Cable structure photovoltaic support system

Abstract

The utility model discloses a cable structure photovoltaic support system, which is applied to the technical field of photovoltaic support systems, and is characterized in that the cable structure photovoltaic support system comprises a first cable structure support system and a second cable structure support system which is extended behind the first cable structure support system; the first cable structure supporting system and the second cable structure supporting system each comprise at least two fixing beams arranged in the X direction and a plurality of fish-bellied cable trusses which are arranged in the length direction of the fixing beams and fixedly connected between the adjacent fixing beams in a bridging mode in the direction perpendicular to the X direction. A plurality of photovoltaic assemblies are evenly installed on the fish-bellied cable truss in the X direction, the span between the adjacent fixing beams is L, and the adjacent first cable structure supporting systems and the second cable structure supporting systems or the adjacent second cable structure supporting systems are arranged in a staggered or stepped staggered mode. The utility model has the technical effects of good stability and low construction and reconstruction cost.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic support systems, in particular to a cable-structured photovoltaic support system. Background Art

[0002] At present, the photovoltaic industry generally uses cable structures as the main load-bearing structures. The cable structures serve as flexible supports, and photovoltaic modules are installed on the cable structures. Since the cable structures are usually set as flexible structures, wind vibration effects will occur under the action of strong wind loads. The cable structures are prone to instability under the action of wind vibration, resulting in large deformation of the cable structures, which in turn causes hidden cracks and damage to the cable structures and photovoltaic modules.

[0003] At present, a Chinese invention with the announcement number CN116743037B discloses a cable-structured photovoltaic flexible bracket, including a support frame and a photovoltaic module. The support frame is provided with multiple groups of mounting modules for installing photovoltaic modules, support modules for fixing the mounting modules and truss modules for connecting multiple groups of the mounting modules; multiple groups of the mounting modules are arranged side by side in the horizontal direction, and the mounting modules include upper cables, lower cables and load-bearing cables; the photovoltaic module is installed between the upper cables and the lower cables, and the load-bearing cables are located below the lower cables and pass through the truss modules.

[0004] The existing utility model further supports the photovoltaic modules by setting load-bearing cables, and limits the positions of the upper cables and the lower cables respectively by the load-bearing cables and truss modules so that the truss modules can control the relative deformation of the upper cables and the lower cables under the action of wind loads, so that the two adjacent groups of truss modules will not collide under wind loads, thereby enhancing the overall stability of the installed modules; however, on the one hand, the load-bearing cables and truss modules can only reinforce the structural stability along the length direction of the load-bearing cables, and lack support for wind loads along the direction perpendicular to the length direction of the load-bearing cables, which can easily cause the truss modules to swing back and forth and cause damage to the photovoltaic modules and truss modules; on the other hand, the construction of photovoltaic projects nowadays is extremely sensitive to cost control. For photovoltaic projects that have been completed or are about to be expanded, how to ensure the stability of the newly built photovoltaic system while being able to transform the completed photovoltaic system and reasonably control costs is an urgent problem to be solved in this field. Utility Model Content

[0005] The purpose of the utility model is to provide a cable-structured photovoltaic support system, which has the advantages of good stability and low construction and renovation costs.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a cable structure photovoltaic support system, comprising a first cable structure support system and a second cable structure support system expanded thereafter; the first cable structure support system and the second cable structure support system both comprise at least two fixed beams arranged along the X direction and a plurality of fish-belly cable trusses arranged along the length direction of the fixed beams and fixedly connected between adjacent fixed beams perpendicular to the X direction; a plurality of photovoltaic modules are evenly installed on the fish-belly cable trusses along the X direction; the span between adjacent fixed beams is L; adjacent first cable structure support systems and second cable structure support systems or adjacent second cable structure support systems are staggered or stepped.

[0007] The present invention is further configured as follows: the fish-belly cable truss includes at least two upper chords arranged along the X direction and at least one lower chord arranged in a broken line shape, and also includes at least one set of web rod assemblies connecting the upper chords and the lower chords, and the web rod assembly is located in a vertical plane.

[0008] The present invention is further configured as follows: N web rod assemblies are evenly distributed in the span space of a single fish-bellied cable truss, thereby dividing the single fish-bellied cable truss into N+1 equidistant intervals, and the spacing of each interval is L / (N+1); several fish-bellied cable trusses in the same group are interconnected based on a web rod cross-linking structure and extended to adjacent fixed beams based on a rigid constraint structure; the offset spacing between adjacent first cable structure support systems and second cable structure support systems or between adjacent second cable structure support systems is between L / (N+1) and LL / (N+1).

[0009] The present invention is further configured as follows: N is an odd number, and the offset spacing between adjacent first cable structure support systems and second cable structure support systems or between adjacent second cable structure support systems is L / 2.

