CN111120941A - LED street lamp for garden lighting - Google Patents

LED street lamp for garden lighting Download PDF

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Publication number
CN111120941A
CN111120941A CN201811273290.1A CN201811273290A CN111120941A CN 111120941 A CN111120941 A CN 111120941A CN 201811273290 A CN201811273290 A CN 201811273290A CN 111120941 A CN111120941 A CN 111120941A
Authority
CN
China
Prior art keywords
fixedly connected
rod
street lamp
led street
main rod
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.)
Pending
Application number
CN201811273290.1A
Other languages
Chinese (zh)
Inventor
陈庭林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yangzhou Gely Solar Lighting Group Co ltd
Original Assignee
Yangzhou Gely Solar Lighting Group Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yangzhou Gely Solar Lighting Group Co ltd filed Critical Yangzhou Gely Solar Lighting Group Co ltd
Priority to CN201811273290.1A priority Critical patent/CN111120941A/en
Publication of CN111120941A publication Critical patent/CN111120941A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/08Lighting devices intended for fixed installation with a standard
    • F21S8/085Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/36Hoisting or lowering devices, e.g. for maintenance
    • F21V21/38Hoisting or lowering devices, e.g. for maintenance with a cable
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10Outdoor lighting
    • F21W2131/103Outdoor lighting of streets or roads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention relates to the technical field of lighting equipment and discloses an LED street lamp for garden lighting, which comprises a main rod, wherein a side box is fixedly installed at the bottom end of the left side surface of the main rod, a base is fixedly installed at the bottom end of the main rod, a fixing plate is fixedly installed at the bottom end of an inner cavity of the main rod, guide rods are fixedly installed at two ends of the top of the fixing plate, and the other ends of the two guide rods are fixedly connected with the top of the inner cavity of the main rod. This LED street lamp for garden lighting, rotate the wheel through anticlockwise rotation, make a connecting wire circle on the cover wheel drop, the leading wheel plays the effect of lever fulcrum simultaneously, utilize the gravity of lamp shade self, thereby make the sliding plate lapse on the guide bar, make the lamp shade fall subaerially, thereby avoided the maintainer to climb the top of mobile jib and maintain lamp shade and circuit board etc. inside the lamp shade, the danger of maintenance process has been reduced, the maintenance that has guaranteed that the maintainer can be safe.

