance is used
Two blade balance V-type slip rings 11 are rotatablely equipped with the lower plate of slide 22, and are pinned with oar head balance locking nut 24,
Prevent from coming off, oar head balance shaft 15 is provided with lock hole 23, oar head balance is balanced with oar head is provided with the back bracket of slide 22
With clamping screw 25, so far, above-mentioned composition oar head balanced component.
Further, to be combined into blade measuring instrument, balanced by the blade in the blade balanced component that will combine
Axle 5 is placed on the equalizer bearing on the base combined, and then constitutes blade balance measuring instrument.
Further, the oar head balance shaft in the oar head balanced component that will combine is passed through to be combined into oar head measuring instrument
15 are placed on the equalizer bearing on the base combined, and then constitute oar head balance measuring instrument, and are installed on lock shaft 26
In lock hole 23 and the lock hole of connecting shaft, at the same it is with locking primary nut 27 that the two ends of lock shaft 26 are locked, and then constitute oar
Head balance measuring instrument.
The present invention operation principle be：For the measurement of blade static-balance, by according to the good blade measuring instrument of combinations thereof
Base be placed on a platform, then adjust two blades balance bolts 10, be blade balance pointer 7 in gravity
Whole good finger is acted in the centre position of blade balance dial 6, blade balance sliding shoe 8 and its installation is so ensured that
The blade for needing to measure, is then installed on the V-type of four blade balance V-type slip rings 11 by the balance of superincumbent all parts
In groove, and the position that slowly adjustment blade is sticked into, put down until blade balance pointer 7 refers under gravity again in blade
Weighing apparatus uses the centre position of dial 6, and so far blade balance is with the plane where the needle point 7 of pointer 7 perpendicular to platform basal plane
The balanced surface of blade, is made a mark with pen, after the measurement to multiple blades is completed, you can find out suitable blade, enter
Row is installed；For the measurement of oar head static balance, the base according to the good oar head measuring instrument of combinations thereof is placed on one
On platform, then adjust two oar heads balance bolts 20, be oar head balance pointer 17 gravity the whole good finger of effect in oar
The head balance centre position of dial 16, so ensure that oar head balance sliding shoe 18 and its be mounted above it is all
The balance of part, then puts down frame at the rotating shaft one for needing the oar head measured in oar head balance with two oar heads on balance weight 19
Weighing apparatus is between V-type slip ring 21, and another place is installed on it of four blade balance V-type slip rings 21 on oar head balance slide 22
Between, then oar head balance is locked with the oar head at the back balance clamping screw 25 of slide 22, it is ensured that rotating shaft is by stuck fast, so
Oar head is slowly rotated afterwards, is referred under gravity with pointer 17 in blade balance dial according to oar head balance in rotation process
6 position, you can determine whether the dynamic balance performance of oar head meets the requirements, is the installation of next step, using making guidance.
Claims (3)
1. a kind of multi-functional model helicopter blade balance measuring instrument, including support（1）, connecting shaft（2）, equalizer bearing, balance
Bearing axle（4）, blade balance shaft（5）, blade balance dial（6）, blade balance pointer（7）, blade balance slide
Block（8）, blade balance balance weight（9）, blade balance bolt（10）, blade balance use V-type slip ring（11）, compression spring
（12）, blade balance locking nut（13）, blade balance slide（14）, oar head balance shaft（15）, oar head balance scale
Disk（16）, oar head balance pointer（17）, oar head balance sliding shoe（18）, oar head balance balance weight（19）, oar head balance
Use bolt（20）, oar head balance use V-type slip ring（21）, oar head balance slide（22）, lock hole（23）, oar head balance locking
Nut（24）, oar head balance clamping screw（25）, lock shaft（26）, locking primary nut（27）, it is characterised in that：Described in two
Support（1）Pass through connecting shaft（2）It is fixed together, and keeps bottom surface equal, the equalizer bearing described in four passes through flat
Weigh bearing axle（4）It is rotatably installed in two supports（1）On, each support（1）Upper each two equalizer bearings of self installation, and ensure two
