CN112212273A - Intelligent city street lamp - Google Patents
Intelligent city street lamp Download PDFInfo
- Publication number
- CN112212273A CN112212273A CN202011058541.1A CN202011058541A CN112212273A CN 112212273 A CN112212273 A CN 112212273A CN 202011058541 A CN202011058541 A CN 202011058541A CN 112212273 A CN112212273 A CN 112212273A
- Authority
- CN
- China
- Prior art keywords
- lamp
- arm
- ring
- rod
- city street
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
- F21S9/03—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
- F21S9/035—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light the solar unit being integrated within the support for the lighting unit, e.g. within or on a pole
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/006—General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Abstract
The invention discloses an intelligent city street lamp, which structurally comprises: the intelligent lamp plate is vertically fixed on the outer edge of the rod body, the upper end of the rod body is connected with the lamp bar through a cross rod, an internal circuit of the lamp bar is connected with the solar panel through a conducting wire, and the solar panel is arranged at the top of the control box and is electrically connected with the control box; has the advantages that: the multi-directional push arm is connected with the lamp box, the driving middle ring in the multi-directional push arm is matched with the central spiral ring, the magnetic separator is closed to control the opening and closing of the lamp box, the movable blade and the magnetic separator form an umbrella-shaped structure to form a temporary rain shielding belt, urban residents can go out more conveniently, and dust on the surface of the lamp box is cleaner under the washing of rainwater.
Description
Technical Field
The invention discloses an intelligent urban street lamp, and belongs to the field of municipal facilities.
Background
The night of city is because of natural lighting is not enough, all fall in the dark, people's activity is restricted, the street lamp has created artificial lighting environment, the needs of citizen's activity have been satisfied, make the night of city consequently active, firstly, the visibility at people night has been increased, improve the sense of security, create comfortable pleasing social activity at night, the space of communication, secondly, guarantee the safety of vehicle and pedestrian's activity at night, reduce traffic accident and crime at night, the emergence of violent incident, finally, satisfy the regional functional need in city difference, provide lighting conditions for the activity of each subregion and traffic each other, contact, but current street lamp has some problems: general lamp tablet is the after-loading formula, and is comparatively unstable with the cooperation of street lamp body of rod, and because the baffle is great easily is scraped the deformation in strong wind weather easily, and the lamp tablet function singleness, can't further bring convenience for city residents as propaganda article only.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an intelligent urban street lamp to solve the problems that the street lamp is unstable in matching with a street lamp rod body, a baffle is large and is easy to be scratched and deformed in strong weather, and a lamp board has a single function and cannot be used as a propaganda object to further bring convenience to urban residents.
In order to achieve the purpose, the invention is realized by the following technical scheme: an intelligent city street lamp, its structure includes: intelligence lamp tablet, the body of rod, lamp strip, solar panel, control box, intelligence lamp tablet vertical fixation is on the outer edge of the body of rod, the body of rod upper end is connected with the lamp strip through the horizontal pole, lamp strip inner circuit is connected with solar panel through the wire, solar panel installs at the top of control box, and connects through the electricity.
Preferably, the intelligent lamp plate is composed of a multidirectional pushing arm, a protective middle plate, a lamp box, a fixed sleeve shaft, a driving screw and a motor, the multidirectional pushing arm is arranged in the middle of the lamp box, the protective middle plate is fixed on the side edge of the lamp box through a bolt, the multidirectional pushing arm is mechanically connected with the motor at the bottom through the driving screw, the motor shell is fixed in an inner cavity of the rod body in an embedded mode and is reinforced through the bolt, and a groove in the surface of the rod body is in interference fit with the fixed sleeve shaft.
Preferably, the multidirectional pushing arm is provided with a force arm, an auxiliary sliding shaft, a protective shell, a driving middle ring and a central spiral ring, wherein a transverse inner groove of the force arm is tightly attached to an outer sliding ring of the auxiliary sliding shaft, inner teeth of the force arm are meshed with outer teeth of the driving middle ring, the axis of the driving middle ring is superposed with the center of the central spiral ring and is electromagnetically connected with the central spiral ring, and the central spiral ring is movably connected with the driving screw.
