CN114543034A - Street lamp for road - Google Patents
Street lamp for road Download PDFInfo
- Publication number
- CN114543034A CN114543034A CN202210207289.9A CN202210207289A CN114543034A CN 114543034 A CN114543034 A CN 114543034A CN 202210207289 A CN202210207289 A CN 202210207289A CN 114543034 A CN114543034 A CN 114543034A
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- China
- Prior art keywords
- fixedly connected
- lamp
- plate
- mounting
- street lamp
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
- F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
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- 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
- F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
- F21V1/10—Rotating shades
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- 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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
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- 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
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
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- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides a street lamp for a road, which comprises a lamp post, wherein sliding grooves are respectively formed in two sides of the lamp post, a moving groove is formed in the middle of the lamp post, a fixing plate is fixedly connected to the bottom end of the moving groove, a threaded rod is movably sleeved in the middle of the top end of the fixing plate, a sliding block is sleeved in the outer side of the threaded rod in a threaded manner, first connecting posts penetrating through the sliding grooves are respectively and fixedly connected to two sides of the sliding block, a mounting plate is fixedly connected to one side of each of the two first connecting posts, which is opposite to each other, a mounting groove is formed in the middle of the mounting plate, a forward and reverse motor is fixedly mounted in the middle of the mounting groove, and a rotating shaft is fixedly connected to the output end of the forward and reverse motor. According to the street lamp, the action plate and the reflector plate are arranged, so that a light source of the street lamp can be concentrated, the street lamp is brighter when in use, and the action plate can conveniently rotate along with the direction of sunlight by arranging the high-sensitivity photoelectric sensor, the low-sensitivity photoelectric sensor and the convex lens, so that the street lamp is protected from being exposed to the sunlight.
Description
Technical Field
The invention belongs to the technical field of street lamps, and particularly relates to a street lamp for a road.
Background
The street lamp is a lamp providing a lighting function for a road, is a lamp within a road surface lighting range in traffic lighting, is widely applied to various places needing lighting, but when the existing street lamp in the market is used, due to the dispersion of light sources, the street lamp is not bright enough, and bulbs are easily damaged when being exposed to the sun for a long time.
Therefore, it is necessary to design a street lamp for road to solve the above technical problems.
Disclosure of Invention
In order to solve the problems, the invention provides a street lamp for a road, which comprises a lamp post, wherein sliding grooves are respectively formed on two sides of the lamp post, a moving groove is formed in the middle of the lamp post, a fixed plate is fixedly connected to the bottom end of the moving groove, a threaded rod is movably sleeved in the middle of the top end of the fixed plate, a sliding block is sleeved on the outer side of the threaded rod in a threaded manner, first connecting posts penetrating through the sliding grooves are respectively and fixedly connected to two sides of the sliding block, a mounting plate is fixedly connected to one side of the two first connecting posts opposite to each other, a mounting groove is formed in the middle of the mounting plate, a forward and reverse motor is fixedly mounted in the middle of the mounting groove, a rotating shaft is fixedly connected to the output end of the forward and reverse motor, a connecting shaft is fixedly connected to one side of the rotating shaft, a second connecting post is fixedly connected to one side of the connecting shaft opposite to the rotating shaft, and a working groove is formed in the side of the bottom end of the mounting plate, the bottom of second spliced pole passes work groove fixedly connected with and acts on the board, the middle part fixed mounting that acts on the board and deviates from lamp pole one side has convex lens, the middle part of acting the board has been seted up and has been shone the chamber, the middle part fixed mounting who shines the chamber has low sensitive photoelectric sensor, the equal fixed mounting in both sides of shining the chamber has high sensitive photoelectric sensor, the middle part that acts on the board and is close to lamp pole one side is equipped with the reflector panel.
Further, the middle part fixedly connected with third spliced pole of mounting panel bottom, the bottom fixed mounting of third spliced pole has the light.
Furthermore, the bottom end of the threaded rod penetrates through the fixed plate and is fixed with a driven wheel, the driven wheel is meshed with a driving wheel, one side of the driving wheel is fixedly connected with a rotating shaft, and the rotating shaft penetrates through the lamp post and is fixedly connected with a rocking handle.
Furthermore, a fixed seat is sleeved at the joint of the lamp post and the rotating shaft, and an anti-skid pad is sleeved in the middle of the rocking handle.
Further, the middle part fixedly connected with base of lamp pole bottom, the installation cavity has been seted up at the middle part of base, the middle part fixed mounting of installation cavity has the timer, the middle part fixed mounting of sliding block has the controller, high sensitive photoelectric sensor, low sensitive photoelectric sensor, positive and negative motor and timer all with controller electric connection.
Further, the top fixedly connected with limiting plate of threaded rod, the top and the lamp pole fixed connection of limiting plate.
