Column head, end support, and photovoltaic support system

Abstract

The present application discloses a column head, an end support, and a photovoltaic support system, wherein the column head comprises a pin, a pin hole, and a main cable adjustment hole, the pin and the main cable adjustment hole are provided on a column, the pin is mounted in the pin hole, two ends of the pin are exposed through the pin hole to form an extended section, and the extended section is provided with a locking structure for limiting the pin in an axial direction thereof, such that a pin-connected joint integrating the pin and the column head is formed; adjustment of a pitch angle of a main cable is achieved in the main cable adjustment hole, the pin is provided with a recessed boss, the recessed boss is provided with a main cable fixing hole, the main cable passes through the main cable adjustment hole and the main cable fixing hole and is then secured by an anchoring structure, and the anchoring structure abuts against the recessed boss. In the present solution, a pin hole and a main cable adjustment hole are provided on a column, and a pin is inserted into the pin hole so as to form a column head on the column. This eliminates the need to add components to the column to form a structure for mounting the pin and the main cable, thereby reducing the number of components, eliminating the column head assembly process and the process for assembling the column head on the column, and simplifying the assembly process.

Description

A column head, end bracket and photovoltaic support system

[0001] This application claims priority to Chinese Patent Application No. 202411458330.5, filed on October 18, 2024, entitled "A Column Head, End Bracket and Photovoltaic Bracket System", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of new energy technology, and in particular to a column head, end bracket and photovoltaic support system. Background Technology

[0003] Cable-stayed photovoltaic (PV) supports are a type of support structure used in solar power plants to support PV modules. A cable-stayed PV support system includes end supports, middle supports, cables, and wind-resistant structures. The end supports are located at the ends of the cable-stayed PV support system, and the cables include main cables and stabilizing cables. The main function of the end supports is to constrain the two ends of the main cables.

[0004] The end support includes a column 01, a column tension pile, a tie rod assembly 02, and a tie rod assembly tension pile. The column 01 is mounted on the column tension pile, and the tie rod assembly 02 is connected to the tie rod assembly tension pile. The column head 03 of the column 01 of the end support has the function of connecting the column 01, the main cable 04, and the tie rod assembly 02, and enabling the main cable 04 and the tie rod assembly 02 to be adjusted within a certain angle range.

[0005] In the related technology, as shown in Figure 1, the column head 03 includes a column head plate 031, ear plates 032, and a pin 033. The column head plate 031 is installed at the top of the column 01. The column head plate 031 is provided with ear plates 032. There are two ear plates 032 arranged in parallel. The ear plates 032 have pin holes for installing the pin 033. The part of the pin 033 located between the two ear plates 032 has a hole for connecting with the main cable 04. The main cable 04 is angled between the two ear plates 032. The part of the pin 033 located outside the two ear plates 032 is connected to the inclined tie assembly 02. The part of the pin 033 located outside the two ear plates 032 has a pin for axially limiting the pin 033.

[0006] In related technologies, the column head 03 comprises a large number of parts. Not only do each part need to be manufactured individually, but these individually manufactured parts must also be assembled to form the column head 03. The column head 03 then needs to be assembled with the column of the end bracket. As can be seen from the above, the assembly process of the column head 03 involves not only the assembly of the column head 03 itself, but also the assembly of the column head 03 with the column, resulting in a complex assembly process and low assembly efficiency for the end bracket with the column head 03.

[0007] Therefore, how to simplify the assembly process of end supports with column heads in order to improve the assembly efficiency of end supports has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0008] This application proposes a column head to simplify the assembly process of end supports with column heads and improve the assembly efficiency of end supports. This application also proposes an end support and a photovoltaic support system.

[0009] To achieve the above objectives, this application provides a column head for fixing the main cable, including a pin, a pin hole adapted to the pin, and a main cable adjustment hole, wherein the pin hole and the main cable adjustment hole are formed on the column of the end bracket;

[0010] The pin is inserted into the pin hole, and both ends of the pin are exposed outside the pin hole to form an extension section. A locking structure is provided on the extension section to form a pin node that integrates the pin and the pin head.

[0011] The pin is provided with a recessed platform, and a main cable fixing hole adapted to the main cable is opened at the center of the recessed platform. The main cable passes through the main cable adjustment hole and the main cable fixing hole in sequence and is then fixed by the anchoring structure. The anchoring structure abuts against the recessed platform.

[0012] The pitch angle of the main cable can be adjusted through the main cable adjustment hole.

[0013] Preferably, in the above-mentioned column head, the locking structure includes a pin and a socket adapted to the pin. The pin passes through the socket so that when the pin is under force, it is blocked by the pin and will not slip out of the pin hole.

[0014] Preferably, in the above-mentioned pin head, the locking structure includes a retaining ring and an annular groove adapted to the retaining ring. After the retaining ring is embedded in the annular groove, it has a protrusion relative to the surface of the pin, so that the pin is blocked by the protrusion when it is under force and will not slip out of the pin hole.

[0015] Preferably, in the above-mentioned column head, the anchoring structure includes a wedge anchor and a compression anchor, wherein the wedge anchor abuts against the concave platform and its contact surface is located within the cross-section of the concave platform, and the compression anchor is located at the end of the main cable.

[0016] Preferably, in the aforementioned column head, the main cable adjustment hole is opened through the column, and the main cable adjustment hole has space along the length direction of the column for adjusting the pitch angle of the main cable.

[0017] Preferably, the column head further includes a reinforcing plate, the reinforcing plate having a plate hole corresponding to the pin hole position, and the pin shaft passing through the pin hole and the plate hole in sequence and then being fixed by a locking structure.

[0018] Preferably, in the above-mentioned column head, the reinforcing plate is a U-shaped cover plate, and the side edge of the U-shaped cover plate is welded to the column.

[0019] An end bracket includes a column head and a tie rod assembly as described in any of the above embodiments, one end of the tie rod assembly being connected to an extension of the pin shaft of the column head, and the other end of the tie rod assembly being fixed to a ground foundation.

[0020] Preferably, in the above-mentioned end bracket, the connection position between the inclined tie assembly and the pin extension is located between the locking structure and the reinforcing plate.

[0021] An end support includes a column head and a cable tie assembly as described in any of the above embodiments. The column head has a column consisting of a concrete pipe pile and an end steel column. The lower end of the concrete pipe pile is anchored to the ground foundation, and the end steel column is provided at the upper end of the concrete pipe pile. The end steel column has pin holes and main cable adjustment holes.

[0022] Preferably, in the above-mentioned end support, the main cable with the higher height among two adjacent main cables is the upper main cable, and the main cable with the lower height among two adjacent main cables is the lower main cable. An end beam is provided between the two columns corresponding to the positions of the upper and lower main cables. The two ends of the end beam are respectively connected to the end steel columns of the two columns to enhance the stability of the end support.