Description

LED street lamp for garden lighting
Technical Field
The invention relates to the technical field of lighting equipment, in particular to an LED street lamp for garden lighting.
Background
Gardens are in certain region application engineering technique and artistic means, and through reforming transform the topography, plant trees flowers and plants, build the beautiful natural environment and the recreation territory that form of building and arranging ways such as garden way creation, as the important place that people had a rest and played, the illumination supply of inside is indispensable.
At present, the illumination equipment commonly used in gardens is an LED street lamp, and the LED street lamp is popular due to the advantages of energy conservation, environmental protection and the like, the LED street lamp in the gardens is high in possibility of being damaged by people, and the street lamp cannot be normally illuminated due to natural damage in the using process, however, the LED street lamp is maintained by climbing to the top of the street lamp through a ladder by maintenance personnel after being damaged by the existing LED, however, the maintenance mode is very dangerous for the maintenance personnel, and the life safety can be influenced by carelessness; in addition, current bulb is located the inside of lamp shade, and lamp shade formula as an organic whole, dismantles very trouble, seriously influences the efficiency of maintenance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the LED street lamp for garden lighting, which has the advantages of safe maintenance process and convenient maintenance of the street lamp, and solves the problem that the existing LED is maintained by climbing to the top of the street lamp through a ladder by maintenance personnel after being damaged, however, the maintenance mode is very dangerous for the maintenance personnel, and the life safety is influenced by carelessness; in addition, current bulb is located the inside of lamp shade, and lamp shade formula as an organic whole, dismantles very trouble, seriously influences the problem of maintenance efficiency.
The invention provides the following technical scheme: a LED street lamp for garden lighting comprises a main rod, wherein a side box is fixedly mounted at the bottom of the left side surface of the main rod, a base is fixedly mounted at the bottom of the main rod, a fixed plate is fixedly mounted at the bottom of an inner cavity of the main rod, guide rods are fixedly mounted at two ends of the top of the fixed plate, the other ends of the two guide rods are fixedly connected with the top of the inner cavity of the main rod, a push rod positioned between the two guide rods is fixedly mounted at the top of the inner cavity of the main rod, a guide wheel is movably sleeved at the bottom of the push rod, a sliding plate positioned at the bottom of the guide wheel is movably sleeved between the two guide rods, a connecting block is fixedly mounted at the top of the sliding plate, a rotating shaft is movably sleeved at the left outer edge of the side box, a rotating wheel is fixedly connected at one end of the rotating shaft positioned outside the side box, the outer surface of the rotating shaft is movably sleeved with a sleeve wheel positioned inside the main rod and the side box, the outer surface of the sleeve wheel is wound with a connecting wire, the other end of the connecting wire sequentially penetrates through the fixed plate and the sliding plate and is in transmission connection with the connecting block through the guide wheel, the left side surface of the side box is fixedly provided with a fastening device, the bottom end of the fastening device is movably clamped with the rotating shaft, the right side surface of the connecting block is fixedly provided with a cross rod, the other end of the cross rod extends to the outside of the right side surface of the main rod and is fixedly connected with a lampshade, the inside of the lampshade is fixedly provided with an inner plate, the top and the bottom of the front surface of the inner plate are both provided with limiting holes, the front surface of the inner plate is movably connected with a protective cover, the middle parts of the top end and the bottom end of, the inner panel is positive the equal fixed mounting in the left and right sides has fixing device, two fixing device's the other end cup joints with two solid fixed ring activities respectively.
Preferably, fastener includes the dead lever, the quantity of dead lever is two, two the other end of dead lever all with side box fixed connection, two the equal activity of surface of dead lever has cup jointed the loop bar, two the equal fixedly connected with in bottom of loop bar accepts the pole, two the equal fixedly connected with grip ring in bottom of accept the pole, two the medial surface and the activity joint of axis of rotation of grip ring, two the threaded rod has been cup jointed in the activity between the bottom of grip ring, the surface screw thread of threaded rod has cup jointed the screw cap that is located a grip ring outside, two fixed mounting has the clamp spring who is located between loop bar and the grip ring between the accept the pole.
