CN208031669U - Laser visual acuity therapeutic instrument for rehabilitation - Google Patents
Laser visual acuity therapeutic instrument for rehabilitation Download PDFInfo
- Publication number
- CN208031669U CN208031669U CN201721685433.0U CN201721685433U CN208031669U CN 208031669 U CN208031669 U CN 208031669U CN 201721685433 U CN201721685433 U CN 201721685433U CN 208031669 U CN208031669 U CN 208031669U
- Authority
- CN
- China
- Prior art keywords
- laser
- light
- light beam
- output
- rehabilitation
- 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
- 230000001225 therapeutic effect Effects 0.000 title claims abstract description 17
- 230000004304 visual acuity Effects 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 21
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims description 6
- 238000007726 management method Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 201000009487 Amblyopia Diseases 0.000 abstract description 8
- 208000001491 myopia Diseases 0.000 abstract description 4
- 230000004379 myopia Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000013500 data storage Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a kind of laser visual acuity therapeutic instrument for rehabilitation, it includes casing, and the top of casing is equipped with light beam output universal regulator, working condition display screen, and casing internal is equipped with laser output control circuit, wherein：Laser output control circuit includes microcontroller, and helium neon laser generator, timing module, working condition display screen, speed probe and microcontroller connect, and speed regulating motor is connect via motor drive module with microcontroller；Cover blade is installed on the output shaft of speed regulating motor；Speed probe is mounted on speed regulating motor；The laser beam delivery outlet of helium neon laser generator is opposite with the light beam output light inlet of universal regulator, and cover blade is in the light path between the laser beam delivery outlet of helium neon laser generator and the light inlet of light beam output universal regulator.The utility model can realize youngsters and children the eye treatment of amblyopia, myopia, simple to operate, and laser beam projects direction and easily adjusts, and equipment performance and control accuracy are high.
Description
Technical field
Teenager, children's eyes amblyopia, near-sighted laser visual acuity therapeutic instrument for rehabilitation are treated the utility model is related to a kind of, is belonged to
In eyes rehabilitation apparatus field.
Background technology
Amblyopia patient's generally existing in youngsters and children is irradiated treatment currently with He-Ne Lasers to amblyopia patient
It is a kind of technology in theory, all more ripe in practice, is typically to send out certain wavelength using helium neon laser generator
Laser beam is rotated by the motor band movable vane piece with certain rotation speed operation, to make patient see the laser beam of frequency variation,
To realize the irradiation treatment to eyes of patients.But it can be found that having amblyopia treatment technology master during actual therapeutic
There are following defects：First, the circuit of existing amblyopia therapeutic equipment is using separating component, the shortcomings that separating component
It is that control accuracy is poor, in terms of being mainly manifested in rotating speed and time control to speed regulating motor, in addition with the extension of usage time, surveys
The drift of numerical quantity is big, and the duration of laser beam, pulse frequency dispersibility can be caused to become larger, to cause the technology of equipment
Index is abnormal and deviates specified value, increases equipment failure rate, and separating component is fragile, service life is short, can not
Ensure that equipment is run steadily in the long term.Second, the direction for the laser beam that existing amblyopia therapeutic equipment projects is changeless, is controlled
The eye of patient can only be made to be irradiated to by laser beam by repeatedly adjusting the height of patientchair when treatment, this certainly will give treatment
Great inconvenience is brought, it is invisible to extend treatment time, waste the time of patient and doctor.
Utility model content
The purpose of this utility model is to provide a kind of laser visual acuity therapeutic instrument for rehabilitation, can be realized to youngsters and children weak
Depending on the eye treatment of, myopia, simple to operate, laser beam projects direction and easily adjusts, and equipment performance and control accuracy are high.
To achieve the goals above, the utility model uses following technical scheme：
A kind of laser visual acuity therapeutic instrument for rehabilitation, it is characterised in that：It includes casing, and the top of casing is equipped with light beam and exports ten thousand
To adjuster, working condition display screen, casing internal is equipped with laser output control circuit, wherein：Laser output control circuit packet
Microcontroller is included, helium neon laser generator, timing module, working condition display screen, speed probe and microcontroller connect, speed governing electricity
Machine is connect via motor drive module with microcontroller；Cover blade is installed on the output shaft of speed regulating motor；Speed probe is pacified
On speed regulating motor；The laser beam delivery outlet of helium neon laser generator exports the light inlet phase of universal regulator with light beam
Right, cover blade is between the laser beam delivery outlet of helium neon laser generator and the light inlet of light beam output universal regulator
Light path on.
