CN104896407A - Solar LED street lamp device for lifting solar cell panel and use method of device - Google Patents

Solar LED street lamp device for lifting solar cell panel and use method of device Download PDF

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Publication number
CN104896407A
CN104896407A CN201510248065.2A CN201510248065A CN104896407A CN 104896407 A CN104896407 A CN 104896407A CN 201510248065 A CN201510248065 A CN 201510248065A CN 104896407 A CN104896407 A CN 104896407A
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CN
China
Prior art keywords
horizontal baffle
sprocket wheel
plate
solar panel
lifter plate
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Pending
Application number
CN201510248065.2A
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Chinese (zh)
Inventor
何一鸣
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Individual
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Individual
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Publication date
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Priority to CN201510248065.2A priority Critical patent/CN104896407A/en
Publication of CN104896407A publication Critical patent/CN104896407A/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
    • F21S9/00Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02Lighting 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
    • F21S9/03Lighting 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
    • F21S9/035Lighting 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
    • 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
    • F21V15/00Protecting lighting devices from damage
    • F21V15/01Housings, e.g. material or assembling of housing parts
    • 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
    • F21V17/02Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/72Energy 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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention relates to a solar LED street lamp device for a lifting solar cell panel and a use method of the device. The device comprises a column (1), a mounting case (3) of the solar cell panel and an LED lamp (2) fixedly connected with the mounting case (3). A front guide groove (35) and a rear guide groove (36) extending in the vertical direction are fixed in the right portions of a front plate (34) and a rear plate (35) of the mounting case (3) respectively. The mounting case (3) is divided into an upper case body and a lower case body (310) by a horizontal isolation plate (32) which connects the front plate (34) and the rear plate (35) fixedly. The upper case body is used for accommodating the solar cell panel, and the lower case body (310) is used for accommodating a drive unit.

