A fastening structure for a solar photovoltaic module

Abstract

This utility model relates to the field of fastener technology, specifically to a fastening structure for a solar photovoltaic module, installed on top of a pair of horizontally spaced load-bearing steel cables. It includes: main suspension beams, arranged in pairs and horizontally spaced above the two load-bearing steel cables; a stabilizing beam, located below the two main suspension beams and connected to one of the main suspension beams via multiple connecting beams, with both ends of the stabilizing beam connected to the other main suspension beam via adjusting beams; and a photovoltaic panel, located between any two adjacent connecting beams and abutting against the corresponding main suspension beam and the stabilizing beam. This utility model provides a support structure for installing photovoltaic panels on a flat roof. The stabilizing beam, connecting beams, and adjusting beams form a triangular support structure, thereby improving the installation stability of the photovoltaic panel and increasing installation adjustment efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically to a fastening structure for a solar photovoltaic module. Background Technology

[0002] Solar photovoltaic (PV) modules are typically fixed to brackets by directly bolting the frames together. However, this traditional fastening method has several drawbacks in practical applications: First, dynamic wind loads can cause module displacement. In strong winds, micro-slippage can easily occur between the PV modules and the brackets. Long-term cumulative effects can lead to loosening of the fastening bolts and even plastic deformation of the frames, severely impacting the system's structural stability and power generation efficiency. Second, stress concentration can cause frame damage. Traditional bolting concentrates the load at localized contact points. Under alternating temperature conditions or mechanical vibration, the frames are prone to micro-cracks due to stress concentration, reducing module lifespan, especially in areas with large temperature differences. Third, existing installation methods rely on manual tightening of bolts point by point, which is time-consuming, labor-intensive, and difficult to implement in high-altitude environments, making it unsuitable for the rapid deployment needs of large-scale PV power plants. To address these issues, a new fastening structure for solar PV modules is urgently needed that can ensure high installation efficiency while enhancing wind resistance, optimizing stress distribution, and improving long-term reliability. Utility Model Content

[0003] This utility model provides a support structure for installing photovoltaic panels on a flat roof. The structure consists of a stabilizing beam, a connecting beam, and an adjusting beam forming a triangular support structure, which improves the installation stability of the photovoltaic panels and also increases the installation adjustment efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fastening structure for a solar photovoltaic module, installed on top of a pair of horizontally spaced load-bearing steel cables, comprising: a main suspension beam, the main suspension beams being arranged in pairs and horizontally spaced on top of the two load-bearing steel cables; a stabilizing beam, the stabilizing beam being located below the two main suspension beams, and the stabilizing beam being connected to one of the main suspension beams via multiple connecting beams, and the two ends of the stabilizing beam being connected to the other main suspension beam via adjusting beams; and a photovoltaic panel, the photovoltaic panel being located between any two adjacent connecting beams and abutting against the corresponding main suspension beam and the stabilizing beam.

[0005] Preferably, both ends of each of the main lifting beams are connected to the corresponding load-bearing steel cables via cross clamps; and an upper support sleeve is fitted between the two cross clamps of the main lifting beam, and a lower support sleeve is fitted to the stabilizing beam corresponding to the upper support sleeve; each of the connecting beams is connected between the corresponding upper support sleeve and the corresponding lower support sleeve; the top of the photovoltaic panel is fixedly connected to the corresponding upper support sleeve, and the bottom is fixedly connected to the corresponding lower support sleeve.

[0006] Preferably, each of the main lifting beams is provided with an upper sleeve near both ends, and the stabilizing beam is provided with a lower sleeve near its end corresponding to the upper sleeve, and the adjusting beam is connected between the upper sleeve and the lower sleeve.

[0007] Preferably, the adjusting beam includes an upper lead screw perpendicularly connected to the upper sleeve and a lower lead screw perpendicularly connected to the lower sleeve, and also includes an adjusting cylinder that is threadedly engaged with the upper lead screw and the lower lead screw respectively, wherein the threads of the upper lead screw and the lower lead screw have opposite directions.

[0008] The beneficial effects of this utility model are as follows: The load-bearing steel cable serves as the basic load-bearing layer, horizontally erected in the air. Pairs of main suspension beams are placed horizontally at the top of the steel cable, forming the main load-bearing frame. A stabilizing beam is located below the two main suspension beams, fixed to one side of the main suspension beam via connecting beams and connected to the other side of the main suspension beam via adjusting beams, forming a stable triangular support. The photovoltaic panels are inserted between adjacent connecting beams, physically contacting the main suspension beams and the stabilizing beams. During operation, the load is transferred through surface contact, thus avoiding stress concentration. The stabilizing beam and the main suspension beams form a rigid triangular unit, suppressing lateral displacement. The adjusting beam provides pre-adjustment of tension, compensating for steel cable deformation and preventing the accumulation of micro-slippage.

