Anti-typhoon cable net structure flexible support

Abstract

The utility model discloses a platform-resistant flexible support with a cable net structure, and relates to the technical field of photovoltaic supports, the platform-resistant flexible support comprises a plurality of groups of transverse assembly cables and a plurality of groups of longitudinal assembly cables, each transverse assembly cable comprises a pair of first side frames arranged along the east-west direction, a plurality of middle reinforcing frames are arranged between the pair of first side frames, a pair of anchor piles is arranged on the outer side of the first side frame, a first stay cable is installed between the anchor piles and the first side frame, and an installation cable used for fixing a photovoltaic panel is installed on the first side frame and the middle reinforcing frame jointly; the longitudinal assembly cable comprises a pair of second side frames arranged in the north-south direction, and a middle connecting frame is installed between the pair of second side frames. According to the utility model, the transverse assembly cable and the longitudinal assembly cable are arranged, and the double-curvature coupling damping mechanism of the longitudinal assembly cable is matched with the asymmetric prestress tensioning system of the transverse assembly cable, so that the dispersion of wind load pressure can be realized, and the wind resistance effect of the bracket is improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, and in particular to a flexible support with a typhoon-resistant cable net structure. Background Technology

[0002] As global demand for renewable energy continues to increase, the scale of photovoltaic (PV) system installations is also expanding. Traditional PV systems often face significant challenges in areas with strong winds, particularly coastal or open areas, where wind loads frequently cause structural instability and reduced power generation efficiency in PV modules. Existing PV support systems are ineffective at resisting strong winds and struggle to effectively distribute wind loads. During typhoons and other strong winds, stress concentration on the windward side is severe, leading to significant vibrations and even displacement of the PV panels under wind pressure. The support structure is also easily damaged, affecting the overall safe operation of the PV system and significantly increasing maintenance costs. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a typhoon-resistant cable net structure flexible support, which solves the technical problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a typhoon-resistant cable net structure flexible support, comprising multiple sets of horizontal component cables and multiple sets of longitudinal component cables. The horizontal component cables include a pair of first side frames arranged in an east-west direction. Multiple central reinforcement frames are provided between the pair of first side frames, and a pair of anchor piles are provided on the outer side of the first side frames. A first inclined cable is installed between the anchor piles and the first side frames. An installation cable for fixing photovoltaic panels is installed on both the first side frames and the central reinforcement frames.

[0005] The longitudinal cable assembly includes a pair of second side frames arranged in a north-south direction, a central connecting frame installed between the pair of second side frames, an anchorage provided on the outer side of the second side frames, and a second inclined cable installed between the second side frames and the anchorage. A load-bearing cable and a damping stabilizing cable are jointly installed on the second side frames and the central connecting frame, and multiple trusses for fixing the cable are jointly installed on the load-bearing cable and the damping stabilizing cable.

[0006] Furthermore, the installation cable is horizontally positioned, the load-bearing cable is concave arc-shaped, and the damping stabilizing cable is convex arc-shaped.

[0007] Furthermore, the load-bearing cable and the installation cable form a grid structure orthogonally, and the sag of the load-bearing cable is set to 2%-5% of the span of the load-bearing cable.

[0008] Furthermore, the damping stabilizing cable is provided with multiple counterweights, the mass of which gradually decreases from the middle to both ends.

[0009] Furthermore, the diameter of the mounting cables on both the north and south sides is increased by 20% to 30%.

[0010] Furthermore, the load-bearing cable and the damping stabilizing cable are arranged in a coplanar manner.

[0011] By employing the above technical solution, this utility model provides a typhoon-resistant cable net structure flexible support, which has at least the following beneficial effects:

[0012] 1. This utility model, by setting up horizontal and vertical component cables, and the double curvature coupling damping mechanism of the vertical component cables combined with the asymmetric prestressing tensioning system of the horizontal component cables, can achieve the dispersion of wind load pressure and improve the wind resistance of the support.