Preferably, the protective middle plate is provided with a fixed panel, a movable blade, a limiting middle rod, a flow guiding bottom ring and a drainage tube, the fixed panel is fixed on two sides of the movable blade through bolts, the middle part of the movable blade is bonded with the limiting middle rod through glue, and the lower edge of the movable blade is nested with the flow guiding bottom ring.
Preferably, the force arm is provided with a support claw, a gear arm and a push wheel, the support claw is arranged on the right side of the gear arm through a movable bolt, the center of an inner groove in the left side of the gear arm is overlapped with the circle center of the push wheel, the support claw is buckled with a sliding groove in the lamp box, and the number of the gear arm is two.
Preferably, the lamp house is equipped with four, and the inside groove is equipped with the paster lamp plate, and waterproof baffle is equipped with on the surface, and forms the cuboid structure when closed.
Preferably, a magnetic separator is arranged at the joint of the driving middle coil and the central coil.
Preferably, the auxiliary sliding shaft is vertically fixed and is parallel to the driving screw.
Preferably, the supporting claw is u-shaped, and a ball is nested at the inner buckle.
Preferably, the supporting claw is of a metal structure, and a movable lug is arranged at the connecting position.
Advantageous effects
The invention discloses an intelligent urban street lamp, which has the following effects: the multi-directional push arm is connected with the lamp box, the driving middle ring in the multi-directional push arm is matched with the central spiral ring, the magnetic separator is closed to control the opening and closing of the lamp box, the movable blade and the magnetic separator form an umbrella-shaped structure to form a temporary rain shielding belt, urban residents can go out more conveniently, and dust on the surface of the lamp box is cleaner under the washing of rainwater.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of an intelligent city street lamp according to the present invention.
Fig. 2 is a schematic front view of the intelligent lamp sign of the present invention.
Fig. 3 is a schematic top view of the multi-directional pushing arm of the present invention.
Fig. 4 is a schematic view of an unfolded structure of the protective middle plate of the present invention.
Fig. 5 is a schematic sectional view of the moment arm of the present invention.
Fig. 6 is a schematic top view of the lamp box and the protective middle plate in a closed state.
Fig. 7 is a schematic top view of the light box and the protective middle plate in the unfolded state.
In the figure: the intelligent lamp comprises an intelligent lamp plate-1, a rod body-2, a lamp strip-3, a solar panel-4, a control box-5, a multidirectional push arm-11, a protective middle plate-12, a lamp box-13, a fixed sleeve shaft-14, a driving screw-15, a motor-16, a force arm-111, an auxiliary sliding shaft-112, a protective shell-113, a driving middle ring-114, a central spiral ring-115, a fixed panel-121, a movable leaf-122, a limiting middle rod-123, a flow guide bottom ring-124, a drainage tube-125, a support claw-1111, a tooth arm-1112 and a push wheel-1113.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1 to 7, the present invention provides an intelligent city street lamp, which comprises: the structure includes: intelligence lamp tablet 1, the body of rod 2, lamp strip 3, solar panel 4, control box 5, 1 vertical fixation of intelligence lamp tablet is on the outer edge of the body of rod 2, 2 upper ends of the body of rod are connected with lamp strip 3 through the horizontal pole, 3 inner circuit of lamp strip are connected with solar panel 4 through the wire, solar panel 4 installs at the top of control box 5, and connects through the electricity.
The multidirectional pushing arm 11 is provided with a force arm 111, an auxiliary sliding shaft 112, a protective shell 113, a driving middle ring 114 and a center spiral ring 115, a transverse inner groove of the force arm 111 is tightly attached to an outer sliding ring of the auxiliary sliding shaft 112, inner teeth of the force arm 111 are meshed with outer teeth of the driving middle ring 114, the axis of the driving middle ring 114 is superposed with the center of the center spiral ring 115, the center spiral ring 115 and the driving screw 15 are in electromagnetic connection, the double rods are unfolded towards two sides simultaneously, the lamp box 13 can be unfolded to the maximum angle when the double rods are unfolded, and the force arm 111 can be used as a support rod to enable the lamp box to be stably closed when the double rods are stored.