[0023] Preferably, in the aforementioned end support, the inclined cable assembly includes an inclined cable and an extended anchor rod, one end of the inclined cable is connected to an extension of the pin shaft, and the other end of the inclined cable is anchored to the ground foundation through the extended anchor rod.

[0024] A photovoltaic support system includes an end support and a middle support as described in any of the above embodiments, wherein the main cable is fixed by the end support and the middle support and is used to place photovoltaic modules.

[0025] Preferably, in the above-described photovoltaic support system, the central support includes:

[0026] A central crossbeam is provided along the length direction perpendicular to the main cable, and the central crossbeam includes a fastener for fixing the main cable;

[0027] At least two central columns are arranged side by side along the length of the central beam to support the central beam. One end of each central column is connected to the central beam, and the other end of each central column is anchored to the ground foundation.

[0028] Preferably, in the above-mentioned photovoltaic support system, the fixing component includes a raising platform, a second connecting plate, and a first U-bolt;

[0029] One end of the elevation platform is fixedly connected to the central crossbeam, and the other end of the elevation platform is connected to the second connecting plate. The second connecting plate has mounting holes that mate with the first U-bolt. The first U-bolt is locked onto the second connecting plate by a nut. The first U-bolt is used to fix the main cable to the second connecting plate.

[0030] Preferably, in the above-mentioned photovoltaic support system, the fixing component further includes a reinforcing seat, which is fixedly disposed on the opposite side of the side where the second connecting plate is connected to the raising platform. The reinforcing seat protrudes from the plane where the second connecting plate is located, and the reinforcing seat has a through hole that corresponds to and communicates with the position of the mounting hole.

[0031] The reinforcing seat has a limiting groove for the main cable to be embedded in.

[0032] Preferably, in the above-mentioned photovoltaic support system, the central support also includes a side column located at at least one end of the central crossbeam along its length. One end of the side column is connected to the central crossbeam via a side cable, and the other end of the side column is anchored to the ground foundation.

[0033] Preferably, in the above-described photovoltaic support system, the side column includes a side column beam and at least two parallel supporting columns, the direction of which the supporting columns are arranged side by side is consistent with the length extension direction of the central beam, the side column beam is used to connect at least two of the supporting columns, and the side column beam is connected to the side cable.

[0034] Preferably, the photovoltaic support system further includes a reinforcing beam to enhance the strength of the photovoltaic support system;

[0035] The reinforcing beam includes a reinforcing crossbeam and a reinforcing column. The reinforcing crossbeam is arranged along the length direction perpendicular to the main cable. The reinforcing column is arranged on the reinforcing crossbeam. The position of the reinforcing column corresponds to that of the main cable. The first end of the reinforcing column in the length extension direction is connected to the reinforcing crossbeam, and the second end of the reinforcing column in the length extension direction is connected to the main cable.

[0036] Preferably, in the above-described photovoltaic support system, the reinforcing column is connected to the main cable via a connector.

[0037] The connector includes a third connecting plate and a third U-bolt. The third connecting plate is connected to the reinforcing column. The third connecting plate has a hole for the third U-bolt to pass through. The third U-bolt is locked to the third connecting plate by a nut. The third U-bolt is used to fix the main cable to the third connecting plate.

[0038] A reinforcing member is provided between the third connecting plate and the reinforcing column to enhance the connection strength between the third connecting plate and the reinforcing column.

[0039] The column head provided in this embodiment includes a pin, a pin hole, and a main cable adjustment hole. The pin and the main cable adjustment hole are formed on the column. The pin hole is used to install the pin and penetrates through the column. Both ends of the pin are exposed outside the pin hole to form an extension section. The extension section has a locking structure, which limits the pin along its own axis, forming a pin joint that integrates the pin and the column head. The main cable adjustment hole penetrates through the column head. The pin has a recess, and a main cable fixing hole adapted to the main cable is formed at the center of the recess. After the pin is installed in the pin hole, the main cable fixing hole communicates with the main cable adjustment hole. The main cable passes through the main cable adjustment hole and the main cable fixing hole and is fixed by an anchoring structure. The anchoring structure abuts against the recess, and the main cable can adjust its pitch angle in the main cable adjustment hole. This solution creates a column head on the column by opening pin holes and main cable adjustment holes on the column, with the pin inserted into the pin holes. This eliminates the need to add parts to the column to form a structure for mounting the pin and main cable. On the one hand, it reduces the number of parts and lowers the cost of the column head. On the other hand, it eliminates the process of assembling the column head and the process of assembling the column head on the column, simplifying the assembly process of the end bracket with the column head and improving the assembly efficiency of the end bracket.

[0040] This solution also discloses an end bracket, including the column head and diagonal bracing assembly described in any of the above solutions. One end of the diagonal bracing assembly is connected to the extension of the pin shaft of the column head, and the other end of the diagonal bracing assembly is fixed to the ground foundation. Since the column head has the above-mentioned technical effects, the end bracket with the column head also has the same technical effects, and will not be described in detail here.

[0041] This solution also discloses a photovoltaic support system, including the end supports and middle supports described in any of the above solutions. The two ends of the main cable are fixed by the end supports, and the middle of the main cable is fixed by the middle support. The main cable is used to place photovoltaic modules. Since the end supports have the above-mentioned technical effects, the photovoltaic support system with the end supports also has the same technical effects, which will not be described in detail here. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort, and this application can be applied to other similar scenarios based on the provided drawings. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0043] Figure 1 is a schematic diagram of the structure of the existing end bracket;

[0044] Figure 2 is a schematic diagram of the end bracket of this application;

[0045] Figure 3 is a structural schematic diagram of the column head of this application;

[0046] Figure 4 is a schematic diagram of the fit between the pin and the main cable in this application;

[0047] Figure 5 is a top view of the engagement between the pin and the main cable in this application;

[0048] Figure 6 is a schematic diagram of the structure of the flexible photovoltaic support provided in an embodiment of this application;

[0049] Figure 7 is a structural schematic diagram of an end bracket provided in another embodiment of this application;

[0050] Figure 8 is a magnified view of part A in Figure 7;

[0051] Figure 9 is a schematic diagram of the structure of the central support provided in an embodiment of this application;

[0052] Figure 10 is a magnified view of part B in Figure 9;

[0053] Figure 11 is a schematic diagram of the side column structure of the central support provided in an embodiment of this application;

[0054] Figure 12 is a structural schematic diagram of the reinforcing beam provided in an embodiment of this application;

[0055] Figure 13 is a magnified view of part C in Figure 12.