Description

The solar LED street lamp device of liftable solar panel and using method thereof
Technical field
The application relates to the LED Solar Light field, is specially a kind of solar LED street lamp device of liftable solar panel.
Background technology
LED lamp has the advantage that power consumption is few, brightness is high in the process of illumination use.Out of doors in environment, such as, street lamp can be used as.And solar cell is owing to being subject to the impact of the factor such as weather and illumination, its output power is lower.Utilize LED lamp and solar panel to combine, the advantage of LED lamp can be made full use of thus make up the defect of the low aspect of solar cell power output plate.
But the plate face area of solar panel is comparatively large, and complex structure, is easy to the impact being subject to the climatic factor such as wind-force and sand and dust, under some extreme conditions, very easily damages.Which results in economic loss and affect road normal pass.
Summary of the invention
The object of the present invention is to provide a kind of solar LED street lamp device and using method thereof of liftable solar panel, it can overcome the above-mentioned defect of prior art.
According to the present invention, a kind of solar LED street lamp device of liftable solar panel, comprise vertical rod, the installation casing being fixed on the solar panel in vertical rod and the LED lamp be fixedly connected with described installation casing, the front side board of described installation casing and the right part of back side panel are fixedly installed the front guide slot of vertical direction extension and rear guide groove respectively, described installation casing is divided into upper box body and lower part box by the horizontal baffle described front side board and back side panel are fixed together, upper box body is for holding solar panel, lower part box is used for containing drive device, lifter plate for being elevated solar panel extends from described front guide slot in the horizontal direction to described rear guide groove, and be connected with described horizontal baffle by upper extension spring, upper end, described lifter plate center is provided with contiguous block, described contiguous block upper end is provided with the roller for promoting upper end cell panel installing rack, described solar panel is arranged in cell panel installing rack, described horizontal baffle left end is provided with back-up block, the described cell panel installing rack lower left corner is hinged on described back-up block, described front side board with back side panel is provided with respectively be symmetrically fixedly connected with the front end of described lifter plate and the front chain wheel assembly of rear end and rear sprocket assembly, described front chain wheel assembly and rear sprocket assembly include: upper left sprocket wheel, lower-left sprocket wheel and the upper right sprocket wheel symmetrically arranged, bottom right sprocket wheel, and left chain, right chain, article two, in described left chain, in the upper end of one and the front-end and back-end of described lifter plate, the left side of corresponding one is connected, after walking around upper left sprocket wheel and lower-left sprocket wheel, its lower end is connected to the left side of corresponding one in the front-end and back-end of location-plate, described location-plate to be positioned at below described horizontal baffle and to extend in the horizontal direction to described rear guide groove from described front guide slot, described location-plate is connected with described horizontal baffle by lower extension spring
Article two, in described right chain, in the upper end of one and the front-end and back-end of described lifter plate, the right side of corresponding one is connected, after walking around upper right sprocket wheel and bottom right sprocket wheel, its lower end is connected to the right side of corresponding one in the front-end and back-end of location-plate, all be connected by horizontal drive shaft between front chain wheel assembly and the described lower-left sprocket wheel of rear sprocket assembly and between the sprocket wheel of described bottom right, and two described horizontal drive shaft connects with left electric machine and right electric machine power respectively, described upper left sprocket wheel and the described upper right sprocket wheel of front chain wheel assembly and rear sprocket assembly are rotatably fixed on the corresponding person in described front side board and back side panel separately dividually, described front guide slot and rear guide groove all elastic telescopic locate tip in order to when the pulling force move under influence of described lifter plate extension spring on described is to locating described lifter plate close to during described horizontal baffle being positioned to be provided with above described horizontal baffle, and all be positioned to be provided with elastic telescopic below described horizontal baffle under locate tip in order to extremely to locate described location-plate close to during described horizontal baffle when the pulling force move under influence of described location-plate at described lower extension spring.
According to another aspect, as as described in a kind of using method of solar LED street lamp device of liftable solar panel, wherein, when described solar panel sinks in described upper box body by needs, left electric machine and right electric machine synchronous operation, described location-plate is pulled downwards and moves away from described horizontal baffle, and compress into locating tip under described elastic telescopic, now, described lifter plate pulls near described horizontal baffle motion downwards by described upper extension spring, and compress into described elastic telescopic being located tip thus the locking realizing subsidence position.
Wherein, when described solar panel rises by needs from described upper box body, left electric machine and right electric machine synchronous operation, described lifter plate is upwards pulled and moves away from described horizontal baffle, and compress into described elastic telescopic locates tip, now, described location-plate upwards pulls near described horizontal baffle motion by described lower extension spring, and compresses into locating tip under described elastic telescopic thus the locking realizing the lifting position of described solar panel.
