CN112032654A - Novel integrated low-light-level photoelectric street lamp with protection function - Google Patents

Novel integrated low-light-level photoelectric street lamp with protection function Download PDF

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Publication number
CN112032654A
CN112032654A CN202010948279.1A CN202010948279A CN112032654A CN 112032654 A CN112032654 A CN 112032654A CN 202010948279 A CN202010948279 A CN 202010948279A CN 112032654 A CN112032654 A CN 112032654A
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CN
China
Prior art keywords
lamp
micro
supporting
street lamp
long frame
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
CN202010948279.1A
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Chinese (zh)
Inventor
崔伟
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.)
Hefei Baoli New Energy Science And Technology Co ltd
Original Assignee
Hefei Baoli New Energy Science And Technology 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 Hefei Baoli New Energy Science And Technology Co ltd filed Critical Hefei Baoli New Energy Science And Technology Co ltd
Priority to CN202010948279.1A priority Critical patent/CN112032654A/en
Publication of CN112032654A publication Critical patent/CN112032654A/en
Pending legal-status Critical Current

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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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/005—Measures against vandalism, stealing or tampering
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • 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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Power Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention discloses a novel integrated micro-light photoelectric street lamp with a protection function, and relates to the technical field of lighting equipment. The invention comprises a base, a lamp post, a photovoltaic panel and a micro-light lamp, wherein the lamp post comprises a first supporting rod and a long frame; the lower part of the long frame is provided with a supporting block; a protection plate is arranged on the supporting block; the side of the first supporting rod is provided with a protective block. According to the invention, the support rod is rotatably connected with the lamp post, and when the lamp is in bad weather, the micro light lamp is collected into the long frame through the rotation of the rotating wheel, so that the micro light lamp is prevented from being damaged by smashing; the protective plate is arranged, and the protective plate is rotated above the photovoltaic panel in severe weather by controlling the rotation of the electric rotating rod, so that the photovoltaic panel is protected; the safety of the micro-light lamp is improved, and the service life of the micro-light lamp and the service life of the photovoltaic panel are prolonged.