The middle protection plate 12 is provided with a fixed panel 121, a movable blade 122, a limiting middle rod 123, a flow guiding bottom ring 124 and a drainage tube 125, the fixed panel 121 is fixed on two sides of the movable blade 122 through bolts, the middle part of the movable blade 122 is bonded with the limiting middle rod 123 through glue, the lower edge of the movable blade 122 is nested with the flow guiding bottom ring 124, and the flow guiding ring at the bottom can avoid the condition of splashing caused by vertical dripping when rainwater is heavy.
Arm of force 111 is equipped with support claw 1111, tooth arm 1112, pushes away wheel 1113, support claw 1111 installs the right side at tooth arm 1112 through the activity bolt, tooth arm 1112 left side inside groove center coincides with the centre of a circle of pushing away wheel 1113, support claw 1111 and lamp house 13 in spout lock each other, tooth arm 1112 is equipped with two.
The magnetic separator is arranged at the joint of the driving middle ring 114 and the central spiral ring 115, the multi-directional push arm 11 moves towards the top when the magnetic separator is closed, and the central spiral ring 115 is meshed with the driving screw rod 15 when the magnetic separator is separated, so that the driving middle ring 114 rotates, and the force arm 1111 is unfolded towards two sides.
The auxiliary sliding shaft 112 is vertically fixed and parallel to the driving screw 15, so that the multi-directional pushing arm 11 is more stable when moving integrally.
The supporting claw 1111 is u-shaped, and balls are nested at the inner buckle, so that resistance is reduced during movement.
The supporting claw 1111 is of a metal structure, and a movable lug is arranged at the joint.
When in use: the intelligent lamp board 1 is installed on the outer edge of the rod body 2, and the lamp strip 3 is used for lighting, utilizes solar panel 4 to carry out the energy storage simultaneously in daytime, reduces the power supply pressure of electric wire netting, and the operating condition of lamp house 13 can long-rangely be controlled to the main control platform of 5 connections of control box.
In rainy days, an electric signal can be sent through the main control console, the motor 16 drives the driving screw 15 to rotate, the driving middle ring 114 inside the multidirectional pushing arm 11 is matched with the central spiral ring 115, when the magnetic separator is closed, the internal thread of the multidirectional pushing arm 11 is matched with the driving screw 15 to move towards the top, the central spiral ring 115 is meshed with the driving screw 15 when the magnetic separator is separated, the driving middle ring 114 rotates, the tooth arms 1112 of the force arm 1111 are unfolded towards two sides, the support claws 1111 are buckled to unfold the two sides of the inner sliding shaft of the lamp box 13, and at the moment, the whole lamp box 13 is unfolded outwards around the fixed sleeve shaft 14 (fig. 7).
The movable leaf 122 at middle part expandes equally when lamp house 13 is shared out, form umbrella-shaped structure, take up interim rain area of hiding for the urban resident, movable leaf 122 is followed each other nestedly with water conservancy diversion foundation ring 124 down, the water conservancy diversion circle of bottom can avoid the rainwater to drip perpendicularly when great and cause the condition of splash, make the usage of street lamp more diversified, the urban resident trip is more convenient, and can cooperate with total control platform, open the rain area of hiding through the mode of sweeping the sign indicating number attention, not only can carry out the drainage, can reduce the waste of the energy simultaneously.