By the present invention, owing to make use of chain sprocket assembly, solar panel can be carried out lift driving by it, thus under extreme weather conditions, solar panel can be sunk to and hold in casing thus avoid being damaged.And under normal weather condition, by the driving of motor and chain, solar panel can be risen to operating position.And, by coordinating of upper and lower elastic telescopic device and motor, lifter plate herein and location-plate automatically can be controlled in the cooperation moved up and down, avoid the complexity of drive mechanism and reduce costs.And utilize the flexible of location tip, can locate in time after determining a kind of state (propradation and sinking state), even if this can form a kind of stable state thus keep the in stable condition of its needs under motor outage situation.Directly be fixed on by minor axis on the corresponding person of front side board or back side panel by upper sprocket wheel, the major axis that lower sprocket is then extended by front and back is fixedly connected with, this can by front side board and back side panel fully fixing, and ensure the installation stable degree of drive sprocket.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of road lamp device of the present invention when solar panel is in sinking state, and wherein, in order to show conveniently, solar panel is presumed to transparent in the structure showing rear portion wittingly.
Fig. 2 is the schematic diagram of road lamp device when solar panel is in propradation in Fig. 1.
Fig. 3 is the schematic top plan view of Fig. 2.
Detailed description of the invention
The present invention is described in detail for index map 1-3 below.
According to embodiment, a kind of solar LED street lamp device of liftable solar panel, comprise vertical rod 1, the installation casing 3 being fixed on the solar panel in vertical rod 1 and the LED lamp 2 be fixedly connected with described installation casing 3, the front side board 34 of described installation casing 3 and the right part of back side panel 33 are fixedly installed front guide slot 35 and the rear guide groove 36 of vertical direction extension respectively, described installation casing 3 is divided into upper box body and lower part box 310 by the horizontal baffle 32 described front side board 34 and back side panel 33 are fixed together, upper box body is for holding solar panel, lower part box 310 is for containing drive device, lifter plate 41 for being elevated solar panel 4 extends from described front guide slot 35 in the horizontal direction to described rear guide groove 36, and be connected with described horizontal baffle 32 by upper extension spring 410, upper end, described lifter plate 41 center is provided with contiguous block 8, described contiguous block 8 upper end is provided with the roller 81 for promoting upper end cell panel installing rack 40, described solar panel 4 is arranged in cell panel installing rack 40, described horizontal baffle 32 left end is provided with back-up block 83, described cell panel installing rack 40 lower left corner is hinged on described back-up block 83, described front side board 34 with back side panel 33 is provided with respectively be symmetrically fixedly connected with the described front end of lifter plate 41 and the front chain wheel assembly of rear end and rear sprocket assembly, described front chain wheel assembly and rear sprocket assembly include: upper left sprocket wheel 351, 361, lower-left sprocket wheel 353 and the upper right sprocket wheel 352 symmetrically arranged, 362, bottom right sprocket wheel 354, and left chain 3512, 3612, right chain 3513, 3613, article two, in described left chain 3512,3612, in the upper end of one and the front-end and back-end of described lifter plate 41, the left side of corresponding one is connected, after walking around upper left sprocket wheel 351,361 and lower-left sprocket wheel 353, its lower end is connected to the left side of corresponding one in the front-end and back-end of location-plate 42, described location-plate 42 to be positioned at below described horizontal baffle 32 and to extend in the horizontal direction to described rear guide groove 36 from described front guide slot 35, described location-plate 42 is connected with described horizontal baffle 32 by lower extension spring 420
Article two, described right chain 3513, in 3613, in the upper end of one and the front-end and back-end of described lifter plate 41, the right side of corresponding one is connected, walk around upper right sprocket wheel 352, 362 and bottom right sprocket wheel 354 after its lower end be connected to the right side of corresponding one in the front-end and back-end of location-plate 42, all be connected by horizontal drive shaft 3534 between front chain wheel assembly and the described lower-left sprocket wheel 353 of rear sprocket assembly and between described bottom right sprocket wheel 354, and two described horizontal drive shaft 3534 connects with left electric machine 3500 and right electric machine 350 power respectively, the described upper left sprocket wheel 351 of front chain wheel assembly and rear sprocket assembly and described upper right sprocket wheel 352 are rotatably fixed on the corresponding person in described front side board 34 and back side panel 33 separately dividually, described front guide slot 35 and rear guide groove 36 all elastic telescopic locate tip 358 in order to when the pulling force move under influence of described lifter plate 41 extension spring 410 on described is to locating described lifter plate 41 close to during described horizontal baffle 32 being positioned to be provided with above described horizontal baffle 32, and all be positioned at be provided with elastic telescopic below described horizontal baffle 32 under locate tip 359 in order to extremely to locate described location-plate 42 close to during described horizontal baffle 32 when the pulling force move under influence of described location-plate 42 at described lower extension spring 420.
According to embodiment, wherein, described horizontal baffle 32 is provided with left through hole 320 and right through hole 321 passes through with for described left chain 3512,3612 and described right chain 3513,3613 respectively.
According to embodiment, as as described in a kind of using method of solar LED street lamp device of liftable solar panel, wherein, when described solar panel sinks in described upper box body by needs, left electric machine 3500 and right electric machine 350 synchronous operation, described location-plate 42 is pulled downwards and moves away from described horizontal baffle 32, and compress into locating tip 359 under described elastic telescopic, now, described lifter plate 41 pulls downwards and moves near described horizontal baffle 32 by described upper extension spring 410, and compress into described elastic telescopic being located tip 358 thus the locking realizing subsidence position.
Alternatively, wherein, when described solar panel rises by needs from described upper box body, left electric machine 3500 and right electric machine 350 synchronous operation, described lifter plate 41 is upwards pulled and moves away from described horizontal baffle 32, and compress into described elastic telescopic being located tip 358, now, described location-plate 41 upwards pulls and moves near described horizontal baffle 32 by described lower extension spring 420, and compresses into locating tip 359 under described elastic telescopic thus the locking realizing the lifting position of described solar panel.
By with upper type, those skilled in the art can make various change according to mode of operation within the scope of the invention.