[0010] The present invention is further configured as follows: the web member assembly is triangular in structure, including a first web member and a second web member for connecting the upper chord and the lower chord respectively, and a third web member for connecting the upper chord, the hinge point between the first web member and the second web member is a first hinge point, the hinge points between the third web member and the first web member and the second web member are respectively a second hinge point and a third hinge point, the web member cross-linking structure includes a first strut and a second strut, the first strut and the second strut are in a cross structure or a triangular structure, when in a cross structure, the first strut and the second strut are used to connect the first hinge point and the third hinge point and the first hinge point and the second hinge of adjacent web member assemblies; when in a triangular structure, the first strut and the second strut are used to connect the first hinge point and the third hinge point with the second hinge point of the adjacent web member assembly.

[0011] The present invention is further configured as follows: the web cross-linking structure further comprises a third strut for connecting the first hinge points of adjacent web components.

[0012] The present invention is further configured as follows: the rigid constraint structure is triangular in structure, and the fixed beam is connected to the first hinge point and the second hinge point based on a rigid connector, a damper, or a combination of a rigid connector and a damper.

[0013] The present invention is further configured such that: the rigid connector is connected to the fixed beam in a fixed manner, an articulated manner, or a combination of a fixed manner and an articulated manner.

[0014] The present invention is further configured as follows: the number of fixed beams of the first cable structure support system and the second cable structure support system is equal and the spacing L between adjacent fixed beams is equal; the length of the fixed beam of the second cable structure support system is not more than 30 meters.

[0015] In summary, the present invention has the following beneficial effects:

[0016] 1. By arranging adjacent first and second cable structure support systems in a staggered or stepped manner, and arranging a plurality of fish-bellied cable trusses in the same group to be interconnected based on a web cross-linking structure and to be extended to adjacent fixed beams based on a rigid constraint structure, the web cross-linking structure realizes interconnection of the web members of the fish-bellied cable trusses in the same group with the web members of adjacent fish-bellied cable trusses through a combination of a first strut, a second strut, and a third strut. By coupling the degrees of freedom of the web members of the nodes of the adjacent fish-bellied cable trusses in different forms, the web member system is cross-linked to achieve displacement coordination. At the same time, the interconnected web member assemblies are connected to the fixed beams of the adjacent second cable structure support system through a rigid constraint structure to constrain the degrees of freedom of the web cross-linking structure. When subjected to wind loads perpendicular to the fixed beams, the web cross-linking structure and the rigid constraint structure realize the use of the fixed beams as rigid constraints to suppress the dynamic and static responses of the interconnected web member structures and the fish-bellied cable trusses in extreme weather, thereby reducing the degree of fore-and-aft swaying of the fish-bellied cable trusses and increasing stability.

[0017] 2. The first cable structure support system that has been built is reinforced by the second cable structure support system that is about to be expanded or newly expanded. While ensuring the stability of the newly expanded second cable structure support system, the stability of the first cable structure support system is improved, the cost of construction and renovation is reduced, and the way is paved for the construction and renovation of cable structure support systems with larger spans. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 1 is a schematic structural diagram of the fish-belly cable truss of Example 1;

[0019] Figure 2 This is a schematic structural diagram of the staggered arrangement of the first cable structure support system and the second cable structure support system in Example 1;

[0020] Figure 3 This is a schematic structural diagram of a first cable structure support system and a second cable structure support system in Example 5, in which the first cable structure support system and the second cable structure support system are arranged in a stepped staggered manner;

[0021] Figure 4 1 is a schematic structural diagram of the cross-linked structure of the web in Example 1;

[0022] Figure 5 3 is a schematic structural diagram of the cross-linked structure of the web of Example 3;

[0023] Figure 6 Schematic diagram of the cross-linked structure of the web of Examples 3 and 4;

[0024] Figure 7 is a structural schematic diagram of the rigid constraint structure of Example 1;

[0025] Figure 8 is a structural schematic diagram of the rigid constraint structure of Example 1;

[0026] Figure 9 It is a structural diagram of the rigid constraint structure of Example 1.

[0027] Figure numerals: 1. First cable structure support system; 2. Second cable structure support system; 3. Fixed beam; 4. Fish-belly cable truss; 41. Upper chord; 42. Lower chord; 43. Web member assembly; 44. First web member; 45. Second web member; 46. Third web member; 47. First hinge point; 48. Second hinge point; 49. Third hinge point; 5. Photovoltaic assembly; 6. Web member cross-linking structure; 61. First strut; 62. Second strut; 63. Third strut; 7. Rigid constraint structure; 71. Rigid connector; 72. Damper. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings.

