High-durability photovoltaic support for desert

Abstract

The invention discloses a high-durability photovoltaic support for desert, and the support comprises a threaded pile foundation disposed at the sand bottom. The concrete pile foundation is poured on the top of the threaded pile foundation in a cast-in-place mode, the stand column is fixedly installed on the top of the concrete pile foundation, the connecting hoop is fixedly installed on the outer circle of the stand column, and the two sets of installation hoops are fixedly installed on the top of the connecting hoop. The two sets of supporting columns are fixedly installed on the outer ring of the stand column through the connecting hoops and the installing hoops, the oblique beams are fixedly installed at the two ends of the installing hoops at different angles, the main beam is installed on the two sets of oblique beams in a butt joint mode, and the main guide rail is installed on the main beam in a butt joint mode and used for bearing a photovoltaic panel. The connecting hoops are connected and fixed through a connecting mechanism. The arrangement of the sand discharge piece and the protection piece can block the adhesion of sand grains, reduce the adverse effects such as corrosion of the photovoltaic support assembly caused by the adhesion of the sand grains, acceleration of the abrasion of the support and the like, and avoid the collapse and fracture of the support caused by the abrasion.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic brackets, and in particular relates to a highly durable photovoltaic bracket for use in deserts. Background Art

[0002] Solar photovoltaic mounting systems are specialized brackets designed for placing, mounting, and securing solar panels in photovoltaic power generation systems. Common materials include aluminum alloy, carbon steel, and stainless steel. Solar support system products are made of carbon steel and stainless steel. The carbon steel is hot-dip galvanized, ensuring 30 years of rust-free outdoor use. Solar photovoltaic mounting systems are characterized by being weld-free, drill-free, 100% adjustable, and 100% reusable.

[0003] The invention patent with domestic application number CN202411974760.2 discloses a desert photovoltaic bracket, including a base, a support assembly installed on the base, a photovoltaic assembly installed on the support assembly, and a protective assembly installed on the base; the protective assembly includes a fixed plate installed on the base, the fixed plate is movably connected to a connecting boss, the connecting boss is connected to a connecting plate, the lower surface of the photovoltaic assembly is connected to a protective main board, the connecting plate is rotatably connected to a protective sub-board, and the protective main board is movably connected to the protective sub-board; the present invention sets a support assembly and a protective assembly, and when the photovoltaic assembly is pitched and adjusted, as one end of the photovoltaic assembly descends and the other end rises, the protective sub-board on one side is pressed inward, and the protective sub-board on the other side is expanded outward under the action of gravity. The direction of the protective main board and the protective sub-board is set according to the local wind direction, and the internal device is protected by the protective main board and the protective sub-board facing the wind, preventing wind and sand from directly blowing the adjustment structure, thereby increasing the service life of the device. The aforementioned invention protects the internal components by directing the main and secondary protective panels against the wind, preventing sand from directly impacting the structure. Desert environments are characterized by strong winds, sandstorms, sand accumulation, and large temperature fluctuations. These factors affect the forces acting on the support, with wind being the primary dynamic load. Desert regions experience high wind speeds and the potential for sudden sandstorms, which can result in horizontal forces, particularly lateral and longitudinal wind loads. These winds, coupled with the action of moving sand dunes, can create lateral pressure on the support foundation. Different wind directions drive the sand to different directions. The internal structure of the bracket cannot be fully protected by the protective plate alone. There are many connecting structures on the bracket. There will be a lot of sand remaining in the gaps and grooves between the connecting structures. The unbalanced accumulation of more sand will cause different loads at different positions of the bracket. Over time, it will cause uneven force on the bracket, causing collapse or twisting and tilting, which requires replacement and maintenance. In addition, the desert sand carries salt and alkaline particles. In the desert environment with a large temperature difference between day and night, it is very easy to accelerate the corrosion of the bracket. A large amount of sand directly impacting or adhering to the connection parts of the bracket will accelerate the wear of the bracket, and the wear at the connection position will affect the locking effect, which will also cause the bracket to break and collapse. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a highly durable photovoltaic bracket for use in the desert, comprising a threaded pile foundation installed on the sand bottom, and also comprising a concrete pile foundation cast on site on the top of the threaded pile foundation, a column fixedly installed on the top of the concrete pile foundation, a connecting hoop fixedly installed on an outer circle of the column, two groups of mounting hoops fixedly installed on the top of the connecting hoop, two groups of support columns fixedly installed on the outer circle of the column through the connecting hoop and the mounting hoop, inclined beams fixedly installed at different angles at both ends of the mounting hoop, a main beam docked with the two groups of the inclined beams, and a main rail docked with the main beam for carrying photovoltaic panels, the connecting hoops are connected and fixed by a connecting mechanism, and the support columns are fixedly installed with sand-proof plates at the connection positions with the mounting hoop and the connecting hoop, and protective parts are positioned and installed at both ends of the inclined beam.