The utility model has the advantages that：
The utility model is based on frequency conversion laser light beam, and the eye treatment of amblyopia, myopia, operation can be realized to youngsters and children
It is convenient, easy, laser beam project direction can flexible modulation, equipment control accuracy is high, dependable performance, and service life is long.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the left view partial schematic diagram of Fig. 1.
Fig. 3 is the circuit composition frame chart of the utility model.
Specific implementation mode
As shown in Figure 1 to Figure 3, the utility model laser visual acuity therapeutic instrument for rehabilitation includes casing 10, and the top of casing 10 is set
There are light beam output universal regulator 50, working condition display screen 40, casing 10 to be internally provided with laser output control circuit, wherein：
Laser output control circuit includes microcontroller 11, and helium neon laser generator 14, working condition display screen 40, turns timing module 17
The signal port of fast sensor 16 is connect with the corresponding signal port of microcontroller 11 respectively, the signal port of speed regulating motor 13 via
Motor drive module 12 is connect with the corresponding signal port of microcontroller 11；Cover blade is installed on the output shaft of speed regulating motor 13
60；Speed probe 16 is mounted on speed regulating motor 13, the rotating speed for measuring speed regulating motor 13；Helium neon laser generator 14
Laser beam delivery outlet is opposite with the light beam output light inlet of universal regulator 50, and cover blade 60 is in helium neon laser generator
In light path between the light inlet of 14 laser beam delivery outlet and light beam output universal regulator 50.
Such as Fig. 1, laser output control circuit may also include the loud speaker 22 on casing 10, the signal end of loud speaker 22
Mouth is connect via voice enhanced processing module 21 with the corresponding signal port of microcontroller 11.
Such as Fig. 1, laser output control circuit may also include using management communication module 19, use management communication module 19
Signal port is connect with the corresponding signal port of microcontroller 11.
In addition, laser output control circuit may also include data storage 18, the signal port and list of data storage 18
The corresponding signal port of piece machine 11 connects, such as Fig. 1.
Several control buttons 30, such as power switch, startup/stop button etc. can be also installed on 10 top surface of casing.When
So, in actual design, laser output control circuit can also be designed with other complementary devices such as luminous indicating lamp or electricity
Road, it is without limitations.
Such as Fig. 3, helium neon laser generator 14 is powered by external 1500V power supplys 15.Laser output control circuit is by 220V
Power supply power supply.Speed regulating motor 13 for example selects DC speed-changing motor.
In the present invention, the laser light that light beam output universal regulator 50 is used to export helium neon laser generator 14
Shu Jinhang light beams expand and the change of optical path direction, sufficient irradiation treatment is carried out to eyes of patients to facilitate.
Such as Fig. 1 and Fig. 2, light beam output universal regulator 50 includes the bearing block 54 being installed on 10 top surface of casing, bearing
Seat 54 is equipped with light inlet, is equipped with beam expanding lens on light inlet, is rotatably mounted on bearing block 54 and in the horizontal direction may be used
The pillar 57 of rotation, light beam output cover 51 are installed in rotation on pillar in the vertical direction by rotation axis (not shown)
On 57, speculum 53 is installed on the part that rotation axis is in light beam output cover 51, speculum 53 is rotated together with rotation axis,
Tilt adjustment knob 55 is installed on one end of rotation axis stretching light beam output cover 51, the rotation of tilt adjustment knob 55 can be real
The now adjusting of the pitch angle to speculum 53 in the vertical direction realizes laser beam outbound course in the vertical direction
Pitch angle is adjusted, and the light output end of light beam output cover 51 is equipped with light-emitting window 56, and light extraction glass is embedded on light-emitting window 56
Glass 52.
In actual design, preferably, light extraction glass 52 be equipped with only allow red laser light beam by optical filter.When
After equipment is used for a long time, dust can be deposited on beam expanding lens, speculum 53, influences the red laser light of 56 final output of light-emitting window
The precision of beam, and optical filter only allows red laser light beam to pass through, therefore can reach permanent and high-precision output red is kept to swash
The purpose of light light beam.
In actual use, light beam output universal regulator 50, which realizes, swashs the red that helium neon laser generator 14 emits
After light light beam is expanded via beam expanding lens, speculum 53 reflects, then via the process of the output of light-emitting window 56.Light beam exports universal tune
It is easy to operate to save device 50, flexible adjustment, and its is compact-sized, small and exquisite, occupies little space, and aesthetic appearance is strong.
