Mountain windproof flexible photovoltaic support and installation method

Abstract

The invention relates to the technical field of photovoltaic supports, and discloses a mountainous region windproof flexible photovoltaic support, which comprises a rigid support frame and a flexible structure, the rigid support frame comprises support legs and cross beams, the flexible structure comprises support suspension cables and photovoltaic panels, each row of photovoltaic panels are fixed on a group of support suspension cables, the flexible structure further comprises: an M-shaped support frame, a plurality of M-shaped supporting frames are fixed to the bottoms of every two adjacent supporting suspension cables. Two arched suspension cables are arranged at the bottoms of two adjacent groups of supporting suspension cables, the end parts of the arched suspension cables are fixed on the cross beam, the positions between the arched suspension cables penetrate through the chutes of the plurality of side plates, fixed ring buckles are arranged on the side plates, the fixed ring buckles are detachably fixed on the side plates at different heights through bolts, and the arched suspension cables penetrate through the fixed ring buckles. According to the structure, the arched suspension cable is additionally arranged, the windproof effect of the structure is improved, and the installation efficiency can be improved through the installation mode that the fixing ring buckles slide in the side plates.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic brackets, and in particular to a mountain windproof flexible photovoltaic bracket and an installation method. Background Art

[0002] The application of flexible brackets in the photovoltaic market has attracted more and more attention, especially in mountainous areas. They can easily cope with complex mountains or other irregular terrains, and have strong adaptability. Flexible brackets can also use their large span characteristics to adapt to slopes, thereby solving the problem of insufficient land use. The application of flexible brackets improves land utilization and achieves the effect of reducing costs and increasing efficiency. Take 100 acres of mountain land as an example. According to the flexible bracket arrangement, about 6MW of photovoltaic capacity can be arranged, and according to the traditional rigid bracket arrangement, about 4.5MW of photovoltaic capacity can be arranged, and the land utilization rate is increased by 30%. According to statistics, the total installation capacity of flexible brackets in China is expected to be no less than 3GW, of which about 70% are used in mountain projects similar to this project. These data fully demonstrate the huge demand and potential of flexible brackets in the photovoltaic market, especially in mountainous areas.

[0003] However, flexible brackets will also encounter various problems during their development. Currently, a variety of excellent support structure systems have been formed, such as double-layer cable structure, triple-layer cable structure, and steel cable strut structure. Among them, the double-layer cable photovoltaic bracket has weak wind resistance; the triple-layer cable photovoltaic bracket has enhanced wind and snow resistance by installing windproof cables under the supporting cables, and then connecting and tightening the windproof cables with the supporting cables, but it still does not solve the problem that the photovoltaic brackets in each row may affect each other in a strong wind environment in the case of multiple rows of arrays; the bracket structure combining cable structure and rigid strut further enhances the overall stability of the photovoltaic system, but also increases the difficulty and cost of installation.

[0004] The utility model with patent publication number CN221103229U provides a multi-row array flexible photovoltaic bracket, which is connected to the corresponding order of stabilizing frames through a designed stabilizing rod, connecting multiple bracket units into a whole to improve the wind protection effect. However, in order to make the wind-proof cable present an arc, stabilizing frames of different specifications need to be made in advance and installed in the exact position, which increases the difficulty of installation.

[0005] In summary, the existing flexible brackets have the following defects: 1. Poor wind protection effect; 2. High installation difficulty; 3. Poor stability between multiple rows of array flexible photovoltaic brackets. Summary of the invention

[0006] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a flexible photovoltaic bracket and installation method for mountain windbreak, which has the advantages of strong windbreak effect and convenient installation, and solves the problems mentioned in the above background technology.