Preferably, fixing device includes the passive pole, the bottom and the inner panel fixed connection of passive pole, the spacing ball of top fixedly connected with of passive pole, the briquetting has been cup jointed in the surface activity of passive pole, the surface activity of passive pole has cup jointed power spring, power spring's both ends respectively with the top of inner panel and the bottom fixed connection of briquetting, the right side fixedly connected with connecting rod of briquetting, the other end fixedly connected with depression bar of connecting rod, the bottom and the solid fixed ring activity of depression bar are cup jointed.
Preferably, the middle part of the right side surface of the main rod is provided with a sliding groove matched with the diameter of the cross rod, and the outer edge of the sliding groove is fixedly provided with a rubber strip.
Preferably, the shape of the clamping ring is a semicircle matched with the rotating shaft, and the inner side surface of the clamping ring is rough.
Preferably, the connecting wire is a steel wire rope and is movably connected with the outer surface of the guide wheel.
Compared with the prior art, the invention has the following beneficial effects:
1. this LED street lamp for garden lighting, rotate the wheel through anticlockwise rotation, make a connecting wire circle on the cover wheel drop, the leading wheel plays the effect of lever fulcrum simultaneously, utilize the gravity of lamp shade self, thereby make the sliding plate lapse on the guide bar, make the lamp shade fall subaerially, thereby avoided the maintainer to climb the top of mobile jib and maintain lamp shade and circuit board etc. inside the lamp shade, the danger of maintenance process has been reduced, the maintenance that has guaranteed that the maintainer can be safe.
2. This LED street lamp for garden lighting through upwards pulling briquetting, makes the depression bar shift out from the retaining ring in, removes the fixed to the safety cover, has made things convenient for the staff to maintain the inside circuit of lamp shade and bulb to the practicality of this street lamp has been improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a bottom view of the bottom of the lampshade of the present invention construction;
FIG. 3 is a schematic view of the construction of the fastening device of the present invention;
FIG. 4 is a schematic structural view of a fixing device according to the present invention;
fig. 5 is a cut-away right view of the main stem of the present invention.
In the figure: 1. a main rod; 2. a side box; 3. a base; 4. a fixing plate; 5. a guide bar; 6. a top rod; 7. a guide wheel; 8. a sliding plate; 9. connecting blocks; 10. a rotating shaft; 11. a rotating wheel; 12. sleeving a wheel; 13. a connecting wire; 14. a fastening device; 141. fixing the rod; 142. a loop bar; 143. a bearing rod; 144. a clamp ring; 145. a clamping spring; 146. a threaded rod; 147. a threaded cap; 15. a cross bar; 16. a lamp shade; 17. an inner plate; 18. a limiting hole; 19. a limiting rod; 20. a fixing ring; 21. a fixing device; 211. a passive rod; 212. a limiting ball; 213. briquetting; 214. a power spring; 215. a connecting rod; 216. a pressure lever; 22. a protective cover.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-5, an LED street lamp for garden lighting comprises a main rod 1, a side box 2 is fixedly installed at the bottom end of the left side surface of the main rod 1, a sliding groove matched with the diameter of a cross rod 15 is formed in the middle of the right side surface of the main rod 1, a rubber strip is fixedly installed at the outer edge of the sliding groove, the rubber strip can not only ensure that the descending process of the cross rod 15 is more stable, but also cover the sliding groove, so that the side surface of the main rod 1 is more attractive, a base 3 is fixedly installed at the bottom end of the main rod 1, a fixed plate 4 is fixedly installed at the bottom end of the inner cavity of the main rod 1, guide rods 5 are fixedly installed at both ends of the top of the fixed plate 4, the other ends of the two guide rods 5 are fixedly connected with the top of the inner cavity of the main rod 1, a top rod 6 positioned between the two guide rods 5 is fixedly installed at the top of the inner cavity of, the top of the sliding plate 8 is fixedly provided with a connecting block 9, the outer edge of the left side of the side box 2 is movably sleeved with a rotating shaft 10, one end of the rotating shaft 10, which is positioned outside the side box 2, is fixedly connected with a rotating wheel 11, one end of the rotating shaft 10, which is positioned inside the side box 2, extends to the inside of the main rod 1 and is movably sleeved with the inner wall of the right side of the main rod 1, the outer surface of the rotating shaft 10 is movably sleeved with a sleeve wheel 12, which is positioned inside the main rod 1 and the side box 2, a lampshade 16 can be ensured to descend to the bottom of the main rod 1 by a connecting wire wound on the sleeve wheel 12, the outer surface of the sleeve wheel 12 is wound with a connecting wire 13, the connecting wire 13 is a steel wire rope and is movably connected with the outer