[0056] The attached diagrams are explained as follows: 01-Column; 02-Tie assembly; 03-Column head; 031-Column head plate; 032-Ear plate; 033-Pin; 04-Main cable; 1-Main cable; 2-Pin; 21-Extension section; 22-Concave platform; 23-Main cable fixing hole; 3-Pin hole; 4-Main cable adjusting hole; 5-Column; 51-Concrete pipe pile; 52-End steel column; 53-End crossbeam; 54-Steel structure column base; 541-Base plate; 542-Side plate; 6-Locking structure; 61-Pin; 62-Insertion hole; 7-Anchoring structure; 71-Wedge anchor; 72-Extrusion anchor; 8-Reinforcing plate; 9-Tie assembly; 91-Tie cable; 92-Expanded anchor rod; 10-Column head; 11-End bracket; 12-Hook bolt; 13-Tension pile of column; 14-Tension pile of inclined tension component; 15-Central support; 151-Central crossbeam; 152-Central column; 153-Fixing component; 1531-Elevating platform; 1532-Second connecting plate; 1533-First U-bolt; 1534-Reinforcing seat; 154-Side column; 1541-Side column crossbeam; 1542-Column; 155-Side cable; 16-Reinforcing beam; 161-Reinforcing crossbeam; 162-Reinforcing column; 163-Connector; 1631-Third connecting plate; 1632-Third U-bolt; 1633-Reinforcing component. Detailed Implementation

[0057] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. The described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0058] It should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in these embodiments can be arbitrarily combined, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features.

[0059] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0060] In the description of the embodiments of this application, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more.

[0061] As shown in Figure 1, the column head 03 includes a column head plate 031, an ear plate 032, and a pin 2033. The column head plate 031 and the ear plate 032 are both independent parts relative to the column 5. In the prior art, the main cable 104 and the cable tie assembly 902 are connected to the column 5 via the pin 2033 by adding parts to the column 5.

[0062] Referring to Figures 2-5, some embodiments of this application disclose a column head 10, which has the functions of connecting the column 5, the main cable 1 and the cable tie assembly 9, and enabling the main cable 1 and the cable tie assembly 9 to be adjusted within a certain angle range.

[0063] The column head 10 includes a pin 2, a pin hole 3, and a main cable adjustment hole 4. The pin 2 and the main cable adjustment hole 4 are opened on the column 5. The pin hole 3 is used to install the pin 2. The pin hole 3 is opened through the column 5, and the pin 2 passes through the pin hole 3 to realize the installation of the pin 2 on the column head 10.

[0064] The two ends of the pin 2 are exposed in the pin hole 3 to form an extension section 21, as shown in Figure 3. The two ends of the pin 2 protrude from the column head 10. The part of the pin 2 that protrudes from the column head 10 is the extension section 21 of the pin 2 outside the column head 10. The extension section 21 has a locking structure 6. The locking structure 6 is used to limit the pin 2 along its own axis direction to prevent the pin 2 from coming out of the pin hole 3, so as to form a pin node that integrates the pin 2 and the column head 10.

[0065] The main cable adjustment hole 4 is set through the column head 10. The pin 2 has a recess 22. A main cable fixing hole 23 adapted to the main cable 1 is opened at the center of the platform of the recess 22. The main cable fixing hole 23 corresponds to and is connected to the main cable adjustment hole 4. After the pin 2 is installed in the pin hole 3, the main cable fixing hole 23 is connected to the main cable adjustment hole 4. After the main cable 1 passes through the main cable adjustment hole 4 and the main cable fixing hole 23, it is fixed by the anchoring structure 7. The anchoring structure 7 abuts against the recess 22. The pitch angle of the main cable 1 can be adjusted in the main cable adjustment hole 4.

[0066] This solution forms a column head 10 on the column 5 by opening a pin hole 3 and a main cable adjustment hole 4 on the column 5, and inserting the pin 2 into the pin hole 3. This eliminates the need to add parts to the column 5 to form a structure for installing the pin 2 and the main cable 1. On the one hand, it reduces the number of parts and lowers the cost of the column head 10. On the other hand, it eliminates the process of assembling the column head 10 and the process of assembling the column head 10 on the column 5, simplifying the assembly process of the end bracket 11 with the column head 10 and improving the assembly efficiency of the end bracket 11.

[0067] The column head 10 is preferably located at the end of the column 5 that is not connected to the ground foundation. Alternatively, the column head 10 may not be located at the end of the column 5 that is not connected to the ground foundation, but rather at a distance from the end, which improves the flexibility of the column head 10 in the column 5.

[0068] This solution creates a column head 10 on the column 5 by opening pin holes 3 and main cable adjustment holes 4 on the column 5. This eliminates the need for connecting the column 5 and the column head 10, ensuring the connection strength between the column 5 and the column head 10 and avoiding the impact of unstable connection structure on the connection strength between the column 5 and the column head 10.

[0069] The column head 10 disclosed in this solution, after having pin holes 3 and main cable adjustment holes 4 in the column 5, has its structure outside the pin holes 3 and main cable adjustment holes 4 serving as the structure of the column head 10. Compared with the prior art, this eliminates components such as the column head plate and ear plate, representing a material-reducing design, which is the opposite of the additive design approach for the column head 10 in related technologies. Although this solution achieves the setting of the column head 10 through a material-reducing design, it does not affect the connection strength between the column head 10 and the column 5, nor is the connection strength between the column head 10 and the column 5 affected by the welding quality; in fact, it improves the connection strength between the column head 10 and the column 5 to a certain extent.

[0070] In some embodiments, the locking structure 6 includes a pin 61 and a socket 62, the socket 62 being formed on the pin 2. By engaging the pin 61 and the socket 62, when the pin 2 is subjected to a force along its own axis, the pin 61 can limit the movement of the pin 2, preventing the pin 2 from sliding out of the pin hole 3.

[0071] Pins 61 and holes 62 are provided at both ends of the pin 2 along its own axis to effectively limit the pin 2 along its own axis.

[0072] The angle between the axis of the socket 62 and the axis of the pin 2 is 80°-95°.

[0073] This solution also discloses another embodiment of the locking structure 6, which includes a retaining ring and an annular groove. The annular groove is formed on the pin 2, and the shape of the annular groove is adapted to the retaining ring. The retaining ring is embedded in the annular groove, and the outer wall of the retaining ring protrudes from the outer wall of the pin 2 to form an annular limiting protrusion on the outer wall of the pin 2. This allows the retaining ring to limit the movement of the pin 2 when the pin 2 is subjected to a force along its own axis, preventing the pin 2 from sliding out of the pin hole 3.

[0074] The preferred connection method between the locking structure 6 and the pin 2 is a detachable connection method to facilitate the installation and removal of the pin 2.

[0075] The anchoring structure 7 includes a wedge anchor 71 and a compression anchor 72. The wedge anchor 71 abuts against the platform of the recess 22, and the contact surface of the wedge anchor 71 is located inside the recess 22 to increase the contact area between the wedge anchor 71 and the platform of the recess, reduce the relative wobble between the wedge anchor 71 and the pin 2, and improve the stability of the fit between the wedge anchor 71 and the pin 2.

