CN111030569B - Photovoltaic flexible support of angularly adjustable - Google Patents

Photovoltaic flexible support of angularly adjustable Download PDF

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Publication number
CN111030569B
CN111030569B CN201911317022.XA CN201911317022A CN111030569B CN 111030569 B CN111030569 B CN 111030569B CN 201911317022 A CN201911317022 A CN 201911317022A CN 111030569 B CN111030569 B CN 111030569B
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China
Prior art keywords
supporting leg
adjusting flexible
adjusting
fixed
flexible supporting
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CN201911317022.XA
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CN111030569A (en
Inventor
谢浔
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TIANJIN WENLI NEW ENERGY TECHNOLOGY Co.,Ltd.
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Tianjin Wenli New Energy Technology Co ltd
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/073—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only leaf springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/425—Horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/0005—Attachment, e.g. to facilitate mounting onto confer adjustability
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/06—Fluid filling or discharging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/30—Sealing arrangements
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention discloses an angle-adjustable photovoltaic flexible support which comprises a plurality of main keels obliquely arranged from front to back, left to bottom and right, secondary keels are respectively fixed at two ends of the upper side of each main keel, a photovoltaic panel is fixed on each secondary keel, a connecting piece is respectively fixed at two ends of the lower side of each main keel, a first adjusting flexible supporting leg is hinged to the connecting piece at the left side, a second adjusting flexible supporting leg is hinged to the connecting piece at the right side, the structures of the first adjusting flexible supporting leg and the second adjusting flexible supporting leg are consistent, but the adjusting stroke of the first adjusting flexible supporting leg is smaller than that of the second adjusting flexible supporting leg. The angle of the photovoltaic panel can be adjusted through the first adjusting flexible support leg and the second adjusting flexible support leg with adjustable heights, the mounting problem caused by different heights of the ground or a concrete platform is solved, and meanwhile, the first adjusting flexible support leg and the second adjusting flexible support leg can reduce and buffer vibration of the photovoltaic panel in severe weather.