[0009] Both ends of each of the main lifting beams are connected to the corresponding load-bearing steel cables via cross clamps; and an upper support sleeve is fitted between the two cross clamps of the main lifting beam, and a lower support sleeve is fitted to the stabilizing beam corresponding to the upper support sleeve; each of the connecting beams is connected between the corresponding upper support sleeve and the corresponding lower support sleeve; the top of the photovoltaic panel is fixedly connected to the corresponding upper support sleeve, and the bottom is fixedly connected to the corresponding lower support sleeve.

[0010] In the above technical solution, a more precise dynamic load transfer system is constructed through the coordinated design of the cross clamp, upper support sleeve, and lower support sleeve. The cross clamp anchors both ends of the main lifting beam to the load-bearing steel cable. Its cross structure provides X / Y bidirectional constraints, suppressing lateral displacement caused by the swing of the steel cable, while also increasing the friction of the clamping surface to prevent micro-slippage between the main lifting beam and the steel cable. The upper support sleeve serves as the top anchor point of the connecting beam, dispersing the local compressive stress of the main lifting beam. The lower support sleeve is fixed at the corresponding position of the stabilizing beam, forming a perpendicularly aligned force couple with the upper support sleeve, and bearing the load at the bottom of the photovoltaic panel. The connecting beam rigidly connects the upper and lower support sleeves, forming a short column-type force transmission path, and directly transferring the load of the photovoltaic panel to the triangular support structure.

[0011] Each of the main lifting beams has an upper sleeve near both ends, and the stabilizing beam has a lower sleeve near its end corresponding to the upper sleeve. The adjusting beam connects the upper sleeve and the lower sleeve. The adjusting beam includes an upper lead screw perpendicularly connected to the upper sleeve and a lower lead screw perpendicularly connected to the lower sleeve, and also includes an adjusting cylinder that is threadedly engaged with the upper lead screw and the lower lead screw respectively. The threads of the upper lead screw and the lower lead screw have opposite directions of rotation.

[0012] This structure transforms static fastening into dynamic prestress control, replacing the uncertainty of manual tightening with the determinism of mechanical threads, achieving a highly efficient conversion from "rotation to compression" motion. Integrated adjustment: a single component integrates 12 adjustment points but only requires operation of 4 exposed adjustment cylinders, thus reducing operation and adjustment costs and improving maintenance efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a top view of the overall structure of this utility model;

[0015] Figure 2 This is a front view of the overall structure of this utility model;

[0016] Figure 3 This is a partial structural cross-sectional view of the present invention.

[0017] In the diagram: 1. Load-bearing steel cable; 2. Main lifting beam; 3. Stabilizing beam; 4. Connecting beam; 5. Photovoltaic panel; 6. Cross clamp; 7. Upper support sleeve; 8. Lower support sleeve; 9. Upper clamp; 10. Lower clamp; 11. Upper lead screw; 12. Lower lead screw; 13. Adjusting cylinder. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] according to Figure 1 , Figure 2 , Figure 3As shown, a fastening structure for a solar photovoltaic module is installed on top of a pair of horizontally spaced load-bearing steel cables 1. It includes: a main suspension beam 2, which is arranged in pairs and horizontally spaced on top of the two load-bearing steel cables 1; a stabilizing beam 3, located below the two main suspension beams 2, and connected to one of the main suspension beams 2 via multiple connecting beams 4; both ends of the stabilizing beam 3 are connected to the other main suspension beam 2 via adjusting beams; and a photovoltaic panel 5, located between any two adjacent connecting beams 4 and abutting against the corresponding main suspension beam 2 and the stabilizing beam 3.

[0020] In the above design, the load-bearing steel cable 1 serves as the basic load-bearing layer, horizontally erected in the air. Pairs of main suspension beams 2, placed transversely at the top of the steel cable, form the main load-bearing frame. A stabilizing beam 3 is located below the two main suspension beams 2, fixed to one side of the main suspension beam 2 via connecting beams 4, and connected to the other side of the main suspension beam 2 via adjusting beams, forming a stable triangular support. Photovoltaic panels 5 are inserted between adjacent connecting beams 4, physically contacting the main suspension beams 2 and the stabilizing beam 3. During operation, the load is transferred through surface contact, thus avoiding stress concentration. The stabilizing beam 3 and the main suspension beams 2 form a rigid triangular unit, suppressing lateral displacement. The adjusting beam provides pre-adjustment of tension, compensating for steel cable deformation and preventing the accumulation of micro-slippage.

