CN116169931A - Wind-resistant cable structure of flexible photovoltaic bracket and construction method thereof - Google Patents
Wind-resistant cable structure of flexible photovoltaic bracket and construction method thereof Download PDFInfo
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- CN116169931A CN116169931A CN202211574346.3A CN202211574346A CN116169931A CN 116169931 A CN116169931 A CN 116169931A CN 202211574346 A CN202211574346 A CN 202211574346A CN 116169931 A CN116169931 A CN 116169931A
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- 238000010276 construction Methods 0.000 title claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 7
- 238000004873 anchoring Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/14—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against other dangerous influences, e.g. tornadoes, floods
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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
- H02S20/10—Supporting structures directly fixed to the ground
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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
- H02S30/00—Structural details of PV modules other than those related to light conversion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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- Business, Economics & Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
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- Photovoltaic Devices (AREA)
Abstract
The invention discloses an anti-wind cable structure of a flexible photovoltaic bracket, which comprises an anti-wind main cable for connecting photovoltaic panels into a string, wherein both ends of the anti-wind main cable are provided with anchor ingots, the foundation of each anchor ingot is buried underground, and both ends of the anti-wind main cable are fixed through the anchor ingots; a supporting rod is arranged below the photovoltaic panel, two ends of the supporting rod are fixed on the supporting main rope, and two ends of the supporting rod are provided with connecting ropes; the bottom ends of the connecting ropes are all fixed at the same position of the wind-resistant main rope, so that the stay bars and the two connecting ropes enclose a triangle; the wind-resistant main rope is arched from two ends towards the middle part to form an arch, the triangular area close to the end part of the wind-resistant main rope is larger than the triangular area close to the middle part of the wind-resistant main rope, and all triangles connected with the wind-resistant main rope in series are coplanar. The cost is saved, and the wind resistance is improved.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation fixing devices, in particular to an anti-wind cable structure of a flexible photovoltaic bracket and a construction method thereof.
Background
At present, the wind-resistant system of the flexible photovoltaic support is mainly restricted to photovoltaic panels by adopting a multi-connecting rod stable structure or a truss structure, so that the overall rigidity among the photovoltaic panels is increased, and the overall wind-resistant stability of the structure is improved. The multi-connecting rod structure or truss structure is usually in a steel structure form, so that the steel consumption is high, and the manufacturing and installation cost is high; and the multi-link structure or truss structure requires a large amount of lower space. In a specific application scene, the flexible photovoltaic bracket has certain requirements on the occupancy rate of the lower space of the structure, in order to meet the requirement on the occupancy rate of the lower space of the structure, the height of the stand column is increased, the bending resistance of the stand column is weakened, the section size of the stand column is required to be increased, and the cost is greatly increased, so that the occupancy rate of the wind-resistant system on the lower space is reduced, the working condition requirement is met, and meanwhile, the cost change range is smaller.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and particularly creatively provides a wind-resistant cable structure of a flexible photovoltaic bracket and a construction method thereof, so that the cost is saved, and the wind resistance is improved.
In order to achieve the above object, the present invention provides a wind-resistant cable structure of a flexible photovoltaic bracket, comprising a wind-resistant main cable for connecting photovoltaic panels into a string, both ends of the wind-resistant main cable being equipped with anchor ingots, the foundation of the anchor ingots being buried underground, both ends of the wind-resistant main cable being fixed by the anchor ingots; a supporting rod is arranged below the photovoltaic panel, two ends of the supporting rod are fixed on the supporting main rope, and two ends of the supporting rod are provided with connecting ropes; the bottom ends of the connecting ropes are all fixed at the same position of the wind-resistant main rope, so that the stay bars and the two connecting ropes enclose a triangle; the wind-resistant main rope is arched from two ends towards the middle part to form an arch, the triangular area close to the end part of the wind-resistant main rope is larger than the triangular area close to the middle part of the wind-resistant main rope, and all triangles connected with the wind-resistant main rope in series are coplanar.