Claims (4)

1. the solar LED street lamp device of a liftable solar panel, comprise vertical rod (1), the installation casing (3) being fixed on the solar panel in vertical rod (1) and the LED lamp (2) be fixedly connected with described installation casing (3), the front side board (34) of described installation casing (3) and the right part of back side panel (33) are fixedly installed front guide slot (35) and the rear guide groove (36) of vertical direction extension respectively, described installation casing (3) is divided into upper box body and lower part box (310) by the horizontal baffle (32) described front side board (34) and back side panel (33) are fixed together, upper box body is for holding solar panel, lower part box (310) is for containing drive device, lifter plate (41) for being elevated solar panel (4) extends from described front guide slot (35) in the horizontal direction to described rear guide groove (36), and be connected with described horizontal baffle (32) by upper extension spring (410), described lifter plate (41) upper end, center is provided with contiguous block (8), described contiguous block (8) upper end is provided with the roller (81) for promoting upper end cell panel installing rack (40), described solar panel (4) is arranged in cell panel installing rack (40), described horizontal baffle (32) left end is provided with back-up block (83), described cell panel installing rack (40) lower left corner is hinged on described back-up block (83), described front side board (34) with back side panel (33) is provided with respectively be symmetrically fixedly connected with the front end of described lifter plate (41) and the front chain wheel assembly of rear end and rear sprocket assembly, described front chain wheel assembly and rear sprocket assembly include: upper left sprocket wheel (351, 361), lower-left sprocket wheel (353) and the upper right sprocket wheel (352 symmetrically arranged, 362), bottom right sprocket wheel (354), and left chain (3512, 3612), right chain (3513, 3613), article two, described left chain (3512, 3612) in, in the upper end of one and the front-end and back-end of described lifter plate (41), the left side of corresponding one is connected, walk around upper left sprocket wheel (351, 361) and lower-left sprocket wheel (353) be connected to the left side of corresponding one in the front-end and back-end of location-plate (42) its lower end afterwards, described location-plate (42) is positioned at described horizontal baffle (32) below and extends in the horizontal direction to described rear guide groove (36) from described front guide slot (35), described location-plate (42) is connected with described horizontal baffle (32) by lower extension spring (420),
Article two, described right chain (3513, 3613) in, in the upper end of one and the front-end and back-end of described lifter plate (41), the right side of corresponding one is connected, walk around upper right sprocket wheel (352, 362) and bottom right sprocket wheel (354) be connected to the right side of corresponding one in the front-end and back-end of location-plate (42) its lower end afterwards, all be connected by horizontal drive shaft (3534) between front chain wheel assembly and described lower-left sprocket wheel (353) of rear sprocket assembly and between described bottom right sprocket wheel (354), and two described horizontal drive shaft (3534) connects with left electric machine (3500) and right electric machine (350) power respectively, described upper left sprocket wheel (351) of front chain wheel assembly and rear sprocket assembly and described upper right sprocket wheel (352) are rotatably fixed on the corresponding person in described front side board (34) and back side panel (33) separately dividually, described front guide slot (35) and rear guide groove (36) upper all be positioned at described horizontal baffle (32) top be provided with elastic telescopic locates tip (358) in order to when described lifter plate (41) extension spring (410) on described pulling force move under influence to close to time described horizontal baffle (32) to described lifter plate (41) location, and all be positioned at be provided with elastic telescopic below described horizontal baffle (32) under locate tip (359) in order to extremely to locate described location-plate (42) close to time described horizontal baffle (32) when the pulling force move under influence of described location-plate (42) described lower extension spring (420).
2. the solar LED street lamp device of a kind of liftable solar panel as claimed in claim 1, wherein, described horizontal baffle (32) is provided with left through hole (320) and right through hole (321) passes through with for described left chain (3512,3612) and described right chain (3513,3613) respectively.
3. the using method of the solar LED street lamp device of a kind of liftable solar panel as claimed in claim 1 or 2, wherein, when described solar panel sinks in described upper box body by needs, left electric machine (3500) and right electric machine (350) synchronous operation, described location-plate (42) is pulled downwards and moves away from described horizontal baffle (32), and compress into locating tip (359) under described elastic telescopic, now, described lifter plate (41) pulls near described horizontal baffle (32) motion downwards by described upper extension spring (410), and compress into described elastic telescopic being located tip (358) thus realize the locking of subsidence position.
4. the using method of the solar LED street lamp device of a kind of liftable solar panel as claimed in claim 1 or 2, wherein, when described solar panel rises by needs from described upper box body, left electric machine (3500) and right electric machine (350) synchronous operation, described lifter plate (41) is upwards pulled and moves away from described horizontal baffle (32), and compress into described elastic telescopic being located tip (358), now, described location-plate (41) upwards pulls near described horizontal baffle (32) motion by described lower extension spring (420), and compress into locating tip (359) under described elastic telescopic thus realize the locking of the lifting position of described solar panel.
CN201510248065.2A 2015-05-15 2015-05-15 Solar LED street lamp device for lifting solar cell panel and use method of device Pending CN104896407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510248065.2A CN104896407A (en) 2015-05-15 2015-05-15 Solar LED street lamp device for lifting solar cell panel and use method of device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510248065.2A CN104896407A (en) 2015-05-15 2015-05-15 Solar LED street lamp device for lifting solar cell panel and use method of device