Description

Photovoltaic flexible support of angularly adjustable
Technical Field
The invention relates to the technical field of solar energy, in particular to a photovoltaic flexible support with an adjustable angle.
Background
Along with the emphasis of the international society on energy conservation and emission reduction, solar products are more and more widely applied, along with the gradual improvement of the scientific level, solar energy is more and more favored as a clean renewable resource, in the solar energy technology, a solar photovoltaic panel is a core part of a solar power generation system, the solar photovoltaic panel is the most common device for converting solar energy at present, in order to improve the conversion efficiency of the solar energy, the photovoltaic panel is obliquely laid on two or more than two transversely arranged secondary keels, the secondary keels are fixed on a main keel fixedly connected with the secondary keel, and the main keel is fixed on the ground or a concrete platform through two support legs with different lengths; the height of the ground or the concrete platform fixed by the support legs is high or low, or the length of the same type of support legs is difficult to keep consistent during processing, so that the slope of each main keel is different, the height of the photovoltaic panel paved on the secondary keel is high or low, the photovoltaic panel is irregular, and the later maintenance, such as cleaning, of the photovoltaic panel is influenced; meanwhile, the photovoltaic panel is fixed on the support, the angle of the photovoltaic panel is basically fixed, the photovoltaic panel cannot be adjusted, and the photovoltaic panel cannot meet the installation requirements of different places (such as places with different latitudes).
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an angle-adjustable photovoltaic flexible support, which can adjust the angle of a photovoltaic panel through a first adjustable flexible support leg and a second adjustable flexible support leg with adjustable heights, solves the installation problem caused by different heights of the ground or a concrete platform, and can reduce and buffer the vibration of the photovoltaic panel in severe weather.
The scheme for solving the technical problems is as follows:
a photovoltaic flexible support with adjustable angles comprises a plurality of main keels which are arranged in a front-back direction linear array in a left-low-right-high inclined mode, two ends of the upper side of each main keel are respectively fixed with a secondary keel which is perpendicular to the main keel, a photovoltaic panel is fixed on each secondary keel, two ends of the lower side of each main keel are respectively fixed with a connecting piece, the connecting piece on the left side is hinged with a first adjusting flexible supporting leg, the connecting piece on the right side is hinged with a second adjusting flexible supporting leg, the structures of the first adjusting flexible supporting leg and the second adjusting flexible supporting leg are consistent, but the adjusting stroke of the first adjusting flexible supporting leg is smaller than that of the second adjusting flexible supporting leg; the first adjusting flexible supporting leg and the second adjusting flexible supporting leg are respectively fixed on respective concrete platforms.
The first adjusting flexible support leg comprises a fixed support column fixed on the concrete platform and a lifting support column sleeved on the fixed support column, and the upper end of the lifting support column is hinged on the connecting piece; a round hole with an opening at the upper side is formed at the upper end of the fixed support column, a base shaft matched with the round hole is formed at the lower end of the lifting support column, the base shaft is inserted and sleeved in the round hole, and a cavity formed by the round hole and the base shaft is filled with hydraulic oil; the utility model discloses a lifting support, including fixed pillar, lifting support, screw, nut, hexagonal boss and upper lug, be fixed with the lower lug of three cylinder equipartition on the upper end outer wall of fixed pillar, be fixed with three and the last lug of lower lug one-to-one on the lower extreme outer wall of lifting support, the screw passes in proper order and stretches out the end spiro union down of last lug, lower lug and has the nut, and the centre gripping has the dish type spring between nut and the lower lug, between the hexagonal boss of screw and the upper lug.
And a plurality of sealing rings linearly arranged in the vertical direction are sleeved on the outer wall of the lower end of the base shaft, and the outer wall of each sealing ring is pressed against the inner wall of the round hole.
An oil through hole is formed in the base shaft, an oil filling hole communicated with the oil through hole is formed in the lifting support column, a threaded hole is formed in the outer side of the oil filling hole, a counter bore is formed in the outer side of the threaded hole, a sealing screw is screwed in the threaded hole, and an O-shaped ring is clamped between the shoulder of the sealing screw and the bottom surface of the counter bore.
A sealing groove is formed in the bottom surface of the counter bore, the O-shaped ring is arranged in the sealing groove, and the shoulder portion is pressed against the bottom surface of the counter bore.
And the middle part of the screw is in threaded connection with a third prepositioning nut and a fourth prepositioning nut which are arranged up and down, and the third prepositioning nut and the fourth prepositioning nut are positioned between the upper lug and the lower lug.
And anchor screws are embedded in the concrete platform, and the first adjusting flexible supporting leg and the second adjusting flexible supporting leg are respectively fixed on the corresponding anchor screws on the concrete platform.