[0076] As shown in Figures 4 and 5, the recessed platform 22 is a groove-shaped structure formed by cutting the outer wall of the pin 2. The platform surface of the recessed platform 22 is the bottom of the groove-shaped structure, and the bottom of the groove is a plane. Optionally, the groove wall of the groove-shaped structure can fit with the side wall of the clamping anchor 71 to increase the contact area between the clamping anchor 71 and the recessed platform 22, thereby limiting the clamping anchor 71 and further improving the stability of the fit between the clamping anchor 71 and the pin 2.

[0077] The compression anchor 72 is located at the end of the main cable 1.

[0078] The main cable adjustment hole 4 is opened through the column head 10, and the main cable adjustment hole 4 has space for adjusting the pitch angle of the main cable 1 along the length direction of the column 5.

[0079] The main cable adjustment hole 4 can be elongated in cross-section along the length of the column 5. The length of the elongated hole is parallel to the length of the column 5 so that the main cable 1 can move along the opening direction to achieve pitch angle adjustment.

[0080] In an embodiment where the cross-section of the main cable adjustment hole 4 along the length of the column 5 is elongated, the cross-section of the main cable adjustment hole 4 can be oblong, rectangular, or other shapes.

[0081] The cross-section of the main cable adjustment hole 4 along the length of the column 5 is not limited to a long strip hole; it can also be circular, polygonal, or irregular in shape.

[0082] In some embodiments, the pin hole 3 and the main cable adjustment hole 4 are cut by at least one of laser cutting, thermal cutting, flame cutting, cold cutting and water cutting. The specific cutting method is selected by those skilled in the art according to actual needs, and no specific limitation is made here.

[0083] By using a cutting process, the pin hole 3 and the main cable adjustment hole 4 can be manufactured, which can improve quality control and production efficiency.

[0084] Because this solution involves creating pin holes 3 and main cable adjustment holes 4 on the column 5 to form a column head 10, the creation of pin holes 3 and main cable adjustment holes 4 will reduce the strength of the column 5 to some extent. During operation, the position where the pin hole 3 of the column 5 mates with the pin shaft 2 bears a relatively large force. The forces of the cable tie assembly 9 and the main cable 1 are applied to the position where the pin hole 3 is located on the column 5 through the pin shaft 2. To ensure the strength of the position where the pin hole 3 is located on the column head 10, the column head 10 disclosed in this solution also includes a reinforcing plate 8. The reinforcing plate 8 has plate holes corresponding to the position of the pin hole 3. The pin shaft 2 passes through the pin hole 3 and the plate holes and is fixed by the locking structure 6.

[0085] Specifically, the reinforcing plate 8 is welded to the column 5 with the pin hole 3 on at least one side to reinforce the column 5 after the hole is opened, and to prevent the column 5 from yielding and deforming due to stress caused by the hole.

[0086] The pin hole 3 is provided through the column 5. Preferably, there are at least two reinforcing plates 8, with reinforcing plates 8 provided on both sides of the column 5. The reinforcing plates 8 can be a single-layer plate structure or a multi-layer plate structure. The number and structure of the reinforcing plates 8 located at both ends of the pin hole 3 can be the same or different.

[0087] In some embodiments, the reinforcing plate 8 is a U-shaped cover plate, and the side plate edges of the U-shaped cover plate are welded to the column 5. The U-shaped cover plate has a bottom plate and two side plates, which are located at both ends of the axial direction of the pin hole 3, respectively. The side plates have plate holes, and the bottom plate abuts against the end face of the column 5.

[0088] The reinforcing plate 8 adopts a U-shaped cover plate structure. After the U-shaped cover plate is matched with the column 5, it can simultaneously reinforce both sides of the column 5. Compared with the embodiment where the reinforcing plate 8 is a sheet structure, it can further simplify the assembly process of the end bracket 11 with column head 10 and improve the processing efficiency of the end bracket 11.

[0089] In some embodiments, the reinforcing plate 8 is a shell structure adapted to the shape of the column 5. One end of the shell structure is an open end, and the other end opposite the open end is a closed end. The closed end abuts against the end face of the column 5, and the shell structure covers the column 5 through the open end. In this embodiment, the shell structure not only has a plate hole communicating with the pin hole 3, but also a through hole communicating with the main cable adjustment hole 4. In this embodiment, the shell structure can enhance the strength of the outer periphery of the column 5, further reducing the impact of the opening on the strength of the column 5.

[0090] The first end of the column head 10 of the column 5 has a rectangular cross-section perpendicular to the length of the column 5. The end of the column head 10 of the column 5 has four sides, two of which are arranged oppositely for opening pin holes 3, and the other two oppositely arranged sides are used for opening main cable adjustment holes 4. The end of the column head 10 of the column 5 is generally cubic in shape, which can reduce the difficulty of opening pin holes 3 and main cable adjustment holes 4.

[0091] The cross-section of the first end of the column 5 with the column head 10 along the length direction perpendicular to the column 5 can be the same as or different from the cross-section of the second end of the column 5 without the column head 10 along the length direction perpendicular to the column 5. Specifically, the cross-section of the second end of the column 5 along the length direction perpendicular to the column 5 can be rectangular, circular, or other polygonal.

[0092] Optionally, the area of ​​the cross-section of the first end of the column 5 with the column head 10 along the length direction perpendicular to the column 5 is greater than the area of ​​the cross-section of the second end of the column 5 without the column head 10 along the length direction perpendicular to the column 5. This makes the circumferential dimension of the first end of the column 5 greater than the circumferential dimension of the second end of the column 5, thereby making the strength of the first end of the column 5 greater than the strength of the second end of the column 5 and reducing the impact of the opening on the strength of the first end of the column 5.

[0093] Preferably, the dimensions of the first end of the column 5 gradually decrease from the second end of the column 5, or the first end of the column 5 makes a smooth transition to the second end of the column 5, so as to reduce stress concentration.

[0094] In some embodiments, a stepped surface may also be formed between the first end of the column 5 and the middle part of the column 5.

[0095] Although welding is unavoidable in this design, the welding is not applied at the connection point between the column head 10 and the column 5, i.e., it is not the main stress-bearing point of the column head 10. Therefore, the requirements for welding quality are not high, and the welding quality will not significantly affect the connection strength between the column head 10 and the column 5, thus achieving a balance between manufacturing and performance.

[0096] This solution also discloses an end bracket 11, which includes the column head 10 and the inclined tie assembly 9 described in any of the above solutions. One end of the inclined tie assembly 9 is connected to the extension section 21 of the pin 2 of the column head 10, and the other end of the inclined tie assembly 9 is fixed to the ground foundation.