Furthermore, both ends of the acting plate, which are far away from one side of the lamp post, are fixedly connected with heat insulation plates.
According to the street lamp for the road, the action plate and the reflecting plate are arranged, so that the light source of the illuminating lamp can be concentrated, the street lamp is brighter when in use, and the action plate can conveniently rotate along with the direction of sunlight by arranging the high-sensitivity photoelectric sensor, the low-sensitivity photoelectric sensor and the convex lens, so that the illuminating lamp is protected from being exposed to the sunlight.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the structure of the mounting groove of the present invention.
Fig. 3 is a schematic structural view of the working tank of the present invention.
Fig. 4 is a schematic structural diagram of the reflector of the present invention.
Fig. 5 is a schematic structural view of the sliding groove of the present invention.
In the figure: 1. a base; 2. a lamp post; 3. a first connecting column; 4. mounting grooves; 5. mounting a plate; 6. a positive and negative motor; 7. a rotating shaft; 8. a connecting shaft; 9. a second connecting column; 10. an action plate; 11. a convex lens; 12. a heat insulation plate; 13. irradiating the cavity; 14. a high-sensitivity photoelectric sensor; 15. a low-sensitivity photoelectric sensor; 16. a third connecting column; 17. a lighting lamp; 18. a working groove; 19. a mounting cavity; 20. a timer; 21. a driven wheel; 22. a driving wheel; 23. a rotating shaft; 24. a fixed seat; 25. a rocking handle; 26. a fixing plate; 27. a threaded rod; 28. a limiting plate; 29. a slider; 30. a controller; 31. a moving groove; 32. a sliding groove; 33. a reflector; 34. a non-slip mat.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a street lamp for a road, which aims at the problems and is shown in figures 1-5, and comprises a lamp post 2, wherein two sides of the lamp post 2 are respectively provided with a sliding groove 32, the middle part of the lamp post 2 is provided with a moving groove 31, the bottom end of the moving groove 31 is fixedly connected with a fixed plate 26, the middle part of the top end of the fixed plate 26 is movably sleeved with a threaded rod 27, the fixed plate 26 is convenient for connecting the threaded rod 27, the outer side of the threaded rod 27 is in threaded sleeve connection with a sliding block 29, the sliding block 29 moves up and down on the threaded rod 27, two sides of the sliding block 29 are respectively and fixedly connected with a first connecting post 3 penetrating through the sliding groove 32, one opposite side of each of the two first connecting posts 3 is fixedly connected with a mounting plate 5, the first connecting posts 3 are convenient for connecting the mounting plate 5, the middle part of the mounting plate 5 is provided with a mounting groove 4, the middle part of the mounting groove 4 is fixedly provided with a positive and negative motor 6, and the output end of the positive and negative motor 6 is fixedly connected with a rotating shaft 7, one side of a rotating shaft 7 is fixedly connected with a connecting shaft 8, one side of the connecting shaft 8, which is far away from the rotating shaft 7, is fixedly connected with a second connecting column 9, the side of the bottom end of a mounting plate 5 is provided with a working groove 18, the bottom end of the second connecting column 9 penetrates through the working groove 18 and is fixedly connected with an acting plate 10, a positive and negative motor 6 drives the connecting shaft 8 to rotate through the rotating shaft 7, the connecting shaft 8 drives the acting plate 10 to rotate through the second connecting column 9, the working groove 18 is beneficial to the rotation of the acting plate 10, two ends, which are far away from the lamp post 2, of the acting plate 10 are both fixedly connected with heat insulation plates 12, the heat insulation plates 12 are convenient to protect the illuminating lamp 17 from direct sunlight, the service life of the illuminating lamp 17 is prolonged, the middle part, which is far away from the lamp post 2, of the acting plate 10 is fixedly provided with a convex lens 11, the middle part of the acting plate 10 is provided with an illuminating cavity 13, and the middle part of the illuminating cavity 13 is fixedly provided with a low-sensitivity photoelectric sensor 15, high-sensitivity photoelectric sensors 14 are fixedly mounted on two sides of the irradiation cavity 13, when sunlight vertically irradiates the convex lens 11, a light source is converged on the low-sensitivity photoelectric sensor 15, and the low-sensitivity photoelectric sensor 15 outputs signals to indicate the incidence of the sunlight; when sunlight obliquely enters the convex lens 11, light is not converged on the low-sensitivity photoelectric sensor 15 any more, but a large light spot is generated on the high-sensitivity photoelectric sensor 14, at the moment, the high-sensitivity photoelectric sensor 14 outputs a signal, the controller 30 receives the signal and then controls the positive and negative motors 6 to rotate until the low-sensitivity photoelectric sensor 15 sends the signal again, the middle part of the acting plate 10, which is close to one side of the lamp post 2, is provided with a reflecting plate 33, the reflecting plate 33 is convenient for gathering a light source of the illuminating lamp 17, the middle part of the bottom end of the mounting plate 5 is fixedly connected with a third connecting post 16, the bottom end of the third connecting post 16 is fixedly provided with the illuminating lamp 17, and the illuminating lamp 17 is convenient for illumination.