In the scheme, the method comprises the following steps: the stay bar can be made of round steel pipes, steel bars or steel ropes, and the materials are simple and easy to obtain.
In the scheme, the method comprises the following steps: the upper part of the connecting rope is provided with a first connecting piece used for being fixed on the stay bar and the supporting main rope, and the lower end of the connecting rope is provided with a second connecting piece used for being fixed on the wind-resistant main rope.
In the scheme, the method comprises the following steps: the first connecting piece adopts a U-shaped clamp or a node plate to connect the stay bar, the connecting rope and the wind-resistant main rope; the second connecting piece adopts a U-shaped clamp or a node plate to connect the connecting rope and the wind-resistant main rope.
In the scheme, the method comprises the following steps: the anchor ingot comprises an anchor block foundation, anchor blocks and an anchor connecting structure, wherein the anchor block foundation is formed by pouring concrete, and can meet the traction requirement of an anti-wind main rope.
The invention also provides a construction method of the wind cable resistant structure of the flexible photovoltaic bracket, which comprises the wind cable resistant structure of the scheme, and further comprises the following steps:
s1: manufacturing an anchor ingot according to the span of the current photovoltaic panel bracket and the wind resistance requirement;
s2: fixing two ends of a stay bar on two supporting main ropes, and fixing a pair of connecting ropes at two ends of the stay bar respectively;
s3: fixing one end of the wind-resistant main rope on an anchor ingot, fixing the middle part of the wind-resistant main rope and a centrally arranged connecting rope together, fixing the other end of the wind-resistant main rope on the anchor ingot, sequentially fixing the connecting ropes of all photovoltaic plates on the wind-resistant main rope, applying prestress to the wind-resistant main rope according to design requirements, adjusting the prestress of the wind-resistant main rope to the stress of the design requirements, and stopping tensioning the wind-resistant main rope after the linearity of the wind-resistant main rope meets the requirements, thereby completing the construction of one wind-resistant main rope;
s4: and repeating the steps S1 to S3 until all the photovoltaic panels are fixed through the wind-resistant main ropes.
In the scheme, the method comprises the following steps: step S1 further includes: when the anchor ingot is manufactured, the arrangement position and the embedding depth of the anchor ingot are determined according to the span of the arch wind-resistant main rope and the bearing performance of the anchor ingot, corresponding pits are dug on the ground according to the arrangement position and the embedding depth, and the foundation of the anchor ingot is embedded into the pits.
In the scheme, the method comprises the following steps: step S2 further includes: the connecting cable is connected with the supporting rod through the first connecting piece, the top end of the first connecting piece is welded on the supporting rod, the top end of the first connecting piece is connected with the supporting main cable through the U-shaped clamp or the node plate, the bottom end of the first connecting piece is connected with the connecting cable through the U-shaped clamp or the node plate, and the clamping moment required by design is required when the first connecting piece is connected, so that the first connecting piece and the connecting cable are clamped, and sliding is not generated.
In the scheme, the method comprises the following steps: step S3 further includes: the two ends of the wind-resistant main rope are connected with the anchor ingots through the anchoring connection structures, the connecting rope is fixed on the wind-resistant main rope through the second connecting piece, the second connecting piece is connected with the wind-resistant main rope through the U-shaped clamp or the node plate, and the design required clamping moment is required to be achieved during connection, so that the second connecting piece is ensured to be clamped with the wind-resistant main rope, and sliding is not generated.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows: the wind-resistant structure has the characteristics of simple structure, low manufacturing cost, low occupancy rate of the space at the lower part of the wind-resistant structure and the like. The wind-resistant main rope that sets up can improve transverse traction force to resist the resistance that the keep out the wind brought, improve the wind resistance, reduce the input of middle part stand, save the cost, simultaneously owing to reduce middle part stand, then can not occupy the aquatic space such as pond, reservoir, can not influence workman's operation. In addition, the strength requirement on the photovoltaic panel supporting steel structure is reduced, and the cost is further saved. The anchor can stably fix the end part of the wind-resistant main rope, and ensure the traction force of the wind-resistant main rope. The connecting rope that sets up can enclose into triangle-shaped with the vaulting pole, can improve connection stability.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is a schematic illustration of the connection of a photovoltaic panel to a wind resistant main cable.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As shown in fig. 1 to 3, a wind-resistant cable structure of a flexible photovoltaic bracket includes a wind-resistant main cable 1 for connecting photovoltaic panels in a string. And the extending direction of the wind-resistant main rope 1 is mutually perpendicular to the extending direction of the photovoltaic panel fixing bracket, so as to form a crisscross fixing net. And a net-shaped fixing structure is formed by combining the photovoltaic panel fixing support and the wind-resistant main rope 1, so that the horizontal and vertical bearing performances are met, and the wind-resistant requirement is met. The photovoltaic board is fixed on supporting main rope 8, and the vaulting pole 2 is fixed with below the photovoltaic board.