[0005] As a further preferred technical solution of the present invention; the connecting clamp includes four groups of assemblies, and a connecting short frame and a connecting long frame are welded and installed at both ends of the assembly. The assemblies are fixedly installed through the connecting short frame and the connecting long frame. A group of docking holes is opened on the connecting short frame, and two groups of docking holes are opened on the connecting long frame. The support column is fixedly installed between the connecting short frame and the connecting long frame.

[0006] The support column is fixedly installed by connecting the clamp to ensure the installation stability between the support column and the column, and the connecting clamp is used to fix the connecting mechanism to connect the threaded pile foundation buried deep in the sand, so that the entire photovoltaic panel load is shared and the lateral force of the wind or the moving sand dunes caused by the wind is jointly borne. The synergistic effect of the entire threaded pile foundation increases the bracket's ability to resist lateral bending and torsion.

[0007] As a further preferred technical solution of the present invention; the connecting mechanism includes multiple groups of short purlins, multiple groups of long purlins and multiple groups of positioning purlins, the short purlins and the long purlins respectively connect and install the connecting clamps in different directions, the short purlins, the long purlins and the positioning purlins are fixed to the connecting short frames and the connecting long frames by locking bolts, and the positioning purlins are fixedly installed on the connecting short frames and the connecting long frames used to connect the assembly.

[0008] By connecting multiple groups of columns through short purlins and long purlins, the photovoltaic bracket forms a photovoltaic panel array, and its bottom is deeply buried in sand by threaded pile foundations.

[0009] As a further preferred technical solution of the present invention; the mounting clamp consists of two groups of half clamp parts, and the two ends of the half clamp parts are respectively welded and installed with a mounting long frame and a mounting short frame, and three groups of positioning holes are respectively opened on the two ends and the middle position of the support column, and the support column is respectively docked and installed with the two groups of the mounting clamps and the connecting clamps, and the support column is fixedly installed between the mounting long frame and the mounting short frame, and is fixedly installed by passing the locking bolts through the positioning holes, and two groups of bonding plates are welded and installed on the sand-proof plate, and two groups of mounting holes corresponding to the support columns are opened on the bonding plate, and the sand-proof plate and the support column are fixedly installed by two groups of hot-dip galvanized bolts passing through the mounting holes and the positioning holes, and a closed groove is provided in the sand-proof plate, and clamping grooves are opened on both sides of the closed groove at the bonding position of the mounting clamp, a sand-guiding surface is provided on the outer wall of the sand-proof plate, and a welding plate is welded and installed inside the support column between the positioning holes.

[0010] The top and bottom of the positioning hole on the support column used for connection and installation are blocked by welded plates to prevent sand from entering from the end of the support column, and one end is fixed by the hexagonal bolt end of the locking bolt. When the hexagonal bolt and the positioning hole are locked, there is no gap larger than the sand, which blocks the sand. The nut end of the locking bolt on the positioning hole is sealed by the sand-proof plate to reduce the amount of sand remaining in the nut connection.

[0011] As a further preferred technical solution of the present invention; the inclined beam is fixedly installed at both ends of the mounting clamp at different angles, locking holes are provided at both ends of the inclined beam, two sets of limiting parts are welded and installed on one side of the inclined beam for limiting, and a limiting plate is welded and installed on the inner wall of one end of the inclined beam at a 90° vertical angle to the limiting part, and both ends of the inclined beam are fixed to the mounting long frame and the main beam respectively through the locking bolts, and protective parts are installed inside the two ends of the inclined beam, and the protective parts are fixed by the locking bolts, the limiting parts or the limiting plates respectively.