[0013] 2. By reinforcing the installation cables on the north and south sides, this utility model can enhance the wind resistance of the support edge area, avoid concentrated wind load damage, and further improve the wind resistance of the support. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 for Figure 1 The enlarged view at point A is shown below;

[0017] Figure 3 for Figure 1 The enlarged view at point B is shown below;

[0018] Figure 4 This is a schematic diagram of the longitudinal cable structure of this utility model.

[0019] In the diagram: 1. Horizontal cable assembly; 101. First side frame; 102. Central reinforcement frame; 103. Anchor pile; 104. First stay cable; 105. Installation cable; 2. Longitudinal cable assembly; 201. Second side frame; 202. Central connecting frame; 203. Anchor; 204. Second stay cable; 205. Load-bearing cable; 206. Damping stabilizing cable; 207. Truss; 208. Counterweight. 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] Existing photovoltaic support systems are not effective in resisting strong winds and cannot effectively distribute wind loads. When encountering strong winds such as typhoons, the stress concentration on the windward side is quite severe. Under the action of wind pressure, the photovoltaic panels are prone to large vibrations or even displacement and loosening, and the support structure is also easily damaged, which in turn affects the overall safe operation of the photovoltaic system and significantly increases maintenance costs.

[0022] Example 1

[0023] To address the aforementioned defects in photovoltaic mounting systems during use, please refer to [link / reference needed]. Figures 1-4This utility model provides a typhoon-resistant cable net structure flexible support that can actively disperse wind load pressure and significantly improve typhoon resistance. The flexible support is based on multiple sets of horizontal cable components 1 and multiple sets of longitudinal cable components 2. The horizontal cable components 1 include a pair of first side frames 101 arranged in an east-west direction. Multiple central reinforcement frames 102 are arranged between the pair of first side frames 101, and a pair of anchor piles 103 are arranged on the outer side of each first side frame 101. A first inclined cable 104 is installed between the anchor piles 103 and the first side frame 101 to improve the stability of the first side frame 101. Mounting cables 105 for fixing photovoltaic panels are installed on both the first side frame 101 and the central reinforcement frames 102. The longitudinal cable components 2 include a pair of second side frames 201 arranged in a north-south direction. A central connecting frame 202 is installed between the pair of second side frames 201, and anchors 203 are arranged on the outer side of each second side frame 201. A second stay cable 204 is installed between the two sides to improve the stability of the second side frame 201. The second side frame 201 and the middle connecting frame 202 are jointly equipped with a load-bearing cable 205 and a damping stabilizing cable 206. Multiple trusses 207 for fixing the installation cable 105 are jointly installed on the load-bearing cable 205 and the damping stabilizing cable 206. The prestress of the windward cable section of the installation cable 105 is 1.1 to 1.3 times the standard tension value, and the prestress of the leeward cable section is 0.8 to 1 times the standard tension value, forming an asymmetric prestressing tensioning system. The high prestress windward side increases the cross-sectional stiffness and suppresses wind-induced vibration, while the low prestress leeward side retains moderate deformation capacity and dissipates wind vibration energy through elastic displacement. Thus, the wind load pressure can be dispersed through the difference in prestress, thereby improving the wind resistance of the support. When installing this support system in typhoon-prone areas, the annual maximum probability typhoon wind direction angle can be determined based on meteorological data. During construction, the entire support system can be rotated ±15° for installation, which reduces the projected area of ​​the support system's windward side, thereby reducing the impact of wind load on the support system and improving its overall typhoon resistance. During installation, hydraulic jacks are first used to synchronously tension the installation cable 105 to 70% of the design prestress value. After standing for 48 hours to ensure that the creep rate of the installation cable 105 is less than 5%, the installation cable 105 is tensioned a second time to 100% of the design prestress value. This avoids uneven cable force or local overstress problems caused by one-time tensioning, ensuring the long-term stability of the installation cable 105 under stress, and further ensuring the stability of the photovoltaic panel.