Both ends of the wind-resistant main rope 1 are provided with anchor ingots 7, the foundations of the anchor ingots 7 are buried underground, and both ends of the wind-resistant main rope 1 are fixed through the anchor ingots 7. The anchor ingot 7 comprises an anchor block foundation, an anchor block and an anchor connecting structure, wherein the anchor block foundation is formed by pouring concrete, and can meet the pulling resistance requirement of the wind-resistant main rope 1. The anchor block is fixed on the anchor block foundation, the anchor connecting structure is fixed on the anchor block, and the end part of the wind-resistant main rope 1 is fixed through the anchor connecting structure.
The solar photovoltaic panel is characterized by further comprising a pair of connecting ropes 3 which are arranged corresponding to the photovoltaic panel, wherein the top ends of the connecting ropes 3 are respectively fixed at two ends of the stay bar 2, and the bottom ends of the connecting ropes 3 are fixed at the same position of the wind-resistant main rope 1, so that the stay bar 2 and the two connecting ropes 3 form a triangle. The stay bar 2 can be made of round steel pipes, steel bars or steel ropes, and the materials are simple and easy to obtain. The wind-resistant main rope 1 gradually arches upwards from two ends towards the middle to form an arch, the triangular area of the end part close to the wind-resistant main rope 1 is larger than the triangular area of the middle part close to the wind-resistant main rope 1, and all triangles connected in series with the wind-resistant main rope 1 are coplanar.
Wherein, the upper part of the connecting rope 3 is provided with a first connecting piece 4 which is used for being fixed on the stay bar 2, and the lower end of the connecting rope 3 is provided with a second connecting piece 5 which is used for being fixed on the wind-resistant main rope 1.
Wherein, the two ends of the first connecting piece 4 can be connected with the stay bar 2, the connecting rope 3 and the supporting main rope 8 by means of U-shaped clamps, gusset plates and the like. The upper end of the first connecting piece 4 can be fixedly connected to the stay bar 2 in a welding mode, an ear plate mode, a bolt connection mode and the like, the upper end of the first connecting piece 4 is connected with the supporting main rope 8 through a U-shaped clamp or a node plate, and the lower end of the first connecting piece 4 is connected with the connecting rope 3 through the U-shaped clamp or the node plate. The upper end of the second connecting piece 5 can fix the connecting rope 3 and the wind-resistant main rope 1 through a lug plate and the like.
