Square tube frame based water-proof photovoltaic carport

Abstract

The utility model relates to photovoltaic carport technical field discloses a kind of water seepage prevention photovoltaic carport based on square tube frame, including several groups of carport steel frame arranged along vehicle parking direction, each group of carport steel frame includes two symmetrical single-row carport steel frames, single-row carport steel frame includes two different heights stand, the upper end of two stands is fixedly provided with same beam, the upper end of two is fixedly provided with multiple purlins, multiple purlins are provided with multiple main water channels along vehicle parking direction, multiple secondary water channels are arranged at equal intervals between adjacent two main water channels, the utility model is guided by the water structure of secondary water channel, main water channel and U-shaped gutter, photovoltaic module surface rainwater is guided, collected and exported, fundamentally solve the problem that existing photovoltaic carport is damaged due to component splicing gap leakage, metal support structure erosion, compared with the conventional scheme that waterproof glue aging cracking, metal pressing block cannot be completely sealed, waterproof effect is more durable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic carport technology, specifically a waterproof photovoltaic carport based on a square tube frame. Background Technology

[0002] In the field of photovoltaic carport technology, ordinary carports require workers to cut and weld steel on-site. This not only requires high professional skills from construction personnel, but is also greatly affected by external factors such as weather and site space. As a result, the overall installation cycle is generally as long as several weeks. In addition, the costs of labor, equipment rental and on-site management are added together, making the overall construction cost high. While existing photovoltaic carports offer advantages in energy utilization, they face a critical waterproofing challenge: because photovoltaic modules need to be spliced ​​and installed according to power generation requirements, gaps inevitably exist between the modules. During rainy weather, rainwater can easily seep into the carport through these gaps, not only causing damage to parked vehicles but also potentially corroding the carport's metal support structure and shortening its lifespan. While there are existing solutions in the industry, such as using waterproof adhesive to fill gaps or using metal blocks to press the edges of components, these solutions have limitations: adhesives are susceptible to aging and cracking due to temperature changes and ultraviolet radiation, and blocks can only reduce the width of gaps but cannot completely seal them. Ultimately, these solutions can only alleviate the leakage problem to a certain extent and cannot fundamentally solve the problem of leakage in photovoltaic carports. Utility Model Content

[0003] The purpose of this invention is to provide a waterproof photovoltaic carport based on a square tube frame, solving the following technical problem: While existing photovoltaic carports have advantages in energy utilization, they face a core waterproofing challenge: because photovoltaic modules need to be spliced ​​and installed according to power generation requirements, gaps inevitably exist between the modules. During rainy weather, rainwater can easily seep into the carport through these gaps, not only causing wet damage to parked vehicles but also potentially corroding the carport's metal support structure and shortening its service life. While there are existing solutions in the industry, such as using waterproof adhesive to fill gaps or using metal blocks to press the edges of components, these solutions have limitations: adhesives are susceptible to aging and cracking due to temperature changes and ultraviolet radiation, and blocks can only reduce the width of gaps but cannot completely seal them. Ultimately, these solutions can only alleviate the leakage problem to a certain extent and cannot fundamentally solve the problem of leakage in photovoltaic carports.

[0004] The objective of this utility model can be achieved through the following technical solutions: A waterproof photovoltaic carport based on a square tube frame includes several sets of carport steel frames arranged along the vehicle parking direction, and each set of carport steel frames includes two symmetrically arranged single rows of carport steel frames. The single-row carport steel frame includes two columns of different heights. The upper ends of the two columns are fixedly provided with the same crossbeam. The upper ends of the crossbeam are fixedly provided with multiple purlins. Multiple main water channels are provided on the multiple purlins along the vehicle parking direction. Multiple secondary water channels are provided at equal intervals between two adjacent main water channels. Photovoltaic modules are laid on the multiple secondary water channels.

[0005] As a further embodiment of this utility model: a U-shaped gutter extending along the vehicle parking direction is provided between the two single-row carport steel frames.

[0006] As a further embodiment of this utility model: the main water tanks at both ends are fixedly connected to the photovoltaic modules through the side pressure block base and the side pressure block, and the two adjacent photovoltaic modules are connected by the middle pressure block, the middle pressure block crossarm, and the grounding plate with threads.

[0007] As a further embodiment of this utility model: the main water tank is fixedly connected to the purlin via a water tank fixing block.

[0008] As a further embodiment of this utility model: the cross-sectional dimensions of the column are 120mm×120mm×4mm; The cross-sectional dimensions of the beam are 140mm × 120mm × 5mm.