In the present invention, helium neon laser generator 14, speed probe 16, speed regulating motor 13 etc. be this field
There are equipment or device, timing module 17 motor drive module 12, to use management communication module 19, working condition display screen 40, language
These non-separating components such as sound enhanced processing module 21 are module known in the art, therefore its specific composition is not detailed herein
It states.
The course of work and operation principle of the utility model be：
It is 623.8nm that the energization of helium neon laser generator 14, which sends out wavelength, and power is 4.5mW~6.5mW, and spot diameter is
The continuous red laser light beam of 2mm, laser beam via speed regulating motor 13 drive rotation cover blade 60 shielding light with release
After the processing given out light, becomes variable-frequency pulse laser beam and inject light beam output cover 51, through beam expanding lens in light beam output cover 51
It expands, after speculum 53 reflects, is projected through light-emitting window 56, hot spot is spread in the position apart from about 2 meters of light-emitting window 56
It for the light beam of a diameter of 8cm, is just radiated on the eye of patient, to be irradiated treatment to eyes of patients.
In actual implementation, the velocity of rotation of cover blade 60 is controlled by microcontroller 11 by motor drive module 12
System, preferably, laser beam is exported with release with three kinds of frequency cycles by blocking for cover blade 60, these three frequencies difference
For 15Hz (duration 15s), 20Hz (duration 15s), 25Hz (duration 15s).Wherein, laser beam is in each frequency
Continuous output time in rate is monitored by timing module 17, and in addition timing module 17 is also responsible for supervising entire treatment time
Control.When reaching treatment time, timing module 17 sends out stop signal to microcontroller 11, and it is out of service that microcontroller 11 controls complete machine
And music (may also be combined with light stroboscopic and implement light prompting) is played by 21 controlling loudspeaker 22 of voice enhanced processing module, it carries
Show that operating personnel arrive treatment time.
In actual implementation, the frequency of the laser beam of laser output control circuit output should be between 10Hz-35Hz.
In 13 operational process of speed regulating motor, the rotating speed of detection speed regulating motor 13 and by testing number in real time of speed probe 16
Value feeds back to microcontroller 11, and the difference between the setting speed and actual speed of speed regulating motor 13 is compared by microcontroller 11, is on duty
When being worth excessive, by motor drive module 12 come the rotating speed of dynamic control speed regulating motor 13, speed regulating motor 13 is made to maintain setting fortune
Row state realizes rotating speed offset correction purpose, it is ensured that the accurate performance of equipment.
In practical operation, by rotation post 57, pillar 57 drives light beam output cover 51 to turn in the horizontal direction together
It is dynamic, to realize adjusting in the horizontal direction to the injection direction of laser beam, in addition, by rotating tilt adjustment knob 55, borrow
It is real in the vertical direction to the injection direction of laser beam by the adjusting in the vertical direction to the pitch angle of speculum 53
It now lifts, (tilt angles of adjusting are in reasonable range low tilt adjustment, so that light beam can be from going out optical window
Mouth 56 exports), to meet the needs of patient is to laser beam difference light direction.
From the point of view of actual use, light beam output universal regulator 50 allows laser beam on horizontal and vertical direction
It realizes that cooperation is adjusted, completes the change of light path any direction, and simple and practicable.
In actual operation, working condition display screen 40 can be to letters such as light beam output frequency, operation hours, alarms
Breath is shown.
The utility model has the advantages that：
1, the utility model substitutes separating component using modularized circuit design, solves because separating component is brought
The shortcomings of control accuracy is poor, measured value drift is big, equipment failure rate is high, fragile, service life is short, it is easy to operate easy
Row, the control accuracy height of equipment, dependable performance are suitable for popularizing.
2, the utility model is additionally arranged light beam output universal regulator, compact-sized, small and exquisite, easy to operate, adjusts spirit
It is living, so that the injection direction of laser beam is suitably adjusted according to the demand of different patients, substantially reduces treatment time,
The time of doctor and patient are saved.
3, the utility model is additionally arranged using management communication module, is facilitated user to understand the treatment of oneself, is made control
Center can understand the service condition of equipment and realize remote control in real time.