The construction method of the wind cable resistant structure of the flexible photovoltaic bracket comprises the following steps of:
s1: manufacturing an anchor ingot 7 according to the span of the current photovoltaic panel bracket and the wind resistance requirement; when the anchor ingot 7 is manufactured, the arrangement position of the anchor ingot 7 and the embedding depth of the anchor ingot foundation are determined according to the span of the arch wind-resistant main rope 1 and the bearing performance of the anchor ingot 7, then corresponding pits are dug on the ground according to the arrangement position and the embedding depth, and the foundation of the anchor ingot 7 is embedded into the pits;
s2: two ends of the stay bar 2 are fixed with the two connecting ropes 3 through U-shaped clamps or node plates of the first connecting piece 4, and then a pair of connecting ropes 3 are respectively fixed at two ends of the stay bar 2 through the lower ends of the U-shaped clamps or the node plates of the first connecting piece 4; when the first connecting piece 4 is connected, the clamping moment required by design is required to be achieved, so that clamping among the stay bar 2, the connecting rope 3 and the supporting main rope 8 is ensured, and sliding is not generated;
s3: one end of the wind-resistant main rope 1 is fixed on an anchor ingot 7, then the connecting ropes 3 of the photovoltaic plates in the middle of the wind-resistant main rope 1 are fixed together, and the other end of the wind-resistant main rope 1 is fixed on the anchor ingot 7, wherein the two ends of the wind-resistant main rope 1 are connected with the anchor ingot 7 through an anchoring connecting structure;
then applying prestress to the wind-resistant main rope 1 according to design requirements, sequentially fixing the connecting ropes 3 of each photovoltaic panel on the wind-resistant main rope 1, adjusting the prestress of the wind-resistant main rope 1 to the design requirement stress by fixing one connecting rope 3, fixing the connecting rope 3 on the wind-resistant main rope 1 through a second connecting piece 5, and connecting the second connecting piece 5 with the wind-resistant main rope 1 through a U-shaped clamp or a node plate, wherein the connecting piece is required to achieve the design requirement clamping moment during connection, so that the second connecting piece 5 is clamped with the wind-resistant main rope 1 and no slippage is generated;
s4: and repeating the steps S1 to S3 until all the photovoltaic panels are built into the state shown in the figure 1 through the wind-resistant main rope 1.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The utility model provides a flexible photovoltaic support's anti wind cable structure which characterized in that: the photovoltaic panel wind-resistant main cable comprises a wind-resistant main cable (1) for connecting photovoltaic panels into a string, wherein anchor ingots (7) are arranged at two ends of the wind-resistant main cable (1), a foundation of each anchor ingot (7) is buried underground, and two ends of the wind-resistant main cable (1) are fixed through the anchor ingots (7); a supporting rod (2) is arranged below the photovoltaic panel, two ends of the supporting rod (2) are fixed on a supporting main rope (8), and connecting ropes (3) are arranged at two ends of the supporting rod (2); the bottom ends of the connecting ropes (3) are all fixed at the same position of the wind-resistant main rope (1), so that the stay bar (2) and the two connecting ropes (3) form a triangle; the wind-resistant main rope (1) is arched from two ends towards the middle part to form an arch, the triangular area close to the end part of the wind-resistant main rope (1) is larger than the triangular area close to the middle part of the wind-resistant main rope (1), and all triangles connected in series with the wind-resistant main rope (1) are coplanar.
2. The wind-resistant cable structure of a flexible photovoltaic bracket of claim 1, wherein: the stay bar (2) can be made of round steel pipes, steel bars or steel ropes.
3. The wind-resistant cable structure of a flexible photovoltaic bracket of claim 1, wherein: the upper portion of connecting cable (3) is equipped with first connecting piece (4) fixed with connecting stay bar (2), support main rope (8), the lower extreme of connecting cable (3) is equipped with second connecting piece (5) that are used for fixing on anti-wind main rope (1).
4. A flexible photovoltaic stent wind-resistant structure as claimed in claim 3, wherein: the first connecting piece (4) adopts a U-shaped clamp or a node plate to connect the stay bar (2), the connecting rope (3) and the supporting main rope (8), and the second connecting piece (5) adopts the U-shaped clamp or the node plate to connect the connecting rope (3) and the wind-resistant main rope (1).
5. The wind-resistant cable structure of a flexible photovoltaic bracket of claim 1, wherein: the anchor ingot (7) comprises an anchor block foundation, anchor blocks and an anchor connection structure, wherein the anchor block foundation is formed by concrete pouring.