The foregoing merely illustrates the principles and preferred embodiments of the invention and many variations and modifications may be made by those skilled in the art in light of the foregoing disclosure, which are intended to be within the scope of the invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. An intelligent city street lamp, its structure includes: intelligence lamp tablet (1), the body of rod (2), lamp strip (3), solar panel (4), control box (5), its characterized in that:
intelligence lamp tablet (1) vertical fixation is on the outer edge of the body of rod (2), the body of rod (2) upper end is connected with lamp strip (3) through the horizontal pole, lamp strip (3) internal circuit is connected with solar panel (4) through the wire, solar panel (4) are installed at the top of control box (5), and are connected through the electricity.
2. The intelligent city street lamp as claimed in claim 1, wherein: intelligence lamp tablet (1) comprises multidirectional arm (11), protection medium plate (12), lamp house (13), fixed sleeve axle (14), driving screw (15), motor (16) of pushing away, multidirectional arm (11) of pushing away is installed at the middle part of lamp house (13), protection medium plate (12) pass through the bolt fastening at the side of lamp house (13), multidirectional arm (11) of pushing away is through driving screw (15) and motor (16) mechanical connection of bottom, motor (16) casing is nested to be fixed at the inner chamber of the body of rod (2), and reinforces through the bolt, body of rod (2) surface recess and fixed sleeve axle (14) interference fit.
3. The intelligent city street lamp as claimed in claim 2, wherein: the multidirectional pushing arm (11) is provided with a force arm (111), an auxiliary sliding shaft (112), a protective shell (113), a driving middle ring (114) and a central spiral ring (115), a transverse inner groove of the force arm (111) is tightly attached to an outer sliding ring of the auxiliary sliding shaft (112), inner teeth of the force arm (111) are meshed with outer teeth of the driving middle ring (114), the axis of the driving middle ring (114) is overlapped with the center of the central spiral ring (115) and the center of the central spiral ring (115) is in electromagnetic connection, and the central spiral ring (115) is movably connected with a driving screw (15).
4. The intelligent city street lamp as claimed in claim 2, wherein: the protective middle plate (12) is provided with a fixed panel (121), movable blades (122), a limiting middle rod (123), a flow guide bottom ring (124) and a drainage tube (125), the fixed panel (121) is fixed on two sides of the movable blades (122) through bolts, the middle parts of the movable blades (122) are bonded with the limiting middle rod (123) through glue, and the lower edges of the movable blades (122) are mutually nested with the flow guide bottom ring (124).
5. The intelligent city street lamp as claimed in claim 3, wherein: arm of force (111) are equipped with support claw (1111), tooth arm (1112), push wheel (1113), support claw (1111) and install the right side at tooth arm (1112) through the activity bolt, tooth arm (1112) left side inside groove center coincides with the centre of a circle of push wheel (1113), support claw (1111) and lamp house (13) interior spout lock each other, tooth arm (1112) are equipped with two.
6. The intelligent city street lamp as claimed in claim 2, wherein: the lamp box (13) is provided with four, the inner groove is provided with a patch lamp panel, the surface of the patch lamp panel is provided with a waterproof partition board, and a cuboid structure is formed when the patch lamp panel is closed.
7. The intelligent city street lamp as claimed in claim 3, wherein: a magnetic separator is arranged at the joint of the driving middle ring (114) and the central spiral ring (115).
8. The intelligent city street lamp as claimed in claim 3, wherein: the auxiliary sliding shaft (112) is vertically fixed and is parallel to the driving screw rod (15).
