A photovoltaic roofing system
The adjustable support frame structure solves the problems of installation flexibility and stability in traditional photovoltaic roof systems, enabling adjustments to adapt to different roof slopes and photovoltaic panel angles, thereby improving solar energy utilization and system stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN HUAGOU PREFABRICATED ARCHITECTURAL DESIGN RES CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-12
Smart Images

Figure CN224351526U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solar photovoltaic technology, specifically a photovoltaic roof system. Background Technology
[0002] With the promotion of clean energy, photovoltaic roof systems are being used more and more widely in the building sector.
[0003] Traditional photovoltaic (PV) roof systems typically employ fixed support structures, which suffer from the following drawbacks: Insufficient installation flexibility: Fixed supports are difficult to adapt to different roof slopes (such as flat roofs, sloping roofs, and arched roofs), requiring customized production, resulting in high installation costs and low efficiency; Poor structural stability: Traditional supports often rely on simple bolt connections, which are prone to loosening under severe weather conditions such as strong winds and heavy rain, posing safety hazards; Limited PV panel adjustment: The angle of PV panels cannot be adjusted according to seasonal changes, leading to low solar energy utilization; Complex construction: The installation process requires on-site cutting and welding, demanding high technical skills from construction personnel and easily damaging the roof's waterproofing layer. Therefore, a new PV roof system is proposed. Utility Model Content
[0004] This invention provides a photovoltaic roof system that can adapt to different roof slopes, eliminates the need for customized brackets, reduces installation costs, and provides more stable support for photovoltaic panels.
[0005] This utility model provides the following technical solution: a photovoltaic roof system, including a fixed base, with side connecting plates fixedly connected to both sides of the outer wall of the fixed base, and a cross frame fixedly connected to the top of the fixed base. Multiple fixed rods penetrate the outer wall of the cross frame, and the number of the multiple fixed rods is six. Bottom telescopic rods penetrate the top ends of the multiple fixed rods, and bottom support feet are fixedly connected to the bottom ends of the multiple bottom telescopic rods. Sleeve rods are slidably connected to the top ends of the multiple bottom telescopic rods.
[0006] As a preferred technical solution of this utility model, the plurality of bottom telescopic rods are arranged in pairs.
[0007] As a preferred embodiment of this utility model, the top ends of each of the multiple sleeve rods are fixedly connected to a top rotating joint.
[0008] As a preferred technical solution of this utility model, the plurality of top rotating sections are arranged in pairs corresponding to each other.
[0009] As a preferred embodiment of this utility model, the inner walls of the plurality of top rotating sections are rotatably connected to rotating rods, and the ends of the plurality of rotating rods away from the top rotating sections are rotatably connected to connecting sections.
[0010] As a preferred embodiment of this utility model, the inner walls of the plurality of connecting sections are rotatably connected to support rods, and the top ends of the plurality of support rods are fixedly connected to top fixing plates.
[0011] As a preferred embodiment of this utility model, connecting rods are fixedly connected to both sides of the outer wall of the top fixing plate, and multiple fixing buckles are snapped onto the outer walls of the multiple connecting rods. An extension plate is fixedly connected to the top of the multiple fixing buckles, and a photovoltaic panel is fixedly connected to the top of the multiple extension plates by connecting bolts. A baffle is fixedly connected to the end of the multiple extension plates away from the top fixing plate.
[0012] Compared with the prior art, the present invention provides a photovoltaic roofing system with the following advantages:
[0013] 1. This photovoltaic roofing system can adapt to roof slopes from 5° to 60° by adjusting the height of the bottom telescopic rod and sleeve rod. It does not require customized brackets, reducing installation costs. The multi-hole design of the edge connecting plate is compatible with different purlin spacings and is suitable for various building structures such as concrete roofs and metal roofs.
[0014] 2. This photovoltaic roof system can achieve ±45° angle adjustment of the photovoltaic panels by setting a combination of top rotating joint and rotating rod. The average annual power generation is 15%-20% higher than that of fixed brackets. The triangular support structure forms a stable mechanical system with rotating rod, support rod and top fixed plate, which makes the support more stable. Attached Figure Description
[0015] Figure 1 is a three-dimensional structural diagram of this utility model;
[0016] Figure 2 is a schematic diagram of the multi-angle three-dimensional structure of this utility model;
[0017] Figure 3 is a schematic diagram of the internal connection structure of this utility model;
[0018] Figure 4 is a schematic diagram of the connection structure of the top fixing plate of this utility model.
