Cable gallery for offshore photovoltaic large-span support and offshore photovoltaic equipment

Abstract

The utility model belongs to the field of offshore photovoltaic technology, and particularly relates to a cable gallery for an offshore photovoltaic large-span support and an offshore photovoltaic device, the cable gallery for the offshore photovoltaic large-span support comprises a main gallery and branch galleries, the length arrangement direction of the main gallery is parallel to the parallel arrangement direction of a plurality of photovoltaic inclined frame rods, and the length arrangement direction of the branch galleries is parallel to the parallel arrangement direction of the photovoltaic inclined frame rods. The branch galleries are detachably connected with the main gallery and the photovoltaic inclined frame rod so as to form an inverted triangular support platform with the main gallery and the photovoltaic inclined frame rod, the main gallery and the branch galleries are enclosed to form a placing channel for placing a cable, and the placing channel is located at the top of the inverted triangular support platform. The top of the inverted triangular support platform is provided with a placing channel for placing cables, the triangular support platform enables the cable placing channel to be high in stability and simple in structure, the top space of the platform is wide, the cables cannot be stacked in the height direction, and later cable cleaning, maintenance and overhaul are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to offshore photovoltaic technical field, concretely relates to a kind of cable gallery and offshore photovoltaic equipment for offshore photovoltaic large-span support. BACKGROUND

[0002] Offshore photovoltaic power station becomes important direction of new energy development due to its broad space and abundant solar radiation resources.The structural form of offshore photovoltaic engineering not only can meet the influence of offshore wind, wave, flow, ice and other adverse sea conditions, but also should meet the requirements of convenient and efficient offshore construction operation, and also needs to comprehensively consider many factors such as marine environment, construction difficulty, economic cost, offshore construction operation amount, therefore the cable laying and maintenance of large-span photovoltaic support face many challenges, such as cable is easily eroded by seawater, wind and wave impact, and the self-weight and tension of cable under large span generate additional burden on support structure.

[0003] In related technologies, cables are usually directly laid on the net rack, lacking effective protection and fixing measures, which not only affects the service life of the cables, but also increases the maintenance cost.The existing open grid bridge is designed with inclined rods, which limits the space environment for cable arrangement.

[0004] Chinese patent CN118610954A discloses a bridge platform for offshore photovoltaic cable landing, which includes a steel truss with an open bottom and a steel grating plate fixedly connected to the bottom of the steel truss, and a cable support including a main support plate fixedly installed on the steel truss and a plurality of support rods fixedly connected to the inner side of the main support plate, with gaps between adjacent support rods, and cables can be clamped into the gaps to fix the cables in the steel truss.The adjacent support rods are distributed vertically, so that the gap between adjacent support rods at higher positions is larger, and the gap between adjacent support rods at lower positions is smaller, and the bending radius of smaller diameter submarine cable is smaller and can be clamped between adjacent support rods at lower positions, and the bending radius of larger diameter submarine cable is larger and needs to be clamped between adjacent support rods at higher positions.The above-mentioned cable support arranges the cable gallery in the height direction, which causes the cables to be clamped into the support rods and stacked upward, which brings great inconvenience to future cable cleaning, maintenance and repair. UTILITY MODEL CONTENTS

[0005] To solve the above problems, the purpose of the utility model is to provide a cable gallery for offshore photovoltaic large-span support, which aims to facilitate the placement of offshore photovoltaic cables and the later cleaning, maintenance and repair of cables.

[0006] In order to achieve the above object, the utility model provides a cable gallery for offshore photovoltaic large span support, including main gallery and branch gallery, the length arrangement direction of main gallery is parallel to the parallel arrangement direction of a plurality of photovoltaic inclined support poles, branch gallery is detachably connected with main gallery and photovoltaic inclined support pole, to form inverted triangular support platform with main gallery and photovoltaic inclined support pole, main gallery and branch gallery enclose and form the placement channel for placing cable, and the placement channel is located at the top of inverted triangular support platform.

[0007] Optionally, the main gallery comprises two gallery rods arranged in parallel, and the two gallery rods are located between two photovoltaic inclined support poles arranged at an angle, and the two sides of the branch gallery are connected with the two gallery rods and the photovoltaic inclined support poles, respectively.

[0008] Optionally, the two gallery rods are located on both sides of the branch gallery in the width direction, the width of the branch gallery is adjustable, and the branch gallery is provided with a plurality of spaced water leakage holes.