[0007] (II) Technical solution To achieve the above object, the present invention provides the following technical solutions: A mountain windproof flexible photovoltaic support, comprising a rigid support frame and a flexible structure, wherein the rigid support frame comprises support legs and a crossbeam, the flexible structure comprises multiple groups of support cables and multiple rows of photovoltaic panels, both ends of the support cables are fixed on the crossbeam, each row of photovoltaic panels is fixed on a group of support cables, each group of support cables comprises at least two support cables, and the flexible structure further comprises: M-shaped support frame, multiple M-shaped support frames are fixed at the bottom of two adjacent groups of support cables, each M-shaped support frame includes two side plates and two connecting plates on both sides, the two connecting plates are respectively fixed on the two adjacent groups of support cables, the bottom of the side plate is inclined outward, the top is inclined inward and is fixed under the connecting plate through a C-shaped plate, and a slide groove is set in the side plate; Arched cables, two arched cables are arranged at the bottom of two adjacent groups of supporting cables, the ends of the arched cables are fixed on the cross beam, the positions between the arched cables pass through the slide grooves of multiple side panels, the side panels are provided with fixed buckles, the fixed buckles are detachably fixed to the side panels at different heights by bolts, the arched cables pass through the fixed buckles, and the position of the fixed buckles can be adjusted to make the arched cables present an arched structure with a high middle and low sides.

[0008] Preferably, the M-shaped middle part of the M-shaped support frame is provided with a middle plate extending downward, and the bottom of the middle plate is rotatably connected to a rotating fixture, and the flexible structure also includes an inclined suspension cable, which is sequentially located in the rotating fixtures on the M-shaped support frame passing through the diagonal position, wherein the rotating fixtures at the two ends of the inclined suspension cable are fixedly connected to the inclined suspension cable, and the rotating fixture in the middle part is slidably connected to the inclined suspension cable.

[0009] Preferably, the side panel and the photovoltaic panel are fixedly connected via a C-shaped plate, the C-shaped plate is C-shaped or V-shaped rotated 90 degrees, the C-shaped plate is concave or turns inward, and an air guide port is provided at the concave part or corner of the C-shaped plate.

[0010] Preferably, the ends of the supporting cables and the arched cables are fixed to the crossbeam via a cable fixer, and the cable fixer is fixed to the crossbeam and is provided with a through hole for passing the cable, and after the cable passes through the through hole, the cable end is fixed to the cable fixer via a nut.

[0011] Preferably, the edge of the fixing ring buckle is provided with an arc opening, and a plurality of mounting holes are arranged on the side panel, and the fixing ring buckle can be fixed at different positions on the side panel by passing bolts through the arc opening and the mounting holes.

[0012] Preferably, a telescopic soft cover is also provided on the fixing ring buckle, and the telescopic soft cover is used to fit on the arched suspension cable.

[0013] Preferably, at least two upper and lower cross beams are fixed on the support foot on one side, the support cable is fixed on the upper cross beam, and the arched cable is fixed on the lower cross beam.

[0014] A method for installing a mountain windproof flexible photovoltaic bracket, used for installing a mountain windproof flexible photovoltaic bracket as claimed in any one of claims 1 to 7, comprising the following steps: S1: Install the support legs on the ground and fix the crossbeam to the top of the support legs with bolts; S2: Fix the photovoltaic panel and the M-shaped support frame on the supporting suspension cable, and adjust the height of each fixing ring buckle on the side plate; S3: Fix the two ends of the supporting suspension cable in the suspension cable holders on the beam, and adjust the tightness of the supporting suspension cable; S4: Pass the arched suspension cable through each fixing ring buckle, then fix the two ends of the arched suspension cable on the beam through the suspension cable fixer, and adjust the tightness of the arched suspension cable; S5: Pass the inclined suspension cable through the rotating fixture at the diagonal position, fix the two ends of the inclined suspension cable in the rotating fixture, and adjust the tightness of the inclined suspension cable.

[0015] Preferably, the method for adjusting the tightness of the supporting cables, arched cables and inclined cables in S3, S4 and S5 is: clamp the cables with a clamp with tension detection and tighten them to the required tension value, and then fix the cables to the cable fixture or the rotating fixture by bolts.

[0016] (III) Beneficial effects Compared with the prior art, the present invention provides a mountain windproof flexible photovoltaic bracket and installation method, which has the following beneficial effects: 1. The mountain windproof flexible photovoltaic bracket and installation method are as follows: multiple M-shaped support frames are fixed under two adjacent groups of supporting cables, and fixed buckles with adjustable heights are arranged on the side panels on both sides of the M-shaped support frames. The arched cables are passed through the fixed buckles, and the arched cables are made into an arched structure by adjusting the height of the fixed buckles. The structure adds arched cables on the basis of the original supporting cables, and uses M-shaped support frames to fix the two adjacent groups of supporting cables and the arched cables together, thereby improving the windproof effect of the structure, and the installation method in which the fixed buckles slide in the side panels can improve the installation efficiency.

[0017] 2. The mountain windproof flexible photovoltaic bracket and installation method set the connecting part of the side plate and the connecting plate to a C-type plate. The C-type plate is C-shaped or V-shaped rotated 90 degrees. The C-type plate is concave or turned inward. By setting an air guide port at the concave part or the corner of the C-type plate, it is beneficial to guide the side wind blowing from both sides through the air guide port to the gap between the two connecting plates for discharge, thereby reducing the shaking caused by the side wind. The M-type support frame is a thin plate structure as a whole, with a small front area and small wind resistance.

[0018] 3. The mountain windproof flexible photovoltaic bracket and installation method are provided with a rotating fixture under the middle plate in the middle of the M-shaped support frame, and the inclined suspension cable passes through the rotating fixture of multiple M-shaped support frames at diagonal positions in an inclined state. Although the front and side areas of the M-shaped support frame are small and can effectively reduce wind resistance, the area of ​​the M-shaped support frame in the diagonal direction is large, so the M-shaped support frames at the diagonal positions are connected by inclined suspension cables to improve their wind resistance to diagonal winds other than headwinds and crosswinds. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic structural diagram of Embodiment 1 of the present invention.

[0020] FIG. 2 is a front view of the first embodiment of the present invention.

[0021] FIG. 3 is a left side view of the flexible structure of the first embodiment of the present invention.

[0022] FIG. 4 is a schematic structural diagram of a flexible structure according to the first embodiment of the present invention.

[0023] FIG. 5 is a schematic structural diagram of an M-shaped support frame according to the first embodiment of the present invention.

[0024] FIG. 6 is a schematic structural diagram of a fixing ring buckle according to the first embodiment of the present invention.

[0025] FIG. 7 is a bottom view of the first embodiment of the present invention.

[0026] In the figure: 1. rigid support frame; 2. flexible structure; 11. support foot; 12. crossbeam; 13. cable fixture; 21. supporting cable; 22. photovoltaic panel; 23. arched cable; 24. M-type support frame; 25. inclined cable; 241. connecting plate; 242. side plate; 243. middle plate; 244. rotating fixture; 245. C-type plate; 246. air guide port; 247. fixing ring buckle; 2471. arc opening; 2472. telescopic soft cover. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] Embodiment 1: This embodiment provides a mountain windproof flexible photovoltaic bracket and installation method, which has the following technical features.

[0031] Please refer to Figures 1-7, a mountain windproof flexible photovoltaic support includes a rigid support frame 1 and a flexible structure 2, the rigid support frame 1 includes a support foot 11 and a crossbeam 12, the flexible structure 2 includes multiple groups of support cables 21 and multiple rows of photovoltaic panels 22, the two ends of the support cables 21 are fixed on the crossbeam 12, each row of photovoltaic panels 22 is fixed on a group of support cables 21, each group of support cables 21 includes at least two support cables 21, and the flexible structure 2 also includes: M-shaped support frames 24, multiple M-shaped support frames 24 are fixed at the bottom of two adjacent groups of support cables 21, each M-shaped support frame 24 includes two side plates 242 and two connecting plates 241 on both sides, the two connecting plates 241 are respectively fixed on the two adjacent groups of support cables 21, the bottom of the side plate 242 is inclined outward, the top is inclined inward and is fixed under the connecting plate 241 through a C-shaped plate 245, and a slide groove is set in the side plate 242; Arched cables 23, two arched cables 23 are arranged at the bottom of two adjacent groups of supporting cables 21, the ends of the arched cables 23 are fixed on the cross beam 12, the positions between the arched cables 23 pass through the slide grooves of multiple side panels 242, and the side panels 242 are provided with fixed ring buckles 247, which are detachably fixed to the side panels 242 at different heights by bolts, and the arched cables 23 pass through the fixed ring buckles 247. By adjusting the position of the fixed ring buckles 247, the arched cables 23 can be made to have an arched structure with a high middle and low sides.

[0032] In an optional embodiment, the M-shaped middle portion of the M-shaped support frame 24 is provided with a downwardly extending middle plate 243, and the bottom of the middle plate 243 is rotatably connected to a rotating fixture 244, and the flexible structure 2 also includes an inclined suspension cable 25, and the inclined suspension cable 25 is sequentially located in the rotating fixture 244 on the M-shaped support frame 24 passing through the diagonal position, wherein the rotating fixtures 244 at the two ends of the inclined suspension cable 25 are fixedly connected to the inclined suspension cable 25, and the rotating fixture 244 in the middle portion is slidably connected to the inclined suspension cable 25.

[0033] In an optional embodiment, the side panel 242 is fixedly connected to the photovoltaic panel 22 via a C-shaped plate 245. The C-shaped plate 245 is C-shaped or V-shaped rotated 90 degrees. The C-shaped plate 245 is concave or turns inward, and an air guide port 246 is provided at the concave part or the corner of the C-shaped plate 245.

[0034] In an optional embodiment, the ends of the supporting cables 21 and the arched cables 23 are fixed to the cross beam 12 via a cable fixer 13. The cable fixer 13 is fixed to the cross beam 12 and is provided with a through hole for passing the cables. After the cables pass through the through hole, the ends of the cables are fixed to the cable fixer 13 via a nut.

[0035] In an optional embodiment, the edge of the fixing ring buckle 247 is provided with an arc opening 2471, and a plurality of mounting holes are arranged on the side panel 242. The fixing ring buckle 247 can be fixed at different positions on the side panel 242 by passing bolts through the arc opening 2471 and the mounting holes.

[0036] In an optional embodiment, a telescopic soft cover 2472 is further provided on the fixing ring buckle 247 , and the telescopic soft cover 2472 is used to fit on the arched suspension cable 23 .

[0037] In an optional embodiment, at least two upper and lower beams 12 are fixed to the support foot 11 on one side, the support cable 21 is fixed to the upper beam 12 , and the arched cable 23 is fixed to the lower beam 12 .

[0038] Embodiment 2: A method for installing a mountain windproof flexible photovoltaic bracket, which is used to install a mountain windproof flexible photovoltaic bracket as in Example 1, comprises the following steps: S1: Install the support foot 11 on the ground, and fix the crossbeam 12 to the top of the support foot 11 by bolts; S2: Fix the photovoltaic panel 22 and the M-shaped support frame 24 on the supporting suspension cable 21, and adjust the height of each fixing ring buckle 247 on the side plate 242; S3: Fixing the two ends of the supporting suspension cable 21 in the suspension cable fixing device 13 on the cross beam 12, and adjusting the tightness of the supporting suspension cable 21; S4: Pass the arched suspension cable 23 through each fixing ring buckle 247, and then fix the two ends of the arched suspension cable 23 on the crossbeam 12 through the suspension cable fixer 13, and adjust the tightness of the arched suspension cable 23; S5: Pass the inclined suspension cable 25 through the rotating fixture 244 at the diagonal position, fix both ends of the inclined suspension cable 25 in the rotating fixture 244, and adjust the tightness of the inclined suspension cable 25.

[0039] In an optional embodiment, the method for adjusting the tightness of the supporting cables 21, the arched cables 23 and the inclined cables 25 in S3, S4 and S5 is: clamp the cables using a clamp with tension detection and tighten them to the required tension value, and then fix the cables to the cable fixer 13 or the rotating fixer 244 by bolts.

[0040] In summary, the mountain windproof flexible photovoltaic bracket and installation method fixes multiple M-shaped support frames 24 under two adjacent groups of supporting cables 21, and sets height-adjustable fixing buckles 247 on the side panels 242 on both sides of the M-shaped support frames 24, and then passes the arched cables 23 through the fixing buckles 247, and the arched cables 23 are made into an arched structure by adjusting the height of the fixing buckles 247. The structure adds an arched arched cable 23 to the original supporting cables 21, and uses the M-shaped support frames 24 to fix the two adjacent groups of supporting cables 21 and the arched cables 23 together, thereby improving the windproof effect of the structure, and the installation method in which the fixing buckles 247 slide in the side panels 242 can improve the installation efficiency.

[0041] The mountain windproof flexible photovoltaic support and installation method set the connecting part of the side plate 242 and the connecting plate 241 as a C-type plate 245. The C-type plate 245 is C-shaped or V-shaped rotated 90 degrees. The C-type plate 245 is concave or turned inward. By setting an air guide port 246 at the concave part or the corner of the C-type plate 245, it is beneficial to guide the side wind blowing from both sides through the air guide port 246 to the gap between the two connecting plates 241 for discharge, thereby reducing the shaking caused by the side wind. The M-shaped support frame 24 is a thin plate structure as a whole, with a small front area and small wind resistance.

[0042] The mountain windproof flexible photovoltaic support and installation method are characterized in that a rotating fixture 244 is arranged below the middle plate 243 in the middle of the M-shaped support frame 24, and an inclined suspension cable 25 passes through the rotating fixture 244 of multiple M-shaped support frames 24 at diagonal positions. Although the front and side areas of the M-shaped support frames 24 are relatively small, which can effectively reduce wind resistance, the area of ​​the M-shaped support frames 24 in the diagonal direction is relatively large, so the M-shaped support frames 24 at diagonal positions are connected by the inclined suspension cables 25 to improve their wind resistance to diagonal winds other than headwinds and crosswinds.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mountain windproof flexible photovoltaic support, comprising a rigid support frame (1) and a flexible structure (2), wherein the rigid support frame (1) comprises a support foot (11) and a crossbeam (12), and the flexible structure (2) comprises a plurality of groups of supporting cables (21) and a plurality of rows of photovoltaic panels (22), wherein both ends of the supporting cables (21) are fixed to the crossbeam (12), and each row of photovoltaic panels (22) is fixed to a group of supporting cables (21), and each group of supporting cables (21) comprises at least two supporting cables (21), characterized in that: The flexible structure (2) further comprises: M-shaped support frames (24), a plurality of M-shaped support frames (24) being fixed at the bottom of two adjacent groups of support suspension cables (21), each M-shaped support frame (24) comprising two side plates (242) and two connecting plates (241) on both sides, the two connecting plates (241) being fixed on the two adjacent groups of support suspension cables (21), the side plates (242) being inclined outward at the bottom and inward at the top and being fixed below the connecting plates (241) via C-shaped plates (245), and a slide groove being arranged in the side plates (242); The arched suspension cable (23) is provided at the bottom of two adjacent groups of supporting suspension cables (21), the ends of the arched suspension cables (23) are fixed on the cross beam (12), the positions between the arched suspension cables (23) pass through the slide grooves of the plurality of side plates (242), the side plates (242) are provided with fixing ring buckles (247), the fixing ring buckles (247) are detachably fixed on the side plates (242) at different heights, the arched suspension cables (23) pass through the fixing ring buckles (247), and the positions of the fixing ring buckles (247) can be adjusted so that the arched suspension cables (23) present an arched structure with a high middle and low sides.