The above is the utility model preferred embodiment and its technical principle used, for those skilled in the art
It is any based on technical solutions of the utility model basis without departing substantially from the spirit and scope of the utility model for member
On equivalent transformation, simple replacement etc. it is obvious change, belong within scope of protection of the utility model.
Claims (7)
1. a kind of laser visual acuity therapeutic instrument for rehabilitation, it is characterised in that：It includes casing, and the top of casing is universal equipped with light beam output
Adjuster, working condition display screen, casing internal are equipped with laser output control circuit, wherein：Laser output control circuit includes
Microcontroller, helium neon laser generator, timing module, working condition display screen, speed probe and microcontroller connect, speed regulating motor
It is connect with microcontroller via motor drive module；Cover blade is installed on the output shaft of speed regulating motor；Speed probe is installed
On speed regulating motor；The laser beam delivery outlet of helium neon laser generator is opposite with the light beam output light inlet of universal regulator,
Cover blade is between the laser beam delivery outlet of helium neon laser generator and the light inlet of light beam output universal regulator
In light path.
2. laser visual acuity therapeutic instrument for rehabilitation as described in claim 1, it is characterised in that：
The laser output control circuit includes the loud speaker being set on the casing, and loud speaker is via voice enhanced processing module
It is connect with the microcontroller.
3. laser visual acuity therapeutic instrument for rehabilitation as described in claim 1, it is characterised in that：
The laser output control circuit includes being connected using management communication module and the microcontroller using management communication module
It connects.
4. laser visual acuity therapeutic instrument for rehabilitation as described in claim 1, it is characterised in that：
The helium neon laser generator is by external 1500V power supply power supplies.
5. laser visual acuity therapeutic instrument for rehabilitation according to any one of claims 1 to 4, it is characterised in that：
The light beam output universal regulator includes the bearing block being installed on the casing top surface, and bearing block is equipped with into light
Mouthful, beam expanding lens is installed on light inlet, it is defeated that rotatable pillar, light beam in the horizontal direction are rotatably mounted on bearing block
Go out cover to be installed in rotation on pillar in the vertical direction by rotation axis, rotation axis is on the part in light beam output cover
Speculum is installed, rotation axis, which is stretched out on one end that light beam output is covered, is equipped with tilt adjustment knob, the light extraction of light beam output cover
End face is equipped with light-emitting window, and light extraction glass is embedded on light-emitting window.
6. laser visual acuity therapeutic instrument for rehabilitation as claimed in claim 5, it is characterised in that：
The light extraction glass is equipped with optical filter.
7. laser visual acuity therapeutic instrument for rehabilitation as described in claim 1, it is characterised in that：
The frequency of the laser beam of the laser output control circuit output is between 10Hz-35Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721685433.0U CN208031669U (en) | 2017-12-06 | 2017-12-06 | Laser visual acuity therapeutic instrument for rehabilitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721685433.0U CN208031669U (en) | 2017-12-06 | 2017-12-06 | Laser visual acuity therapeutic instrument for rehabilitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208031669U true CN208031669U (en) | 2018-11-02 |
Family
ID=63958945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721685433.0U Active CN208031669U (en) | 2017-12-06 | 2017-12-06 | Laser visual acuity therapeutic instrument for rehabilitation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208031669U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450420A (en) * | 2020-04-08 | 2020-07-28 | 北京光彩明天儿童眼科医院有限公司 | Brain function rehabilitation therapeutic apparatus |
| CN113398490A (en) * | 2021-06-24 | 2021-09-17 | 赣南医学院第一附属医院 | Pulse laser beauty therapeutic instrument |
| CN113908026A (en) * | 2021-09-22 | 2022-01-11 | 郭忠良 | Open type eye muscle trainer and training method thereof |
| CN114099985A (en) * | 2021-11-29 | 2022-03-01 | 苏州宣嘉光电科技有限公司 | Method and device for adjusting light source module by recognizing image characteristics |
| CN114099984A (en) * | 2021-11-29 | 2022-03-01 | 苏州宣嘉光电科技有限公司 | Vision training device and vision training instrument |
