Support frame for roof photovoltaic panel and photovoltaic panel mounting structure

Abstract

The utility model relates to a support frame and photovoltaic panel mounting structure for roof photovoltaic panel, including at least two low side support columns, at least 2 high side support columns, low side support column and high side support column are connected through crossbeam between, still be provided with the crossbeam on for fixing photovoltaic panel's stringer, in the low side support column and a high side support column of mutual diagonal are connected with counterweight mounting portion respectively through first connecting rod, install counterweight block on counterweight mounting portion. Through diagonal concentration counterweight design, the traditional scattered arrangement cement pier is optimized to a small amount of concentrated arrangement counterweight block, and the material usage and roof handling operation amount are greatly reduced, only need to arrange 1-2 counterweight blocks in support diagonal position, realize stable connection through counterweight mounting portion and first connecting rod. In addition, the scheme reduces the concrete consumption, reduces the logistics and manual cost, makes the overall economy significantly improve, guarantees the wind resistance stability at the same time, realizes quick installation and cost optimization.

Description

Technical Field

[0001] This utility model relates to the field of rooftop photovoltaic panel technology, and in particular to a support frame and photovoltaic panel installation structure for rooftop photovoltaic panels. Background Technology

[0002] With the increasing global demand for renewable energy, solar photovoltaic (PV) power generation technology has developed rapidly. Among them, rooftop distributed PV systems have become one of the mainstream forms of solar energy application due to their advantages such as not occupying additional land and being able to be consumed locally. The core components of this system include photovoltaic panels and the supporting installation structure for fixing them to the roof.

[0003] The installation method of a rooftop photovoltaic (PV) system directly affects the system's safety, reliability, and impact on the building itself. Early installations commonly used metal brackets to support the PV panels, with the bracket legs rigidly connected to the roof's concrete structure (such as floor slabs or parapet walls) using bolts and other fasteners. While this method is stable, it requires extensive drilling into the roof, severely damaging the waterproofing and insulation layers, leaving behind potential problems like leaks and thermal bridging. Subsequent repairs are costly, significantly impacting the roof's lifespan and building safety.

[0004] To overcome the shortcomings of the aforementioned drilling-based fixing method and protect the integrity of the roof structure, the industry has developed a counterweight-based installation solution. This solution abandons drilling and instead uses sufficiently heavy concrete blocks placed on the roof, utilizing their own weight to stabilize the photovoltaic brackets, thus avoiding damage to the waterproofing and insulation layers. (See attached image) Figure 1 As shown, existing counterweight installations typically involve placing an independent concrete block under each support column, and then connecting the support column to the concrete block with bolts by drilling holes in the concrete block.

[0005] However, while this "one point, one block" distributed counterweight scheme solves the problem of not needing to drill holes, it introduces new issues: 1. It requires the prefabrication, transportation, and hoisting of a large number of heavy concrete blocks, significantly increasing material and logistics costs. During installation, numerous concrete blocks must be individually moved, positioned, and leveled, making the operation extremely inconvenient, resulting in a long construction period and high labor costs. 2. It lacks flexibility; once the system layout is determined, it is difficult to adjust. If expansion or repair is needed, moving and adjusting a large number of concrete blocks is extremely difficult. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a support frame and photovoltaic panel installation structure for rooftop photovoltaic panels.

[0007] This utility model is achieved by the following technical solution: a support frame for rooftop photovoltaic panels, including at least two low-side support columns and at least two high-side support columns, the low-side support columns and the high-side support columns are connected by a crossbeam, and a longitudinal beam for fixing the photovoltaic panels is also provided on the crossbeam; a counterweight mounting part is connected to a low-side support column and a high-side support column that are diagonally opposite each other by a first connecting rod, and a counterweight block is installed on the counterweight mounting part.

[0008] The above technical solution concentrates the counterweights on the counterweight installation part extending from the diagonal support columns. The diagonally arranged counterweights generate symmetrical moments, which significantly improves the wind uplift resistance compared to the traditional single column and single pier structure. Only one counterweight is needed for a single support to replace the original four cement piers, which reduces material costs and reduces the amount of roof handling work, greatly improving installation efficiency.