[0012] The specific inclination angle of the inclined beam needs to be calculated and adjusted according to the local desert wind monitoring data. Two sets of protective parts block the sand particles that want to attach to the connection positions at both ends of the inclined beam, and other sand particles are discharged from the bottom of the protective parts under gravity conditions.

[0013] As a further preferred technical solution of the present invention, the short purlins, the long purlins and the connection positions on the positioning purlins are all positioned and installed through protective pieces.

[0014] The protective pieces on the short purlins and the long purlins are in a symmetrical state. First, place the protective pieces in the limiting part. After the locking bolts at both ends are fixed and installed, move the protective pieces to both ends to protect the locking bolt positions.

[0015] As a further preferred technical solution of the present invention, three groups of fixing holes are provided on the top and side surfaces of the main beam at the position of the main guide rail. The main guide rail and the main beam are fixedly installed by high-strength bolts passing through the fixing holes. A sand removal piece is installed at one end of the bottom of the main beam, and a sand removal slope is welded on the bottom of the sand removal piece.

[0016] The sand removal parts are limited by high-strength bolts. In the desert, sand is blown up by the wind. The sand in the air is discharged from the gap at the bottom of the main beam through the barrier of the protective parts, while the sand blown into the main beam at one end of the bottom is discharged by the sand removal slope. The setting of the sand removal parts and protective parts can block the attachment of sand, reducing the adverse effects of sand attachment on the photovoltaic bracket assembly such as corrosion or load imbalance.

[0017] As a further preferred technical solution of the present invention; a concrete pouring pile is cast and installed on the top of the threaded pile foundation, a pouring trough is opened on the top of the concrete pouring pile, the concrete pile foundation is cast inside the pouring trough through a template, the bottom of the column is fixedly installed on the top of the concrete pile foundation through a mounting plate, and a connecting piece cast integrally with the concrete pile foundation is fixedly installed on the bottom of the mounting plate.

[0018] The concrete pile foundation and connecting parts are cast in one piece. The concrete pile foundation bears the tension, and the connecting parts bear the pressure. The strengths complement each other, which increases the bearing effect of the bottom of the photovoltaic bracket, increases the service life of the photovoltaic bracket, and ensures the durability of the photovoltaic bracket.

[0019] As a further preferred technical solution of the present invention, a ground nail is welded and installed at the bottom of the threaded pile foundation, and a threaded tooth is welded and installed around the outer circle of the threaded pile foundation, and multiple groups of grooves are provided on the threaded tooth.

[0020] The grooves increase the contact area with the sand and soil, thereby improving the side friction resistance, thereby ensuring that the photovoltaic bracket can stably support the photovoltaic panels.

[0021] Beneficial effects

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The sand and dust caused by wind not only exerts force on the surface of the bracket, but also tends to remain at the connection points between the support column and the mounting clamp and the connecting clamp, and also remains on the surface of the locking bolt or in the gaps at the locking position. In the case of uneven wind, the weight of the sand remaining at the locking bolt position at different support column connections on large-area photovoltaic brackets varies, resulting in localized gravity loads from the sand and dust. The accumulation of sand on one side causes eccentric stress on the bracket, causing the photovoltaic bracket to twist or tilt. The locking bolt nut end on the positioning hole is sealed with a sand-proof plate to reduce the amount of sand remaining at the nut connection, thus avoiding the localized gravity load caused by sand and dust. This causes different loads on different columns, resulting in the entire bracket tilting and collapsing due to localized loads under the influence of wind.

[0024] 2. In the desert, sand is blown up by the wind. Two sets of protective parts block the sand that wants to attach to the connection positions at both ends of the inclined beam, and other sand is discharged from the bottom of the protective parts under gravity. Similarly, the sand in the air is blocked by the sand-discharging parts and discharged from the gap at the bottom of the main beam, while the sand blown into the main beam at one end of the main beam is discharged by the sand-discharging slope. The setting of the sand-discharging parts and protective parts can block the attachment of sand, reduce the adverse effects of sand attachment on the photovoltaic bracket assembly, accelerate the wear of the bracket, and avoid the collapse and breakage of the bracket due to wear.