[0009] As a further embodiment of this utility model: a plurality of straight tie bars and diagonal tie bars are provided between two adjacent purlins, and the straight tie bars and diagonal tie bars cooperate with the purlins to form a triangular structure.

[0010] As a further embodiment of this utility model: both the main water tank and the secondary water tank are provided with a hot-dip galvanized anti-corrosion layer, and the wall thickness is ≥1.0mm.

[0011] As a further embodiment of this utility model: the two crossbeams of the adjacent single-row carport steel frame are connected by a tie rod for support via turnbuckles.

[0012] As a further embodiment of this utility model: the lower ends of the two columns are fixed to a pre-cast reinforced concrete steel frame foundation.

[0013] As a further embodiment of this utility model: the main water tank has an "M" shaped structure, and the overlap length L of two adjacent main water tanks is ≥200mm.

[0014] The beneficial effects of this utility model are: (1) By constructing a complete water guiding system consisting of a secondary water guide channel, a main water guide channel, and a U-shaped gutter, rainwater can drip along the photovoltaic modules to the secondary water guide channel, be directed into the main water guide channel through the secondary water guide channel, and then flow into the U-shaped gutter through the inclined design of the main water guide channel and be discharged through the drain outlet. This completely prevents rainwater from seeping into the carport from the gaps between the modules, thus preventing parked vehicles from being soaked and damaged, and also preventing the metal support structure from being corroded. Compared with the traditional solution where waterproof glue is prone to aging and metal blocks cannot be sealed, the waterproof effect is more durable and reliable, effectively extending the service life of the carport. (2) The steel frame of the carport of this utility model adopts an integrated steel frame, which is convenient to process. The columns and beams are made of square tubes, which is more economical than traditional H-beams and reduces the material cost. The carport steel frame is mainly connected by bolts, which reduces on-site steel cutting and welding operations, reduces the skill requirements of construction personnel, reduces interference from external factors such as weather and site, shortens the installation cycle, and reduces the superposition of labor, equipment rental and management costs, effectively alleviating the problem of high comprehensive construction cost of ordinary carports, and taking into account both economy and practicality.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the steel frame of the carport of this utility model; Figure 2 This is a plan view of the double-column, two-way carport tie rod support of this utility model; Figure 3 This is a layout diagram of the double-column bidirectional photovoltaic system for carports according to this utility model; Figure 4 This is a layout diagram of the double-column, two-way carport water trough of this utility model; Figure 5 This is a plan view of the double-column, two-way carport purlin of this utility model; Figure 6 This is a diagram showing the connection node between the diagonal tie rod and the end of the purlin in this utility model. Figure 7 This is a diagram of the diagonal tie rod, the tie rod and the middle connection node of the purlin of this utility model; Figure 8 This is a schematic diagram of the main water tank structure of this utility model; Figure 9 This is a diagram of the medium-pressure fixed node of the main water tank of this utility model; Figure 10 This is a diagram of the edge pressure fixing node of the main water tank of this utility model; Figure 11 This is a partial structural schematic diagram of the photovoltaic module, main water tank, and other components of this utility model; Figure 12 This is a schematic diagram of the overlapping structure of the main water tank of this utility model.

[0018] In the diagram: 1. Column; 2. Horizontal beam; 3. Purlin; 4. Main water channel; 5. Secondary water channel; 6. Photovoltaic module; 7. Straight tie rod; 8. Diagonal tie rod; 9. U-shaped gutter; 10. Tie rod support; 11. Pressure block base; 12. Side pressure block; 13. Middle pressure block; 14. Middle pressure block crossarm; 15. Grounding plate; 16. Water channel fixing block; 17. Hex bolt. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] In the field of photovoltaic carport technology, ordinary carports rely on on-site steel cutting and welding, which requires highly skilled construction workers and is greatly affected by weather and site conditions, resulting in installation cycles of up to several weeks. The combined costs of labor, equipment rental, and management lead to high overall construction costs. While existing photovoltaic carports have advantages in energy utilization, they face a core waterproofing problem due to gaps in the splicing of photovoltaic modules. Rainwater can easily seep in, damaging vehicles, corroding the metal support structure, and shortening the service life. Existing solutions in the industry, such as waterproof adhesives that are prone to aging and cracking, and metal clamps that cannot completely seal the leaks, can only alleviate the leakage and cannot fundamentally solve the problem.