[0009] As a preferred embodiment of this invention, both the low-side support column and the high-side support column are liftable structures.

[0010] Through the above technical solution, the design of the liftable support column gives the support system height adaptability. By adjusting the height of the support column, it can flexibly adapt to the installation needs of roofs with different slopes. This not only solves the problem of difficult installation of traditional fixed-height supports under complex roof conditions, but also enables precise leveling during construction, ensuring the optimal tilt angle of the photovoltaic panels. When the roof is uneven, the independently adjustable support column can compensate for height differences, avoiding system deformation caused by installation stress. In addition, during later maintenance, the liftable feature facilitates temporary lifting of the support for inspection and maintenance, greatly improving the maintainability of the system.

[0011] As a preferred embodiment of this utility model, the low-side support column and the high-side support column are provided with a first connecting part, the counterweight mounting part is provided with a second connecting part, and the first connecting rod is hinged to the first connecting part and the second connecting part respectively.

[0012] Through the aforementioned technical solution, the introduction of the hinged connection structure endows the support system with dynamic adaptability, allowing relative movement between the support column and the counterweight within a certain range. This effectively absorbs the thermal expansion and contraction of materials due to temperature changes, as well as potential minor deformations of the roof. Compared to rigid connections, the hinged structure better disperses stress, preventing fatigue damage to the connection points due to long-term stress. Simultaneously, this design reduces the precision requirements during installation, allowing construction workers to complete the connection without strict alignment, greatly simplifying the installation process and improving construction efficiency.

[0013] As a preferred embodiment of this invention, the first connecting rod is a telescopic structure.

[0014] Through the above technical solution, the telescopic linkage allows the position of the counterweight to be adjusted according to actual needs. This not only accommodates counterweights of different sizes and weights but also optimizes the lever arm length of the counterweight system based on specific working conditions, achieving the best stability. During transportation and storage, the linkage can retract to reduce volume, improving logistics efficiency. When the system needs expansion or adjustment, the telescopic feature simplifies the modification work, eliminating the need to replace the entire linkage structure.

[0015] As a preferred embodiment of this utility model, a base plate is fixed to the bottom of both the low-side support column and the high-side support column, and a buffer pad is provided at the bottom of the base plate.

[0016] Through the above technical solution, the base plate design with a buffer pad establishes a protective layer between the support system and the roof, effectively mitigating the transmission of vibrations generated during system operation. The selection of the buffer material considers both shock absorption and waterproofing and insulation performance, avoiding electrolytic corrosion problems that may occur due to direct contact between metal components and the roof. Furthermore, this method transforms concentrated loads into more evenly distributed surface loads, reducing local pressure on the roof structure and extending the service life of the building roof.

[0017] This utility model also discloses an installation structure for rooftop photovoltaic panels, including multiple support frames, with adjacent support frames fixedly connected, wherein the support frame is any of the support frames described above.

[0018] Through the aforementioned technical solutions, the modular installation structure design enables the system to possess excellent scalability and adaptability. Multiple support units can be quickly combined using standardized connection methods to form large-scale photovoltaic arrays. This approach not only simplifies the installation process but also ensures the overall structural strength and stability of the system. When expansion is required, only the corresponding number of support units need to be added, without modifying the original structure, greatly reducing the cost and complexity of system expansion.

[0019] As a preferred embodiment of this utility model, the longitudinal beams on the support frame are fixed between two adjacent support frames by a connecting plate, and the connecting plate and the longitudinal beams are fixed and locked together by bolts.

[0020] The above technical solution enables a quick and reliable connection between supports using bolted connection plates. The mating structure between the connection plate and the longitudinal beam ensures the stability of the connection and effectively resists the shear force generated by wind loads. This connection method is simple to operate, requiring only a few tools for installation and disassembly, greatly improving construction efficiency.

[0021] As a preferred embodiment of this invention, two adjacent support frames are further connected by a second connecting rod to the adjacent counterweight mounting parts.