[0097] Since the column head 10 has the above-mentioned technical effects, the end bracket 11 with the column head 10 also has the same technical effects, which will not be described in detail here.

[0098] As shown in Figure 3, the connection position between the inclined tie assembly 9 and the extension section 21 of the pin 2 is located between the locking assembly and the reinforcing plate 8. The locking assembly can simultaneously limit the inclined tie assembly 9 and the pin 2. It can limit the pin 2 not only along its own axis but also limit the inclined tie assembly 9 along the axis of the pin 2, preventing the inclined tie assembly 9 from shaking during operation and affecting its performance.

[0099] As shown in Figure 2, in this scheme, the column 5 with column head 10 is anchored to the ground foundation through column tension pile 13, and the inclined cable assembly 9 is anchored to the ground foundation through inclined cable assembly tension pile 14, ensuring a stable connection between the column 5 and the inclined cable assembly 9 and the ground foundation. The column 5, the inclined cable assembly 9, the column tension pile 13 and the inclined cable assembly tension pile 14 form a triangular structure to provide a stable tension force for the main cable 1.

[0100] In some embodiments, the column tension pile 13 and the inclined tension component tension pile 14 have a connecting structure in between to improve the integrity and stability of the end support 11.

[0101] As shown in Figure 2, a first connecting plate is provided below the column 5. The first connecting plate is fastened to the column tensile pile 13 by bolts. A fixing plate is provided on the side of the first connecting plate facing the column 5. The shape of the fixing plate is adapted to the outer circumference of the column 5. The fixing plate is fastened to the outer circumference of the column 5 by bolts.

[0102] In some embodiments, the extension 21 of the pin 2 is connected to the tie rod 9 via a hinge bolt 12. Specifically, there are two hinge bolts 12, located at both ends of the extension 21 of the pin 2. One end of the hinge bolt 12 is rotatably connected to the pin 2, and the other end of the two hinge bolts is connected to a plate-shaped connector. The plate-shaped connector connects the two hinge bolts 12 together, and the portion of the plate-shaped connector between the two hinge bolts 12 is connected to the tie rod 9. This ensures that the tie rod 9 applies a uniform tension to both ends of the pin 2 through the plate-shaped connector and the hinge bolts 12, thus ensuring that the column 5 is subjected to uniform force at both ends along the axial direction of the pin 2. The hinge bolt 12 is located between the locking structure 6 and the reinforcing plate 8, and the locking structure 6 simultaneously limits the movement of the hinge bolt 12.

[0103] The cable tie assembly 9 is connected to the pin 2 via the hinge bolt 12, which allows for adjustment of the distance between the cable tie assembly 9 and the pin 2. The force exerted by the cable tie assembly 9 on the main cable 1 via the pin 2 can be flexibly adjusted according to actual needs.

[0104] The hinge bolt 12 can rotate relative to the pin 2, meaning that the angle adjustment of the cable tie assembly 9 and the main cable 1 can be adjusted independently, so that the force between the cable tie assembly 9 and the pin 2 is not affected when the angle of the main cable 1 is adjusted.

[0105] The cable-stayed component 9 is at least one of the following: cable-stayed cable, wire rope, cable-stayed steel pipe, and cable-stayed steel bar.

[0106] This solution also discloses an end bracket 11, including a column head 10 and a diagonal bracing assembly 9, wherein the column head 10 is the column head described in any of the above solutions. Since the column head 10 has the above-mentioned technical effects, the end bracket 11 having the column head 10 also has the same technical effects, which will not be described in detail here.

[0107] When used in scenarios where the bottom is water, such as fish ponds, ease of installation needs to be considered. The end bracket 11 adopts an integrated pin column node, which reduces the number of parts and on-site processing, improves the convenience of assembly, and thus improves installation efficiency.

[0108] As shown in Figures 7 and 8, the column 5 of the column head 10 disclosed in this embodiment includes a concrete pipe pile 51 and an end steel column 52. The concrete pipe pile 51 and the end steel column 52 are arranged linearly. Optionally, the concrete pipe pile 51 and the end steel column 52 are arranged coaxially. The lower end of the concrete pipe pile 51 is anchored to the ground foundation, and the upper end of the concrete pipe pile 51 is provided with the end steel column 52. The end steel column 52 has a pin hole 3 and a main cable adjustment hole 4 to form the column head 10 on the end steel column 52.

[0109] In this embodiment, the length of the concrete pipe pile 51 of the column 5 is greater than the length of the end steel column 52. The concrete pipe pile 51 can not only ensure that the end support 11 is stably fixed to the ground foundation, but also withstand the tension of the main cable and the weight of the main cable and other equipment. The end support disclosed in this embodiment adopts the form of a combination of concrete pipe pile 51 and steel structure, which reduces the amount of steel used in the steel structure while ensuring the stability of the end support 11.

[0110] When the geological conditions are poor, such as in fishponds or other locations with water below, cast-in-place piles cannot be used. This solution uses precast pipe piles, and the pile foundation needs to be driven deeper. Therefore, the pipe piles used in this solution are longer.

[0111] The circumferential dimension of the concrete pipe pile 51 is larger than that of the end steel column 52, which increases the overall strength of the column 5 and further improves the compressive and wind resistance of the end support.

[0112] The higher of two adjacent main cables 1 is the upper main cable, and the lower of two adjacent main cables 1 is the lower main cable. An end beam 53 is installed between the two columns 5 corresponding to the positions of the upper and lower main cables.

[0113] As shown in Figures 6, 7 and 8, the two ends of the end beam 53 are connected to the end steel columns 52 of the two end supports, respectively.

[0114] The end crossbeam 53 connects to the columns 5 corresponding to the positions of the upper and lower main cables to improve the stability of the end support. The number of end crossbeams 53 along the length of the end steel column 52 can be one, two, or more.

[0115] Because the upper and lower main cables are at different heights, the height of the column 5 corresponding to the upper main cable is higher than the height of the column 5 corresponding to the lower main cable.

[0116] In some embodiments, the length of the concrete pipe pile 51 of the column 5 corresponding to the upper main cable is equal to the length of the concrete pipe pile 51 of the column 5 corresponding to the lower main cable, and the length of the end steel column 52 of the column 5 corresponding to the upper main cable is greater than the length of the end steel column 52 of the lower main cable.

[0117] In other embodiments, the length of the concrete pipe pile 51 of the column 5 corresponding to the upper main cable is greater than the length of the concrete pipe pile 51 of the column 5 corresponding to the lower main cable, and the length of the end steel column 52 of the column 5 corresponding to the upper main cable is equal to the length of the end steel column 52 of the lower main cable.

[0118] In other embodiments, the lengths of the concrete pipe pile 51 and the end steel column 52 of the column 5 corresponding to the upper main cable are both greater than the lengths of the concrete pipe pile 51 and the end steel column 52 of the column 5 corresponding to the lower main cable.