surface of the guide wheel 7, the other end of the connecting wire 13 sequentially penetrates through the fixed, the number of the fixing rods 141 is two, the number of the two fixing rods 141 is two, the other ends of the two fixing rods 141 are fixedly connected with the side box 2, the outer surfaces of the two fixing rods 141 are movably sleeved with the loop bars 142, the bottom ends of the two loop bars 142 are fixedly connected with the bearing bars 143, the bottom ends of the two bearing bars 143 are fixedly connected with the clamping rings 144, the shape of the clamping rings 144 is a semicircle matched with the rotating shaft 10, the inner side surfaces of the clamping rings 144 are rough, the inner side surfaces of the two clamping rings 144 are movably clamped with the rotating shaft 10, the bottom ends of the two clamping rings 144 are movably sleeved with the threaded rods 146, the outer surface of the threaded rod 146 is in threaded sleeve connection with the threaded caps 147 located on the outer sides of the clamping rings 144, the clamping springs 145 located between the loop bars 142 and the clamping rings 144 are fixedly installed between the two bearing bars 143, and the two clamping rings 144 are, then, through the cooperation between the threaded rod 146 and the threaded cap 147, the two clamping rings 144 can fix the rotating shaft 10, the bottom end of the fastening device 14 is movably clamped with the rotating shaft 10, the right side surface of the connecting block 9 is fixedly provided with the cross rod 15, the other end of the cross rod 15 extends to the outside of the right side surface of the main rod 1 and is fixedly connected with the lampshade 16, the inside of the lampshade 16 is fixedly provided with the inner plate 17, the top and the bottom of the front surface of the inner plate 17 are both provided with the limiting holes 18, the front surface of the inner plate 17 is movably connected with the protective cover 22, the middle parts of the top end and the bottom end of the protective cover 22 are both fixedly connected with the limiting rods 19, the other end of the limiting rod 19 is movably sleeved with the limiting holes 18 and is inserted into the limiting holes 18 through the limiting rods 19, so that the protective cover 22 can be ensured to be clamped, fixing device 21 includes passive pole 211, the bottom and the inner panel 17 fixed connection of passive pole 211, the spacing ball 212 of top fixedly connected with of passive pole 211, briquetting 213 has been cup jointed in the surface activity of passive pole 211, power spring 214's both ends respectively with the top of inner panel 17 and the bottom fixed connection of briquetting 213, briquetting 213's right side fixedly connected with connecting rod 215, connecting rod 215's other end fixedly connected with depression bar 216, depression bar 216's bottom and solid fixed ring 20 activity are cup jointed, two fixing device 21's the other end cup joints with two solid fixed ring 20 activities respectively.
When the lamp shade is used, firstly, the threaded cap 147 is screwed reversely, the clamping ring 144 is pulled outwards, then the threaded rod 146 is taken off from the clamping ring 144, the fixing of the rotating shaft 10 is released, then the rotating wheel 11 is rotated anticlockwise, the sliding plate 8 drives the lamp shade 16 to slowly descend, then the pressing rod 216 is pulled outwards, the pressing rod is pulled out from the fixing ring 20, the fixing of the protection cover 22 is released, and then the lamp bulb and the circuit in the lamp shade 16 can be maintained; when the maintenance is completed, the rotating wheel 11 is rotated clockwise to raise the globe 16 to the top end of the main lever 1, and then the rotating shaft 10 is fixed by inserting the screw rod 146 into the holder ring 144 and then tightening the screw cap 147.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a LED street lamp for garden lighting, includes mobile jib (1), its characterized in that: the bottom fixed mounting of mobile jib (1) left surface has side box (2), the bottom fixed mounting of mobile jib (1) has base (3), the bottom fixed mounting of mobile jib (1) inner chamber has fixed plate (4), the equal fixed mounting in both ends at fixed plate (4) top has guide bar (5), two the other end of guide bar (5) all with the top fixed connection of mobile jib (1) inner chamber, the top fixed mounting of mobile jib (1) inner chamber has ejector pin (6) that is located between two guide bars (5), the bottom activity of ejector pin (6) has cup jointed leading wheel (7), two the activity has cup jointed sliding plate (8) that is located the bottom of leading wheel (7) between guide bar (5), the top fixed mounting of sliding plate (8) has connecting block (9), axis of rotation (10) has been cup jointed along the activity outside on side box (2) left, the rotating shaft (10) is fixedly connected with a rotating wheel (11) at one end outside the side box (2), one end of the rotating shaft (10) inside the side box (2) extends to the inside of the main rod (1) and is movably sleeved with the inner wall of the right side of the main rod (1), a sleeve wheel (12) inside the main rod (1) and the side box (2) is