[0022] Through the above technical solution, the connecting rods between the counterweight installation parts integrate the dispersed counterweight blocks into a unified counterweight system, enhancing overall stability. This design not only optimizes the mechanical relationship between the counterweight blocks but also creates a neater and more orderly installation layout, improving the utilization rate of roof space.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model optimizes the traditionally dispersed cement piers into a small number of centrally arranged counterweight blocks through a diagonal centralized counterweight design. This significantly reduces material usage and roof handling workload. Only 1-2 counterweight blocks are needed at the diagonal positions of the support frame, and a stable connection is achieved through the counterweight installation part and the first connecting rod. This reduces the number of hoisting operations and shortens the installation time. In addition, the centralized arrangement of the counterweight blocks reduces concrete usage, logistics and labor costs, and significantly improves overall economic efficiency. This structure achieves rapid installation and cost optimization while ensuring wind resistance stability.

[0024] 2. By employing lifting support columns and a base plate with a buffer pad, vibration and deformation are further absorbed, preventing damage to the roof structure. Furthermore, the modular design allows multiple supports to work together to form a unified wind-resistant system, with overturning resistance far exceeding traditional single-point fixing solutions. This structure remains stable even in complex environments and requires no drilling or welding, completely avoiding damage to the roof. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the existing technology; Figure 2 This is a schematic diagram of the support frame for rooftop photovoltaic panels according to Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the support frame for rooftop photovoltaic panels according to Embodiment 2 of this utility model.

[0026] Figure 4 This is a schematic diagram of the photovoltaic panel installation structure of this utility model; Figure 5 This is a schematic diagram of the photovoltaic panel mounting structure of this utility model after the photovoltaic panel has been installed.

[0027] Explanation of reference numerals in the attached figures: 1. Low-side support column; 2. High-side support column; 3. Crossbeam; 4. Longitudinal beam; 5. Base plate; 6. First connecting rod; 7. Counterweight mounting part; 8. Second connecting part; 9. First connecting part; 10. Counterweight block; 11. Connecting plate; 12. Photovoltaic panel; 13. Second connecting rod. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 2-5The present invention will be further described in detail below, along with specific implementation methods. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] Example 1: Reference Figure 2 This embodiment describes a support frame for rooftop photovoltaic panels, comprising two low-side support columns 1 and two high-side support columns 2. A crossbeam 3 connects the low-side support column 1 and the high-side support column 2. Two longitudinal beams 4 for fixing the photovoltaic panels 12 are also provided on the crossbeams 3. In this embodiment, both the low-side support columns 1 and the high-side support columns 2 are height-adjustable structures. By adjusting the height of the support columns, the installation requirements of roofs with different slopes can be flexibly adapted. This not only solves the problem of difficult installation of traditional fixed-height supports under complex roof conditions but also enables precise leveling during construction, ensuring the optimal tilt angle of the photovoltaic panels. When the roof is uneven, the independently adjustable support columns can compensate for height differences, avoiding system deformation caused by installation stress. Furthermore, the height-adjustable feature facilitates temporary lifting of the support frame for inspection and maintenance during later maintenance, greatly improving the maintainability of the system.

[0030] In this embodiment, both the bottom of the lower side support column 1 and the upper side support column 2 are fixed with a base plate 5, and a buffer pad is provided at the bottom of the base plate 5. The base plate 5 with the buffer pad establishes a protective layer between the support system and the roof, effectively mitigating the transmission of vibrations generated during system operation. The selection of the buffer material considers both shock absorption and waterproofing and insulation performance, avoiding electrolytic corrosion problems that may occur due to direct contact between metal components and the roof. Furthermore, this method transforms concentrated loads into more evenly distributed surface loads, reducing local pressure on the roof structure and extending the service life of the building roof.

[0031] A counterweight mounting part 7 is connected to a lower side support column 1 and a higher side support column 2, which are diagonally opposite each other, via a first connecting rod 6. A counterweight block 10 is mounted on the counterweight mounting part 7. In this embodiment, a first connecting part 9 is provided on the lower side support column 1 and the higher side support column 2, and a second connecting part 8 is provided on the counterweight mounting part 7. The first connecting rod 6 is hinged to the first connecting part 9 and the second connecting part 8, respectively. The first connecting rod 6 is a telescopic structure. The hinged connection structure enables the support system to have dynamic adaptability, allowing relative movement between the support column and the counterweight block within a certain range, effectively absorbing the thermal expansion and contraction of materials caused by temperature changes, as well as the minor deformation that may occur on the roof.