Description

Novel integrated low-light-level photoelectric street lamp with protection function
Technical Field
The invention belongs to the technical field of lighting equipment, and particularly relates to a novel integrated low-light-level photoelectric street lamp with a protection function.
Background
Street lamp is the lighting system on road, street and public square. Lightening is usually initiated at night or darkness and is extinguished after dawn. The basic function of a street light is illumination, and its additional functions may be artwork, landmarks, signposts, kiosks, message boards, mailboxes, venues, advertising light boxes, etc.
The micro-street lamp is an independent distributed power supply system. The solar street lamp is not limited by regions, is not influenced by local electric installation, does not need to dig roads and lay wires and pipe burying construction, is convenient to construct and install on site, does not need a power transmission and transformation system and consume commercial power, is environment-friendly and energy-saving, has good comprehensive economic benefit, and is particularly convenient to add the solar street lamp on the built roads. The method is particularly applied to road lamps, outdoor advertising boards and bus stations far away from the power grid, has more obvious economic benefit and accords with the planning of urban development.
The lampshade and the photovoltaic panel of the existing low-light-level street lamp are basically not provided with a protective structure, rain, snow, hail and flying stones easily break the photovoltaic panel and the low-light lamp, and the lamp post is poor in safety when impacted by external force, so that social requirements are difficult to meet, and the novel integrated low-light-level photoelectric street lamp with the protective function is provided to solve the problems provided in the prior art.
Disclosure of Invention
The invention aims to provide a novel integrated low-light-level photoelectric street lamp with a protection function, which solves the problems that the existing low-light-level photoelectric street lamp is not provided with a protection structure, is easy to damage and has poor safety by arranging a base, a lamp post, a photovoltaic panel, a low-light lamp, a long frame, a rotating wheel and a protection plate.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a novel integrated low-light-level photoelectric street lamp with a protection function, which comprises a base, a lamp post, a photovoltaic panel and a low-light lamp; the base is fixedly connected with the lamp post; the light pole comprises a first support pole and an elongated frame; the upper end of the first support rod is fixedly connected with the lower surface of the long frame; a pair of fixed blocks are arranged on the inner side of the upper part of the long frame; a rotating wheel is arranged between the pair of fixed blocks; the rotating wheel is fixedly connected with the support rod; one end of the supporting rod is provided with a micro-light lamp; the top end of the long frame is provided with a first support column; side pillars are arranged on two sides of the first supporting pillar; the photovoltaic panel is fixedly connected with the first supporting column and the side supporting column; the photovoltaic panel is obliquely arranged; the inner side of the upper part of the long frame is provided with an electric rotating rod; the electric rotating rod is positioned above the fixed block; the inner side surface of the long frame is also provided with a second supporting column; the lower part of the long frame is provided with a supporting block; a protection plate is placed on the supporting block; short columns are arranged on two side surfaces of the protection plate; the short column is connected with the electric rotating rod through a first connecting column; the section of the first support rod is square; a protection block is arranged on the side surface of the first supporting rod; the inside of base is provided with first control button, second control button and battery.
Further, the width of the micro-light lamp is consistent with the width of the inner side of the long frame.
Further, the inclination angle of the photovoltaic panel is 30-45 degrees.
Further, the size of the protective plate is consistent with that of the photovoltaic plate; the protection plate is made of toughened glass or aluminum alloy.
Further, the protection block is fixedly connected with the first support rod through a spring; the protection block is made of rubber.
Further, a first motor is arranged on the rotating wheel; the electric rotating rod is provided with a second motor; the first control button is electrically connected with the first motor; the second control button is electrically connected with the second motor.
Further, a protective shell is arranged outside the storage battery.
The invention has the following beneficial effects:
1. aiming at the problem that the lampshade and the photovoltaic panel of the existing dim light street lamp basically do not have a protective structure and are easy to damage, the support rod is rotatably connected with the lamp post, and the dim light lamp is collected into the long frame through the rotation of the rotating wheel in severe weather so as to prevent the dim light lamp from being damaged; the protective plate is arranged, and the protective plate is rotated above the photovoltaic panel in severe weather by controlling the rotation of the electric rotating rod, so that the photovoltaic panel is protected; the safety of the micro-light lamp is improved, and the service life of the micro-light lamp and the service life of the photovoltaic panel are prolonged.
2. Aiming at the problem that the existing lamp post is not provided with a protection structure and is easy to knock down, the protection block is arranged, so that the lamp post is not easy to damage when being knocked down.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a novel integrated micro-optic and optoelectronic street lamp with a protection function according to the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
fig. 4 is a schematic structural view of the position relationship between the rotating wheel and the electric rotating rod of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-base, 2-first supporting rod, 3-long frame, 4-photovoltaic panel, 5-micro light lamp, 6-supporting rod, 7-electric rotating rod, 8-first connecting column, 9-protective plate, 10-second supporting rod, 11-protective block, 12-supporting block, 13-spring, 14-short column, 15-fixed block, 16-rotating wheel, 17-first supporting column and 18-side supporting column.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "top", "both sides", "inner", etc., indicate orientations or positional relationships and are used merely to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-4, the invention relates to a novel integrated low-light-level photoelectric street lamp with a protection function, which comprises a base 1, a lamp post, a photovoltaic panel 4 and a low-light lamp 5; the base 1 is fixedly connected with a lamp post; the lamp post comprises a first support rod 2 and an elongated frame 3; the upper end of the first support rod 2 is fixedly connected with the lower surface of the long frame 3; a pair of fixing blocks 15 are arranged on the inner side of the upper part of the long frame 3; a rotating wheel 16 is arranged between the pair of fixed blocks 15; the rotating wheel 16 is fixedly connected with the support rod 6; the rotating wheel 16 is provided with a first motor; the electric rotating rod 7 is provided with a second motor; the first control button is electrically connected with the first motor; the second control button is electrically connected with the second motor; one end of the supporting rod 6 is provided with a micro-light lamp 5; the width of the micro-light lamp 5 is consistent with the width of the inner side of the long frame 3; the top end of the long frame 3 is provided with a first supporting column 17; side pillars 18 are arranged on both sides of the first supporting pillar 17; the photovoltaic panel 4 is fixedly connected with the first supporting column 17 and the side supporting column 18; the photovoltaic panel 4 is obliquely arranged; the inclination angle of the photovoltaic panel 4 is 30-45 degrees; the inner side of the upper part of the long frame 3 is provided with an electric rotating rod 7; the electric rotating rod 7 is positioned above the fixed block 15; a second supporting column 10 is also arranged on the inner side surface of the long frame 3; the lower part of the long frame 3 is provided with a supporting block 12; the protection plate 9 is arranged on the supporting block 12; the size of the protection plate 9 is consistent with that of the photovoltaic plate 4; the protection plate 9 is made of toughened glass or aluminum alloy; short columns 14 are arranged on two side surfaces of the protection plate 9; the short column 14 is connected with the electric rotating rod 7 through a first connecting column 8; the section of the first supporting rod 2 is square; the side surface of the first supporting rod 2 is provided with a protective block 11; the protection block 11 is fixedly connected with the first support rod 2 through a spring 13; the protection block 11 is made of rubber; a first control button, a second control button and a storage battery are arranged inside the base 1; the outside of battery still is provided with the protective housing.
One specific application of this embodiment is:
when the user encounters hail weather, the first control button is pressed, the rotating wheel 16 rotates clockwise, the support rod 6 rotates along with the first control button until the support rod is in a vertical state, and the micro-light lamp 5 is slowly stored in the long frame 3; pressing down second control button, electronic bull stick 7 clockwise rotation, first connecting post 8 rotates thereupon, when guard plate 9 just in time is located photovoltaic board 4 top, electronic bull stick 7 stall to 9 fine with photovoltaic board 4 protection of guard plate.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. A novel integrated micro-light photoelectric street lamp with a protection function comprises a base (1), a lamp post, a photovoltaic panel (4) and a micro-light lamp (5);
the method is characterized in that:
the base (1) is fixedly connected with a lamp post; the lamp post comprises a first support rod (2) and an elongated frame (3); the upper end of the first supporting rod (2) is fixedly connected with the lower surface of the long frame (3); a pair of fixed blocks (15) are arranged on the inner side of the upper part of the long frame (3); a rotating wheel (16) is arranged between the pair of fixed blocks (15); the rotating wheel (16) is fixedly connected with the support rod (6); one end of the supporting rod (6) is provided with a micro light lamp (5); the top end of the long frame (3) is provided with a first supporting column (17); side pillars (18) are arranged on two sides of the first supporting pillar (17); the photovoltaic panel (4) is fixedly connected with the first supporting column (17) and the side supporting column (18); the photovoltaic panel (4) is obliquely arranged; an electric rotating rod (7) is arranged on the inner side of the upper part of the long frame (3); the electric rotating rod (7) is positioned above the fixed block (15); a second supporting column (10) is further arranged on the inner side surface of the long frame (3); the lower part of the long frame (3) is provided with a supporting block (12); a protection plate (9) is arranged on the supporting block (12); short columns (14) are arranged on two side surfaces of the protection plate (9); the short column (14) is connected with the electric rotating rod (7) through a first connecting column (8); the cross section of the first supporting rod (2) is square; a protective block (11) is arranged on the side surface of the first supporting rod (2); the portable intelligent control device is characterized in that a first control button, a second control button and a storage battery are arranged in the base (1).
2. The integrated micro-opto-electronic street lamp with protection function as claimed in claim 1, wherein the width of the micro-opto-electronic lamp (5) is consistent with the width of the inner side of the elongated frame (3).
3. The integrated micro-opto-electronic street lamp with protection function as claimed in claim 1 or 2, wherein the inclination angle of the photovoltaic panel (4) is 30 ° to 45 °.
4. The novel integrated micro-optic and electro-optical street lamp with protection function according to claim 3, characterized in that the protection plate (9) has a size corresponding to the size of the photovoltaic plate (4); the protection plate (9) is made of toughened glass or aluminum alloy.
5. The novel integrated micro-opto-electronic street lamp with protection function as claimed in claim 1, 2 or 4, wherein the protection block (11) is fixedly connected with the first support rod (2) through a spring (13); the protection block (11) is made of rubber.
6. The novel integrated micro-optic and electro-optical street lamp with protection function as claimed in claim 5, wherein the rotating wheel (16) is provided with a first motor; a second motor is arranged on the electric rotating rod (7); the first control button is electrically connected with the first motor; the second control button is electrically connected with the second motor.
7. The novel integrated micro-opto-electronic street lamp with protection function according to claim 1, 2, 4 or 6, characterized in that a protective casing is further provided outside the storage battery.
CN202010948279.1A 2020-09-10 2020-09-10 Novel integrated low-light-level photoelectric street lamp with protection function Pending CN112032654A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010948279.1A CN112032654A (en) 2020-09-10 2020-09-10 Novel integrated low-light-level photoelectric street lamp with protection function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010948279.1A CN112032654A (en) 2020-09-10 2020-09-10 Novel integrated low-light-level photoelectric street lamp with protection function