[0029] Example:

[0030] refer to Figure 1 A cable-structured photovoltaic support system includes a first cable-structured support system 1 and a second cable-structured support system 2 that is subsequently expanded. The first cable-structured support system 1 and the second cable-structured support system 2 each include at least two fixed beams 3 arranged along the X direction and a plurality of fish-belly cable trusses 4 arranged along the length direction of the fixed beams 3 and fixedly connected between adjacent fixed beams 3 perpendicular to the X direction. A plurality of photovoltaic modules 5 are evenly installed on the fish-belly cable trusses 4 along the X direction. The X direction is determined by factors such as the climate and light of the installation site, so as to minimize the impact of weather factors on the photovoltaic modules 5 while ensuring the maximum photovoltaic power generation efficiency. The span between adjacent fixed beams 3 is L, and the adjacent first cable-structured support systems 1 and the second cable-structured support systems 2 or the adjacent second cable-structured support systems 2 are staggered. In this embodiment, the number of fixed beams 3 of the first cable structure support system 1 and the second cable structure support system 2 is equal and the spacing L between adjacent fixed beams 3 is equal. The length of the fixed beams 3 of the second cable structure support system 2 is not more than 30 meters, thereby reducing the construction cost of the second cable structure support system 2 to be expanded later and ensuring the stability between the first cable structure support system 1 and the second cable structure support system 2.

[0031] Specifically, the fish-bellied cable truss 4 includes at least two upper chords 41 arranged along the X direction and at least one lower chord 42 arranged in a broken line shape, and also includes at least one group of web rod assemblies 43 connecting the upper chords 41 and the lower chords 42. The web rod assemblies 43 are located in the vertical plane. N web rod assemblies 43 are evenly distributed in the span space of a single fish-bellied cable truss 4, thereby dividing the single fish-bellied cable truss 4 into N+1 equidistant intervals, and the spacing of each interval is L / (N+1). Several fish-bellied cable trusses 4 in the same group are interconnected based on the web rod cross-linking structure 6 and extended to adjacent fixed beams 3 based on the rigid constraint structure 7. The offset spacing between adjacent first cable structure support systems 1 and second cable structure support systems 2 or between adjacent second cable structure support systems 2 is between L / (N+1) and LL / (N+1).

[0032] Specifically, the web member assembly 43 has a triangular structure, including a first web member 44 and a second web member 45 for connecting the upper chord 41 and the lower chord 42 respectively, and a third web member 46 for connecting the upper chord 41. The hinge point between the first web member 44 and the second web member 45 is a first hinge point 47, and the hinge points between the third web member 46 and the first web member 44 and the second web member 45 are a second hinge point 48 and a third hinge point 49 respectively. The web member cross-linking structure 6 includes a first strut 61 and a second strut 62. The first strut 61 and the second strut 62 have a cross structure. The first strut 61 and the second strut 62 are used to connect the first hinge point 47 and the third hinge point 49 of adjacent web member assemblies 43 and the first hinge point 47 and the second hinge.

[0033] Specifically, the rigid constraint structure 7 is triangular in structure, and the fixed beam 3 is connected to the first hinge point 47 and the second hinge point 48 based on a rigid connector 71, a damper 72, or a combination of a rigid connector and a damper 72. The rigid connector 71 is connected to the fixed beam 3 based on a fixed manner, a hinged manner, or a combination of fixed and hinged manner.

[0034] Example 2:

[0035] Compared with Example 1, in this embodiment, N is an odd number, and the offset spacing between adjacent first cable structure support systems 1 and second cable structure support systems 2 or between adjacent second cable structure support systems 2 is L / 2. By connecting the web rod assemblies 43 located in the middle position of the same group of fish-bellied cable trusses 4 through the web rod cross-linking structure 6, the support effect of the middle part of the fish-bellied cable truss 4 is ensured, and compared with other web rod assemblies 43, it can provide better support force and stability for the fish-bellied cable truss 4.

[0036] Example 3:

[0037] Compared with Example 1, in this embodiment, the web cross-linking structure 6 includes a first strut 61 and a second strut 62. The first strut 61 and the second strut 62 are triangular in structure. The first strut 61 and the second strut 62 are used to connect the first hinge point 47 and the third hinge point 49 with the second hinge point 48 of the adjacent web assembly 43. The web cross-linking structure 6 also includes a third strut 63 for connecting the first hinge point 47 of the adjacent web assembly 43.

[0038] Example 4:

[0039] Compared with Example 1, in this embodiment, the web cross-linking structure can also be further provided with a third strut 63 for connecting the first hinge points 47 of adjacent web assemblies 43. The third strut 63 increases the degree of displacement coordination between the web assemblies 43 of adjacent fish-belly cable trusses 4, thereby further improving stability.

[0040] Example 5:

[0041] Compared with embodiments 1-4, in this embodiment, adjacent first cable structure support systems 1 and second cable structure support systems 2 or adjacent second cable structure support systems 2 are staggered in a stepped manner.

[0042] Brief description of the usage process: The web rod assemblies 43 of adjacent fish-bellied cable trusses 4 are interconnected through the web rod cross-linking structure 6 to achieve coordinated displacement. At the same time, the interconnected web rod assemblies 43 are connected to the fixed beam 3 of the adjacent second cable structure support system 2 through the rigid constraint structure 7 to suppress the dynamic and static response of the interconnected web rod structure and the fish-bellied cable trusses 4 under extreme weather conditions, thereby reducing the degree of forward and backward shaking of the fish-bellied cable trusses 4.

[0043] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A cable structure photovoltaic support system, comprising a first cable structure support system (1) and a second cable structure support system (2) expanded thereafter; characterized in that: The first cable structure support system (1) and the second cable structure support system (2) both comprise at least two fixed beams (3) arranged along the X direction and a plurality of fish-belly cable trusses (4) arranged along the length direction of the fixed beams (3) and fixedly connected between adjacent fixed beams (3) perpendicular to the X direction. A plurality of photovoltaic modules (5) are evenly installed on the fish-belly cable trusses (4) along the X direction. The adjacent first cable structure support systems (1) and the second cable structure support systems (2) or the adjacent second cable structure support systems (2) are staggered or staggered. The length of the fixed beams (3) of the second cable structure support system (2) is not greater than the length of the fixed beams (3) of the first cable structure support system (1).

2. A cable structure photovoltaic support system according to claim 1, characterized in that: The fish-belly cable truss (4) comprises at least two upper chords (41) arranged along the X direction and at least one lower chord (42) arranged in a broken line shape, and also comprises at least one set of web rod assemblies (43) connecting the upper chords (41) and the lower chords (42), wherein the web rod assembly (43) is located in a vertical plane.

3. A cable structure photovoltaic support system according to claim 2, characterized in that: The span between adjacent fixed beams (3) is L, and N web rod assemblies (43) are evenly distributed in the span space of a single fish-bellied cable truss (4), thereby dividing the single fish-bellied cable truss (4) into N+1 equidistant intervals, and the spacing of each interval is L / (N+1). Several fish-bellied cable trusses (4) in the same group are connected to each other based on the web rod cross-linking structure (6) and are extended to the adjacent fixed beams (3) based on the rigid constraint structure (7). The offset spacing between adjacent first cable structure support systems (1) and second cable structure support systems (2) or between adjacent second cable structure support systems (2) is between L / (N+1) and LL / (N+1).

4. A cable structure photovoltaic support system according to claim 3, characterized in that: N is an odd number, and the offset spacing between adjacent first cable structure support systems (1) and second cable structure support systems (2) or between adjacent second cable structure support systems (2) is L / 2.

5. The cable structure photovoltaic support system according to claim 3, characterized in that: The web member assembly (43) is triangular in structure, comprising a first web member (44) and a second web member (45) for connecting the upper chord (41) and the lower chord (42) respectively, and a third web member (46) for connecting the upper chord (41), the hinge point between the first web member (44) and the second web member (45) is a first hinge point (47), the hinge points between the third web member (46) and the first web member (44) and the second web member (45) are a second hinge point (48) and a third hinge point (49), respectively, the web member cross-linking structure (6) comprises a first strut ( 61) and a second strut (62), the first strut (61) and the second strut (62) are in a cross-type structure or a triangular structure. When in a cross-type structure, the first strut (61) and the second strut (62) are used to connect the first hinge point (47) and the third hinge point (49) of the adjacent web assembly (43) and the first hinge point (47) and the second hinge point; when in a triangular structure, the first strut (61) and the second strut (62) are used to connect the first hinge point (47) and the third hinge point (49) to the second hinge point (48) of the adjacent web assembly (43).

6. A cable structure photovoltaic support system according to claim 5, characterized in that: The web cross-linking structure (6) further comprises a third strut (63) for connecting the first hinge points (47) of adjacent web assemblies (43).

7. A cable structure photovoltaic support system according to claim 5 or 6, characterized in that: The rigid constraint structure (7) is triangular in structure and connects the fixed beam (3) with the first hinge point (47) and the second hinge point (48) based on a rigid connector (71), a damper (72) or a combination of a rigid connector and a damper (72).

8. The cable structure photovoltaic support system according to claim 7, characterized in that: The rigid connector (71) is connected to the fixed beam (3) based on a fixed mode, an articulated mode, or a combination of a fixed mode and an articulated mode.

9. The cable structure photovoltaic support system according to claim 1, characterized in that: The number of the fixed beams (3) of the first cable structure support system (1) and the second cable structure support system (2) is equal, and the spacing L between adjacent fixed beams (3) is equal, and the length of the fixed beams (3) of the second cable structure support system (2) is not more than 30 meters.

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