[0025] 3. Desert environments are characterized by strong winds, sandstorms, sand accumulation, and large temperature fluctuations. These factors affect the loads on the support structure, with wind being the primary dynamic load. Desert regions experience high wind speeds and the possibility of sudden sandstorms, which can generate horizontal forces, particularly lateral and longitudinal wind loads. Under the influence of wind, shifting sand dunes can create lateral compression on the support structure. Connecting clamps secure the support columns to the uprights, ensuring stability between the columns and the uprights. These clamps secure the connection mechanism, connecting the threaded piles buried deep in the sand. This allows the entire photovoltaic array to share the load and jointly absorb the lateral forces of wind or the shifting sand dunes it causes. The synergistic effect of the threaded piles increases the support's resistance to lateral bending and torsion. The concrete piles and connectors are cast in one piece, with the concrete piles bearing tension and the connectors bearing compression. This complementary strength enhances the load-bearing capacity of the photovoltaic mount's base, extending the lifespan and ensuring the durability of the mount. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 Schematic diagram of the cross-sectional structure of the concrete pile foundation of the present invention;

[0028] Figure 3This is a structural diagram of the connection hoop of the present invention;

[0029] Figure 4 This is a structural diagram of the present invention at the location where the clamp is installed;

[0030] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 6 It is a schematic diagram of the cross-sectional structure of the main rail connection position of the present invention.

[0032] In the figure: 1. Threaded pile foundation; 11. Threaded thread; 12. Groove; 13. Ground nail; 14. Concrete pile; 141. Casting trough; 15. Concrete pile foundation; 2. Column; 21. Mounting plate; 22. Connector; 3. Mounting hoop; 31. Mounting long frame; 32. Mounting short frame; 33. Hot-dip galvanized bolt; 34. Half hoop; 4. Connecting hoop; 41. Connecting short frame; 42. Connecting long frame; 43. Docking hole; 44. Assembly; 5. Support column; 51. Positioning hole; 52. Welding plate; 53, sand-proof plate; 531, closed groove; 532, bonding plate; 533, mounting hole; 534, sand-guiding surface; 535, snap-in groove; 6, inclined beam; 61, limit part; 62, locking hole; 63, protective part; 64, limit plate; 65, locking bolt; 7, main beam; 71, main rail; 72, fixing hole; 73, sand-discharging part; 731, sand-discharging inclined surface; 74, high-strength bolt; 8, connecting mechanism; 81, short purlin; 82, long purlin; 83, positioning purlin. DETAILED DESCRIPTION

[0033] This specific embodiment is a highly durable photovoltaic support for use in deserts.

[0034] The aforementioned invention protects the internal components by directing the main and secondary protective panels against the wind, preventing sand from directly impacting the structure. Desert environments are characterized by strong winds, sandstorms, sand accumulation, and large temperature fluctuations. These factors affect the forces acting on the support, with wind being the primary dynamic load. Desert regions experience high wind speeds and the potential for sudden sandstorms, which can result in horizontal forces, particularly lateral and longitudinal wind loads. These winds, coupled with the action of moving sand dunes, can create lateral pressure on the support foundation. Different wind directions drive the sand to different directions. The internal structure of the bracket cannot be fully protected by the protective plate alone. There are many connecting structures on the bracket. There will be a lot of sand remaining in the gaps and grooves between the connecting structures. The unbalanced accumulation of more sand will cause different loads at different positions of the bracket. Over time, it will cause uneven force on the bracket, causing collapse or twisting and tilting, which requires replacement and maintenance. In addition, the desert sand carries salt and alkaline particles. In the desert environment with a large temperature difference between day and night, it is very easy to accelerate the corrosion of the bracket. A large amount of sand directly impacting or adhering to the connection parts of the bracket will accelerate the wear of the bracket, and the wear at the connection position will affect the locking effect, which will also cause the bracket to break and collapse.