The invention has the following outstanding effects: compared with the prior art, it can adjust the angle of flexible stabilizer blade regulation photovoltaic board through the first regulation flexible stabilizer blade of adjustable height and second, has solved the installation problem that ground or concrete platform's height differs brought simultaneously, and the vibration to photovoltaic board when first regulation flexible stabilizer blade and second regulation flexible stabilizer blade can reduce and cushion bad weather simultaneously.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 with respect to B;
fig. 4 is a top view of the present invention.
Detailed Description
The embodiment is shown in fig. 1 to 4, and the photovoltaic flexible support with the adjustable angle comprises a plurality of main keels 11 which are arranged in a front-back linear array in a left-low-right-high inclined mode, wherein two ends of the upper side of each main keel 11 are respectively fixed with a secondary keel 12 which is perpendicular to each main keel, a photovoltaic panel 13 is fixed on each secondary keel 12, two ends of the lower side of each main keel 11 are respectively fixed with a connecting piece 14, the connecting piece 14 on the left side is hinged with a first adjusting flexible supporting leg 2, the connecting piece 14 on the right side is hinged with a second adjusting flexible supporting leg 3, the structures of the first adjusting flexible supporting leg 2 and the second adjusting flexible supporting leg 3 are consistent, and the adjusting stroke of the first adjusting flexible supporting leg 2 is smaller than that of the second adjusting flexible supporting; the first flexible adjusting support leg 2 and the second flexible adjusting support leg 3 are respectively fixed on the concrete platforms 4.
Furthermore, the first adjustable flexible supporting leg 2 comprises a fixed pillar 21 fixed on the concrete platform 4 and a lifting pillar 22 sleeved on the fixed pillar 21, and the upper end of the lifting pillar 22 is hinged on the connecting piece 14; a round hole 211 with an opening at the upper side is formed at the upper end of the fixed support column 21, a base shaft 221 matched with the round hole 211 is formed at the lower end of the lifting support column 22, the base shaft 221 is inserted in the round hole 211, and a cavity 200 formed by the round hole 211 and the base shaft 221 is filled with hydraulic oil 23; the upper end outer wall of the fixed support column 21 is fixed with three lower lugs 24 which are uniformly distributed in a cylindrical manner, the lower end outer wall of the lifting support column 22 is fixed with three upper lugs 25 which are in one-to-one correspondence with the lower lugs 24, a screw 26 sequentially penetrates through the upper lugs 25 and the lower lugs 24, the lower extending end of the screw is in threaded connection with a nut 27, and disc-shaped springs 28 are clamped between the nut 27 and the lower lugs 24 and between the hexagonal bosses 261 of the screw 26 and the upper lugs 25.
Furthermore, a plurality of sealing rings 51 linearly arranged in the vertical direction are sleeved on the outer wall of the lower end of the base shaft 221, and the outer wall of the sealing ring 51 is pressed against the inner wall of the circular hole 211.
Further, an oil hole 222 is formed inside the base shaft 221, an oil filling hole 223 communicated with the oil hole 222 is formed in the lifting support column 22, a threaded hole 224 is formed outside the oil filling hole 223, a counter bore 225 is formed outside the threaded hole 224, a seal screw 52 is screwed into the threaded hole 224, and an O-ring 53 is clamped between a shoulder portion 521 of the seal screw 52 and the bottom surface of the counter bore 225.
Further, a seal groove is formed in the bottom surface of the counterbore 225, the O-ring 53 is disposed in the seal groove, and the shoulder 521 presses against the bottom surface of the counterbore 225.
Furthermore, the middle part of the screw 26 is screwed with a third pre-positioning nut 54 and a fourth pre-positioning nut 55 which are arranged up and down, and the third pre-positioning nut 54 and the fourth pre-positioning nut 55 are positioned between the upper lug 25 and the lower lug 24.
Furthermore, anchor screws 56 are embedded in the concrete platform 4, and the first adjustable flexible leg 2 and the second adjustable flexible leg 3 are respectively fixed on the corresponding anchor screws 56 on the concrete platform 4.
The working principle is as follows: photovoltaic board installation: first, the third pre-positioning nut 54 is screwed up, the third pre-positioning nut 54 abuts against the upper lug 25, and at this time, the fourth pre-positioning nut 55 presses against the lower lug 24 due to gravity; secondly, by rotating the fourth pre-positioning nut 55, if the fourth pre-positioning nut 55 is screwed downwards, the screw 26 moves upwards and pushes the lifting column 22 upwards through the third pre-positioning nut 54, and if the fourth pre-positioning nut 55 is screwed upwards, the lifting column 22 automatically moves downwards under the action of gravity, so that the heights of the first adjusting flexible leg and the second adjusting flexible leg are pre-adjusted; thirdly, after the height pre-adjustment of the first adjusting flexible leg and the second adjusting flexible leg is completed, adding hydraulic oil 23 to the cavity 200 through the oil filling hole 223 and the oil through hole 222, and screwing up the sealing screw 52 after the hydraulic oil is filled up; fourthly, the third pre-positioning nut 54 is moved downwards to be separated from the upper support lug 25, the fourth pre-positioning nut 55 is moved upwards to be separated from the lower support lug 24, then the nut 27 is screwed, and the disc-shaped spring 28 is in a compression deformation state, when the photovoltaic panel is shaken due to stress, the first adjusting flexible support leg and the second adjusting flexible support leg can absorb vibration force, so that the photovoltaic panel is damped; fifthly, since the adjusting stroke of the second adjusting flexible leg 3 is much larger than that of the first adjusting flexible leg 2, as shown in fig. 3 and 4, the angle of the photovoltaic panel is adjusted by adjusting the height stroke of the lifting pillar of the second flexible leg 3
Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.