[0019] In the diagram: 1. Fixed base; 2. Side connecting plate; 3. Cross frame; 4. Fixed rod; 5. Bottom support foot; 6. Bottom telescopic rod; 7. Sleeve rod; 8. Top rotating joint; 9. Rotating rod; 10. Top fixed plate; 11. Extension plate; 12. Connecting rod; 13. Fixing buckle; 14. Baffle; 15. Photovoltaic panel; 16. Connecting joint; 17. Support rod. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please refer to Figure 1- Figure 4 This utility model discloses a photovoltaic roof system, including a fixed base 1. Side connecting plates 2 are fixedly connected to both sides of the outer wall of the fixed base 1, and a cross frame 3 is fixedly connected to the top of the fixed base 1. Multiple fixed rods 4 pass through the outer wall of the cross frame 3, and there are six fixed rods 4. Bottom telescopic rods 6 pass through both ends of the top of the multiple fixed rods 4. Bottom support feet 5 are fixedly connected to the bottom ends of the multiple bottom telescopic rods 6, and sleeve rods 7 are slidably connected to the top of the multiple bottom telescopic rods 6.
[0022] Specifically, this photovoltaic roof system uses a fixed base 1 as its foundation support, which is fixed to the roof via side connecting plates 2. An adjustable support frame is constructed using components such as crossbeams 3, fixed rods 4, bottom telescopic rods 6, and sleeve rods 7. The angle of the photovoltaic panels 15 can be flexibly adjusted via a top rotating joint 8, rotating rod 9, and connecting joint 16. Finally, the photovoltaic panels 15 are installed and fixed using fixing clips 13 and extension plates 11. The overall structure combines stability and adjustability, making it suitable for various roof environments. The fixed base 1 is made of high-strength aluminum alloy and is fixed to the roof structure layer using expansion bolts or chemical anchors to ensure a stable system foundation. The side connecting plates 2 can be adjusted in position according to the roof purlin spacing to enhance adaptability. The crossbeams 3 are welded to the top of the fixed base 1, forming a horizontal support frame. Six fixed rods 4 running through the crossbeams 3 are symmetrically distributed, made of hot-dip galvanized steel with anti-corrosion surface treatment, and bear the weight of the upper support structure and the load of the photovoltaic panels 15.
[0023] In this implementation plan, multiple bottom telescopic rods are arranged in pairs.
[0024] Specifically, the top of the fixed rod 4 is connected to the bottom telescopic rod 6 via a thread or pin. Each set of two telescopic rods can be adjusted in height by rotation or sliding to adapt to differences in roof slope. The bottom support feet 5 are made of rubber to increase friction with the roof surface and protect the roof waterproofing layer.
[0025] In this embodiment, the top ends of multiple sleeve rods 7 are fixedly connected to top rotating joints 8.
[0026] Specifically, by setting the sleeve rod 7 to slide and connect with the bottom telescopic rod 6, and fixing the height by the built-in spring or locking bolt, the vertical adjustment of the support structure can be achieved.
[0027] In this embodiment, multiple top rotating sections 8 are paired up and correspond to each other.
[0028] Specifically, the top rotating joint 8 at the top of the sleeve 7 adopts a rotating structure and can rotate 180°. The two ends of the rotating rod 9 are rotatably connected to the top rotating joint 8 and the connecting joint 16 through pins, forming a foldable triangular support structure.
[0029] In this embodiment, the inner walls of the multiple top rotating sections 8 are rotatably connected to rotating rods 9, and the ends of the multiple rotating rods 9 away from the top rotating sections 8 are rotatably connected to connecting sections 16.
[0030] Specifically, by changing the angle of the rotating rod 9, the tilt angle of the photovoltaic panel 15 can be adjusted, such as increasing the tilt angle on the winter solstice and decreasing the tilt angle in summer.
[0031] In this embodiment, the inner walls of multiple connecting sections 16 are rotatably connected to support rods 17, and the top ends of multiple support rods 17 are fixedly connected to top fixing plates 10.
[0032] Specifically, the connecting section 16 is welded and fixed to the support rod 17. The top fixing plate 10 at the top of the support rod 17 is a rectangular metal plate, and the lateral spacing of the photovoltaic panels 15 can be adjusted by bolts.