At grade, distance of shaft centers is in the distance range of a diameter to half of diameter, so far in individual equalizer bearing axle center, on
State and be combined into base；Described blade balance sliding shoe（8）It is sliding to be mounted in blade balance shaft（5）On, blade balance balance weight
（9）Blade balance sliding shoe is fixedly mounted on by slide rail（8）On, blade balance pointer（7）Blade is rotatably installed in put down
Weighing apparatus balance weight（9）Small rotating shaft on, it is ensured that can freely rotate under gravity, two blade balance bolts（10）Symmetrically
Spinning is in blade balance balance weight（9）Both sides, two blades balance uses V-type slip ring（11）Spinning is balanced in blade balance
Block（9）Two columns on, and with blade balance locking nut（13）Pin, prevent from coming off, blade balance slide（14）
Blade balance sliding shoe is fixedly mounted on by slide rail（8）On, compression spring（12）It is installed on blade balance slide（14）
On slide plate and fixed plate between, it is ensured that slide plate spring restoring force effect under can be slided along slide rail, blade balance slide
（14）On slide plate be rotatablely equipped with two blade balance V-type slip rings（11）, and with blade balance locking nut（13）Lock
Firmly, prevent from coming off, so far, combinations thereof is into blade balanced component；Described oar head balance sliding shoe（18）It is sliding to be mounted in oar head
Balance shaft（15）On, oar head balance balance weight（19）Oar head balance sliding shoe is fixedly mounted on by slide rail（18）On, oar
Head balance pointer（17）It is rotatably installed in oar head balance balance weight（19）Small rotating shaft on, and guarantee under gravity
Freely rotate, two oar head balance bolts（20）Symmetrical spinning is in oar head balance balance weight（19）Both sides, two oar heads
Balance uses V-type slip ring（21）Spinning is in oar head balance balance weight（19）Two columns on, and with oar head balance locking screw
It is female（24）Pin, prevent from coming off, oar head balance slide（22）Blade balance sliding shoe is fixedly mounted on by slide rail（18）
On, oar head balance slide（22）Upper plate on be rotatablely equipped with two blade balance V-type slip rings（11）, and balanced with oar head
Use locking nut（24）Pin, prevent from coming off, oar head balance slide（22）Lower plate on be rotatablely equipped with two blades balance
Use V-type slip ring（11）, and with oar head balance locking nut（24）Pin, prevent from coming off, oar head balance shaft（15）Provided with locking
Hole（23）, oar head balance slide（22）Back bracket on oar head balance clamping screw is installed（25）, so far, above-mentioned group
Into oar head balanced component.
2. a kind of multi-functional model helicopter blade balance measuring instrument as claimed in claim 1, it is characterised in that：By by group
Blade balance shaft in the blade balanced component closed（5）It is placed on the equalizer bearing on the base combined, and then group
Into blade balance measuring instrument.
3. a kind of multi-functional model helicopter blade balance measuring instrument as claimed in claim 1, it is characterised in that：By by group
Oar head balance shaft in the oar head balanced component closed（15）It is placed on the equalizer bearing on the base combined, and then group
Into oar head balance measuring instrument, and make lock shaft（26）It is installed on lock hole（23）In the lock hole of connecting shaft, at the same with locking
Primary nut（27）By lock shaft（26）Two ends it is locked, and then constitute oar head balance measuring instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510676676.7A CN105181248B (en) | 2015-10-19 | 2015-10-19 | A kind of multi-functional model helicopter blade balance measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510676676.7A CN105181248B (en) | 2015-10-19 | 2015-10-19 | A kind of multi-functional model helicopter blade balance measuring instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105181248A CN105181248A (en) | 2015-12-23 |
| CN105181248B true CN105181248B (en) | 2017-10-03 |
Family
ID=54903490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510676676.7A Active CN105181248B (en) | 2015-10-19 | 2015-10-19 | A kind of multi-functional model helicopter blade balance measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105181248B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109502050B (en) * | 2018-12-12 | 2024-04-02 | 山东智翼航空科技有限公司 | Unmanned aerial vehicle rotor overall static balance and bidirectional dynamic balance test system |