[0009] Optionally, the branch gallery comprises a plurality of fixing structures, and the two ends of each fixing structure are detachably connected with the two gallery rods, respectively, the plurality of fixing structures are arranged at intervals along the extension direction of the gallery rod, and the water leakage hole is formed between the two adjacent fixing structures.

[0010] Optionally, the fixing structure comprises a connecting rod and a fixing assembly located at the two ends of the connecting rod, and each fixing assembly is used for connecting the connecting rod with the gallery rod and the connecting rod with the photovoltaic inclined support pole.

[0011] Optionally, the connecting rod is provided as a telescopic rod.

[0012] Optionally, the fixing assembly comprises a first fork and a second fork, the two first forks are arranged at the two ends of the connecting rod, respectively, for connecting the connecting rod with the photovoltaic inclined support pole, and the two second forks are arranged on the connecting rod and adjacent to the first fork, respectively, for connecting the connecting rod with the gallery rod.

[0013] Optionally, the first fork is fixedly arranged at the opposite position of the connecting rod, and the second fork is movably sleeved on the connecting rod.

[0014] Optionally, the first fork or the second fork comprises an adapter plate and a U-shaped lock, the U-shaped lock and the adapter plate of the first fork enclose to form a first lock hole for locking the photovoltaic inclined support pole, and the U-shaped lock and the adapter plate of the second fork enclose to form a second lock hole for locking the gallery rod.

[0015] The utility model also provides a kind of offshore photovoltaic equipment, including support frame, photovoltaic support and the cable gallery for offshore photovoltaic large-span support described above, the cable gallery for offshore photovoltaic large-span support is continuously bent section and is located between the photovoltaic inclined frame pole of the photovoltaic support.

[0016] The cable gallery for offshore photovoltaic large-span support of the utility model includes main gallery and branch gallery, the length arrangement direction of main gallery is parallel to the parallel arrangement direction of multiple photovoltaic inclined frame poles, branch gallery is detachably connected with main gallery and photovoltaic inclined frame pole, to form inverted triangular support platform with main gallery and photovoltaic inclined frame pole, main gallery and branch gallery are enclosed to form placement channel for placing cable, and placement channel is located at the top of inverted triangular support platform. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole machine side view structure schematic diagram of an embodiment of the utility model offshore photovoltaic equipment.

[0018] Figure 2 It is the top view local structure schematic diagram of an embodiment of the utility model offshore photovoltaic equipment.

[0019] Figure 3 It is the distribution structure schematic diagram of cable gallery of an embodiment of the utility model cable gallery for offshore photovoltaic large-span support.

[0020] Figure 4 It is the local cable gallery structure schematic diagram of an embodiment of the utility model cable gallery for offshore photovoltaic large-span support.

[0021] Figure 5 It is the local cable gallery structure schematic diagram of an embodiment of the utility model cable gallery for offshore photovoltaic large-span support.

[0022] Figure 6 It is the structure schematic diagram of branch gallery of an embodiment of the utility model cable gallery for offshore photovoltaic large-span support.

[0023] In the figure: 100, cable gallery for offshore photovoltaic large-span support; 10, main gallery; 10A, placing channel; 10B, water leakage hole; 11, gallery rod; 30, sub-gallery; 40, fixing structure; 41, connecting rod; 42, fixing assembly; 421, first fork; 422, second fork; 4211, adapter plate; 4212, U-shaped lock; 421A, first lock hole; 422A, second lock hole; 600, offshore photovoltaic device; 61, support frame; 63, photovoltaic general frame; 65, photovoltaic support; 651, photovoltaic inclined frame rod; 66, photovoltaic panel. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clear and explicit, the technical scheme of the utility model will be described clearly and completely below in combination with the drawings.

[0025] Offshore photovoltaic power stations have become an important direction of new energy development due to their broad space and abundant solar radiation resources. The structural form of offshore photovoltaic projects not only needs to be able to withstand the influence of harsh sea conditions such as wind, waves, currents and ice, but also needs to meet the requirements of convenient and efficient offshore construction operations, and also needs to comprehensively consider factors such as marine environment, construction difficulty, economic cost, offshore construction workload and the like, so the cable layout and maintenance of large-span photovoltaic supports face many challenges, such as the cable being easily eroded by seawater and impacted by wind and waves, and the self-weight and tension of the cable under large span causing additional burden on the support structure.

[0026] In related technologies, the cable is usually directly laid on the net rack, lacking effective protection and fixing measures, which not only affects the service life of the cable, but also increases the maintenance cost. The existing open grid bridge frame has inclined angle design for the frame rods, so that the space environment available for cable arrangement is limited.

[0027] Chinese patent CN118610954A discloses a bridge platform for offshore photovoltaic cable landing, which comprises a steel truss with an open bottom and a steel grating plate fixedly connected to the bottom of the steel truss, and a cable support comprising a main support plate fixedly installed on the steel truss and a plurality of supporting rods fixedly connected to the inner side of the main support plate, with gaps between adjacent supporting rods into which the cable can be clamped to fix the cable in the steel truss. The adjacent supporting rods are arranged in an up-down distribution, so that the gap between the adjacent supporting rods at a higher position is larger, the gap between the adjacent supporting rods at a lower position is smaller, and the bending radius of a smaller diameter submarine cable is smaller and can be clamped between the adjacent two supporting rods at a lower position, while the bending radius of a larger diameter submarine cable is larger and needs to be clamped between the adjacent two supporting rods at a higher position. The above cable support arranges the cable gallery in the height direction, causing the cable to be clamped into the supporting rods and stacked upward, which brings great inconvenience to future cable cleaning and maintenance.

[0028] To achieve the above objectives, this utility model provides a cable corridor 100 for a large-span support structure for offshore photovoltaic systems, comprising a main corridor 10 and branch corridors 30, such as... Figures 1 to 4 As shown, the length of the main corridor 10 is parallel to the parallel arrangement of the multiple photovoltaic inclined supports 651. The branch corridor 30 is detachably connected to the main corridor 10 and the photovoltaic inclined supports 651 to form an inverted triangular support platform with the main corridor 10 and the photovoltaic inclined supports 651. The main corridor 10 and the branch corridor 30 enclose a cable placement channel 10A. (The cable placement channel 10A is referred to in conjunction with the reference.) Figure 4 As shown, placement channel 10A is located at the top of the inverted triangular support platform.

[0029] The cable corridor 100 (hereinafter referred to as cable corridor 100) for large-span offshore photovoltaic supports of this utility model includes a main corridor 10 and a branch corridor 30. The length of the main corridor 10 is parallel to the parallel arrangement direction of multiple photovoltaic inclined support poles 651. The branch corridor 30 is detachably connected to the main corridor 10 and the photovoltaic inclined support poles 651 to form an inverted triangular support platform with the main corridor 10 and the photovoltaic inclined support poles 651. The main corridor 10 and the branch corridor 30 enclose a cable placement channel 10A, which is located at the top of the inverted triangular support platform. The cable placement channel 10A is located at the top of the inverted triangular support platform. The triangular support platform makes the cable placement channel 10A highly stable, simple in structure, and spacious at the top of the platform, preventing cables from piling up along the height direction, which facilitates the cleaning, maintenance and repair of cables in the future.

[0030] It should be noted that the offshore photovoltaic equipment 600 includes a bottom support frame 61, a photovoltaic main frame 63 mounted on the support frame 61 and arranged in parallel, a photovoltaic bracket 65 housed within the photovoltaic main frame 63, and photovoltaic panels 66. The support frame 61 is vertically positioned, and the photovoltaic main frame 63 is angled relative to the support frame 61, causing the photovoltaic panels 66 mounted on top of the photovoltaic main frame 63 to face the sun at an angle. The photovoltaic bracket 65 includes multiple sets of photovoltaic inclined support rods 651 arranged in a figure-eight angle, forming a large inverted triangular structure with the photovoltaic main frame 63 adjacent to the photovoltaic panels 66. Meanwhile, the branch corridor 30, the main corridor 10, and the photovoltaic inclined support rods 651 form a small inverted triangular support platform, allowing the cable corridor 100 to occupy the internal space of the photovoltaic structure, achieving effective space saving and rational utilization. The cables of each photovoltaic panel 66 are stored in the cable corridor 100 and extend through the cable corridor 100 to the support frame 61, where the cables are led out to transmit electrical energy.

[0031] Optionally, the main corridor 10 comprises two corridor rods 11 arranged in parallel, both of which are located between two photovoltaic inclined rack rods 651 arranged at an angle, and two sides of the sub-corridor 30 are connected to the two corridor rods 11 and the photovoltaic inclined rack rods 651 respectively.

[0032] In this embodiment, the main corridor 10 is detachably connected to the photovoltaic inclined rack rods 651 through the sub-corridor 30, and the two sides of the sub-corridor 30 are arranged adjacent to the two corridor rods 11. Each side of the sub-corridor 30 is detachably connected to the corridor rod 11 on that side and the photovoltaic inclined rack rod 651 on that side.

[0033] Optionally, the two corridor rods 11 are located on both sides of the width direction of the sub-corridor 30, and the width of the sub-corridor 30 is adjustable, that is, the sub-corridor 30 can also be set to different widths corresponding to the required height to flexibly adjust the height position of the inverted triangular support platform in the internal space of the photovoltaic structure as needed.

[0034] Further, the sub-corridor 30 is provided with a plurality of spaced water leakage holes 10B (the water leakage holes 10B are shown in combination with FIG. 2B and FIG. 3B). Figure 5 This allows the inverted triangular support platform to be provided with a plurality of water leakage holes 10B, avoiding the accumulation of water on the inverted triangular support platform and affecting the placement of the cable, reducing the phenomenon of long-term immersion of the cable in water, and improving the safety of power transmission.

[0035] Optionally, the sub-corridor 30 comprises a plurality of fixing structures 40, both ends of each fixing structure 40 are detachably connected to two corridor rods 11, and the plurality of fixing structures 40 are arranged in the extension direction of the corridor rod 11, and the water leakage hole 10B is formed between adjacent two fixing structures 40.

[0036] In this embodiment, the plurality of fixing structures 40 of the sub-corridor 30 are arranged in the extension direction of the corridor rod 11, so that the plurality of fixing structures 40 adjacent to one side of a corridor rod 11 form a side of the sub-corridor 30, and one end of each fixing structure 40 can be used to fix the corridor rod 11 and the adjacent photovoltaic inclined rack rod 651. The plurality of fixing structures 40 are arranged at intervals to form the top surface of the inverted triangular support platform, and the water leakage hole 10B is formed between adjacent two fixing structures 40, so that a plurality of water leakage holes 10B are formed on the inverted triangular support platform to prevent water from accumulating on the inverted triangular support platform.

[0037] Optionally, the fixing structure 40 comprises a connecting rod 41 and a fixing component 42 located at both ends of the connecting rod 41, and each fixing component 42 is used to connect the connecting rod 41 with the corridor rod 11 and the connecting rod 41 with the photovoltaic inclined rack rod 651.

[0038] In the embodiment, the plurality of connecting rods 41 are arranged along the extension direction of the gallery rod 11 to form a plurality of gaps, and the fixing assemblies 42 at both ends of the connecting rod 41 are respectively connected to the gallery rod 11 and the photovoltaic inclined rack rod 651 at the same end. The parallel arrangement of the plurality of connecting rods 41 forms the top surface of the inverted triangular support platform, and the fixing assemblies 42 and the connecting rods 41 of the adjacent two fixing structures 40 and the gallery rod 11 form a water leakage hole 10B, so that the cable placement channel 10A is widened, the cable placement space is large and does not need to be stacked, and the water leakage hole 10B can prevent rainwater from accumulating.

[0039] Optionally, the connecting rod 41 is provided as a telescopic rod.

[0040] In the embodiment, the sub-gallery 30 can also be provided with different widths corresponding to the required height to flexibly adjust the height position of the inverted triangular support platform in the internal space of the photovoltaic structure. Specifically, the connecting rod 41 of the fixing structure 40 can be provided as a telescopic rod, and each telescopic rod changes in length along its length direction to change the width of the sub-gallery 30, thereby adjusting the overall width of the inverted triangular support platform, so that the placement channel 10A of the corresponding width is set according to the number and weight of the cables, so that the cables are not stacked in the height direction, facilitating subsequent cleaning and maintenance.

[0041] Optionally, the fixing assembly 42 includes a first fork support 421 and a second fork support 422. The two first fork supports 421 are respectively arranged at both ends of the connecting rod 41 to connect the connecting rod 41 and the photovoltaic inclined rack rod 651. The two second fork supports 422 are respectively arranged on the connecting rod 41 and are respectively arranged adjacent to the first fork support 421 to connect the connecting rod 41 and the gallery rod 11.

[0042] In the embodiment, the photovoltaic inclined rack rod 651 belongs to the net rack structure of the photovoltaic support 65, the first fork support 421 is arranged at an angle with the connecting rod 41, and the relative position of the photovoltaic inclined rack rod 651 is relatively fixed. The angle of the first fork support 421 can be correspondingly set, so that the first fork support 421 at both ends of the connecting rod 41 is connected to the corresponding side of the photovoltaic inclined rack rod 651 to fix the relative height of the inverted triangular support platform. The second fork support 422 is used to connect the connecting rod 41 and the gallery rod 11 to cooperate with the connection of the sub-gallery 30 and the main gallery 10, thereby forming a complete inverted triangular support platform.

[0043] Optionally, the first fork support 421 is fixedly arranged relative to the connecting rod 41, and the second fork support 422 is movably sleeved on the connecting rod 41.

[0044] In this embodiment, the relative position of the photovoltaic inclined frame rod 651 is relatively fixed, and the relative position of the first fork support 421 and the connecting rod 41 is fixedly arranged. The fixing mode can be welding fixation or relative bolt locking. The second fork support 422 is movably sleeved on the connecting rod 41, so that the corridor rod 11 of the main corridor 10 has a partial movement allowance relative to the connecting rod 41 and the photovoltaic inclined frame rod 651, the inverted triangular support platform has a shock absorption function, the impact of wind and waves on the cable can be reduced, and the service life of the cable is prolonged.

[0045] In combination with reference Figure 6 As shown in the figure, optionally, the first fork support 421 or the second fork support 422 includes an adapter plate 4211 and a U-shaped lock 4212, the U-shaped lock 4212 of the first fork support 421 and the adapter plate 4211 form a first lock hole 421A to lock the photovoltaic inclined frame rod 651, and the U-shaped lock 4212 of the second fork support 422 and the adapter plate 4211 form a second lock hole 422A to lock the corridor rod 11.

[0046] In this embodiment, the adapter plate 4211 and the U-shaped lock 4212 are detachably connected, and the connection mode can refer to the locking mode of the existing U-shaped lock 4212, which will not be described in detail here.

[0047] Because the relative position of the photovoltaic inclined frame rod 651 is relatively fixed, the first lock hole 421A of the first fork support 421 needs to be set according to the setting angle of the photovoltaic inclined frame rod 651, so the adapter plate 4211 of the first fork support 421 can be an integral bent sheet metal part with an included angle. The angle of the two bent sheet metal parts can be adapted according to the inclination angle of the photovoltaic inclined frame rod 651 to change the setting direction of the first lock hole 421A, so as to facilitate the relative connection of the first fork support 421 and the photovoltaic inclined frame rod 651.

[0048] The second fork support 422 is movably sleeved on the connecting rod 41 through the second lock hole 422A, and the second lock hole 422A can simultaneously sleeve and lock the connecting rod 41 and the corridor rod 11 to relatively lock the main corridor 10 and the branch corridor 30.

[0049] It should be noted that the branch corridor 30 and the main corridor 10 described above are made of steel, such as stainless steel, and the outer part of the steel is wrapped with a corrosion-resistant material or the surface of the steel is provided with a corrosion-resistant coating.

[0050] It should be further noted that the cable corridor 100 has simple structure and flexible application, can be built in any span photovoltaic frame array, and greatly saves the steel amount of the photovoltaic cable wiring.

[0051] As Figures 1 to 4As shown, the utility model also provides a kind of offshore photovoltaic equipment 600, the offshore photovoltaic equipment 600 includes support frame 61, photovoltaic support 65 and the cable gallery 100 for offshore photovoltaic large-span support described above, the specific structure of the cable gallery 100 for offshore photovoltaic large-span support described above refers to the above embodiment, since the offshore photovoltaic equipment 600 of the present application adopts all the technical solutions of the above all embodiments, at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.The cable gallery 100 for offshore photovoltaic large-span support is continuously arranged between photovoltaic inclined frame rod 651 of photovoltaic support 65.

