Automatic push-pull linkage adjustable fixing device for photovoltaic system

Abstract

The invention discloses an automatic push-pull linkage adjustable fixing device for a photovoltaic system. The device comprises two parallel guide rails, one end of each guide rail is a closed end while the other end of each guide rail is a free end, a transverse moving shaft perpendicular to the guide rails is respectively arranged between the closed ends of the guide rails and between the free ends of the guide rails, at least one transverse moving shaft is arranged between two ends of each guide rail, and a support is arranged between each two adjacent transverse moving shafts. Each support comprises two oblique beams with the top ends in rotatable connection, the bottom end of each oblique beam sleeves the corresponding transverse moving shaft, and a limiting device is arranged between the two oblique beams of each support. Rollers arranged on the guide rails are connected with two ends of each transverse moving shaft by means of bearing fit, a push rod is arranged between each two adjacent rollers, and a hydraulic push rod is arranged at the free end of each guide rail. By the automatic push-pull linkage adjustable fixing device for the photovoltaic system, simultaneous angle linkage adjustment of a photovoltaic module array formed by a plurality of rows of photovoltaic supports can be realized.

Description

technical field [0001] The invention relates to the technical field of photovoltaic system fixing, in particular to an automatic push-pull linkage adjustable fixing device for a photovoltaic system. Background technique [0002] Photovoltaic systems are usually composed of multiple rows of solar cell modules. Most of the existing photovoltaic system fixing devices (ie, photovoltaic system brackets) are made of steel structures or aluminum structures. Specifically, they can be divided into fixed type, sun-tracking type and adjustable type. , the classification method is based on the characteristics of the angle of the photovoltaic support and its relationship with the angle of direct sunlight. [0003] As disclosed in CN 202651135 U, a one-piece photovoltaic support is composed of foundation piles, longitudinal frames, bridges, support beams, etc. After the support is assembled, the inclination angle of the photovoltaic module is fixed at a fixed angle, but this fixed angle ...

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Problems solved by technology

[0003] As disclosed in CN 202651135 U, a one-piece photovoltaic support is composed of foundation piles, longitudinal frames, bridges, support beams, etc. After the support is assembled, the inclination angle of the photovoltaic module is fixed at a fixed angle, but this fixed angle The solar energy utilization efficiency of photovoltaic modules is very low because of the low solar energy utilization efficiency of photovoltaic modules. The reason is that the inclination angle of direct sunlight in each season is changing, especially in summer and winter. The change of the direct angle and the inclination angle of the photovoltaic solar cell module cannot be changed accordingly, which will lead to the reduction of the photovoltaic radiation received by the solar panel of the photovoltaic system, the reduction of the total power generation efficiency, and the idle resources

[0004] In order to make up for the shortcomings of the above-mentioned fixed brackets, some adjustable or sun-tracking photovoltaic brackets that can adjust the angle of the photovoltaic system have appeared in recent years, such as a photovoltaic bracket device disclosed in CN 102891199 A, which can be adjusted through its connecting plate The shaft adjusts the angle of the solar cell panel, but this bracket can only adjust the angle of a single or single row of solar cell components, but cannot realize the simultaneous adjustment of the angle of a large photovoltaic system composed of multiple rows of solar cell components. In addition, for The sun-tracking photovoltaic bracket also moves with the angle of the sun at any time, so the mechanical system is easily damaged, and the adjustment accuracy is often affected

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