-
2017
- 2017-12-06 CN CN201721685433.0U patent/CN208031669U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450420A (en) * | 2020-04-08 | 2020-07-28 | 北京光彩明天儿童眼科医院有限公司 | Brain function rehabilitation therapeutic apparatus |
| CN113398490A (en) * | 2021-06-24 | 2021-09-17 | 赣南医学院第一附属医院 | Pulse laser beauty therapeutic instrument |
| CN113908026A (en) * | 2021-09-22 | 2022-01-11 | 郭忠良 | Open type eye muscle trainer and training method thereof |
| CN114099985A (en) * | 2021-11-29 | 2022-03-01 | 苏州宣嘉光电科技有限公司 | Method and device for adjusting light source module by recognizing image characteristics |
| CN114099984A (en) * | 2021-11-29 | 2022-03-01 | 苏州宣嘉光电科技有限公司 | Vision training device and vision training instrument |
| CN114099985B (en) * | 2021-11-29 | 2024-01-26 | 苏州宣嘉光电科技有限公司 | Device for adjusting light source module by recognizing image characteristics |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208031669U (en) | Laser visual acuity therapeutic instrument for rehabilitation | |
| CN101156815B (en) | A comprehensive therapeutical instrument for amblyopia with three-level vision function | |
| CN101966074B (en) | Automatic comprehensive optometry unit | |
| CN102743252B (en) | Intelligent head-wearing eyesight protection instrument | |
| JP2016538094A (en) | Blood pump control system and blood pump system | |
| CN106526863B (en) | A kind of glasses | |
| CN111407612A (en) | Vision improvement training instrument | |
| CN103479472A (en) | Multifunctional comprehensive amblyopia therapeutic apparatus and control method thereof | |
| CN113168901A (en) | Controlling light illumination for circadian phase management | |
| CN105830775B (en) | A kind of intelligent flowerpot system and method automatically moved | |
| CN109436032A (en) | A kind of high-speed rail passenger getting off car alarm set | |
| CN201104951Y (en) | Lazy eye therapeutic equipment | |
| CN104622610B (en) | Sitting-posture correction device based on infrared line-of-sight monitoring | |
| CN103479471B (en) | Intelligent amblyopic treatment instrument and control method thereof | |
| CN113079695B (en) | Instrument for correcting children's vision by using optical stimulus | |
| CN206975805U (en) | A kind of prompting device for being used for pre- myopia prevention and sitting correction set | |
| CN107951685A (en) | A kind of wear-type Plane Rotation overturns mirror | |
| CN111258072B (en) | Head-wearing adjusting method, head-wearing adjusting device and head-wearing display equipment | |
| CN103100127A (en) | Novel transfusion controller | |
| CN204910028U (en) | Wear -type is adjusted sensitivity and is measured intelligence training appearance | |
| CN104274304A (en) | Rotating disc adjusting structure and eye caring equipment adopting same | |
| CN208770331U (en) | A kind of wear-type Plane Rotation overturning mirror | |
| CN213099204U (en) | Vision improvement training instrument | |
| CN110459041A (en) | A kind of head angle precaution device | |
| CN105832301A (en) | Smart glasses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190718 Address after: Room 2006, integrated centre, 302-308 Hennessy Road, Wanchai, Hongkong, China Patentee after: HONG KONG FORTUNE TECHNOLOGY LTD. Address before: Room 601, Block B, 17 Wanshou Road, Haidian District, Beijing 100036 Patentee before: BEIJING ZEQIANDAI TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220526 Address after: Room 501, building 1, No. 168, Majian Road, high tech Zone, Suzhou, Jiangsu Patentee after: Tiancai Guangcai medical technology (Suzhou) Co.,Ltd. Address before: Room 2006, integrated center, 302-308 Hennessy Road, Wan Chai, Hongkong, China Patentee before: HONG KONG FORTUNE TECHNOLOGY LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240117 Address after: 518054 room 205, floor 2, building 5, Qianhai Shenzhen Hong Kong youth dream factory, No. 35, Qianwan 1st Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong Patentee after: Zhonggang Dafu Science and Technology (Shenzhen) Co.,Ltd. Address before: Room 501, building 1, No. 168, Majian Road, high tech Zone, Suzhou, Jiangsu 215000 Patentee before: Tiancai Guangcai medical technology (Suzhou) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240313 Address after: Room 3515, 1st Floor, Building 1, No. 2 Yongcheng North Road, Haidian District, Beijing, 100000 Patentee after: Beijing Guangcai Tomorrow Kangshi Medical Technology Co.,Ltd. Country or region after: China Address before: 518054 room 205, floor 2, building 5, Qianhai Shenzhen Hong Kong youth dream factory, No. 35, Qianwan 1st Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong Patentee before: Zhonggang Dafu Science and Technology (Shenzhen) Co.,Ltd. Country or region before: China |