[0119] Figure 6 shows a portion of the layout of a photovoltaic array, which comprises multiple structures as shown in Figure 6. As shown in Figure 6, the cable-stayed assembly includes a stay cable 91 and an extended anchor rod 92. One end of the stay cable 91 is connected to the extension section 21 of the pin shaft 2, and the other end of the stay cable 91 is anchored to the ground foundation via the extended anchor rod 92.

[0120] The expanded-body anchor bolt 92 is an anchor bolt that increases the anchoring force by increasing the diameter of the anchoring section. It has the advantages of strong anchoring force, strong pull-out resistance, and high stability. It is suitable for complex terrain, is easy to construct, has little disturbance to the environment, and has wide adaptability.

[0121] The end bracket disclosed in this embodiment, the inclined cable assembly and the column 5 are respectively anchored to the ground foundation by the expanded anchor rod 92 and the concrete pipe pile 51. The anchoring strength between the expanded anchor rod 92 and the concrete pipe pile 51 does not affect each other, and can reduce the requirements of the ground foundation. The photovoltaic support system with this end bracket is suitable for fish pond scenarios.

[0122] As shown in Figure 8, the end steel column 52 is connected to the concrete pipe pile 51 through a steel structure column base 54. The steel structure column base 54 includes a base plate 541 and a side plate 542. The base plate 541 is connected to the concrete pipe pile 51. Optionally, the base plate 541 and the concrete pipe pile 51 are connected by bolts. The end steel column 52 has a rectangular cross section along its length. The end steel column 52 has four right angles in its circumference. The two side walls of the end steel column 52 that form right angles are provided with side plates 542. The side plates 542 are perpendicular to the side walls and are connected to the base plate 541.

[0123] The side wall connecting the end steel column 52 and the end crossbeam 53 also includes a mounting plate, which is connected to the two side plates of the side wall and is bolted to the end crossbeam 53.

[0124] Optionally, the base plate is welded to the side plate, and the mounting plate is welded to the side plate. This solution also discloses a photovoltaic support system, including the end support 11 and the middle support 15 described in any of the above solutions. The two ends of the main cable 1 are fixed by the end support 11, and the middle part of the main cable 1 is fixed by the middle support 15. The main cable 1 is used to place photovoltaic modules.

[0125] Since the end bracket 11 has the above-mentioned technical effects, the photovoltaic bracket system with the end bracket 11 also has the same technical effects, which will not be described in detail here.

[0126] In some embodiments, the central support 15 includes a central crossbeam 151 and a central column 152.

[0127] As shown in Figures 6 and 9, the central crossbeam 151 is arranged along the length direction perpendicular to the main cable 1. The central crossbeam 151 includes a fixing member 153 for fixing the main cable 1. At least two central columns 152 are arranged side by side along the length direction of the central crossbeam 151. The central columns 152 are located on the opposite side of the side of the central crossbeam 151 where the fixing member 153 is located. One end of the central column 152 is connected to the central crossbeam 151 along its length direction, and the other end of the central column 152 is anchored to the ground foundation. The central columns 152 are used to support the central crossbeam 151.

[0128] At least two central columns 152 support the central beam 151, ensuring the stability of the central support 15.

[0129] The central crossbeam 151 is a continuous steel beam. A single central crossbeam 151 can support multiple main cables, forming a continuous and stable support structure, which improves the compressive strength of the central support 15.

[0130] Optionally, the central column 152 is a concrete pipe pile, and the central support 15 adopts a combination of concrete pipe piles and steel structure, which reduces the amount of steel used in the steel structure while ensuring the stability of the central support 15.

[0131] As shown in Figure 10, the central beam 151 is connected to the central column 152 through a T-shaped plate and a flat plate. The T-shaped plate includes a horizontal plate parallel to the top surface of the central column 152 and a vertical plate perpendicular to the horizontal plate. The flat plate is connected to the central column 152. The shape of the flat plate is adapted to the end shape of the central column 152. The horizontal plate is fixedly connected to the flat plate, and the vertical plate is connected to the central beam.

[0132] As shown in Figure 10, the central crossbeam 151 is an H-beam, comprising an upper plate, a lower plate, and a middle plate. The upper and lower plates are parallel, and the middle plate is located between the upper and lower plates, perpendicular to both. The lower plate is connected to a vertical plate, and a fastener 153 is installed on the upper plate. Multiple reinforcing plates are provided along the length of the central crossbeam 151.

[0133] As shown in Figure 10, it also includes a clamping plate, which is perpendicular to the plane of the lower plate. The clamping plate has a groove that engages with the lower plate. The sides of the clamping plate located on both sides of the groove are welded to the middle plate and the vertical plate to realize the connection between the middle beam and the T-shaped plate, thereby realizing the connection between the middle beam 151 and the middle column 152.

[0134] The central crossbeam 151 can be composed of multiple H-beams spliced ​​together, with adjacent H-beams connected by connecting plates and bolts. Specifically, a first connecting hole is provided at the end of the intermediate plate of two adjacent H-beams, and a second connecting hole corresponding to and communicating with the first connecting hole is provided on the connecting plate. The connecting plate and the intermediate plate are locked together by bolts that mate with the first and second connecting holes. The connecting plate is parallel to the intermediate plate, and the axis of the bolt is perpendicular to the plane containing the connecting plate and the intermediate plate.

[0135] In some embodiments, the fastener 153 includes a riser 1531, a second connecting plate 1532, and a first U-bolt 1533.

[0136] One end of the elevation platform 1531 is fixedly connected to the middle crossbeam 151, and the other end of the elevation platform 1531 is connected to the second connecting plate 1532. The second connecting plate 1532 has mounting holes that mate with the first U-bolt 1533. The first U-bolt 1533 is locked to the second connecting plate 1532 by a nut. The first U-bolt 1533 is used to fix the main cable on the second connecting plate 1532.

[0137] The riser platform 1531 is designed based on the height of the upper and lower main cables.

[0138] The fastener 153 with the riser 1531 is suitable for connecting the upper main cable and the middle support 15.

[0139] The fastener 153 used to connect the lower main cable to the middle support 15 may consist only of the second connecting plate 1532 and the first U-bolt 1533, without the elevation platform 1531, or it may include the elevation platform 1531.

[0140] Optionally, the riser platform 1531 can be made of H-beams.

[0141] To further enhance the connection strength between the first U-bolt 1533 and the second connecting plate 1532, the fastener 153 also includes a reinforcing seat 1534, which is fixedly disposed on the opposite side of the side where the second connecting plate 1532 is connected to the raising platform 1531. The reinforcing seat 1534 protrudes from the plane where the second connecting plate 1532 is located. The reinforcing seat 1534 has a through hole that corresponds to and communicates with the mounting hole position, which extends the mating length between the fastener 153 and the first U-bolt 1533 and improves the reliability of the first U-bolt 1533 in fixing the main cable 1.