Wherein, the bottom of threaded rod 27 passes fixed plate 26 and is fixed with from driving wheel 21, from driving wheel 21 meshing connection with action wheel 22, one side fixedly connected with pivot 23 of action wheel 22, pivot 23 passes 2 fixedly connected with rocking handle 25 of lamp pole, the junction cover of lamp pole 2 and pivot 23 is equipped with fixing base 24, the middle part cover of rocking handle 25 is equipped with slipmat 34, through rocking handle 25, rocking handle 25 drives pivot 23 and rotates, pivot 23 makes action wheel 22 and follow driving wheel 21 work, sliding block 29 reciprocates on threaded rod 27, convenient to use person overhauls reflector panel 33 and light 17, it is more convenient during the use.
Middle part fixedly connected with base 1 of 2 bottoms of lamp pole, installation cavity 19 has been seted up at base 1's middle part, the middle part fixed mounting of installation cavity 19 has timer 20, the middle part fixed mounting of sliding block 29 has controller 30, high sensitive photoelectric sensor 14, low sensitive photoelectric sensor 15, positive and negative motor 6 and timer 20 all with controller 30 electric connection, timer 20 is regularly, arrive at the specified time at night, when there is not the sunshine, timer 20 transfer signal, controller 30 control positive and negative motor 6 drives and acts on board 10 and rotates, rotate and stop when the starting position, be convenient for reflector panel 33 carries out the light source and concentrates.
The top fixedly connected with limiting plate 28 of threaded rod 27, the top and the lamp pole 2 fixed connection of limiting plate 28, limiting plate 28 prevent that sliding block 29 from breaking away from threaded rod 27, increase the security of device use.
The working principle is as follows: the two reflectors 33 are beneficial to concentrating the light sources of the two illuminating lamps 17, the illumination brightness is higher after the light sources are concentrated, the street lamp is more convenient to use, when the illuminating lamps 17 are directly exposed to sunlight in the daytime, the low-sensitivity photoelectric sensor 15, the convex lens 11 and the two high-sensitivity photoelectric sensors 14 work, namely when the sunlight vertically irradiates the convex lens 11, the light sources are converged on the low-sensitivity photoelectric sensor 15, and the low-sensitivity photoelectric sensor 15 outputs signals to indicate the incidence of the sunlight; when sunlight obliquely enters the convex lens 11, light is not converged on the low-sensitivity photoelectric sensor 15 any more, but a large light spot is generated on the high-sensitivity photoelectric sensor 14, at the moment, the high-sensitivity photoelectric sensor 14 outputs a signal, the controller 30 receives the signal and controls the forward and reverse motor 6 to rotate, the forward and reverse motor 6 drives the connecting shaft 8 to rotate through the rotating shaft 7, the connecting shaft 8 drives the action plate 10 to rotate through the second connecting column 9, the working groove 18 is beneficial to the rotation of the action plate 10, and the rotation is stopped until the low-sensitivity photoelectric sensor 15 sends out a signal again; when no sunlight exists at night and the time specified by the timer 20 is reached, the timer 20 transmits a signal, and the controller 30 controls the positive and negative motors 6 to drive the action plate 10 to rotate, and stops when the action plate rotates to the starting position, so that the light source concentration of the reflector 33 is facilitated.
When the lighting lamp 17 or the action plate 10 needs to be overhauled, the rocking handle 25 is rocked, the rocking handle 25 drives the rotating shaft 23 to rotate, the rotating shaft 23 enables the driving wheel 22 and the driven wheel 21 to work, the sliding block 29 moves downwards on the threaded rod 27, a user can conveniently overhaul the lighting lamp 17 and the reflecting plate 33, and the use is more convenient.