[0052] In the embodiment, the offshore photovoltaic equipment 600 includes a bottom support frame 61, a photovoltaic main frame 63 arranged on the support frame 61 and parallel, a photovoltaic support 65 arranged in the photovoltaic main frame 63, and a photovoltaic panel 66. The support frame 61 is vertically arranged, and the photovoltaic main frame 63 is arranged at an angle with the support frame 61, so that the photovoltaic panel 66 arranged on the top of the photovoltaic main frame 63 faces the sun at an angle. For reference Figure 5 And Figure 6 As shown, the cable gallery 100 described above is continuously arranged between the photovoltaic inclined frame rods 651 of the photovoltaic support 65, which can arrange and guide the cables of the photovoltaic panels 66 in any area to the same cable output position. For example, the continuously bent cable gallery 100 guides the cables at the four corners to the cable output position near the support frame 61, so that the cables are uniformly led out at the position of the support frame 61 to realize current transmission. The structure of the cable gallery 100 realizes effective protection and convenient maintenance of the cables in the offshore photovoltaic large-span support, and provides technical support for long-term stable operation of the offshore photovoltaic power station.

[0053] In the utility model, if the terms "inner", "outer", "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0054] In the utility model, unless otherwise specified and limited, if the terms "set", "install", "fix", "connect" are broadly understood, for example, "connect" can be fixed connection, or detachable connection, or integrally connected; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium; can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0055] The above merely describes preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, made under the concept of the present application, using the content of the present application specification and drawings, are included in the patent protection scope of the present application.

Claims

1. A cable gallery for offshore photovoltaic large span support, characterized in that, The main corridor and the branch corridor, the length of the main corridor is arranged in parallel to the parallel arrangement direction of the plurality of photovoltaic inclined support rods, the branch corridor is detachably connected with the main corridor and the photovoltaic inclined support rods to form an inverted triangular support platform with the main corridor and the photovoltaic inclined support rods, and the main corridor and the branch corridor enclose a placement channel for placing cables, which is located at the top of the inverted triangular support platform.

2. Cable gallery for offshore photovoltaic large span supports according to claim 1, characterized in that, The main corridor comprises two corridor rods arranged in parallel, and the two corridor rods are located between two photovoltaic inclined support rods arranged at an angle, and the branch corridor is connected with the two corridor rods and the photovoltaic inclined support rods on both sides.

3. Cable gallery for offshore photovoltaic large span supports according to claim 2, characterized in that, The two corridor rods are located on both sides of the branch corridor in the width direction, the width of the branch corridor is adjustable, and the branch corridor is provided with a plurality of spaced water leakage holes.

4. Cable gallery for offshore photovoltaic large span supports according to claim 3, characterized in that, The branch corridor comprises a plurality of fixing structures, both ends of each fixing structure are detachably connected with two corridor rods, a plurality of fixing structures are arranged in the extension direction of the corridor rod, and the water leakage hole is formed between adjacent two fixing structures.

5. Cable gallery for offshore photovoltaic large span supports according to claim 4, characterized in that, The fixing structure comprises a connecting rod and a fixing component at both ends of the connecting rod, and each fixing component is used to connect the connecting rod with the corridor rod and the connecting rod with the photovoltaic inclined support rod.

6. Cable gallery for offshore photovoltaic large span supports according to claim 5, characterized in that, The connecting rod is arranged as a telescopic rod.

7. Cable gallery for offshore photovoltaic large span supports according to claim 6, characterized in that, The fixing component comprises a first fork and a second fork, two first forks are arranged at both ends of the connecting rod to connect the connecting rod with the photovoltaic inclined support rod, and two second forks are arranged on the connecting rod and arranged adjacent to the first fork to connect the connecting rod with the corridor rod.

8. Cable gallery for offshore photovoltaic large span supports according to claim 7, characterized in that, The first fork is fixedly arranged at a position opposite to the connecting rod, and the second fork is movably sleeved on the connecting rod.

9. Cable gallery for offshore photovoltaic large span supports according to claim 8, characterized in that, The first fork or the second fork comprises an adapter plate and a U-shaped lock, the U-shaped lock and the adapter plate of the first fork enclose a first lock hole to lock the photovoltaic inclined support rod, and the U-shaped lock and the adapter plate of the second fork enclose a second lock hole to lock the corridor rod.

10. Offshore photovoltaic plant, characterized in that, The support frame, the photovoltaic support, and the cable corridor for the large-span offshore photovoltaic support according to any one of claims 1 to 9, wherein the cable corridor for the large-span offshore photovoltaic support is arranged in a continuous bending section between the photovoltaic inclined support rods of the photovoltaic support.

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