[0142] The reinforcing seat 1534 has a limiting groove for embedding the main cable, which is embedded in the limiting groove.

[0143] The reinforcing seat 1534 also has a groove for limiting the first U-bolt 1533, as shown in FIG10. The side of the reinforcing seat 1534 away from the second connecting plate 1532 has four bosses arranged circumferentially along the reinforcing seat 1534, and a groove is formed between two adjacent bosses to cooperate with the main cable or the first U-bolt 1533.

[0144] The central support 15 disclosed in this application also includes side columns 154, which are located at least one end of the central crossbeam 151 along its length. One end of the side column 154 is connected to the central crossbeam 151 via a side cable 155, and the other end of the side column 154 is anchored to the ground foundation. Optionally, side columns 154 are provided at both ends of the central crossbeam 151 along its length.

[0145] The installation of the side posts 154 can enhance the overall strength of the central support 15 and improve its wind resistance.

[0146] As shown in Figures 9 and 11, the side post 154 includes a side post beam 1541 and at least two parallel supporting columns 1542. The direction in which the supporting columns 1542 are arranged side by side is consistent with the length extension direction of the middle beam 151. The side post beam 1541 is used to connect the at least two supporting columns 1542. The length direction of the side post beam 1541 is consistent with the arrangement direction of the at least two supporting columns 1542. The side post beam 1541 is connected to the side cable 155.

[0147] The side column beam 1541 can be made of H-beams, and a reinforcing plate is provided along the length of the side column beam 1541.

[0148] In this embodiment, the anchorage area between the side column 154 and the ground foundation is increased, thereby enhancing the strength and stability of the side column 154 anchored to the ground foundation.

[0149] The edge column 154 adopts a combination of concrete pipe piles and steel structure, which reduces the amount of steel used in the steel structure while ensuring the stability of the edge column 154.

[0150] In addition, the combination of concrete pipe piles and steel structures, with the concrete pipe piles anchored to the ground foundation and the concrete pipe piles having stronger corrosion resistance than the steel structures, makes the photovoltaic support system disclosed in this application suitable for water-rich environments such as fish ponds.

[0151] The photovoltaic support system disclosed in this application also includes a reinforcing beam 16, which is used to enhance the strength of the photovoltaic support system.

[0152] For example, as shown in Figure 12, the reinforcing beam 16 includes a reinforcing crossbeam 161 and a reinforcing column 162. The reinforcing crossbeam 161 is arranged along the length direction perpendicular to the main cable, and the reinforcing column 162 is arranged on the reinforcing crossbeam 161. The reinforcing column 162 corresponds to the position of the main cable. Optionally, the length of the reinforcing column 162 corresponding to the position of the upper main cable is greater than the length of the reinforcing column 162 corresponding to the position of the lower main cable.

[0153] Optionally, the reinforcing beam 161 is perpendicular to the reinforcing column 162, the first end of the reinforcing column 162 in the length extension direction is connected to the reinforcing beam 161, and the second end of the reinforcing column 162 in the length extension direction is connected to the main cable.

[0154] Optionally, the reinforcing column 162 and the reinforcing beam 161 are connected by bolts. As shown in Figure 13, the reinforcing beam 161 is a U-shaped steel, which includes an open end and a closed end. The closed end of the reinforcing column 162 and the reinforcing beam 161 are connected by bolts, and a reinforcing plate is installed inside the U-shaped steel through the open end.

[0155] The reinforcing column 162 is connected to the main cable via the connector 163, as shown in Figure 13. The connecting plate includes a third connecting plate 1631 and a third U-bolt 1632. The third connecting plate 1631 is connected to the reinforcing column 162. The third connecting plate 1631 has a hole for the third U-bolt 1632 to pass through. The third U-bolt 1632 is locked to the third connecting plate 1631 by a nut. The third U-bolt 1632 is used to fix the main cable to the third connecting plate 1631.

[0156] Optionally, the third connecting plate 1631 is provided with the aforementioned reinforcing seat 1534.

[0157] The reinforcing column 162 is a U-shaped steel with an open end and a closed end. The closed end of the U-shaped steel is connected to the reinforcing beam 161. A reinforcing member 1633 is provided between the third connecting plate 1631 and the open end of the U-shaped steel. The reinforcing member 1633 is used to enhance the connection strength between the third connecting plate 1631 and the reinforcing column 162.

[0158] Optionally, a reinforcing member 1633 is provided on both side plates of the reinforcing column 162 of the U-shaped steel. The reinforcing member 1633 is a plate-shaped structure and is welded to the reinforcing column 162 and the third connecting plate 1631.

[0159] After the reinforcing beam 16 is connected to the main cable, the reinforcing beam 16 is suspended on the main cable, and the weight of the reinforcing beam 16 acts on the main cable, enhancing the stability of the photovoltaic support system.

[0160] In related technologies, the cable structure of each span can only rely on itself to resist wind force; after adding the reinforcing beam 16, the cable structure of each span can resist wind and unload force together with the adjacent row; at the same time, the windward unit changes from a single row to multiple rows, the length-to-width ratio of the photovoltaic support system decreases, and the stiffness of the windward unit is enhanced.

[0161] When applicable to scenarios such as fish ponds where ground anchors cannot be added in the middle, in addition to ensuring the wind resistance of the photovoltaic support system, it is also necessary to ensure high clearance and not affect the aquaculture and other functions below. Therefore, in addition to the middle support, it is reinforced by strengthening beam 16.

[0162] The reinforcing beam 16 is located between two adjacent middle supports 15, or it can be located between the end supports and the middle supports 15.

[0163] In this solution, the central support 15, the end support 11 and the reinforcing beam 16 can be assembled by bolt connection, realizing the on-site assembly of the flexible photovoltaic support with central support 15, end support 11 and reinforcing beam 16, and facilitating the transportation of the flexible photovoltaic support.

[0164] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A post head for securing a main cable (1), characterized in that, It includes a pin (2), a pin hole (3) adapted to the pin (2) and a main cable adjustment hole (4), wherein the pin hole (3) and the main cable adjustment hole (4) are opened on the column (5) of the end bracket; The pin (2) passes through the pin hole (3), and both ends of the pin (2) are exposed in the pin hole (3) to form an extension section (21). A locking structure (6) is provided on the extension section (21) to form a pin node that integrates the pin (2) and the column head. The pin (2) is provided with a recess (22), and a main cable fixing hole (23) adapted to the main cable (1) is opened at the center of the recess (22). The main cable (1) passes through the main cable adjustment hole (4) and the main cable fixing hole (23) in sequence and is then fixed by the anchoring structure (7). The anchoring structure (7) abuts against the recess (22). The pitch angle of the main cable (1) can be adjusted in the main cable adjustment hole (4).