Publications (1)

Publication Number Publication Date
CN112032654A true CN112032654A (en) 2020-12-04

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ID=73584660

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010948279.1A Pending CN112032654A (en) 2020-09-10 2020-09-10 Novel integrated low-light-level photoelectric street lamp with protection function

Country Status (1)

Country Link
CN (1) CN112032654A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205424707U (en) * 2015-10-15 2016-08-03 星慧照明工程集团有限公司 Removable formula anticollision street lamp
CN207213899U (en) * 2017-08-01 2018-04-10 江苏明钰新能源有限公司 A kind of solar street light with intelligent protection device
CN209744252U (en) * 2019-04-22 2019-12-06 江苏弘耀照明集团有限公司 street lamp capable of telescopic protection
CN210740213U (en) * 2019-10-15 2020-06-12 韶关学院 Energy-conserving street lamp of thing networking

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205424707U (en) * 2015-10-15 2016-08-03 星慧照明工程集团有限公司 Removable formula anticollision street lamp
CN207213899U (en) * 2017-08-01 2018-04-10 江苏明钰新能源有限公司 A kind of solar street light with intelligent protection device
CN209744252U (en) * 2019-04-22 2019-12-06 江苏弘耀照明集团有限公司 street lamp capable of telescopic protection
CN210740213U (en) * 2019-10-15 2020-06-12 韶关学院 Energy-conserving street lamp of thing networking

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Application publication date: 20201204

RJ01 Rejection of invention patent application after publication