Flexible photovoltaic support main cable end prestress connecting structure

Abstract

The utility model belongs to the technical field of photovoltaic supports, and particularly relates to a flexible photovoltaic support main cable end prestress connecting structure which comprises a top end stand column, two main cable connecting seats and a rigging, and the two main cable connecting seats are fixedly connected to the front side and the rear side of the upper surface of the top end stand column. The two rigging bodies are rotationally connected between the two main cable connecting bases through main cable pin shafts, supporting pipe sleeves are rotationally connected to the main cable pin shafts and connected with spring dampers, the other ends of the spring dampers are fixedly connected with main cable anchorage devices, and main cables are arranged in the middles of the main cable anchorage devices. According to the flexible photovoltaic support main cable end prestress connecting structure, due to the fact that the function that the shaft rotates at any angle is utilized in the device, field random adjustment is achieved. Compared with a traditional connection mode of a single stay cable and a column head, the device is connected through two U-shaped bolt conversion connectors, uniform distribution and balance of pulling force of the stay cable and a main lock are achieved, and the stress eccentricity condition does not exist.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic brackets, in particular to a prestressed connection structure for the end of the main cable of a flexible photovoltaic bracket. Background Technique

[0002] A flexible photovoltaic bracket is a photovoltaic installation system with a large span, high clearance, and multi-connected span structure. It provides support reaction forces by tensioning prestressed steel wires and using rigid structures and outer stay cables to adapt to complex terrains and changing environments. It can be flexibly adjusted according to various factors such as terrain, lighting conditions, and seasonal changes to maximize the power generation efficiency of photovoltaic modules. It is not only applicable to complex terrains such as mountains, hills, and plains but also can achieve the structure of rigid columns, foundations, and flexible supports in water environments such as lakes and fish ponds.

[0003] At present, the main cable connection method for the end column head of the flexible photovoltaic bracket has an overly complex structure, which is not conducive to on-site angle adjustment. Moreover, the main stressed cable is directly anchored to the steel plate and connected to the column head through U-bolts. The strength of the U-bolts is much lower than that of the steel strands, and the U-bolts are easily pulled off in extreme weather such as strong winds. And according to past construction experience, when the main cable and the stay cable are anchored and the installation equipment is removed, there will be a springback, resulting in the prestress of the main cable not meeting the design requirements after installation.

[0004] Therefore, we propose a prestressed connection structure for the end of the main cable of a flexible photovoltaic bracket to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a prestressed connection structure for the end of the main cable of a flexible photovoltaic bracket to solve the problem of springback after the installation equipment is removed as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A prestressed connection structure for the end of the main cable of a flexible photovoltaic bracket, including a top column, a main cable connection seat, and a rigging. The two main cable connection seats are fixedly connected to the front and rear sides of the upper surface of the top column. The two riggings are rotationally connected between the two main cable connection seats through a main cable pin shaft. A support pipe sleeve is rotationally connected to the main cable pin shaft. The support pipe sleeve is connected with a spring damper, and the other end of the spring damper is fixedly connected with a main cable anchor. A main cable is arranged in the middle of the main cable anchor.

[0007] Preferably, a stay cable pin shaft is rotatably connected to the left side of the main cable connecting seat. The left side of the rigging is rotatably connected to the stay cable pin shaft. A roller is rotatably connected between the main cable connecting seat and the rigging. The U-bolt is connected to the middle of the roller. The outer end of the U-bolt is fixedly connected to a stay cable adapter plate. A stay cable anchor is fixedly connected to the upper surface of the stay cable adapter plate. A stay cable connecting gasket is fixedly connected to the middle of the stay cable anchor. The stay cable is arranged in the middle of the stay cable connecting gasket. The stay cable is rotatably connected to the main cable connecting seat through the stay cable pin shaft, which can effectively disperse and resist forces from different directions and enhance the structural stability of the entire photovoltaic support system. At the same time, the rotational connection of the roller and the U-bolt reduces the friction and stress concentration of the stay cable during the force application process, further improving the stability of the system.

[0008] Preferably, the main cable connecting seat is made of high-strength alloy material and its surface is subjected to anti-corrosion treatment to improve its durability and corrosion resistance. At the same time, a double fixing method of bolts plus welding is adopted between the connecting seat and the top column to ensure the firmness and safety of the connection.

[0009] Preferably, a lubricating layer is provided inside the support pipe sleeve to reduce the frictional resistance of the main cable pin shaft during rotation, improve the rotation efficiency and extend the service life. In addition, scale marks are provided on the outside of the support pipe sleeve to facilitate the precise control of the prestress value of the main cable during installation and debugging.

[0010] Preferably, the spring damper has an adjustable damping coefficient and can flexibly adjust the damping force according to the actual working environment and load conditions of the photovoltaic support, effectively absorbing and dispersing vibrations and stresses caused by factors such as wind force and temperature changes, and protecting the stability of the photovoltaic modules and the support structure.

[0011] Preferably, the main cable anchor is made of high-strength and corrosion-resistant alloy steel material, which can ensure that the main cable is firmly locked in the anchor and prevent loosening or falling off. At the same time, the surface of the anchor is specially treated to increase the friction force with the main cable and improve the reliability of the connection.

[0012] Preferably, the stay cable system uses high-strength steel strands as the stay cable material, which has excellent tensile strength and fatigue resistance. A precise fit design is adopted between the stay cable pin shaft and the main cable connecting seat to ensure the smoothness and stability of the stay cable during rotation. In addition, the design of the roller and the U-bolt reduces the friction between the stay cable and the connecting components and improves the overall efficiency of the system.

[0013] Preferably, the stay cable adapter plate and the stay cable anchor are connected by high-strength bolts to ensure a firm and reliable connection. At the same time, the design of the stay cable adapter plate takes into account the convenience of installation and maintenance, facilitating adjustment or replacement when needed.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. For the prestressed connection structure at the end of the main cable of the flexible photovoltaic support, due to the function of the shaft rotating at any angle in this device, on-site adjustment can be achieved arbitrarily. For the traditional connection method between a single stay cable and the column head, this device uses two U-bolt conversion joints for connection, realizing the uniform distribution and balance of the tensile forces of the stay cable and the main cable, and there is no situation of eccentric force.

[0016] 2. For the prestressed connection structure at the end of the main cable of the flexible photovoltaic support, the damping spring in this device can achieve the loading of the required prestress value, and this prestress can exist throughout the entire service life of the support. Due to the compressibility of the damping spring, a flexible connection between the main cable and the column head is realized. The U-bolt connected to the stay cable can tension the stay cable to ensure reliable connection of the stay cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall front structural schematic diagram of the present utility model;

[0018] Figure 2 is the overall top view structural schematic diagram of the present utility model;

[0019] Figure 3 is the overall side view structural schematic diagram of the present utility model;

[0020] Figure 4 is the overall side view structural schematic diagram of the present utility model.

[0021] In the figure: 1 rigging, 2 main cable connection seat, 3 stay cable adapter plate, 4 U-bolt, 5 stay cable connection gasket, 6 main cable pin, 7 stay cable pin, 8 roller, 9 support sleeve, 10 spring damper, 11 main cable anchor, 12 stay cable anchor, 13 stay cable, 14 top column, 15 main cable. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4, the present utility model provides a technical solution: a prestressed connection structure for the end of the main cable of a flexible photovoltaic support, including a top column 14, a main cable connection seat 2 and a cable fitting 1. Two main cable connection seats 2 are fixedly connected to the front and rear sides of the upper surface of the top column 14. The main cable connection seat 2 is made of high-strength alloy material and its surface is subjected to anti-corrosion treatment to extend the service life and reduce the performance degradation and safety hazards caused by corrosion. As the support foundation of the entire connection structure, it bears the forces from the main cable 15 and other connection components, provides a stable support platform, and ensures the stability of the entire photovoltaic support system.

[0024] Two cable fittings 1 are rotatably connected between two main cable connection seats 2 through a main cable pin 6. Through the rotational connection of the main cable pin 6, the flexible connection between the cable fitting 1 and the main cable connection seat 2 is realized, which is convenient for installing and adjusting the prestress. A support pipe sleeve 9 is rotatably connected to the main cable pin 6 to enhance the stability of the main cable pin 6 and prevent it from deforming due to excessive force. A lubricating layer is provided inside the support pipe sleeve 9. The support pipe sleeve 9 is connected with a spring damper 10. The spring damper 10 has an adjustable damping coefficient to reduce the vibration of the photovoltaic support caused by external factors such as wind force and temperature change, and protect the photovoltaic modules. The other end of the spring damper 10 is fixedly connected to a main cable anchor 11. The main cable anchor 11 is made of high-strength and corrosion-resistant alloy steel material to ensure that the main cable 15 can be firmly fixed on the anchor and prevent it from falling off due to excessive tension. The main cable 15 is arranged in the middle of the main cable anchor 11.

[0025] A stay cable pin 7 is rotatably connected to the left side of the main cable connection seat 2. The left side of the cable fitting 1 is rotatably connected to the stay cable pin 7. A roller 8 is rotatably connected between the main cable connection seat 2 and the cable fitting 1. A U-bolt 4 is connected to the middle of the roller 8 to provide a reliable connection point and ensure that the stay cable can stably transmit the tension. The outer end of the U-bolt 4 is fixedly connected to a stay cable adapter plate 3. A stay cable anchor 12 is fixedly connected to the upper surface of the stay cable adapter plate 3 and is made of high-strength and corrosion-resistant material to ensure that the stay cable can be firmly fixed on the anchor. A stay cable connection gasket 5 is fixedly connected to the middle of the stay cable anchor 12. The stay cable adapter plate 3 and the stay cable anchor 12 are connected by high-strength bolts to ensure a firm and reliable connection. The stay cable 13 is arranged in the middle of the stay cable connection gasket 5. The stay cable 13 system uses high-strength steel strands as the material of the stay cable 13, which can bear a large tensile force and provide a stable supporting force.

[0026] Working Principle: First, the main cable pin 6 is precisely installed between the two main cable connection bases 2, providing a foundation for the rotational connection of the rigging 1. Next, the stay cable pin 7 is installed and equipped with a roller 8, ensuring that the left side of the rigging 1 can flexibly rotate and connect to the stay cable pin 7. Subsequently, the roller 8 is secured with a U-bolt 4, and the stay cable adapter plate 3 is installed. The stay cable connection gasket 5 is fastened to its upper surface, preparing for the placement of the stay cable 13. The stay cable 13 is passed through the center of the stay cable connection gasket 5, tensioned, and securely anchored with an anchor 12 to enhance the stability of the overall structure. Next, the main cable 15 is passed through the main cable pin 6, and the support sleeve 9 and spring damper 10 with adjustable damping coefficient are installed in sequence. The lubricating layer inside the support sleeve 9 helps reduce friction and improve rotational efficiency. The main cable 15 is tensioned until the required prestress value is reached, and then anchored with the main cable anchor 11 to ensure that the main cable is stable and not loose. Finally, according to the stability of the overall structure and the distribution of prestress, the U-bolts 4 are adjusted to further tighten the stay cables 13 to achieve optimal structural performance.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A prestressed connection structure for the end of the main cable of a flexible photovoltaic support, comprising a top column (14), a main cable connection seat (2) and a rigging (1), characterized in that: Two of the main cable connection seats (2) are fixedly connected to the front and rear sides of the upper surface of the top column (14). Two of the riggings (1) are rotatably connected between the two main cable connection seats (2) through main cable pins (6). A support pipe sleeve (9) is rotatably connected to the main cable pin (6). The support pipe sleeve (9) is connected to a spring damper (10). The other end of the spring damper (10) is fixedly connected to a main cable anchor (11). A main cable (15) is arranged in the middle of the main cable anchor (11).

2. The prestressed connection structure at the end of the main cable of a flexible photovoltaic support according to claim 1, wherein: A stay cable pin (7) is rotatably connected to the left side of the main cable connection seat (2). The left side of the rigging (1) is rotatably connected to the stay cable pin (7). A roller (8) is rotatably connected between the main cable connection seat (2) and the rigging (1). A U-bolt (4) is connected to the middle of the roller (8). The outer end of the U-bolt (4) is fixedly connected to a stay cable adapter plate (3). A stay cable anchor (12) is fixedly connected to the upper surface of the stay cable adapter plate (3). A stay cable connection gasket (5) is fixedly connected to the middle of the stay cable anchor (12). A stay cable (13) is arranged in the middle of the stay cable connection gasket (5).

3. The prestressed connection structure for the main cable end of a flexible photovoltaic support according to claim 1, characterized in that: The main cable connection seat (2) is made of high-strength alloy material and its surface is subjected to anti-corrosion treatment.

4. A prestressed connection structure for the main cable end of a flexible photovoltaic support according to claim 1, characterized in that: A lubricating layer is arranged inside the support pipe sleeve (9).

5. A prestressed connection structure for the main cable end of a flexible photovoltaic support according to claim 1, characterized in that: The spring damper (10) has an adjustable damping coefficient.

6. The prestressed connection structure of the main cable end of a flexible photovoltaic support according to claim 1, wherein: The main cable anchor (11) is made of high-strength and corrosion-resistant alloy steel material.

7. A prestressed connection structure for the main cable end of a flexible photovoltaic support according to claim 2, characterized in that: The stay cable (13) system uses high-strength steel strands as the stay cable (13) material.

8. A prestressed connection structure for the main cable end of a flexible photovoltaic support according to claim 2, characterized in that: The stay cable adapter plate (3) and the stay cable anchor (12) are connected by high-strength bolts to ensure reliable and firm connection.

Images