[0035] Its structural diagram is as follows Figure 1-Figure 2 As shown, a highly durable photovoltaic support for desert applications includes a threaded pile foundation 1 installed on a sandy bottom, a concrete pile foundation 15 cast on-site on top of the threaded pile foundation 1, and a column 2 fixedly mounted on top of the concrete pile foundation 15. The support and all connecting metal parts are made of hot-dip galvanized steel, which must withstand extreme high temperatures (up to 50°C during the day) to prevent structural deformation due to thermal expansion. A concrete pile 14 is cast and installed on top of the threaded pile foundation 1. A casting trough 141 is defined at the top of the concrete pile 14. The concrete pile foundation 15 is cast within the casting trough 141 using a formwork. The bottom of the column 2 is fixedly mounted on top of the concrete pile foundation 15 via a mounting plate 21. A connector 22, integrally cast with the concrete pile foundation 15, is fixedly mounted at the bottom of the mounting plate 21. The concrete pile foundation 15 and connector 22 are cast integrally, with the concrete pile foundation 15 bearing tension and the connector 22 bearing compression. Their complementary strengths enhance the load-bearing capacity of the photovoltaic support's base, extend its service life, and ensure its durability. The bottom of the threaded pile foundation 1 is welded with a ground nail 13, and the outer circle of the threaded pile foundation 1 is welded with a screw thread 11, which is provided with multiple groups of grooves 12. The grooves 12 increase the contact area between the pile foundation and the sand, thereby improving the side friction resistance and ensuring the stable load-bearing of the photovoltaic panel by the photovoltaic support.

[0036] Its structural diagram is as follows Figure 3As shown. It also includes a connecting clamp 4 fixedly installed on the outer circle of the column 2. The connecting clamp 4 includes four groups of assemblies 44, and a connecting short frame 41 and a connecting long frame 42 are welded and installed at both ends of the assembly 44. The assemblies 44 are fixedly installed through the connecting short frame 41 and the connecting long frame 42. The connecting short frame 41 is provided with a group of docking holes 43, and the connecting long frame 42 is provided with two groups of docking holes 43. The support column 5 is fixedly installed between the connecting short frame 41 and the connecting long frame 42. The characteristics of the desert environment include strong winds, sandstorms, sand accumulation, large temperature changes, etc. These factors will affect the stress conditions of the bracket, among which wind force is the main dynamic load. The wind speed in the desert area is high, and there may be sudden sandstorms, which will cause horizontal forces, especially lateral and longitudinal wind loads. Under the action of wind force, the moving sand dunes produce lateral squeezing on the bracket foundation. The support column 5 is fixedly installed by connecting the clamp 4 to ensure the installation stability between the support column 5 and the column 2, and the connecting clamp 4 is used to fix the connecting mechanism 8 to connect the threaded pile foundation 1 buried deep in the sand, so that the entire photovoltaic panel load is shared and the lateral force of the wind or the moving sand dunes caused by the wind is jointly borne. The synergistic effect of the entire threaded pile foundation 1 increases the bracket's ability to resist lateral bending and torsion.