[0022] Example 1: Please refer to Figure 1 As shown, a waterproof photovoltaic carport based on a square tube frame includes several sets of carport steel frames arranged linearly and equidistantly. Each set of carport steel frames is arranged sequentially along the vehicle parking direction to form a stable carport support frame. Specifically, each set of carport steel frames adopts a symmetrical design, consisting of two rows of opposing single-row carport steel frames. Each row of single-row carport steel frames is composed of two columns 1 of different heights. The columns 1 are made of square tubes with a cross-sectional dimension of 120mm×120mm×4mm. The lower ends of the two columns 1 are fixed to the pre-cast reinforced concrete steel frame foundation by pre-embedded bolts or welding, ensuring that the column 1 is firmly connected to the foundation and can withstand the photovoltaic modules 6 on the roof and external loads such as rain and snow. The upper ends of the two columns 1 are connected to the crossbeams 2 by bolts. The crossbeams 2 have an inclination angle of 9° and are made of square tubes with a cross-sectional dimension of 140mm×120mm×5mm. The tops of the two columns 1 are connected to the crossbeams 2 to form an inclined roof support surface to accommodate the installation angle of the photovoltaic modules 6. Compared with the previous H-beams, the square tubes are more economical and can reduce the cost of use.

[0023] For details, please refer to Figure 1 - Figure 5 , Figure 8 - Figure 12 As shown, multiple purlins 3 are fixed to the upper end of the crossbeam 2 by bolts. Multiple sets of main water channels 4 are set on the multiple purlins 3 along the vehicle parking direction. The main water channels 4 have an M-shaped structure. The overlap of two main water channels 4 is fixed with self-tapping screws and glue treatment. The overlap length L≥200mm. The main water channels 4 are fixedly connected to the purlins 3 by water channel fixing blocks 16 and M10×30 hex bolts 17. Multiple secondary water channels 5 are set at equal intervals between two adjacent main water channels 4. The multiple secondary water channels 5 are set on the upper end of the main water channels 4. Multiple photovoltaic modules 6 are laid on the upper end of the multiple secondary water channels 5. The photovoltaic modules 6 are solar photovoltaic panels. The main water channels 4 at both ends are fixed to the photovoltaic modules 6 by side pressure block bases 11 and side pressure blocks 12 with bolts. Two adjacent photovoltaic modules 6 are fixedly connected by middle pressure blocks 13, middle pressure block crossarms 14 and grounding plates 15 with bolts. The main water tank 4 and the secondary water tank 5 are both made of DX51D+ZAM275 galvanized aluminum-magnesium steel. The design can be determined after secondary verification based on the manufacturer's mold dimensions. The wall thickness is ≥1.0mm. The crossbeam 14 of the intermediate pressure block is made of S350+ZAM275 galvanized aluminum-magnesium steel. Its width matches that of the main water tank 4. The specific dimensions and wall thickness are further refined by the professional manufacturer. The intermediate pressure block 13 is made of 6063-T5 aluminum alloy. The component mounting bolts are made of SUS304-A2-70 stainless steel bolts. During construction, ensure that the bolts and self-tapping screws are tightly connected to prevent rainwater from falling on the photovoltaic module 6 and the bracket. Rainwater will drip down the photovoltaic module 6 into the secondary water tank 5 and then be guided into the main water tank 4 at both ends through the secondary water tank 5.

[0024] Example 2: Based on Example 1, please refer to... Figure 5 , Figure 6, Figure 7 As shown, multiple straight tie rods 7 and diagonal tie rods 8 are bolted between two adjacent purlins 3. These tie rods, together with the purlins 3, form a transverse support system. Because the photovoltaic carport is exposed to the outdoor natural environment for extended periods, its unobstructed installation makes it highly susceptible to various external forces, most notably longitudinal wind loads. For example, sudden gusts of wind along the length of the purlin 3 can exert continuous pushing and pulling forces on it. Furthermore, vibrations generated by the equipment during daily use can also be transmitted to the purlins 3 through the supports, potentially leading to component displacement over time.

[0025] To counteract these external forces, the diagonal tie rods 8, in conjunction with the straight tie rods 7, are inclined to the purlins 3, forming a stable triangular structural system between adjacent purlins 3. This structural system utilizes the mechanical property of triangles to effectively withstand and offset longitudinal tensile or compressive forces applied from the outside. When longitudinal wind loads attempt to push the purlins 3 along their length, the diagonal tie rods 8 will provide a counter-restraint through their own tension force; when equipment vibration causes the purlins 3 to have a slight displacement tendency, the triangular structure can also promptly disperse the force, ultimately preventing the purlins 3 from shifting or deforming longitudinally, ensuring the stability of the entire photovoltaic carport support system.