| CN109502051B (en) * | 2018-12-12 | 2024-04-02 | 山东智翼航空科技有限公司 | Unmanned aerial vehicle rotor overall static balance and unidirectional dynamic balance test system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1456796A1 (en) * | 1987-04-29 | 1989-02-07 | Предприятие П/Я Г-4780 | Method of balancing screw propeller |
| US5398550A (en) * | 1993-05-26 | 1995-03-21 | Magna-Matic Corporation | Blade balancer |
| CN101074896A (en) * | 2007-06-22 | 2007-11-21 | 武汉船用机械有限责任公司 | Method for measuring blade static-balance gravity center |
| CN101706349A (en) * | 2009-11-10 | 2010-05-12 | 武汉船用机械有限责任公司 | Static balancing method of whole propeller combination of adjustable pitch propellers |
| CN102944361A (en) * | 2012-12-06 | 2013-02-27 | 哈尔滨工业大学 | Device for calibrating dynamic balance parameter of helicopter rotor blade |
| CN104502020A (en) * | 2014-12-14 | 2015-04-08 | 惠阳航空螺旋桨有限责任公司 | Balance tool for detecting static balance state of blade |
-
2015
- 2015-10-19 CN CN201510676676.7A patent/CN105181248B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1456796A1 (en) * | 1987-04-29 | 1989-02-07 | Предприятие П/Я Г-4780 | Method of balancing screw propeller |
| US5398550A (en) * | 1993-05-26 | 1995-03-21 | Magna-Matic Corporation | Blade balancer |
| CN101074896A (en) * | 2007-06-22 | 2007-11-21 | 武汉船用机械有限责任公司 | Method for measuring blade static-balance gravity center |
| CN101706349A (en) * | 2009-11-10 | 2010-05-12 | 武汉船用机械有限责任公司 | Static balancing method of whole propeller combination of adjustable pitch propellers |
| CN102944361A (en) * | 2012-12-06 | 2013-02-27 | 哈尔滨工业大学 | Device for calibrating dynamic balance parameter of helicopter rotor blade |
| CN104502020A (en) * | 2014-12-14 | 2015-04-08 | 惠阳航空螺旋桨有限责任公司 | Balance tool for detecting static balance state of blade |
Non-Patent Citations (2)
| Title |
|---|
| 杨世涛.直升机主桨叶动平衡试验台研制.《测控技术》.2014,第33卷第22-25页. * |
| 王存堂等.船用螺旋桨静平衡计算机检测原理与实验研究.《船舶工程》.2011,第33卷(第2期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105181248A (en) | 2015-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Parks et al. | Simple pendulum determination of the gravitational constant | |
| CN105181248B (en) | A kind of multi-functional model helicopter blade balance measuring instrument | |
| CN105136364B (en) | A kind of stabilized platform sports ring eccentric moment measurement method | |
| CN103759618B (en) | The pick-up unit of axial clearance of double-row conical bearing | |
| CN101074896A (en) | Method for measuring blade static-balance gravity center | |
| CN104122036A (en) | Static-dynamic balance monitoring device for routine test centrifugal machine | |
| US20130036801A1 (en) | Apparatus and method for measuring moment of inertia | |
| CN106441898B (en) | A kind of test device of rolling bearing rotating accuracy | |
| CN207688850U (en) | The circle bounce gauge and detection device of brake drum | |
| CN109387330A (en) | A kind of static balance measuring device and Calculate Ways | |
| KR20110092524A (en) | Static balancing measuring apparatus | |
| CN109085654B (en) | Digital modeling simulation method for gravity gradiometer of rotating accelerometer | |
| CN208026430U (en) | A kind of tire dynamic and balance owner axle assembly | |
| CN109612632A (en) | A kind of general-purpose aircraft rudder weight balancing inspection method | |
| CN103927914A (en) | Moment disc with moment arm ruler | |
| CN205482981U (en) | Detection apparatus for a gyrounit for direction indicator products | |
| CN209116954U (en) | A kind of adjustable concentric shafts degree cubing | |
| KR101326280B1 (en) | Portable center of gravity measuring device | |
| CN114593870A (en) | Novel large-bearing flexible static balancing instrument | |
| CN206639471U (en) | A kind of static balance teaching appliance | |
| CN202403776U (en) | Weighing noodle box | |
| CN205505965U (en) | Senghi mil's backing roll saddle T value measuring device | |
| CN220829265U (en) | Tension balance | |
| US2564470A (en) | Continuous reading dead-weight pressure gauge | |
| US20220412833A1 (en) | Inertia measurement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170614 Address after: 202, room 3, building 34, 210000 Yin Yang Ying camp, Gulou District, Nanjing, Jiangsu Applicant after: Ye Dongda Address before: Is Cangzhou province Hebei City Luo village 062557 Renqiu City No. 966 Liang Zhao Zhen Applicant before: Gao Xiaomiao |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ye Dongda Inventor before: Gao Xiaomiao Inventor before: Feng Shengbing |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |