Large-span photovoltaic flexible support

Abstract

The invention relates to the technical field of photovoltaic supports, in particular to a large-span photovoltaic flexible support which comprises two sets of first supporting assemblies which are oppositely arranged in the first direction and used for installing assembly fixing cables, and each set of first supporting assembly comprises a first truss with the length extending in the second direction and a second truss with the length extending in the second direction. The first connecting structures are arranged on the first truss at intervals in the second direction, and the first connecting structures are used for fixing the ends of assembly fixing cables. The side inclined supporting rods are adopted to replace cable-stayed steel strands to support the side stand columns, a rigid structure is adopted to replace a flexible structure to support the side stand columns, the supporting stability is more reliable, and due to the fact that the side inclined supporting rods are arranged in the clearance area and are arranged in the first direction, the side stand columns can be supported more stably. The side inclined supporting rod is just located on the connecting line of the side stand columns of the two first supporting assemblies, so that the side inclined supporting rod cannot make contact with the project ground outside the clearance area, and the occupied area is smaller.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic brackets, and in particular to a large-span photovoltaic flexible bracket. Background Art

[0002] like Figure 1 As shown, the existing photovoltaic flexible bracket mainly includes relatively arranged side columns, main cables connected to the two side columns at both ends, and components installed on the upper ends of the main cables. There is a clearance area below the components. Since the span of the main cables is large (usually tens of meters or even hundreds of meters), the load borne by the side columns will be large. In order to improve the supporting stability of the side columns, in the prior art, each side column is provided with an inclined steel strand, and a side anchor pile foundation is provided at one end of the inclined steel strand to improve the pull-out resistance of the side columns.

[0003] However, when there is a high clearance and the side anchor pile foundation is set at 45° outward, more project land will be occupied. Especially when it is necessary to set up photovoltaic flexible brackets above the greenhouse, the rows of inclined steel strands will also block the entrance and exit of the greenhouse, making it impossible to pull the inclined steel strands, which limits the use conditions of the existing photovoltaic flexible brackets. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a large-span photovoltaic flexible bracket to solve the technical problem that the existing photovoltaic flexible bracket not only occupies additional project land when setting the inclined steel strands, but also affects the normal entry and exit of the clear area.

[0005] Based on the above purpose, the present invention provides a large-span photovoltaic flexible bracket, comprising:

[0006] Two groups of first support assemblies for mounting assembly fixing cables are arranged opposite to each other along a first direction, each group of the first support assemblies comprising:

[0007] a first truss having a length extending in a second direction;

[0008] A plurality of first connection structures are arranged on the first truss at intervals along the second direction, the first connection structures are used to fix the ends of the component fixing cables, so that the component fixing cables are arranged at intervals along the second direction and matched in pairs, thereby forming a mounting base for mounting photovoltaic components;

[0009] Relative to the two side columns arranged at the ends of the first truss, the side columns and the mounting base surface jointly enclose a clearance area for isolating the photovoltaic assembly from the ground;

[0010] A side diagonal support rod is provided in the clearance area and arranged along a first direction to provide an oblique supporting force for the side column.

[0011] As a preferred technical solution of the present invention, the large-span photovoltaic flexible bracket also includes:

[0012] A first flange plate provided at one end of the side diagonal brace close to the side column;

[0013] A second flange plate is provided at one end of the side diagonal brace away from the side column, and the second flange plate is in contact with the ground;

[0014] A third flange plate provided at a corresponding position of the side column and matched with the first flange plate;

[0015] A fourth flange plate is arranged at the bottom end of the side column, and the fourth flange plate is in contact with the ground. The first flange plate, the second flange plate, the third flange plate and the fourth flange plate are all connected with matching bolt fasteners.

[0016] As a preferred technical solution of the present invention, the side diagonal brace is welded and fixed to the side column at the joint, a first pile foundation is arranged at the bottom end of the side column, a base block is arranged at the bottom end of the side diagonal brace, and two second pile foundations are connected to the bottom end of each base block.

[0017] As a preferred technical solution of the present invention, the component fixing cable is provided with a fixing part for installing the photovoltaic component, and the fixing part includes: an upper clamping plate and a lower clamping plate bolted to the upper clamping plate, the lower clamping plate forms a clamping groove for clamping the component fixing cable between the upper clamping plates, and the upper clamping plate is bolted to the photovoltaic component.

[0018] As a preferred technical solution of the present invention, the first truss comprises:

[0019] A first chord rod extending axially along a second direction, wherein there are three first chord rods, and first connecting planes are formed between two adjacent first chord rods;

[0020] A second chord rod used for fixing the second chord rod adjacent to the first chord rod, wherein the second chord rods are mutually enclosed to form a right triangle fixing frame, wherein the right triangle fixing frame has a plurality of pieces and is arranged at intervals along the axial direction of the first chord rod;

[0021] A plurality of first web members are arranged in the first connection plane, and two ends of the first web members are respectively fixed to two first chord members in the first connection plane, and adjacent first web members are staggered to form a first V-shaped fixing frame, so that three first chord members are fixed by the right triangle fixing frame and the first V-shaped fixing frame.

[0022] As a preferred technical solution of the present invention, the large-span photovoltaic flexible bracket includes:

[0023] Horizontal longitudinal stabilizing components arranged at intervals along a first direction and used to connect multiple rows of component fixing cables;

[0024] Vertical wind-resistant components are arranged at intervals along the first direction and are used to connect the horizontal longitudinal stabilizing components.

[0025] As a preferred technical solution of the present invention, the horizontal longitudinal stabilization component includes a support rod, which has multiple support rods and is hinged and fixed to each other at the head and tail to form a Z-shaped frame, the Z-shaped frame extends along the second direction and is connected to all component fixing cables, and the bottom end of the Z-shaped frame is connected to a transverse connecting rod, and the transverse connecting rod is used to limit the rotational freedom between adjacent support rods; the vertical wind-resistant component includes a vertical connecting rod one end of which is connected to the Z-shaped frame, and the other end of the vertical connecting rod is connected to a third pile foundation for inserting into the ground.

[0026] As a preferred technical solution of the present invention, the large-span photovoltaic flexible support also includes a second support assembly arranged between the two groups of first support assemblies for supporting the assembly fixing cable, the second support assembly includes a second truss and a neutral column arranged at both ends of the second truss, the neutral column is connected to a fourth pile foundation for inserting into the ground, and the second truss includes:

[0027] A third chord extending axially along the second direction, wherein there are three third chords, and second connecting planes are formed between two adjacent third chords;

[0028] A second connecting structure provided at the upper end of the third chord for fixing the assembly fixing cable;

[0029] A fourth chord rod used for fixing the third chord rod adjacent to the fourth chord rod, wherein the fourth chord rods are mutually enclosed to form an isosceles triangle fixing frame, and the isosceles triangle fixing frame has a plurality of members and is arranged at intervals along the axial direction of the third chord rod;

[0030] A plurality of second web members are arranged in the second connection plane, and two ends of the second web members are respectively fixed to two third chord members in the second connection plane, and adjacent second web members are staggered to form a second V-shaped fixing frame, so that the three third chord members are fixed by the isosceles triangle fixing frame and the second V-shaped fixing frame.

[0031] As a preferred technical solution of the present invention, the first connection structure includes:

[0032] First pillars are arranged at intervals on the upper ends of the first chords, and first low points are formed between adjacent first pillars;

[0033] An extrusion anchor is provided at the top end and the first low point of the first pillar, and is used to fix the end of the assembly fixing cable.

[0034] As a preferred technical solution of the present invention, the second connection structure includes:

[0035] Second pillars are arranged at intervals on the upper end of the third chord, and a second low point is formed between adjacent second pillars;

[0036] A clamp is arranged at the top and the second lowest point of the second pillar, and the clamp comprises: a U-shaped bolt and a support seat matched with the U-shaped bolt, and a clamping space for clamping the fixing cable of the clamping assembly is formed between the U-shaped bolt and the support seat.

[0037] Beneficial effects of the present invention: The present invention adopts side diagonal struts instead of diagonal steel strands to support side columns, and uses rigid structures instead of flexible structures to support side columns, which not only makes the supporting stability more reliable, but also because the side diagonal struts are arranged in the clearance area and are arranged along the first direction, the side diagonal struts are just located on the connecting line of the side columns of the two groups of first supporting assemblies, and thus will not touch the project site outside the clearance area, occupying a smaller area, and when a greenhouse is set in the clearance area, there will be no technical problem of affecting entry and exit of the greenhouse due to the obstruction of the diagonal steel strands. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a schematic diagram of the three-dimensional structure of a photovoltaic flexible bracket in the prior art;

[0040] Figure 2 It is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention;

[0041] Figure 3 It is a schematic diagram of the three-dimensional structure of the first truss, side columns and side braces of the present invention;

[0042] Figure 4 is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention;

[0043] Figure 5 It is a schematic diagram of the three-dimensional structure of the first truss, side columns, side diagonal braces, support rods and transverse connecting rods of the present invention;

[0044] Figure 6 It is a schematic diagram of the three-dimensional structure of the support rod and the transverse connecting rod of the present invention;

[0045] Figure 7 It is a schematic diagram of the three-dimensional structure of the second truss and the middle column of the present invention;

[0046] Figure 8 For the present invention Figure 7 Enlarged structural diagram at A in the middle.

[0047] The markings in the figure are: 1. first truss; 2. second truss; 3. component fixing cable; 4. support rod; 5. horizontal connecting rod; 6. vertical connecting rod; 7. side column; 8. side diagonal support rod; 9. center column; 10. first pile foundation; 11. first chord; 12. second chord; 13. first web member; 14. fourth flange plate; 15. second flange plate; 16. first flange plate; 17. third flange plate; 18. extrusion anchor; 19. greenhouse; 20. photovoltaic module; 21. second pile foundation; 22. fourth pile foundation; 23. fifth flange plate; 24. third chord; 25. fourth chord; 26. second web member; 27. support seat; 28. U-bolt; 29. ​​upper splint; 30. lower splint; 31. fastening bolt; 32. first pillar; 33. second pillar; 34. base block; 35. third pile foundation. DETAILED DESCRIPTION

[0048] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0049] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] like Figure 2As shown, a large-span photovoltaic flexible support comprises: two groups of first support components for installing component fixing cables 3 arranged relatively along a first direction, each group of first support components comprises: a first truss 1 with a length extending along a second direction; a plurality of first connection structures arranged on the first truss 1 at intervals along the second direction, the first connection structures being used to fix the ends of the component fixing cables 3, so that the component fixing cables 3 are arranged at intervals along the second direction and matched in pairs, thereby forming an installation base surface for installing photovoltaic components 20; two side columns 7 arranged at the ends of the first truss 1, the side columns 7 and the installation base surface jointly enclose a clearance area for isolating the photovoltaic components 20 from the ground; side diagonal braces 8 arranged in the clearance area and arranged along the first direction to provide diagonal support force to the side columns 7;

[0051] The above technical solution can prevent the occupation of additional project land when setting the side diagonal brace 8. When in use, first piles are driven on the project land and foundation concrete is poured, the side columns 7 are fixed to the concrete, and then the side diagonal brace 8 is also fixedly connected to the concrete. The component fixing cables 3 are arranged at intervals along the second direction and matched in pairs through the first connecting structure, so that every two component fixing cables 3 form an installation base surface for installing the photovoltaic components 20. The photovoltaic components 20 are installed on the installation base surface in sequence along the first direction at intervals, thereby completing the foundation installation. The side columns 7 and the installation base surface together enclose a clearance area for isolating the photovoltaic components 20 from the ground. A greenhouse 19 can be set up in the clearance area. The entrances and exits of the greenhouse 19 correspond to the side columns 7 at both ends arranged along the first direction. Since the side diagonal braces 8 are set in the clearance area and the side diagonal braces 8 are arranged along the first direction, the side diagonal braces 8 are just located on the connecting line of the side columns 7 of the two groups of first supporting assemblies, so that they will not touch the project site outside the clearance area, and will no longer occupy the space at the entrances and exits at both ends of the greenhouse 19, so that entry and exit are convenient.

[0052] like Figure 3 As shown, in this embodiment, the long-span photovoltaic flexible bracket also includes: a first flange plate 16 provided at one end of the side diagonal support rod 8 close to the side column 7; a second flange plate 15 provided at one end of the side diagonal support rod 8 away from the side column 7, the second flange plate 15 is in contact with the ground; a third flange plate 17 provided at a corresponding position of the side column 7 and matched with the first flange plate 16; a fourth flange plate 14 provided at the bottom end of the side column 7, the fourth flange plate 14 is in contact with the ground, and the first flange plate 16, the second flange plate 15, the third flange plate 17 and the fourth flange plate 14 are all connected with matching bolt fasteners;

[0053] The above technical solution can be used to detachably connect the side column 7 and the side diagonal brace 8. At the same time, the side column 7, the side diagonal brace 8 and the concrete floor are also detachable. The flange and bolt installation structure is conducive to the installation and disassembly of the side column 7 and the side diagonal brace 8, and is convenient for later maintenance.

[0054] like Figure 2 As shown, in this embodiment, the side diagonal brace 8 is welded and fixed to the side column 7 at the joint, the bottom end of the side column 7 is provided with a first pile foundation 10, the bottom end of the side diagonal brace 8 is provided with a base block 34, and the bottom end of each base block 34 is connected to two second pile foundations 21;

[0055] The above technical solution can be used to fix the side diagonal brace 8 and the side column 7 in one piece. Compared with the above-mentioned detachable connection, the structural strength is higher. At the same time, the side column 7 and the side diagonal brace 8 are respectively equipped with a first pile foundation 10 and a second pile foundation 21, which can penetrate deep into the concrete, have good pull-out resistance, and have a better effect of resisting external interference.

[0056] like Figure 7 and Figure 8 As shown, in this embodiment, the component fixing cable 3 is provided with a fixing member for installing the photovoltaic component 20, and the fixing member includes: an upper clamping plate 29 and a lower clamping plate 30 connected to the upper clamping plate 29 by bolts, and the lower clamping plate 30 forms a clamping groove for clamping the component fixing cable 3 between the upper clamping plates 29, and the upper clamping plate 29 is connected to the photovoltaic component 20 by fastening bolts 31;

[0057] The above technical solution can be used to install the photovoltaic module 20 on the module fixing cable 3. When in use, the upper clamp 29 is first connected to the photovoltaic module 20 with bolts, and then the clamping groove at the lower end of the upper clamp 29 is fitted on the upper end surface of the module fixing cable 3. The lower clamp 30 is used to fit the lower end surface of the module fixing cable 3, and the fastening bolt 31 is passed through the upper clamp 29 and the lower clamp 30 from the upper end, and then a nut is used to be screwed on the threaded end of the fastening bolt 31 from the lower end of the photovoltaic module 20. This completes the installation of one photovoltaic module 20. Refer to this step to install the remaining photovoltaic modules 20 in batches.

[0058] like Figure 3 and Figure 5As shown, in this embodiment, the first truss 1 includes: a first chord 11 extending axially along the second direction, the first chord 11 has three first chords 11, and the first connecting plane is formed between two adjacent first chords 11; a second chord 12 for fixing adjacent first chords 11, the second chords 12 are mutually enclosed to form a straight triangle fixing frame, the straight triangle fixing frame has a plurality of first web members 13 arranged at intervals along the axial direction of the first chord 11; a plurality of first web members 13 arranged in the first connecting plane, the two ends of the first web members 13 are respectively fixed to the two first chords 11 in the first connecting plane, and the adjacent first web members 13 are interlaced to form a first V-shaped fixing frame, so that the three first chords 11 are fixed by the straight triangle fixing frame and the first V-shaped fixing frame;

[0059] With the above technical solution, since the component fixing cables 3 are all fixed to the upper end of the first truss 1 along the second direction, it means that the span of the first truss 1 is larger than the span of the truss in the prior art, and the first truss 1 has only two side columns 7 for fixing. As the span increases, the load borne by the first truss 1 will be greater, so a truss with higher structural strength is required. Therefore, the first chord 11, the second chord 12 and the first web 13 are welded to form a truss structure similar to a right triangle, which can not only effectively improve the structural strength of the truss and reduce the number of pile foundations and side columns 7, but also because of the hollow design, it does not consume more steel, the weight is also lighter, and the span can be adjusted according to project requirements, further reducing the occupancy rate of the project site.

[0060] like Figure 2 , Figure 5 and Figure 6 As shown, in this embodiment, the large-span photovoltaic flexible support includes: a horizontal longitudinal stabilization component arranged at intervals along the first direction and used to connect multiple rows of component fixing cables 3; a vertical wind-resistant component arranged at intervals along the first direction and used to connect the horizontal longitudinal stabilization component; specifically, the horizontal longitudinal stabilization component includes a support rod 4, the support rod 4 has multiple and the head and tail are hinged and fixed to each other to form a Z-shaped frame, the Z-shaped frame extends along the second direction and is connected to all component fixing cables 3, and the bottom end of the Z-shaped frame is connected to a transverse connecting rod 5, and the transverse connecting rod 5 is used to limit the rotational freedom between adjacent support rods 4; the vertical wind-resistant component includes a vertical connecting rod 6 connected to the Z-shaped frame at one end, and the other end of the vertical connecting rod 6 is connected to a third pile foundation 35 for inserting into the ground;

[0061] The adoption of the above technical solution can improve the wind resistance of the photovoltaic flexible bracket. Since the flexible photovoltaic bracket is mainly installed in harsh environments such as mountains, barren slopes and woodlands to realize land transformation, the flexible photovoltaic bracket is very susceptible to environmental influences, among which the most important influence is wind force. When the wind force is strong, since the photovoltaic component 20 is a plate-like structure with a large windward accumulation, the photovoltaic component 20 is easy to swing, and may even cause the photovoltaic component 20 to separate from the component fixing cable 3. Therefore, by setting a horizontal longitudinal stabilization component and a vertical wind-resistant component, the structural strength of the photovoltaic flexible bracket can be effectively improved to avoid vibration and displacement of the photovoltaic component 20 caused by strong winds, and realize a flexible structure as the main and a rigid structure as the auxiliary, so that the photovoltaic flexible bracket takes into account the large-span adaptability to mountains, barren slopes and woodlands, as well as the structural strength of the traditional rigid photovoltaic bracket.

[0062] like Figure 7 and Figure 8 As shown, in this embodiment, the large-span photovoltaic flexible support also includes a second support assembly arranged between the two groups of first support assemblies for supporting the assembly fixing cable 3, the second support assembly includes a second truss 2 and a center column 9 arranged at both ends of the second truss 2, the center column 9 is connected to a fourth pile foundation 22 for inserting into the ground, or the center column 9 can also be detachably connected to the ground through a fifth flange plate 23, the second truss 2 includes: a third chord 24 extending axially along the second direction, the third chord 24 has three, and the adjacent third chords 24 form a second connection plane in pairs; the upper end of the third chord 24 is provided A second connection structure for fixing the assembly fixing cable 3; a fourth chord 25 for fixing adjacent third chords 24, the fourth chords 25 mutually enclosed to form an isosceles triangle fixing frame, the isosceles triangle fixing frame having a plurality of them and arranged at intervals along the axial direction of the third chord 24; a plurality of second web members 26 arranged in the second connection plane, the two ends of the second web members 26 are respectively fixed to the two third chords 24 in the second connection plane, and the adjacent second web members 26 are staggered to form a second V-shaped fixing frame, so that the three third chords 24 are fixed by the isosceles triangle fixing frame and the second V-shaped fixing frame;

[0063] The adoption of the above technical solution can further improve the support stability of the component fixing cable 3. As mentioned above, the span of the component fixing cable 3 along the first direction can usually reach tens or even hundreds of meters. Such a long component fixing cable 3 is supported only by the side columns 7 at both ends. Even if the component fixing cable 3 is tightened, as the use time increases, the middle part of the component fixing cable 3 will still have a tendency to fall, and the side columns 7 cannot withstand the load brought by so many component fixing cables 3 and photovoltaic components 20. Even if side diagonal support rods 8 are provided, the side columns 7 also have the risk of overturning. Generally speaking, this principle is similar to the principle of a clothesline. When the clothesline is long and full of clothes, the stress will be concentrated in the middle of the clothesline. As time accumulates, the middle part of the clothesline begins to fall, causing the clothesline to change from its original horizontal state. It becomes a falling arc state, so it is necessary to fix the component fixing cable 3 from the middle of it, and by arranging multiple second support assemblies between the first support assemblies along the first direction, it can prevent the component fixing cable 3 from falling due to only two ends being supported, reduce the load of the first support assembly, and prevent the first support assembly from being damaged. Compared with the right-angled triangle structure of the first truss 1 in the first support assembly, the main difference between the second truss 2 of the second support assembly is that it adopts an isosceles triangle structure, which can make the two sides of the second truss 2 evenly stressed and in a balanced state. Compared with the H-shaped structure and the rectangular structure in the prior art, the isosceles triangle structure has a spatial structure that can better resist the out-of-plane bending moment, balance the unbalanced force generated on the left and right sides, and greatly improves the in-plane bending resistance, so that its span can be increased according to project requirements.

[0064] like Figure 3 and Figure 5 As shown, in this embodiment, the first connection structure includes: first pillars 32 arranged at intervals at the upper end of the first chord 11, and a first low point is formed between adjacent first pillars 32; an extrusion anchor 18 arranged at the top end of the first pillar 32 and the first low point, and the extrusion anchor 18 is used to fix the end of the component fixing cable 3;

[0065] By adopting the above technical solution, the component fixing cable 3 can be installed on the upper end of the first truss 1, so as to tension and support the component fixing cable 3.

[0066] like Figure 7 and Figure 8 As shown, in this embodiment, the second connection structure includes: second pillars 33 arranged at intervals at the upper end of the third chord 24, and a second low point is formed between adjacent second pillars 33; a clamp arranged at the top of the second pillar 33 and the second low point, and the clamp includes: a U-shaped bolt 28 and a support seat 27 adapted to the U-shaped bolt 28, and a clamping space for clamping the fixing cable 3 of the clamping assembly is formed between the U-shaped bolt 28 and the support seat 27;

[0067] By adopting the above technical solution, the middle part of the component fixing cable 3 can be fixedly connected to the upper end of the second truss 2, and the component fixing cable 3 can be fixed to the second truss 2 by the U-bolt 28 and the support seat 27. It should be noted that the first truss 1 and the second truss 2 are respectively provided with a first support column 32 and a second support column 33, the purpose of which is to ensure that there is a height difference between adjacent component fixing cables 3 in the vertical height, so that the photovoltaic component 20 is in an inclined state, avoiding the occurrence of blind spots in light due to solar activity, and ensuring that the lighting time is maximized.

[0068] Working principle: When in use, first piles are driven on the project site and foundation concrete is poured, the side columns 7 are fixed to the concrete, and then the side diagonal braces 8 are also fixedly connected to the concrete. The side columns 7 and the side diagonal braces 8 can be connected to the concrete through pile foundations, or through flanges as needed. The component fixing cables 3 are arranged on the first truss 1 along the second direction at intervals by extruding anchors 18, and the component fixing cables 3 are matched in pairs, so that every two component fixing cables 3 form an installation base surface for installing the photovoltaic component 20. The photovoltaic component 20 is fixed along the second direction using the upper clamping plate 29, the lower clamping plate 30 and the fastening bolts 31. The side columns 7 and the mounting base are installed on the component fixing cables 3 in sequence in the first direction. At this time, the side columns 7 and the mounting base surface are enclosed together to form a clearance area for isolating the photovoltaic components 20 from the ground. A greenhouse 19 can be set in the clearance area. The entrances and exits of the greenhouse 19 correspond to the side columns 7 at both ends arranged along the first direction. Since the side diagonal bracing rods 8 are arranged in the clearance area and the side diagonal bracing rods 8 are arranged along the first direction, the side diagonal bracing rods 8 are just located on the connecting line of the side columns 7 of the two groups of first support components, so that they will not touch the project site outside the clearance area, and will not occupy the space of the entrances and exits at both ends of the greenhouse 19, so that it is convenient for entry and exit;

[0069] Since the component fixing cables 3 are all fixed to the upper end of the first truss 1 along the second direction, it means that the span of the first truss 1 is larger than the span of the truss in the prior art, and the first truss 1 has only two side columns 7 for fixing. As the span increases, the load borne by the first truss 1 will be greater, so a truss with higher structural strength is required. Therefore, the first chord 11, the second chord 12 and the first web 13 are welded to form a truss structure similar to a right triangle, which can not only effectively improve the structural strength of the truss, but also because of the hollow design, it does not consume more steel, the weight is also lighter, and the span can be adjusted according to project requirements to reduce the number of pile foundations, further reducing the occupancy rate of the project site.

[0070] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples; within the spirit of the present invention, the technical features in the above embodiments or in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the above aspects of the present invention, which are not provided in detail for the sake of simplicity.

[0071] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A large-span photovoltaic flexible bracket, characterized in that: include: Two groups of first support components for installing component fixing cables (3) are arranged opposite to each other along a first direction, each group of the first support components comprising: A first truss (1) having a length extending along a second direction; a plurality of first connection structures arranged at intervals on the first truss (1) along the second direction, the first connection structures being used to fix the ends of the component fixing cables (3), so that the component fixing cables (3) are arranged at intervals along the second direction and matched in pairs, thereby forming a mounting base surface for mounting the photovoltaic component (20); Two side columns (7) arranged at the ends of the first truss (1), the side columns (7) and the installation base surface together enclose a clearance area for isolating the photovoltaic assembly (20) from the ground; A side diagonal support rod (8) is provided in the clearance area and arranged along a first direction to provide an oblique supporting force for the side column (7).

2. The long-span photovoltaic flexible bracket according to claim 1, characterized in that: The large-span photovoltaic flexible support also includes: A first flange plate (16) provided at one end of the side diagonal brace (8) close to the side column (7); A second flange plate (15) is provided at one end of the side diagonal brace (8) away from the side column (7), and the second flange plate (15) is in contact with the ground; A third flange plate (17) is provided at a corresponding position of the side column (7) and matches the first flange plate (16); A fourth flange plate (14) is arranged at the bottom end of the side column (7), and the fourth flange plate (14) is in contact with the ground. The first flange plate (16), the second flange plate (15), the third flange plate (17) and the fourth flange plate (14) are all connected with matching bolt fasteners.

3. The long-span photovoltaic flexible bracket according to claim 1, characterized in that: The side diagonal bracing rod (8) is welded and fixed to the side column (7) at the joint, the bottom end of the side column (7) is provided with a first pile foundation (10), the bottom end of the side diagonal bracing rod (8) is provided with a base block (34), and the bottom end of each base block (34) is connected to two second pile foundations (21).

4. The long-span photovoltaic flexible bracket according to claim 1, characterized in that: The component fixing cable (3) is provided with a fixing part for installing a photovoltaic component (20), and the fixing part comprises: an upper clamping plate (29) and a lower clamping plate (30) connected to the upper clamping plate (29) by bolts, the lower clamping plate (30) forms a clamping groove for clamping the component fixing cable (3) between the upper clamping plates (29), and the upper clamping plate (29) is connected to the photovoltaic component (20) by bolts.

5. The long-span photovoltaic flexible bracket according to claim 1, characterized in that: The first truss (1) comprises: A first chord rod (11) extending axially along a second direction, wherein the first chord rods (11) are three in number, and first connection planes are formed between two adjacent first chord rods (11); A second chord rod (12) for fixing the adjacent first chord rod (11), wherein the second chord rods (12) are mutually enclosed to form a straight triangle fixing frame, wherein the straight triangle fixing frame has a plurality of members and is arranged at intervals along the axial direction of the first chord rod (11); A plurality of first web members (13) are arranged in the first connection plane, the two ends of the first web members (13) are respectively fixed to two first chord members (11) in the first connection plane, and adjacent first web members (13) are staggered to form a first V-shaped fixing frame, so that three first chord members (11) are fixed by the straight triangle fixing frame and the first V-shaped fixing frame.

6. The long-span photovoltaic flexible bracket according to claim 1, characterized in that: The large-span photovoltaic flexible support comprises: Horizontal longitudinal stabilizing components arranged at intervals along a first direction and used to connect multiple rows of component fixing cables (3); Vertical wind-resistant components are arranged at intervals along the first direction and are used to connect the horizontal longitudinal stabilizing components.

7. The long-span photovoltaic flexible bracket according to claim 6, characterized in that: The horizontal longitudinal stabilization component comprises a support rod (4), wherein the support rod (4) has a plurality of support rods (4) which are hinged and fixed to each other at the head and tail ends to form a Z-shaped frame, wherein the Z-shaped frame extends along a second direction and is connected to all component fixing cables (3), wherein a transverse connecting rod (5) is connected to the bottom end of the Z-shaped frame, wherein the transverse connecting rod (5) is used to limit the rotational freedom between adjacent support rods (4); the vertical wind-resistant component comprises a vertical connecting rod (6) having one end connected to the Z-shaped frame, wherein the other end of the vertical connecting rod (6) is connected to a third pile foundation (35) for inserting into the ground.

8. The long-span photovoltaic flexible bracket according to claim 1, characterized in that: The large-span photovoltaic flexible support further comprises a second support assembly arranged between the two groups of first support assemblies for supporting the assembly fixing rope (3), the second support assembly comprising a second truss (2) and a middle column (9) arranged at both ends of the second truss (2), the middle column (9) being connected to a fourth pile foundation (22) for inserting into the ground, and the second truss (2) comprising: A third chord rod (24) extending axially along the second direction, wherein there are three third chord rods (24), and second connection planes are formed between two adjacent third chord rods (24); A second connection structure provided at the upper end of the third chord rod (24) for fixing the assembly fixing cable (3); A fourth chord rod (25) for fixing the third chord rod (24) adjacent to the fourth chord rod (25), the fourth chord rods (25) mutually enclosing to form an isosceles triangle fixing frame, the isosceles triangle fixing frame having a plurality of members and arranged at intervals along the axial direction of the third chord rod (24); A plurality of second web members (26) are arranged in the second connection plane, and two ends of the second web members (26) are respectively fixed to two third chord members (24) in the second connection plane, and adjacent second web members (26) are staggered to form a second V-shaped fixing frame, so that three third chord members (24) are fixed by the isosceles triangle fixing frame and the second V-shaped fixing frame.

9. The long-span photovoltaic flexible bracket according to claim 5, characterized in that: The first connection structure comprises: First pillars (32) are arranged at intervals on the upper end of the first chord (11), and a first low point is formed between adjacent first pillars (32); An extrusion anchor (18) is provided at the top end and the first low point of the first support column (32), and the extrusion anchor (18) is used to fix the end of the component fixing cable (3).

10. The long-span photovoltaic flexible bracket according to claim 8, characterized in that: The second connection structure comprises: Second pillars (33) are arranged at intervals on the upper ends of the third chord rods (24), and a second low point is formed between adjacent second pillars (33); A clamp is arranged at the top and the second lowest point of the second pillar (33), and the clamp comprises: a U-shaped bolt (28) and a support seat (27) adapted to the U-shaped bolt (28), and a clamping space for clamping the fixing cable (3) of the clamping assembly is formed between the U-shaped bolt (28) and the support seat (27).

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