movably sleeved on the outer surface of the rotating shaft (10), a connecting wire (13) is wound on the outer surface of the sleeve wheel (12), the other end of the connecting wire (13) sequentially penetrates through the fixed plate (4) and the sliding plate (8) and is in transmission connection with the connecting block (9) through the guide wheel (7), a fastening device (14) is fixedly installed on the left side face of the side box (2), the bottom end of the fastening device (14) is movably clamped with the rotating shaft (10), and a transverse rod (15) is fixedly installed on the right side face, the other end of horizontal pole (15) extends to outside and fixedly connected with lamp shade (16) of mobile jib (1) right flank, the inside fixed mounting of lamp shade (16) has inner panel (17), spacing hole (18) have all been seted up to positive top and bottom of inner panel (17), the positive swing joint of inner panel (17) has safety cover (22), the equal fixedly connected with gag lever post (19) in middle part of safety cover (22) top and bottom, the other end of gag lever post (19) all cup joints with spacing hole (18) activity, the equal fixed mounting of the left and right sides face of safety cover (22) has solid fixed ring (20), the equal fixed mounting in the positive left and right sides of inner panel (17) has fixing device (21), two the other end of fixing device (21) cup joints with two solid fixed ring (20) activities respectively.
2. The LED street lamp for garden lighting according to claim 1, wherein: the fastening device (14) comprises two fixing rods (141), the number of the fixing rods (141) is two, the number of the two fixing rods (141) is two, the other ends of the two fixing rods (141) are fixedly connected with the side box (2), sleeve rods (142) are movably sleeved on the outer surfaces of the two fixing rods (141), and bearing rods (143) are fixedly connected to the bottom ends of the two sleeve rods (142), the bottom ends of the two bearing rods (143) are fixedly connected with clamping rings (144), the inner side surfaces of the two clamping rings (144) are movably clamped with the rotating shaft (10), a threaded rod (146) is movably sleeved between the bottom ends of the two clamping rings (144), the outer surface of the threaded rod (146) is sleeved with a threaded cap (147) positioned on the outer side of one clamping ring (144) in a threaded manner, and a clamping spring (145) positioned between the sleeve rod (142) and the clamping ring (144) is fixedly installed between the two bearing rods (143).
3. The LED street lamp for garden lighting according to claim 1, wherein: fixing device (21) are including passive pole (211), the bottom and inner panel (17) fixed connection of passive pole (211), the spacing ball of top fixedly connected with (212) of passive pole (211), briquetting (213) have been cup jointed in the surface activity of passive pole (211), power spring (214) have been cup jointed in the surface activity of passive pole (211), the both ends of power spring (214) respectively with the top of inner panel (17) and the bottom fixed connection of briquetting (213), the right flank fixedly connected with connecting rod (215) of briquetting (213), the other end fixedly connected with depression bar (216) of connecting rod (215), the bottom and the solid fixed ring (20) activity of depression bar (216) are cup jointed.
4. The LED street lamp for garden lighting according to claim 1, wherein: the middle part of the right side face of the main rod (1) is provided with a sliding groove matched with the diameter of the cross rod (15), and a rubber strip is fixedly arranged on the outer edge of the sliding groove.
5. The LED street lamp for garden lighting according to claim 2, wherein: the shape of the clamping ring (144) is a semicircle matched with the rotating shaft (10), and the inner side surface of the clamping ring (144) is rough.
6. The LED street lamp for garden lighting according to claim 1, wherein: the connecting wire (13) is a steel wire rope, and the connecting wire (13) is movably connected with the outer surface of the guide wheel (7).
CN201811273290.1A 2018-10-30 2018-10-30 LED street lamp for garden lighting Pending CN111120941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811273290.1A CN111120941A (en) 2018-10-30 2018-10-30 LED street lamp for garden lighting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811273290.1A CN111120941A (en) 2018-10-30 2018-10-30 LED street lamp for garden lighting

Publications (1)

Publication Number Publication Date
CN111120941A true CN111120941A (en) 2020-05-08

Family

ID=70484181

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811273290.1A Pending CN111120941A (en) 2018-10-30 2018-10-30 LED street lamp for garden lighting

Country Status (1)

Country Link
CN (1) CN111120941A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114754334A (en) * 2022-05-10 2022-07-15 江苏嘉亿照明科技有限公司 Street lamp convenient for fault maintenance and use method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114754334A (en) * 2022-05-10 2022-07-15 江苏嘉亿照明科技有限公司 Street lamp convenient for fault maintenance and use method thereof

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Application publication date: 20200508