[0021] Both ends of each of the main lifting beams 2 are connected to the corresponding load-bearing steel cables 1 via cross clamps 6; and an upper support sleeve 7 is fitted between the two cross clamps 6 of the main lifting beam 2, and a lower support sleeve 8 is provided for the stabilizing beam 3 corresponding to the upper support sleeve 7; each of the connecting beams 4 is connected between the corresponding upper support sleeve 7 and the lower support sleeve 8; the top of the photovoltaic panel 5 is fixedly connected to the corresponding upper support sleeve 7, and the bottom is fixedly connected to the corresponding lower support sleeve 8.

[0022] In the above technical solution, a more precise dynamic load transfer system is constructed through the coordinated design of the cross clamp 6, the upper support sleeve 7, and the lower support sleeve 8. The cross clamp 6 anchors both ends of the main lifting beam 2 to the load-bearing steel cable 1. Its cross structure provides X / Y bidirectional constraints, suppressing lateral displacement caused by the swing of the steel cable, and also increases the friction of the clamping surface to prevent micro-slippage between the main lifting beam 2 and the steel cable. The upper support sleeve 7 serves as the top anchor point of the connecting beam 4, dispersing the local compressive stress of the main lifting beam 2. The lower support sleeve 8 is fixed at the corresponding position of the stabilizing beam 3, forming a perpendicularly aligned force couple with the upper support sleeve 7, and bearing the load at the bottom of the photovoltaic panel 5. The connecting beam 4 rigidly connects the upper support sleeve 7 and the lower support sleeve 8, forming a short column-type force transmission path, and directly transferring the load of the photovoltaic panel 5 to the triangular support structure.

[0023] Each of the main lifting beams 2 has an upper sleeve 9 near both ends, and a lower sleeve 10 is provided near the end of the stabilizing beam 3 corresponding to the upper sleeve 9. An adjusting beam is connected between the upper sleeve 9 and the lower sleeve 10. The adjusting beam includes an upper lead screw 11 perpendicularly connected to the upper sleeve 9 and a lower lead screw 12 perpendicularly connected to the lower sleeve 10, and also includes an adjusting cylinder 13 threadedly engaged with the upper lead screw 11 and the lower lead screw 12 respectively. The threads of the upper lead screw 11 and the lower lead screw 12 have opposite directions of rotation.

[0024] This structure transforms static fastening into dynamic prestress control, replacing the uncertainty of manual tightening with the determinism of mechanical threads, achieving a highly efficient conversion from "rotation to compression" motion. Integrated adjustment: a single component integrates 12 adjustment points but only requires operation of 4 exposed adjustment cylinders 13, thus reducing operation and adjustment costs and improving maintenance efficiency.

[0025] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A fastening structure of a solar photovoltaic module installed at the top of a pair of horizontally spaced load bearing cables (1), characterized in that ,include: Main lifting beam (2), the main lifting beam (2) is arranged in pairs and is placed horizontally on top of the two load-bearing steel cables (1) at intervals; A stabilizing beam (3) is located below the two main lifting beams (2), and the stabilizing beam (3) is connected to one of the main lifting beams (2) by a plurality of connecting beams (4), and the two ends of the stabilizing beam (3) are connected to the other main lifting beam (2) by adjusting beams; A photovoltaic panel (5) is located between any two adjacent connecting beams (4) and abuts against the corresponding main suspension beam (2) and the stabilizing beam (3).

2. The fastening structure for a solar photovoltaic module according to claim 1, characterized in that: Each of the main lifting beams (2) is connected to the corresponding load-bearing steel cable (1) at both ends by cross clamps (6); and the main lifting beam (2) is fitted with an upper support sleeve (7) between the two cross clamps (6), and the stabilizing beam (3) is fitted with a lower support sleeve (8) corresponding to the upper support sleeve (7); each of the connecting beams (4) is connected between the corresponding upper support sleeve (7) and the corresponding lower support sleeve (8); the top of the photovoltaic panel (5) is fixedly connected to the corresponding upper support sleeve (7), and the bottom is fixedly connected to the corresponding lower support sleeve (8).

3. The fastening structure of a solar photovoltaic module according to claim 2, wherein: Each of the main lifting beams (2) is provided with an upper sleeve (9) near both ends, and the stabilizing beam (3) is provided with a lower sleeve (10) near the end corresponding to the upper sleeve (9). The adjusting beam is connected between the upper sleeve (9) and the lower sleeve (10).

4. The fastening structure of a solar photovoltaic module according to claim 3, wherein: The adjusting beam includes an upper screw (11) vertically connected to the upper sleeve (9) and a lower screw (12) vertically connected to the lower sleeve (10), and also includes an adjusting cylinder (13) threadedly engaged with the upper screw (11) and the lower screw (12) respectively, wherein the threads of the upper screw (11) and the lower screw (12) are opposite in direction.

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