2. A mountain windproof flexible photovoltaic bracket according to claim 1, characterized in that: The M-shaped middle portion of the M-shaped support frame (24) is provided with a middle plate (243) extending downward, and the bottom of the middle plate (243) is rotatably connected to a rotating fixture (244). The flexible structure (2) also includes an inclined suspension cable (25), and the inclined suspension cables (25) are sequentially located at the rotating fixtures (244) on the M-shaped support frame (24) passing through the diagonal positions, wherein the rotating fixtures (244) at the two ends of the inclined suspension cable (25) are fixedly connected to the inclined suspension cable (25), and the rotating fixture (244) in the middle portion is slidably connected to the inclined suspension cable (25).

3. A mountain windproof flexible photovoltaic bracket according to claim 1, characterized in that: The side plate (242) and the photovoltaic panel (22) are fixedly connected via a C-shaped plate (245); the C-shaped plate (245) is in a C-shape or a V-shape rotated 90 degrees; the C-shaped plate (245) is concave inwards or has an inwardly turned corner; and an air guide port (246) is provided at the concave portion or the turned corner of the C-shaped plate (245).

4. A mountain windproof flexible photovoltaic bracket according to claim 1, characterized in that: The ends of the supporting cables (21) and the arched cables (23) are fixed to the crossbeam (12) via a cable fixer (13); the cable fixer (13) is fixed to the crossbeam (12) and is provided with a through hole for passing the cables; after the cables pass through the through hole, the ends of the cables are fixed to the cable fixer (13) via a nut.

5. The mountain windproof flexible photovoltaic bracket according to claim 1, characterized in that: The edge of the fixing ring buckle (247) is provided with an arc opening (2471), and a plurality of mounting holes are arranged on the side plate (242). By passing bolts through the arc opening (2471) and the mounting holes, the fixing ring buckle (247) can be fixed at different positions on the side plate (242).

6. A mountain windproof flexible photovoltaic support according to claim 5, characterized in that: The fixing ring buckle (247) is also provided with a telescopic soft cover (2472), and the telescopic soft cover (2472) is used to fit on the arched suspension cable (23).

7. The mountain windproof flexible photovoltaic bracket according to claim 1, characterized in that: At least two upper and lower cross beams (12) are fixed on the support foot (11) on one side, the support suspension cable (21) is fixed on the upper cross beam (12), and the arched suspension cable (23) is fixed on the lower cross beam (12).

8. A method for installing a mountain windproof flexible photovoltaic bracket, used for installing a mountain windproof flexible photovoltaic bracket as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Install the support foot (11) on the ground, and fix the crossbeam (12) to the top of the support foot (11) by bolts; S2: fixing the photovoltaic panel (22) and the M-shaped support frame (24) on the supporting suspension cable (21), and adjusting the height of each fixing ring buckle (247) on the side plate (242); S3: fixing the two ends of the supporting suspension cable (21) in the suspension cable fixing device (13) on the crossbeam (12), and adjusting the tightness of the supporting suspension cable (21); S4: passing the arched suspension cable (23) through each fixing ring buckle (247), and then fixing the two ends of the arched suspension cable (23) to the crossbeam (12) through the suspension cable fixing device (13), and adjusting the tightness of the arched suspension cable (23); S5: Pass the inclined suspension cable (25) through the rotating fixture (244) at the diagonal position, fix the two ends of the inclined suspension cable (25) in the rotating fixture (244), and adjust the tightness of the inclined suspension cable (25).

9. The method for installing a mountain windproof flexible photovoltaic bracket according to claim 8, characterized in that: The method for adjusting the tightness of the supporting cables (21), the arched cables (23) and the inclined cables (25) in S3, S4 and S5 is: using a clamp with a tension detection device to clamp the cables and tighten them to a required tension value, and then fixing the cables to the cable fixer (13) or the rotating fixer (244) by bolts.

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