It is to be understood that the terms "upwardly," "downwardly," "leftward," "rightward," "vertical," "inwardly," and the like are used herein for purposes of description only. Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The street lamp for the road comprises a lamp post (2) and is characterized in that sliding grooves (32) are formed in two sides of the lamp post (2), a moving groove (31) is formed in the middle of the lamp post (2), a fixing plate (26) is fixedly connected to the bottom end of the moving groove (31), a threaded rod (27) is movably sleeved at the middle of the top end of the fixing plate (26), a sliding block (29) is sleeved at the outer side of the threaded rod (27) in a threaded manner, first connecting posts (3) penetrating through the sliding grooves (32) are fixedly connected to two sides of the sliding block (29), a mounting plate (5) is fixedly connected to one side, opposite to each other, of each first connecting post (3), a mounting groove (4) is formed in the middle of the mounting plate (5), a positive and negative motor (6) is fixedly mounted in the middle of the mounting groove (4), and a rotating shaft (7) is fixedly connected to the output end of the positive and negative motor (6), one side fixedly connected with connecting axle (8) of axis of rotation (7), one side fixedly connected with second spliced pole (9) that connecting axle (8) deviates from axis of rotation (7), work groove (18) have been seted up to the avris of mounting panel (5) bottom, work groove (18) fixedly connected with action board (10) are passed to the bottom of second spliced pole (9), the middle part fixed mounting that deviates from lamp pole (2) one side of action board (10) has convex lens (11), the middle part of action board (10) has been seted up and has been shone chamber (13), the middle part fixed mounting who shines chamber (13) has low sensitive photoelectric sensor (15), the equal fixed mounting in both sides that shines chamber (13) has high sensitive photoelectric sensor (14), the middle part that action board (10) is close to lamp pole (2) one side is equipped with reflector panel (33).
2. The street lamp as claimed in claim 1, wherein a third connecting column (16) is fixedly connected to the middle of the bottom end of the mounting plate (5), and an illuminating lamp (17) is fixedly mounted at the bottom end of the third connecting column (16).
3. The street lamp as claimed in claim 1, wherein the bottom end of the threaded rod (27) passes through the fixing plate (26) and is fixed with a driven wheel (21), the driven wheel (21) is engaged with a driving wheel (22), one side of the driving wheel (22) is fixedly connected with a rotating shaft (23), and the rotating shaft (23) passes through the lamp post (2) and is fixedly connected with a rocking handle (25).
4. The street lamp as claimed in claim 3, wherein the fixing seat (24) is sleeved at the joint of the lamp post (2) and the rotating shaft (23), and the anti-skid pad (34) is sleeved at the middle part of the rocking handle (25).
5. The street lamp as claimed in claim 1, wherein a base (1) is fixedly connected to the middle of the bottom end of the lamp post (2), a mounting cavity (19) is formed in the middle of the base (1), a timer (20) is fixedly mounted in the middle of the mounting cavity (19), a controller (30) is fixedly mounted in the middle of the sliding block (29), and the high-sensitivity photoelectric sensor (14), the low-sensitivity photoelectric sensor (15), the positive and negative motor (6) and the timer (20) are all electrically connected to the controller (30).
6. The street light as claimed in claim 1, characterized in that a limit plate (28) is fixedly connected to the top end of the threaded rod (27), and the top end of the limit plate (28) is fixedly connected to the lamp post (2).
7. A street light as claimed in claim 1, characterized in that the active plate (10) is fixedly connected at both ends thereof on the side facing away from the lamp post (2) with a heat insulating plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207289.9A CN114543034B (en) | 2022-03-04 | 2022-03-04 | Street lamp for road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207289.9A CN114543034B (en) | 2022-03-04 | 2022-03-04 | Street lamp for road |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114543034A true CN114543034A (en) | 2022-05-27 |
| CN114543034B CN114543034B (en) | 2023-09-29 |
Family
ID=81661960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210207289.9A Active CN114543034B (en) | 2022-03-04 | 2022-03-04 | Street lamp for road |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114543034B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799986A (en) * | 2018-05-09 | 2018-11-13 | 王俊 | A kind of energy conservation and environmental protection maintained easily street lamp along the river |
| CN211502589U (en) * | 2020-01-07 | 2020-09-15 | 河北利祥灯具制造有限公司 | Multifunctional solar street lamp |
| DE202020106090U1 (en) * | 2019-12-04 | 2020-11-09 | Suzhou Bijia Internet Technology Co., Ltd. | Smart city lighting device |
-
2022
- 2022-03-04 CN CN202210207289.9A patent/CN114543034B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799986A (en) * | 2018-05-09 | 2018-11-13 | 王俊 | A kind of energy conservation and environmental protection maintained easily street lamp along the river |
| DE202020106090U1 (en) * | 2019-12-04 | 2020-11-09 | Suzhou Bijia Internet Technology Co., Ltd. | Smart city lighting device |
| CN211502589U (en) * | 2020-01-07 | 2020-09-15 | 河北利祥灯具制造有限公司 | Multifunctional solar street lamp |
Non-Patent Citations (1)
| Title |
|---|
| 薛同莲;李雅丽;施建珍;: "光电式太阳跟踪系统的研究", 湘潭大学自然科学学报, no. 04 * |
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| Publication number | Publication date |
|---|---|
| CN114543034B (en) | 2023-09-29 |
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