2. The stud of claim 1, wherein The locking structure (6) includes a pin (61) and a socket (62) adapted to the pin (61). The pin (61) passes through the socket (62), so that the pin (2) is blocked by the pin (61) when it is under force and will not slip out of the pin hole (3).

3. The stud of claim 1, wherein, The locking structure (6) includes a retaining ring and an annular groove adapted to the retaining ring. After the retaining ring is embedded in the annular groove, it has a protrusion relative to the surface of the pin (2), so that the pin (2) is blocked by the protrusion when it is under force and will not slip out of the pin hole (3).

4. The stud of claim 1, wherein, The anchoring structure (7) includes a wedge anchor (71) and a compression anchor (72). The wedge anchor (71) abuts against the recess (22), and its contact surface is located within the cross section of the recess (22). The compression anchor (72) is located at the end of the main cable (1).

5. The stud of claim 1, wherein, The main cable adjustment hole (4) is opened through the column (5), and the main cable adjustment hole (4) has space along the length direction of the column (5) for the main cable (1) to adjust the pitch angle.

6. The stud of claim 1, wherein, It also includes a reinforcing plate (8), which has a plate hole corresponding to the position of the pin hole (3). The pin (2) passes through the pin hole (3) and the plate hole in sequence and is then fixed by the locking structure (6).

7. The stud of claim 6, wherein, The reinforcing plate (8) is a U-shaped cover plate, and the edge of the side plate of the U-shaped cover plate is welded to the column (5).

8. An end mount, characterized by Includes a column head (10) and a tie rod assembly (9) as described in any one of claims 1-7, one end of the tie rod assembly (9) being connected to an extension (21) of the pin (2) of the column head (10), and the other end of the tie rod assembly (9) being fixed to the ground foundation.

9. The end fitting of claim 8, wherein The connection point between the inclined cable assembly (9) and the extension section (21) of the pin (2) is located between the locking structure (6) of the column head (10) and the reinforcing plate (8) of the column head (10).

10. An end mount characterized by, Including the column head (10) and the cable tie assembly (9) as described in any one of claims 1-7, The column (5) of the column head (10) includes a concrete pipe pile (51) and an end steel column (52). The lower end of the concrete pipe pile (51) is anchored to the ground foundation, and the upper end of the concrete pipe pile (51) is provided with the end steel column (52). The end steel column (52) has a pin hole (3) and a main cable adjustment hole (4).

11. The end fitting of claim 10, wherein The main cable (1) with the higher height among two adjacent main cables (1) is the upper main cable, and the main cable (1) with the lower height among two adjacent main cables (1) is the lower main cable. An end beam (53) is provided between the two columns (5) corresponding to the positions of the upper and lower main cables. The two ends of the end beam (53) are respectively connected to the end steel columns (52) of the two columns (5) to enhance the stability of the end support.

12. The end mount of claim 8, wherein, The cable-stayed assembly (9) includes a cable (91) and an extended anchor rod (92). One end of the cable (91) is connected to the extension section (21) of the pin (2), and the other end of the cable (91) is anchored to the ground foundation through the extended anchor rod (92).

13. A photovoltaic racking system, characterized by, Includes an end bracket (11) and a middle bracket (15) as described in any one of claims 8-12, wherein the main cable (1) is fixed by the end bracket (11) and the middle bracket (15) and is used to place the photovoltaic module.

14. The photovoltaic mounting system of claim 13, wherein, The central support (15) includes: A central crossbeam (151) is provided along the length direction perpendicular to the main cable (1), and the central crossbeam (151) includes a fastener (153) for fixing the main cable (1); At least two central columns (152) are arranged side by side along the length of the central beam (151) to support the central beam (151). One end of the central column (152) is connected to the central beam (151), and the other end of the central column (152) is anchored to the ground foundation.

15. The photovoltaic mounting system of claim 14, wherein, The fastener (153) includes a raised platform (1531), a second connecting plate (1532), and a first U-bolt (1533); One end of the elevation platform (1531) is fixedly connected to the central crossbeam (151), and the other end of the elevation platform (1531) is connected to the second connecting plate (1532). The second connecting plate (1532) has mounting holes that mate with the first U-bolt (1533). The first U-bolt (1533) is locked onto the second connecting plate (1532) by a nut. The first U-bolt (1533) is used to fix the main cable to the second connecting plate (1532).

16. The photovoltaic mounting system of claim 15, wherein, The fastener (153) also includes a reinforcing seat (1534), which is fixedly disposed on the opposite side of the side where the second connecting plate (1532) is connected to the raising platform (1531). The reinforcing seat (1534) protrudes from the plane where the second connecting plate (1532) is located, and the reinforcing seat (1534) has a through hole that corresponds to and communicates with the mounting hole. The reinforcing seat (1534) has a limiting groove for the main cable (1) to be inserted.

17. The photovoltaic mounting system of claim 15, wherein, The central support (15) also includes a side column (154) located at at least one end of the central beam (151) along its length. One end of the side column (154) is connected to the central beam (151) via a side cable (155), and the other end of the side column (154) is anchored to the ground foundation.

18. The photovoltaic mounting system of claim 17, wherein, The side post (154) includes a side post beam (1541) and at least two parallel columns (1542). The columns (1542) are arranged side by side in the same direction as the length extension direction of the central beam (151). The side post beam (1541) is used to connect at least two of the columns (1542). The side post beam (1541) is connected to the side cable (155).

19. The photovoltaic mounting system of any of claims 13-18, wherein, It also includes reinforcing beams (16); The reinforcing beam (16) includes a reinforcing crossbeam (161) and a reinforcing column (162). The reinforcing crossbeam (161) is arranged along the length direction perpendicular to the main cable. The reinforcing column (162) is arranged on the reinforcing crossbeam (161). The position of the reinforcing column (162) corresponds to that of the main cable. The first end of the length extension direction of the reinforcing column (162) is connected to the reinforcing crossbeam (161), and the second end of the length extension direction of the reinforcing column (162) is connected to the main cable (1).

20. The photovoltaic mounting system of claim 19, wherein, The reinforcing post (162) is connected to the main cable (1) via a connector (163). The connector (163) includes a third connecting plate (1631) and a third U-bolt (1632). The third connecting plate (1631) is connected to the reinforcing column (162). The third connecting plate (1631) has a hole for the third U-bolt (1632) to pass through. The third U-bolt (1632) is locked to the third connecting plate (1631) by a nut. The third U-bolt (1632) is used to fix the main cable (1) to the third connecting plate (1631). A reinforcing member (1633) is provided between the third connecting plate (1631) and the reinforcing column (162) to enhance the connection strength between the third connecting plate (1631) and the reinforcing column (162).

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