[0032] In this embodiment, the counterweight mounting part 7 is a circular ring, and the second connecting part 8 is fixed to the outer circumference of the circular ring by bolts. The counterweight block 10 is a cement block with a T-shaped cross-section. The counterweight block 10 can be quickly installed by inserting it into the circular ring. The counterweight blocks are concentrated on the counterweight mounting part extending from the diagonal support columns. The diagonally arranged counterweight blocks generate symmetrical moments, which significantly improves the wind uplift resistance compared to the traditional single-column single-pier structure. Only one counterweight block is needed for a single support to replace the original four cement piers, reducing material costs, reducing roof handling work, and improving installation efficiency.

[0033] Example 2: Reference Figure 3 This embodiment discloses a support frame for rooftop photovoltaic panels. The rest is the same as the embodiment. The difference is that in this embodiment, the two low-side support columns 1 and the two high-side support columns 2 are connected to the counterweight mounting part 7 through the first connecting rod 6. This method is more stable than the structure in embodiment 1. Of course, the cost is also higher.

[0034] Example 3: Reference Figure 4 and Figure 5 This embodiment discloses an installation structure for rooftop photovoltaic panels, including multiple support frames, with adjacent support frames fixedly connected. The support frames are those described in Embodiment 1 or Embodiment 2.

[0035] The longitudinal beams 4 on the support frame are fixed between two adjacent support frames by a connecting plate 11, and the connecting plate 11 and the longitudinal beams 4 are fixed and locked together by bolts.

[0036] The two adjacent support frames are also connected by a second link 13 to the two adjacent counterweight mounting parts 7.

[0037] The second link 13 connecting the counterweight installation parts integrates the dispersed counterweight blocks into a unified counterweight system, enhancing overall stability. This design not only optimizes the mechanical relationship between the counterweight blocks 10, but also creates a cleaner and more orderly installation layout, improving the utilization of roof space.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A support frame for rooftop photovoltaic panels, characterized in that: It includes at least two low-side support columns (1) and at least two high-side support columns (2). The low-side support columns (1) and the high-side support columns (2) are connected by a crossbeam (3). A longitudinal beam (4) for fixing the photovoltaic panel (12) is also provided on the crossbeam (3). A counterweight mounting part (7) is connected to a low-side support column (1) and a high-side support column (2) that are diagonally opposite each other by a first connecting rod (6). A counterweight block (10) is installed on the counterweight mounting part (7).

2. The support frame for rooftop photovoltaic panels according to claim 1, characterized in that: Both the low-side support column (1) and the high-side support column (2) are liftable structures.

3. The support frame for rooftop photovoltaic panels according to claim 1, characterized in that: The low-side support column (1) and the high-side support column (2) are provided with a first connecting part (9), and the counterweight mounting part (7) is provided with a second connecting part (8). The first connecting rod (6) is hinged to the first connecting part (9) and the second connecting part (8) respectively.

4. The support rack for a rooftop photovoltaic panel of claim 1, wherein: The first link (6) is a telescopic structure.

5. The support frame for rooftop photovoltaic panels according to claim 1, characterized in that: A base plate (5) is fixed at the bottom of both the lower side support column (1) and the higher side support column (2), and a buffer pad is provided at the bottom of the base plate (5).

6. An installation structure for rooftop photovoltaic panels, characterized in that: It includes multiple support frames, with adjacent support frames fixedly connected, and the support frame is the support frame described in any one of claims 1-5.

7. The mounting structure for rooftop photovoltaic panels according to claim 6, characterized in that: The longitudinal beam (4) on the support frame is fixed between two adjacent support frames by a connecting plate (11), and the connecting plate (11) and the longitudinal beam (4) are fixed and locked together by bolts.

8. The mounting structure for rooftop photovoltaic panels according to claim 6, characterized in that: The two adjacent support frames are also connected by a second link to the two adjacent counterweight mounting parts (7).

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