6. A construction method of an anti-wind cable structure of a flexible photovoltaic bracket is characterized by comprising the following steps of: comprising the anti-wind cable structure of any one of claims 1 to 5, further comprising the steps of:
s1: manufacturing an anchor ingot (7) according to the span of the current photovoltaic panel bracket and the wind resistance requirement;
s2: two ends of the stay bar (2) are fixed on two supporting main ropes (8), and then a pair of connecting ropes (3) are respectively fixed at two ends of the stay bar (2);
s3: fixing one end of the wind-resistant main rope (1) on an anchor ingot (7), fixing the middle part of the wind-resistant main rope (1) and a centrally arranged connecting rope (3) together, fixing the other end of the wind-resistant main rope (1) on the anchor ingot (7), sequentially fixing the connecting ropes (3) of all photovoltaic panels on the wind-resistant main rope (1), applying prestress to the wind-resistant main rope (1) according to design requirements, adjusting the prestress of the wind-resistant main rope (1) to the stress of the design requirements, and stopping tensioning the wind-resistant main rope (1) after the linearity of the wind-resistant main rope (1) meets the requirements, so as to finish the construction of one wind-resistant main rope (1);
s4: and repeating the steps S1 to S3 until all the photovoltaic panels are fixed through the wind-resistant main rope (1).
7. The construction method of the wind cable resistant structure of the flexible photovoltaic bracket according to claim 7, wherein the construction method comprises the following steps: step S1 further includes: when the anchor ingot (7) is manufactured, the arrangement position and the embedding depth of the anchor ingot (7) are determined according to the span of the arch wind-resistant main rope (1) and the bearing performance of the anchor ingot (7), then corresponding pits are dug on the ground according to the arrangement position and the embedding depth, and the foundation of the anchor ingot (7) is embedded into the pits.
8. The construction method of the wind cable resistant structure of the flexible photovoltaic bracket according to claim 7, wherein the construction method comprises the following steps: step S2 further includes: connecting cable (3) and stay bar (2) are connected through first connecting piece (4), the top of first connecting piece (4) is welded on stay bar (2), the top of first connecting piece (4) is connected with supporting main cable (8) through U-shaped clamp or gusset plate, the bottom of first connecting piece (4) is connected with connecting cable (3) through U-shaped clamp or gusset plate, and design requirement clamping moment should be reached when connecting first connecting piece (4), clamping between first connecting piece (4) and connecting cable (3) is ensured, and slippage is not produced.
9. The construction method of the wind cable resistant structure of the flexible photovoltaic bracket according to claim 7, wherein the construction method comprises the following steps: step S3 further includes: the two ends of the wind-resistant main rope (1) are connected with the anchor ingots (7) through anchor connecting structures, the connecting rope (3) is fixed on the wind-resistant main rope (1) through a second connecting piece (5), the second connecting piece (5) is connected with the wind-resistant main rope (1) through a U-shaped clamp or a node plate, and the design requirement clamping moment is met during connection, so that the second connecting piece (5) is ensured to be clamped with the wind-resistant main rope (1) without sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211574346.3A CN116169931A (en) | 2022-12-08 | 2022-12-08 | Wind-resistant cable structure of flexible photovoltaic bracket and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211574346.3A CN116169931A (en) | 2022-12-08 | 2022-12-08 | Wind-resistant cable structure of flexible photovoltaic bracket and construction method thereof |
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| CN116169931A true CN116169931A (en) | 2023-05-26 |
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| CN202211574346.3A Pending CN116169931A (en) | 2022-12-08 | 2022-12-08 | Wind-resistant cable structure of flexible photovoltaic bracket and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116707398A (en) * | 2023-08-07 | 2023-09-05 | 苏州聚晟太阳能科技股份有限公司 | Flexible photovoltaic bracket |
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2022
- 2022-12-08 CN CN202211574346.3A patent/CN116169931A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116707398A (en) * | 2023-08-07 | 2023-09-05 | 苏州聚晟太阳能科技股份有限公司 | Flexible photovoltaic bracket |
| CN116707398B (en) * | 2023-08-07 | 2023-12-15 | 苏州聚晟太阳能科技股份有限公司 | Flexible photovoltaic bracket |
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