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CN104896407A true CN104896407A (en) 2015-09-09

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107040193A (en) * 2016-12-26 2017-08-11 贵州绿卡能科技实业有限公司 The high-efficiency photovoltaic electrification work station of low Rizhao Area
CN108105704A (en) * 2017-12-23 2018-06-01 张红艳 A kind of logistic storage headlamp
CN108317469A (en) * 2018-01-25 2018-07-24 苏州玛斯堡威电子科技有限公司 A kind of solar illumination apparatus
CN109230350A (en) * 2018-08-07 2019-01-18 六安市叶集区亿源木业加工有限公司 A kind of double-deck scoreboard transport device of wood industry processing
CN111486393A (en) * 2020-05-14 2020-08-04 温州谷枫电子科技有限公司 Signal amplifier connected to street lamp

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Publication number Priority date Publication date Assignee Title
EP1178261A2 (en) * 2000-07-31 2002-02-06 Rudolf Zimmermann GmbH & Co. KG. Solar light having a substantially spherical, at least partially light pervious body
JP2011117170A (en) * 2009-12-02 2011-06-16 Hanshin Expressway Co Ltd Optical power generation mechanism and display system
CN201892178U (en) * 2010-11-12 2011-07-06 南昌大学 Solar LED streetlamp and lifting structure thereof
CN103456807A (en) * 2013-08-16 2013-12-18 北京凡元兴科技有限公司 Solar cell panel device capable of being put away
CN204268348U (en) * 2014-12-10 2015-04-15 武汉喜玛拉雅光电科技股份有限公司 Multifunctional lawn lamp
CN104566164A (en) * 2015-01-29 2015-04-29 李常明 Solar illumination lamp with cleaning system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1178261A2 (en) * 2000-07-31 2002-02-06 Rudolf Zimmermann GmbH & Co. KG. Solar light having a substantially spherical, at least partially light pervious body
JP2011117170A (en) * 2009-12-02 2011-06-16 Hanshin Expressway Co Ltd Optical power generation mechanism and display system
CN201892178U (en) * 2010-11-12 2011-07-06 南昌大学 Solar LED streetlamp and lifting structure thereof
CN103456807A (en) * 2013-08-16 2013-12-18 北京凡元兴科技有限公司 Solar cell panel device capable of being put away
CN204268348U (en) * 2014-12-10 2015-04-15 武汉喜玛拉雅光电科技股份有限公司 Multifunctional lawn lamp
CN104566164A (en) * 2015-01-29 2015-04-29 李常明 Solar illumination lamp with cleaning system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107040193A (en) * 2016-12-26 2017-08-11 贵州绿卡能科技实业有限公司 The high-efficiency photovoltaic electrification work station of low Rizhao Area
CN107040193B (en) * 2016-12-26 2019-07-02 贵州绿卡能科技实业股份有限公司 The photovoltaic power generation work station of low Rizhao Area
CN108105704A (en) * 2017-12-23 2018-06-01 张红艳 A kind of logistic storage headlamp
CN108317469A (en) * 2018-01-25 2018-07-24 苏州玛斯堡威电子科技有限公司 A kind of solar illumination apparatus
CN109230350A (en) * 2018-08-07 2019-01-18 六安市叶集区亿源木业加工有限公司 A kind of double-deck scoreboard transport device of wood industry processing
CN109230350B (en) * 2018-08-07 2020-09-11 中山欧森木业有限公司 Wood industry processing is with double-deck board conveyer that divides
CN111486393A (en) * 2020-05-14 2020-08-04 温州谷枫电子科技有限公司 Signal amplifier connected to street lamp

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