9. The intelligent city street lamp as claimed in claim 5, wherein: the supporting claw (1111) is u-shaped, and a ball is nested at the inner buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058541.1A CN112212273B (en) | 2020-09-30 | 2020-09-30 | Intelligent city street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058541.1A CN112212273B (en) | 2020-09-30 | 2020-09-30 | Intelligent city street lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112212273A true CN112212273A (en) | 2021-01-12 |
| CN112212273B CN112212273B (en) | 2022-08-16 |
Family
ID=74050944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011058541.1A Active CN112212273B (en) | 2020-09-30 | 2020-09-30 | Intelligent city street lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112212273B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782761A (en) * | 2016-04-27 | 2016-07-20 | 付淑珍 | LED lamp with adjustable illumination range |
| CN208025379U (en) * | 2018-03-27 | 2018-10-30 | 福建双禾建设有限公司 | A kind of Multifunctional garden Landscape Lamp |
| CN209762791U (en) * | 2018-03-29 | 2019-12-10 | 烟台毓璜顶医院 | Rotatory desk lamp of otolaryngology |
| CN210462821U (en) * | 2019-09-18 | 2020-05-05 | 江西纳财科技有限公司 | Intelligent street lamp with automatic switch function |
| CN211502546U (en) * | 2020-04-14 | 2020-09-15 | 江苏瑞驰交通照明器材有限公司 | Outdoor lighting street lamp with sunshade rain-proof function |
-
2020
- 2020-09-30 CN CN202011058541.1A patent/CN112212273B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782761A (en) * | 2016-04-27 | 2016-07-20 | 付淑珍 | LED lamp with adjustable illumination range |
| CN208025379U (en) * | 2018-03-27 | 2018-10-30 | 福建双禾建设有限公司 | A kind of Multifunctional garden Landscape Lamp |
| CN209762791U (en) * | 2018-03-29 | 2019-12-10 | 烟台毓璜顶医院 | Rotatory desk lamp of otolaryngology |
| CN210462821U (en) * | 2019-09-18 | 2020-05-05 | 江西纳财科技有限公司 | Intelligent street lamp with automatic switch function |
| CN211502546U (en) * | 2020-04-14 | 2020-09-15 | 江苏瑞驰交通照明器材有限公司 | Outdoor lighting street lamp with sunshade rain-proof function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112212273B (en) | 2022-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108790896B (en) | Hidden new energy automobile charging device | |
| CN204530533U (en) | A kind of remote control telescopic road cone | |
| CN215570239U (en) | Street lamp with rain shielding function | |
| CN112212273B (en) | Intelligent city street lamp | |
| CN211475761U (en) | Snow-accumulation-preventing solar street lamp for urban illumination | |
| CN208253418U (en) | A kind of solar street light | |
| CN112172583A (en) | Fill electric pile panel protector at night based on 5G technique | |
| CN111762043A (en) | New energy vehicle fills electric pile fast with earth leakage protection function | |
| CN109944189A (en) | A kind of intelligent space lock | |
| KR101362447B1 (en) | Solar powered street lights having a wind power generator | |
| CN213837918U (en) | Electric vehicle charging shed with solar charging device | |
| CN212389097U (en) | Multifunctional cantilever parking stall shed lock | |
| CN110131648B (en) | Intelligent-adjustment solar lighting device | |
| CN207471407U (en) | A kind of solar street light with direction board | |
| CN208606076U (en) | A kind of street lamp convenient for protecting solar panels | |
| CN216480694U (en) | Municipal administration brightening engineering is with brightening lamp convenient to installation | |
| CN111637408A (en) | Wind-solar complementary intelligent street lamp | |
| CN212456626U (en) | Municipal administration is with synthesizing lamp pole | |
| CN213513643U (en) | Environment-friendly street lamp | |
| CN214038149U (en) | Multi-functional wisdom street lighting | |
| CN220541006U (en) | LED street lamp with guard shield | |
| CN208397951U (en) | A kind of street lamp being equipped with electronic information board | |
| CN220522153U (en) | Steel construction bicycle shed | |
| CN211969205U (en) | New energy automobile fills protection device of electric pile | |
| CN213831403U (en) | Rain-proof new forms of energy electric motor car fills electric pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20220802 Address after: 518000 workshop 701, No. 208, miaoxilao village, Guixiang community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Applicant after: SHENZHEN UNICORN LIGHTING CO.,LTD. Address before: 362200 intelligent industrial park of Quanzhou Development Zone, about 100 meters south of the intersection of Chonghong street and Futai Road, Jinjiang City, Quanzhou City, Fujian Province Applicant before: Guo Dongmei |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |