Flexible photovoltaic three-cable system damping adjustable prestress inhaul cable connection node

Abstract

The invention relates to a flexible photovoltaic three-cable system damping adjustable prestress inhaul cable connection node which comprises a main body part, a telescopic part and a rope clamp part. The main body part forms a main body stress structure through a triangular frame and a triangular support which are welded with each other; the telescopic part is connected with the main body part through a bolt, is composed of an external sleeve and a telescopic assembly, adapts to the height change of the flexible photovoltaic three-cable system and the bearing cable in the direction of the prestressed inhaul cable, and adapts to the height difference generated by the assembly cable when the inclination angle of the photovoltaic panel is different; the rope clamp part is connected with a telescopic assembly in the telescopic part through a bolt, and an assembly cable and a bearing cable are allowed to penetrate through a rope clamp hole and are merged into the whole flexible photovoltaic three-cable system to play a role. The main body part, the outer sleeve in the telescopic part, the telescopic part and the rope clamp part are connected through bolts, and the joints are filled with buffer dampers; when the rope clamp part, the assembly rope and the bearing rope are connected and merged into the flexible photovoltaic three-rope system, a buffer damping filling rope clamp hole is additionally arranged. Fatigue damage generated when the structure bears wind load is relieved, prestress loss is reduced, and photovoltaic panel damage caused by overlarge deflection is relieved. The design of the node can greatly improve the installation efficiency of the flexible three-cable photovoltaic support, prolongs the service life of the whole structure, reduces the cost of later operation and maintenance of the structure, and assists the further development of the photovoltaic industry.

Description

Technical Field

[0001] The present invention specifically relates to the technical field of solar photovoltaics, and in particular is a flexible photovoltaic three-cable system with a damping-adjustable prestressed cable connection node. Background Art

[0002] Since its advent, flexible photovoltaic brackets have gradually become the main force in the field of photovoltaic brackets with their large span and low steel consumption. At present, traditional flexible photovoltaic systems can be divided into double-cable systems, three-cable systems, etc. according to the spatial configuration of prestressed cables. In the existing three-cable system, the spatial connection method between component cables and load-bearing cables is mainly formed by splicing round steel pipes in a triangular shape to form a support system, but its adaptability is not strong, especially for the height changes of the load-bearing cables along the direction of the prestressed cables. It cannot adapt quickly and needs to be designed in advance; for wind vibration caused by wind load, the shock absorption and energy consumption effect is poor, causing fatigue damage to the prestressed cables, and also affecting the service life of photovoltaic panels.

[0003] In the existing flexible photovoltaic support system, the present invention provides a prestressed cable connection node with adjustable damping, aiming at the spatial configuration of the connection node of the component cable and the load-bearing cable in the three-cable system. The node can be adjusted at any time during installation without pre-design to adapt to the different spatial configurations of the component cable and the load-bearing cable connection nodes, including the height change of the load-bearing cable, and the height difference change of the component cables with different inclination angles of the photovoltaic panel, thereby improving the installation speed of the flexible photovoltaic three-cable system, shortening the construction period and greatly improving the adaptability of the system. The present invention fills damping and buffering materials at each connection point to effectively mitigate the adverse effects of wind vibration, improve the service life of the prestressed cables and photovoltaic panels, and reduce costs. Summary of the invention

[0004] In order to improve the spatial configuration adaptability of the component cables and load-bearing cables of the existing flexible photovoltaic three-cable system and mitigate the adverse effects of wind vibration, the present invention "a flexible photovoltaic three-cable system with damping adjustable prestressed cable connection node" adopts the following technical solutions:

[0005] A flexible photovoltaic three-cable system with damping adjustable prestressed cable connection nodes, the main body, through mutually welded tripods and triangular braces, constitutes the main force-bearing structure;

[0006] The telescopic part is connected to the main part by bolts and is composed of an external sleeve and a telescopic component, which satisfies the flexible photovoltaic three-cable system, the height change of the load-bearing cable along the direction of the prestressed cable, and at the same time, satisfies the different height differences generated by the component cables when adapting to different inclination angles of the photovoltaic panels;

[0007] The rope clamp part and the telescopic component in the telescopic part are connected by bolts, allowing the component cables and load-bearing cables to pass through the rope clamp holes and be incorporated into the entire flexible photovoltaic three-cable system to play a role.

[0008] As a further technical solution of the present invention, the flexible photovoltaic three-cable system with damping-adjustable prestressed cable connection node should be composed of a main body part, a telescopic part and a rope clamp part.

[0009] As a further technical solution of the present invention, the tripod in the main body and the external sleeve in the telescopic part are connected by bolts, and damping buffer material is filled at the connection node to achieve the damping adjustment and shock absorption effect.