Claims (4)

1. The utility model provides an angularly adjustable photovoltaic flexible support, includes main joist (11) that the high slope in the low right side in a left side of a plurality of fore-and-aft direction linear array set up, the upside both ends of main joist (11) respectively are fixed with one rather than perpendicular secondary joist (12) that set up, and photovoltaic board (13) are fixed on secondary joist (12), and the downside both ends of main joist (11) respectively are fixed with a connecting piece (14), its characterized in that: the left connecting piece (14) is hinged with a first adjusting flexible supporting leg (2), the right connecting piece (14) is hinged with a second adjusting flexible supporting leg (3), the structures of the first adjusting flexible supporting leg (2) and the second adjusting flexible supporting leg (3) are consistent, but the adjusting stroke of the first adjusting flexible supporting leg (2) is smaller than that of the second adjusting flexible supporting leg (3); the first adjusting flexible supporting leg (2) and the second adjusting flexible supporting leg (3) are respectively fixed on respective concrete platforms (4);
the first adjusting flexible supporting leg (2) comprises a fixed supporting column (21) fixed on the concrete platform (4) and a lifting supporting column (22) sleeved on the fixed supporting column (21), and the upper end of the lifting supporting column (22) is hinged to the connecting piece (14); a round hole (211) with an opening at the upper side is formed at the upper end of the fixed support column (21), a base shaft (221) matched with the round hole (211) is formed at the lower end of the lifting support column (22), the base shaft (221) is inserted and sleeved in the round hole (211), and hydraulic oil (23) is filled in a cavity (200) formed by the round hole (211) and the base shaft (221); the outer wall of the upper end of the fixed supporting column (21) is fixedly provided with three lower supporting lugs (24) which are uniformly distributed in a cylindrical manner, the outer wall of the lower end of the lifting supporting column (22) is fixedly provided with three upper supporting lugs (25) which correspond to the lower supporting lugs (24) one by one, a screw (26) sequentially penetrates through the upper supporting lugs (25), the lower extending end of each lower supporting lug (24) is in threaded connection with a nut (27), and a disc-shaped spring (28) is clamped between each nut (27) and each lower supporting lug (24) and between a hexagonal boss (261) of each screw (26) and each upper supporting lug (25);
a third pre-positioning nut (54) and a fourth pre-positioning nut (55) which are arranged up and down are screwed in the middle of the screw (26), and the third pre-positioning nut (54) and the fourth pre-positioning nut (55) are positioned between the upper lug (25) and the lower lug (24);
an oil through hole (222) is formed in the base shaft (221), an oil filling hole (223) communicated with the oil through hole (222) is formed in the lifting support column (22), a threaded hole (224) is formed in the outer side of the oil filling hole (223), a counter bore (225) is formed in the outer side of the threaded hole (224), a sealing screw (52) is screwed in the threaded hole (224), and an O-shaped ring (53) is clamped between a shoulder portion (521) of the sealing screw (52) and the bottom surface of the counter bore (225).
2. The photovoltaic flexible support with the adjustable angle as claimed in claim 1, wherein: the outer wall of the lower end of the base shaft (221) is sleeved with a plurality of sealing rings (51) which are linearly arranged in the vertical direction, and the outer wall of each sealing ring (51) is pressed against the inner wall of the circular hole (211).
3. The photovoltaic flexible support with the adjustable angle as claimed in claim 1, wherein: a sealing groove is formed in the bottom surface of the counter bore (225), the O-shaped ring (53) is arranged in the sealing groove, and the shoulder portion (521) is pressed against the bottom surface of the counter bore (225).
4. The photovoltaic flexible support with the adjustable angle as claimed in claim 1, wherein: the concrete platform (4) is pre-embedded with foundation screws (56), and the first adjusting flexible supporting leg (2) and the second adjusting flexible supporting leg (3) are respectively fixed on the foundation screws (56) on the corresponding concrete platform (4).
CN201911317022.XA 2019-12-19 2019-12-19 Photovoltaic flexible support of angularly adjustable Active CN111030569B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911317022.XA CN111030569B (en) 2019-12-19 2019-12-19 Photovoltaic flexible support of angularly adjustable

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Application Number Priority Date Filing Date Title
CN201911317022.XA CN111030569B (en) 2019-12-19 2019-12-19 Photovoltaic flexible support of angularly adjustable

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CN111030569B true CN111030569B (en) 2021-04-02

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CN206712719U (en) * 2017-05-19 2017-12-05 苏州海宝金属有限公司 A kind of terrain clearance adjustable photovoltaic bracket
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