[0026] For details, please refer to Figure 1 and Figure 4 As shown, a U-shaped gutter 9 is installed between the two single-row steel frames of the carport. The gutter extends longitudinally along the steel frame (in the direction of vehicle parking), and its U-shaped trough structure can effectively collect and gather rainwater. The specific drainage path is as follows: the secondary water guide trough 5, laid under the photovoltaic module 6, first directs the rainwater on the surface of the module and the support area to the main water guide troughs 4 on both sides; the main water guide trough 4 has an inclined slope design, and the rainwater collected in the trough can naturally flow to the U-shaped gutter 9 located between the two steel frames, and finally be discharged through the drainage outlet of the gutter, avoiding the accumulation of rainwater on the support or module surface. Two adjacent symmetrical crossbeams 2 are connected by cross tie rod supports 10 via turnbuckles. The turnbuckles can be adjusted in length to precisely control the tightness of the cross tie rod supports, ensuring that the tie rods fit tightly against the crossbeams. The cross tie rod support 10 structure forms a two-way tie constraint between the two crossbeams 2, which can resist the displacement of the crossbeams 2 caused by lateral forces and distribute the load borne by the crossbeams 2, further improving the stability and deformation resistance of the entire photovoltaic carport steel frame structure.

[0027] Example 3: Based on Examples 1 and 2, a waterproof photovoltaic carport based on a square tube frame is provided. The column 1 is fixed on a reinforced concrete steel frame foundation, and then the crossbeam 2 is fixed. The crossbeam 2 is equipped with a main water channel 4 and a secondary water channel 5. The rainwater diversion path is as follows: rainwater drips from the photovoltaic module 6 onto the secondary water channel 5, is diverted through the secondary water channel 5 to the main water channel 4 at both ends, and then flows into the U-shaped gutter 9 through the main water channel 4, so as to achieve rapid drainage of rainwater.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waterproof photovoltaic carport based on a square tube frame, characterized in that, It includes several sets of carport steel frames arranged along the vehicle parking direction, and each set of carport steel frames includes two symmetrically arranged single rows of carport steel frames; The single-row carport steel frame includes two columns (1) of different heights. The upper ends of the two columns (1) are fixedly provided with the same crossbeam (2). The upper ends of the crossbeam (2) are fixedly provided with multiple purlins (3). Multiple main water channels (4) are provided on the multiple purlins (3) along the vehicle parking direction. Multiple secondary water channels (5) are provided at equal intervals between two adjacent main water channels (4). Photovoltaic modules (6) are laid on the multiple secondary water channels (5).

2. The waterproof photovoltaic carport based on a square tube frame according to claim 1, characterized in that, A U-shaped gutter (9) extending in the direction of vehicle parking is provided between the two single-row carport steel frames.

3. A waterproof photovoltaic carport based on a square tube frame according to claim 1, characterized in that, The main water tanks (4) at both ends are fixedly connected to the photovoltaic modules (6) through the side pressure block base (11) and the side pressure block (12). The two adjacent photovoltaic modules (6) are connected by the medium pressure block (13), the medium pressure block crossarm (14), and the grounding plate (15) with threads.

4. A waterproof photovoltaic carport based on a square tube frame according to claim 1, characterized in that, The main water tank (4) is fixedly connected to the purlin (3) through the water tank fixing block (16).

5. A waterproof photovoltaic carport based on a square tube frame according to claim 1, characterized in that, The cross-sectional dimensions of the column (1) are 120mm×120mm×4mm; The cross-sectional dimensions of the beam (2) are 140mm×120mm×5mm.

6. A waterproof photovoltaic carport based on a square tube frame according to claim 1, characterized in that, Multiple straight tie rods (7) and diagonal tie rods (8) are provided between two adjacent purlins (3), and the straight tie rods (7) and diagonal tie rods (8) cooperate with the purlins (3) to form a triangular structure.

7. A waterproof photovoltaic carport based on a square tube frame according to claim 1, characterized in that, Both the main water tank (4) and the secondary water tank (5) are equipped with hot-dip galvanized anti-corrosion layers, and the wall thickness is ≥1.0mm.

8. A waterproof photovoltaic carport based on a square tube frame according to claim 1, characterized in that, The two crossbeams (2) of the adjacent single-row carport steel frame are connected by a tie rod support (10) through turnbuckles.

9. A waterproof photovoltaic carport based on a square tube frame according to claim 1, characterized in that, The lower ends of the two columns (1) are fixed to a pre-cast reinforced concrete steel frame foundation.

10. A waterproof photovoltaic carport based on a square tube frame according to claim 1, characterized in that, The main water tank (4) has an "M" shaped structure, and the overlap length L of two adjacent main water tanks (4) is ≥200mm.

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