[0010] The telescopic part and the rope clamp part are connected by bolts, and a buffer damping filling connection part is added to achieve the damping adjustment and shock absorption function.

[0011] When the rope clamp part is connected to the component rope and the load-bearing rope and incorporated into the flexible photovoltaic three-rope system, a buffer damping filling rope clamp hole is added to mitigate the wind vibration effect generated by the component rope and the load-bearing rope when bearing wind loads.

[0012] As a further technical solution of the present invention, the main body should be connected by a tripod and a triangular support through welds, and holes or grooves should be punched or slotted in necessary areas of the main body in order to reduce the dead weight.

[0013] As a further technical solution of the present invention, the telescopic part is composed of an external sleeve and a telescopic assembly. A one-way tooth groove is set on the side of the external sleeve, and a positioning bolt is set to cooperate with a limiting hole set in the telescopic assembly. After the telescopic assembly is terminated, further limiting is performed to maintain stability.

[0014] As a further technical solution of the present invention, the telescopic assembly is provided with a track to cooperate with the external sleeve for stretching.

[0015] As a further technical solution of the present invention, the telescopic assembly is provided with a one-way sliding component, a roller and a spring paddle to form a one-way sliding system, which cooperates with the one-way tooth groove to perform telescoping.

[0016] As a further technical solution of the present invention, the rope clamp part should be spliced ​​from two parts, the main part and the auxiliary part are connected by a connecting shaft, and the auxiliary part can be rotated by the connecting shaft for easy installation.

[0017] As a further technical solution of the present invention, a limiting bolt is provided on the rope clamp part to limit the displacement of the accessory part after installation.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, the main body can be prefabricated in advance, thus avoiding the time cost caused by on-site splicing and welding of the original round tubes and improving the construction efficiency;

[0020] 2. In the present invention, the telescopic part can meet the different spatial configurations of the connection nodes of the component cables and the load-bearing cables in the three-cable system, and can be adjusted at any time without pre-design, thereby reducing labor and time costs, and having stronger adaptability, without causing the trouble of mismatch between design and actual engineering, and improving the efficiency of erecting a three-cable flexible photovoltaic system in a large range and a large span;

[0021] 3. In the present invention, the damping and shock absorption effect is achieved by filling damping materials at the connection nodes between the main body and the telescopic part, and between the telescopic part and the rope clamp part, so as to alleviate the shaking between the components of the connection node when the node is subjected to wind load, reduce fatigue damage, and increase service life;

[0022] 4. In the present invention, the rope clamp part is filled with buffer damping material at the rope clamp hole, which effectively alleviates the wear caused by the swing of the component rope and the load-bearing rope when bearing wind load, slows down the prestress loss and fatigue damage of the prestressed cable, and at the same time, the reduction of deflection can also reduce the damage of the solar panel, thereby increasing the overall life of the structure and reducing the cost of later operation and maintenance;

[0023] 5. The present invention discloses a flexible photovoltaic three-cable system with a prestressed cable connection node with adjustable damping. The three parts can be prefabricated and assembled before construction. The existence of the telescopic part can ensure the adaptability of the node during construction, which will greatly improve the efficiency of building the flexible three-cable system and promote the further development of the photovoltaic industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a spatial three-dimensional schematic diagram of the connection nodes of the present invention.

[0025] Figure 2 It is a three-dimensional schematic diagram of the main part of the connection node of the present invention.

[0026] Figure 3 It is a three-dimensional schematic diagram of the telescopic part space of the connection node of the present invention.

[0027] Figure 4 It is a spatial three-dimensional schematic diagram of the telescopic components in the telescopic part of the connection node of the present invention.

[0028] Figure 5 It is a three-dimensional schematic diagram of the space of the rope clamp part of the connection node of the present invention.

[0029] Figure 6 It is a three-dimensional schematic diagram of the actual application space of the connection nodes of the present invention.

[0030] In the figure: 1-tripod, 2-triangular support, 3-external sleeve, 4-telescopic assembly, 5-telescopic part, 6-rope clamp part, 7-bolt hole, 8-positioning bolt, 9-slot hole, 10-weld, 11-buffer damping, 12-limiting hole, 13-one-way tooth groove, 14-track, 15-spring paddle, 16-one-way sliding part, 17-roller, 18-connecting shaft, 19-limiting bolt, 20-rope clamp main part, 21-rope clamp accessory part, 22-component cable, 23-load-bearing cable. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-6 In an embodiment of the present invention, a flexible photovoltaic three-cable system with a damping-adjustable prestressed cable connection node, the main body, is formed by a tripod 1 and a triangular support 2 connected to each other to form the main force-bearing part of the connection node.

[0033] The telescopic part 5 is connected to the main part and is composed of an external sleeve 3 and a telescopic component 4, which satisfies the height change of the load-bearing cable 23 along the direction of the prestressed cable in the flexible photovoltaic three-cable system, and satisfies the height difference generated by the component cable 22 when adapting to the different inclination angles of the photovoltaic panel;

[0034] The rope clamp part 6 is connected to the telescopic component 4 in the telescopic part, allowing the component cable 22 and the load-bearing cable 23 to pass through the rope clamp hole and be incorporated into the flexible photovoltaic three-cable system to play a role;

[0035] Specifically, the flexible photovoltaic three-cable system with damping adjustable prestressed cable connection node should be composed of three parts: main body parts 1, 2, telescopic part 5, and rope clamp part 6;

[0036] By adopting the above technical solution, the three parts can be prefabricated and assembled in the factory in advance, greatly improving the installation efficiency of the three-cable flexible photovoltaic bracket.

[0037] In the present invention, the main body should be connected by the tripod 1 and the triangular support 2 through 10 welds, and holes or grooves 9 are punched or cut in necessary areas of the main body to reduce deadweight;

[0038] The telescopic part should be composed of a telescopic part 5, an outer sleeve 3 and a telescopic assembly 4, a one-way tooth groove 13 is provided on the side of the outer sleeve 3, and a positioning bolt 8 is provided to cooperate with a limiting hole 12 provided on the telescopic assembly 4, and further limit the position after the telescopic end;

[0039] The rope clamp part 6 is composed of two parts, and the main part 20 and the auxiliary part 21 are connected by a connecting shaft 18;

[0040] By adopting the above technical solution, the telescopic part can meet the different spatial configurations of the connection nodes of the component cables and the load-bearing cables in the three-cable system, and can be adjusted at any time without the need for pre-design, thereby reducing labor and time costs, and has stronger adaptability, and will not cause the trouble of mismatch between design and actual engineering, thereby improving the efficiency of the large-scale and large-span three-cable flexible photovoltaic system.

[0041] Furthermore, the telescopic component 4 is provided with a track 14 to cooperate with the external sleeve 3 for telescoping, and the telescopic component 4 is provided with a unidirectional sliding component 16, a roller 17 and a spring paddle 15 to cooperate with the unidirectional tooth groove 13 for telescoping.

[0042] In this embodiment, the main body and the outer sleeve 3 in the telescopic part 5, the telescopic part 5 and the rope clamp part 6 are connected through the bolt hole 7, and the connection is filled with a buffer damping 11 to achieve the damping adjustment and shock absorption function;

[0043] By adopting the above technical solution, the damping and shock absorption effect is achieved by filling damping material at the connection nodes between the main part and the telescopic part 5, and the telescopic part 5 and the rope clamp part 6, so as to alleviate the shaking between the components of the connection node when the node is subjected to wind load, reduce fatigue damage, and increase service life.

[0044] In this embodiment, when the rope clamp part is connected with the component rope 22 and the load-bearing rope 23 and incorporated into the flexible photovoltaic three-cable system, a buffer damping filling rope clamp hole 11 is added;

[0045] By adopting the above technical solution, the rope clamp part 6 is filled with buffer damping material at the rope clamp hole, which effectively alleviates the wear caused by the swing of the component cables and the load-bearing cables when subjected to wind loads, and slows down the prestress loss and fatigue damage of the prestressed cables. At the same time, the reduction of deflection can also reduce the damage to the solar panels, thereby increasing the overall life of the structure and reducing the cost of subsequent operation and maintenance.

[0046] The working principle of the present invention is: the flexible photovoltaic three-cable system with damping adjustable prestressed cable connection node should be composed of three parts: a main body part, a telescopic part, and a rope clamp part;

[0047] The main body should be connected by a tripod 1 and a triangular support 2 through a weld 10, and holes or grooves 9 are punched or slotted in necessary areas of the main body to reduce deadweight, so as to form the main force-bearing part of the node. At the same time, it can be prefabricated in advance, avoiding the time cost caused by on-site splicing and welding of existing round tubes, thereby improving construction efficiency;

[0048] The telescopic part is connected to the main part, and is composed of an outer sleeve 3 and a telescopic assembly 4. A track 14 is provided on the telescopic assembly 4 for movement in the outer sleeve 3. At the same time, a one-way tooth groove 13 is provided on the side of the outer sleeve 3. The stretching is mainly achieved by a one-way sliding component 16, a roller 17 and a spring pick 15 provided in the telescopic assembly 4, which can achieve linear stretching in the one-way tooth groove 13. Finally, a positioning bolt 8 is provided to cooperate with a limiting hole 12 provided in the telescopic assembly 4, and further limiting is performed after the telescopic movement is terminated to maintain stability.

[0049] The rope clamp part is connected to the telescopic component 4 in the telescopic part, allowing the component cable 22 and the load-bearing cable 23 to pass through the rope clamp hole and be incorporated into the flexible photovoltaic three-cable system. Furthermore, the rope clamp part 6 is spliced ​​from two parts, the main part 20 and the auxiliary part 21 are connected by a connecting shaft 18, and the auxiliary part can be rotated by the connecting shaft 18 for easy installation. Finally, a limit bolt 19 is set to limit the movement of the auxiliary part 21 after installation;

[0050] To achieve the damping and shock absorption, relieve deflection and fatigue damage, increase the overall service life, and reduce the cost in later operation and maintenance. Mainly through the external sleeve 3 in the main part and the telescopic part 5, the telescopic part 5 and the rope clamp part 6, are connected through the bolt hole 7, and fill 11 buffer damping at the connection; the rope clamp part is connected with the component cable 22 and the load-bearing cable 23, and when incorporated into the flexible photovoltaic three-cable system, 11 buffer damping is added to fill the rope clamp hole; to achieve the effect of resisting the adverse effects of wind vibration;

[0051] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A flexible photovoltaic three-cable system with a prestressed cable connection node with adjustable damping, characterized in that: include: Main body part: The main force-bearing part of the connection node is formed by the mutually connected tripod (1) and triangular support (2). The telescopic part is connected to the main body and is composed of an external sleeve (3) and a telescopic component (4). It satisfies the height change of the load-bearing cable (23) along the direction of the prestressed cable in the flexible photovoltaic three-cable system, and at the same time satisfies the height difference generated by the component cable (22) when adapting to the different inclination angles of the photovoltaic panel. Rope clamp part: connected to the telescopic component (4) in the telescopic part, allowing the component cable (22) and the load-bearing cable (23) to pass through the rope clamp hole and be incorporated into the flexible photovoltaic three-cable system to play a role.

2. The flexible photovoltaic three-cable system with adjustable damping prestressed cable connection node according to claim 1 is characterized in that It should consist of three parts: the main body, the telescopic part and the rope clamp part. The main body and the outer sleeve (3) of the telescopic part are bolted together through (7) bolt holes. At the same time, during the connection process with the outer sleeve (3) in the telescopic part, a buffer damping filling connection part (11) is added to achieve the damping adjustment and shock absorption function. The telescopic part and the rope clamp part are bolted together through (7) bolt holes, and a buffer damping filling connection part (11) is added to achieve the damping adjustment and shock absorption function. When the rope clamp part is connected to the component rope (22) and the load-bearing rope (23) and incorporated into the flexible photovoltaic three-rope system, a buffer damping filling rope clamp hole is added (11) to mitigate the wind vibration effect generated by the component rope (22) and the load-bearing rope (23) when bearing wind loads.

3. According to claim 1, the flexible photovoltaic three-cable system with damping adjustable prestressed cable connection node is characterized in that the main part should be connected by a tripod (1) and a triangular support (2) through (10) welds, and at the same time, holes or grooves (9) are punched in necessary areas of the main part to reduce the dead weight.

4. The flexible photovoltaic three-cable system with damping adjustable prestressed cable connection node according to claim 1 is characterized in that the telescopic part (5) is composed of an external sleeve (3) and a telescopic assembly (4), a one-way tooth groove (13) is arranged on the side of the external sleeve (3), and a positioning bolt (8) is arranged to cooperate with a limiting hole (12) arranged on the telescopic assembly (4), and further limiting is performed after the telescopic termination to maintain stability.

5. The flexible photovoltaic three-cable system with adjustable damping prestressed cable connection node according to claim 1 is characterized in that the telescopic component (4) is provided with (14) a track to cooperate with the external sleeve (3) for stretching.

6. According to claim 4, the flexible photovoltaic three-cable system with damping adjustable prestressed cable connection node is characterized in that the telescopic component (4) is provided with (16) a one-way sliding component, a roller (17) and a spring paddle (15), which cooperates with the one-way tooth groove (13) to perform telescoping.

7. According to claim 1, the flexible photovoltaic three-cable system with damping adjustable prestressed cable connection node is characterized in that the rope clamp part (6) is spliced ​​from two parts, the main part (20) and the auxiliary part (21) are connected by a connecting shaft (18), and the auxiliary part can be rotated by the connecting shaft (18) for easy installation.

8. The flexible photovoltaic three-cable system with adjustable damping prestressed cable connection node according to claim 7 is characterized in that a limit bolt (19) is provided on the rope clamp part (6) to limit the movement of the accessory part (21) after installation.

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