[0033] In this embodiment, connecting rods 12 are fixedly connected to both sides of the outer wall of the top fixing plate 10. Multiple fixing buckles 13 are snapped onto the outer walls of the multiple connecting rods 12. Extension plates 11 are fixedly connected to the top of the multiple fixing buckles 13. Photovoltaic panels 15 are fixedly connected to the top of the multiple extension plates 11 by connecting bolts. A baffle 14 is fixedly connected to the end of the multiple extension plates 11 away from the top fixing plate 10.
[0034] Specifically, the connecting rods 12 on both sides of the top fixing plate 10 are made of C-shaped channel steel, and the fixing buckles 13 are snapped into the grooves of the connecting rods 12, which can slide and adjust their position along the grooves to accommodate photovoltaic panels 15 of different sizes. The extension plate 11 is connected to the fixing buckles 13 by bolts, the photovoltaic panel 15 is installed at the top, and the end baffle 14 prevents the photovoltaic panel 15 from sliding laterally.
[0035] The working principle and usage process of this utility model are as follows: During use, based on the roof slope and purlin layout, the fixed base 1 is fixed to the roof using the edge connecting plate 2, ensuring the horizontal frame 3 is horizontal. The bottom telescopic rod 6 is rotated or slid to adjust the height of each set of fixed rods 4, ensuring the top of the sleeve rod 7 is on the same inclined plane to match the roof slope. The locking pins of the top rotating joint 8 and the rotating rod 9 are loosened. The tilt angle of the rotating rod 9 is manually adjusted according to the season or local solar altitude angle to change the tilt direction of the support rod 17. The pins of the rotating rod 9 and the connecting joint 16 are locked to fix the tilt angle of the photovoltaic panel 15, ensuring the photovoltaic panel 15 faces due north and is perpendicular to the sunlight, maximizing light absorption efficiency. The photovoltaic panel 15 is placed on the top of the extension plate 11 and fixed with connecting bolts. The photovoltaic panel 15 is adjusted by sliding the fixing buckle 13. The horizontal spacing ensures uniform gaps between panels, facilitating drainage and maintenance. The baffle 14 is installed to prevent the photovoltaic panels 15 from shifting laterally under strong winds, while also sealing the gaps at the panel ends to prevent dust accumulation.
[0036] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A photovoltaic roofing system, comprising a fixed base (1), characterized in that: Both sides of the outer wall of the fixed base (1) are fixedly connected with side connecting plates (2), and a cross frame (3) is fixedly connected to the top of the fixed base (1). Multiple fixed rods (4) are passed through the outer wall of the cross frame (3), and there are six fixed rods (4). Bottom telescopic rods (6) are passed through the top ends of the multiple fixed rods (4). Bottom support feet (5) are fixedly connected to the bottom ends of the multiple bottom telescopic rods (6), and sleeve rods (7) are slidably connected to the top ends of the multiple bottom telescopic rods (6).
2. The photovoltaic roofing system according to claim 1, characterized in that: Multiple bottom telescopic rods (6) are arranged in pairs.
3. A photovoltaic roofing system according to claim 1, characterized in that: Each of the multiple sleeve rods (7) has a top rotating joint (8) fixedly connected to its top end.
4. A photovoltaic roofing system according to claim 3, characterized in that: Furthermore, the multiple top rotating sections (8) are paired up in pairs.
5. A photovoltaic roofing system according to claim 4, characterized in that: The inner walls of the plurality of top rotating sections (8) are rotatably connected to rotating rods (9), and the ends of the plurality of rotating rods (9) away from the top rotating sections (8) are rotatably connected to connecting sections (16).
6. A photovoltaic roofing system according to claim 5, characterized in that: The inner walls of the multiple connecting sections (16) are rotatably connected to support rods (17), and the top ends of the multiple support rods (17) are fixedly connected to top fixing plates (10).
7. A photovoltaic roofing system according to claim 6, characterized in that: Connecting rods (12) are fixedly connected to both sides of the outer wall of the top fixing plate (10). Multiple fixing buckles (13) are snapped onto the outer walls of the multiple connecting rods (12). Extension plates (11) are fixedly connected to the top of the multiple fixing buckles (13). Photovoltaic panels (15) are fixedly connected to the top of the multiple extension plates (11) by connecting bolts. A baffle (14) is fixedly connected to the end of the multiple extension plates (11) away from the top fixing plate (10).