[0024] To enhance the overall structural rigidity of the support structure, the mounting cable 105 is horizontally positioned, the load-bearing cable 205 is concave, and the damping stabilizing cable 206 is convex. The concave design of the load-bearing cable 205 restricts the vertical displacement of the mounting cable 105, while the damping stabilizing cable 206 forms an opposite arc to the load-bearing cable 205. Multiple counterweights 208 are mounted on the damping stabilizing cable 206, which achieves a damping effect through these counterweights, forming a double-curvature coupled damping mechanism that effectively suppresses the vibration of the mounting cable 105. Furthermore, the mass of the counterweight 208 gradually decreases from the middle to both ends. The gradient mass distribution of the counterweight 208 can break the consistency of the resonance frequency, avoid overall resonance, and improve the dynamic stability of the structure in typhoons. The load-bearing cable 205 and the installation cable 105 orthogonally form a grid structure, and the sag of the load-bearing cable 205 is set to 2%-5% of the span of the load-bearing cable 205. The transverse and longitudinal component cables are orthogonally gridded and combined with two sets of stay cables to form a three-dimensional spatial force network, which can achieve efficient load transfer and balance.

[0025] Example 2

[0026] Since the southernmost and northernmost sides of the entire support structure are prone to bearing large wind loads, targeted reinforcement is required to ensure the stability of these parts. Therefore, the diameter of the installation cables 105 on the north and south sides can be increased by 20% to 30%, or double-layer installation cables 105 can be used for reinforcement. The number of reinforcement rows is set to 1 to 3 rows, which can enhance the wind resistance of the edge area of ​​the support structure and avoid concentrated wind load damage.

[0027] When used in low-latitude regions, the solar radiation is almost direct year-round in these regions, so the difference in light reception efficiency between flat-laid and tilted installations is small. Therefore, when installing in low-latitude regions, the load-bearing cable 205 and the damping stabilizing cable 206 can be arranged in a coplanar manner. This allows the photovoltaic panels to be installed flat, reducing the spacing between adjacent photovoltaic arrays, minimizing shading, and also reducing manufacturing costs.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "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 process, method, article, or apparatus.

[0029] 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 flexible stent of the anti-tube type cable net structure, characterized by: The application relates to a photovoltaic module, which comprises a plurality of groups of transverse component cables (1) and a plurality of groups of longitudinal component cables (2), wherein the transverse component cables (1) comprise a pair of first side frames (101) arranged in the east-west direction, a plurality of middle reinforcing frames (102) are arranged between the pair of first side frames (101), a pair of anchor piles (103) are arranged on the outer sides of the first side frames (101), first inclined cables (104) are arranged between the anchor piles (103) and the first side frames (101), and mounting cables (105) for fixing photovoltaic panels are arranged on the first side frames (101) and the middle reinforcing frames (102) in common; the longitudinal component cables (2) comprise a pair of second side frames (201) arranged in the south-north direction, a middle connecting frame (202) is arranged between the pair of second side frames (201), anchor devices (203) are arranged on the outer sides of the second side frames (201), second inclined cables (204) are arranged between the second side frames (201) and the anchor devices (203), load-bearing cables (205) and damping stabilizing cables (206) are arranged on the second side frames (201) and the middle connecting frame (202) in common, and a plurality of trusses (207) for fixing the mounting cables (105) are arranged on the load-bearing cables (205) and the damping stabilizing cables (206) in common.

2. The flexible stent of claim 1, wherein: The mounting cables (105) are arranged horizontally, the load-bearing cables (205) are arranged in a concave arc shape downwards, and the damping stabilizing cables (206) are arranged in a convex arc shape upwards.

3. The flexible stent of claim 1, wherein: The load-bearing cables (205) and the mounting cables (105) are orthogonal to form a grid structure, and the sag of the load-bearing cables (205) is arranged to be 2%-5% of the span of the load-bearing cables (205).

4. The flexible stent of claim 1, wherein: A plurality of counterweights (208) are arranged on the damping stabilizing cables (206), and the mass of the counterweights (208) gradually decreases from the middle to both ends.

5. The flexible stent of claim 1, wherein: The diameters of the mounting cables (105) on the south and north sides are increased by 20%-30%.

6. The flexible stent of claim 1, wherein: The load-bearing cables (205) and the damping stabilizing cables (206) are arranged in a coplanar manner.

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