[0037] Its structural diagram is as follows Figure 4-Figure 6As shown. It also includes two sets of mounting clamps 3 fixedly mounted on the top of the connecting clamps 4, two sets of support columns 5 fixedly mounted on the outer ring of the uprights 2 via the connecting clamps 4 and the mounting clamps 3, inclined beams 6 fixedly mounted at different angles on both ends of the mounting clamps 3, a main beam 7 docked with the two sets of inclined beams 6, and a main rail 71 docked with the main beam 7 for supporting photovoltaic panels. The connecting clamps 4 are connected and fixed by a connecting mechanism 8. The connecting mechanism 8 includes multiple sets of short purlins 81, multiple sets of long purlins 82, and multiple sets of positioning purlins 83. The short purlins 81 and long purlins 82 respectively connect and install the connecting clamps 4 in different directions. The short purlins 81, long purlins 82, and positioning purlins 83 are fixed to the connecting short frames 41 and long frames 42 via locking bolts 65. The positioning purlins 83 are fixed to the connecting short frames 41 and long frames 42 used to connect the assembly 44. By connecting multiple groups of columns 2 with short purlins 81 and long purlins 82, the photovoltaic rack forms a photovoltaic panel array. Its base is deeply buried in the sand by threaded pile foundations 1, which increases the overall stability of the photovoltaic rack when facing strong winds from different directions. Similarly, after a sandstorm, it prevents the racks from being directly broken by the wind's impact when connected only by high-position main beams 7. This would cause the broken photovoltaic racks to be buried in the sand at different locations, making them difficult to recycle. Sand-proof plates 53 are fixedly installed at the connection points between the support columns 5 and the mounting clamps 3 and the connecting clamps 4. The mounting hoop 3 is composed of two groups of half hoop parts 34. The two ends of the half hoop parts 34 are respectively welded with a mounting long frame 31 and a mounting short frame 32. Three groups of positioning holes 51 are respectively opened at the two ends and the middle position of the support column 5. The support column 5 is respectively docked with the two groups of mounting hoop 3 and the connecting hoop 4. The support column 5 is fixedly installed between the mounting long frame 31 and the mounting short frame 32 and is fixedly installed by passing the locking bolt 65 through the positioning hole 51. Two groups of bonding plates 5 are welded on the sand-proof plate 53. 32, and two groups of mounting holes 533 corresponding to the support columns 5 are opened on the bonding plate 532. The sand-proof plate 53 and the support columns 5 are fixed by two groups of hot-dip galvanized bolts 33 passing through the mounting holes 533 and the positioning holes 51. A sealed groove 531 is provided in the sand-proof plate 53. Clamping grooves 535 are opened on both sides of the sealed groove 531 at the position where the mounting hoop 3 is bonded. A sand-guiding surface 534 is provided on the outer wall of the sand-proof plate 53. A welding plate 52 is welded and installed inside the support column 5 between the positioning holes 51. The dust caused by wind not only exerts force on the surface of the bracket, but also tends to remain at the connection position between the support column 5 and the installation clamp 3 and the connecting clamp 4, and remain on the surface of the locking bolt 65 or in the gap of the locking position. When the wind force is uneven on a large-area photovoltaic bracket, the weight of the sand remaining at the position of the locking bolt 65 at different support column 5 connections is different, which will cause local gravity load of the sand and dust. The accumulation of sand on one side causes the bracket to be eccentrically stressed, thereby causing the photovoltaic bracket to twist or tilt.The top and bottom of the positioning hole 51 on the support column 5, used for connection and installation, are shielded by welded plates 52 to prevent sand from entering through the end of the support column 5. One end of the support column 5 is secured by the hexagonal end of a locking bolt 65. When the hexagonal bolt is tightened, there is no gap larger than a grain of sand between the positioning hole 51, thus blocking sand. Sand-proof plates 53 seal the nut end of the locking bolt 65 in the positioning hole 51, reducing sand from remaining in the nut connection. This prevents sand from adhering to the thread groove, localized gravity loads caused by sand, and wind carrying sand from increasing local impact forces and causing surface wear at the connection point of the positioning hole 51, which could cause the locking bolt 65 to loosen. This prevents the photovoltaic rack from tilting and collapsing due to localized loads. Reducing sand adhesion also reduces the corrosion of the metal caused by moisture and salt carried in the sand in high-temperature environments. Protective members 63 are installed at both ends of the inclined beam 6. The inclined beam 6 is fixedly installed at different angles at both ends of the mounting hoop 3. Locking holes 62 are provided at both ends of the inclined beam 6. Two sets of limiting parts 61 are welded and installed on one side of the inclined beam 6 for limiting. A limiting plate 64 is welded and installed on the inner wall of one end of the inclined beam 6 at a 90° vertical angle to the limiting part 61. Both ends of the inclined beam 6 are fixed to the mounting long frame 31 and the main beam 7 by locking bolts 65. Protective parts 63 are installed inside the two ends of the inclined beam 6 to limit the position. The protective parts 63 are fixed by locking bolts 65, limiting parts 61 or limiting plates 64 respectively. The specific inclination angle of the inclined beam 6 needs to be calculated and adjusted based on local desert wind monitoring data. Before installing the inclined beam 6, the inclination angle of the inclined beam 6 is first determined. After adjustment, the bottom end of the inclined beam 6 is installed. After installation, a set of protective members 63 is placed from the top end of the limiting portion 61 into the interior of the inclined beam 6. The gap between the limiting portions 61 moves the protective members 63 to the bottom end of the inclined beam 6, and the protective members 63 are restrained by the limiting plates 64. Another set of locking bolts 65 is then installed and placed into the inclined beam 6 in the same manner. The protective members 63 are restrained by the locking bolts 65. These two sets of protective members 63 block sand particles that attempt to attach to the connection points at the ends of the inclined beam 6, while other sand particles are discharged from the bottom of the protective members 63 under gravity. The connection points on the short purlins 81, long purlins 82, and positioning purlins 83 are all positioned and installed using protective members 63. The protective members 63 on the short purlins 81 and the long purlins 82 are in a symmetrical state. First, the protective members 63 are placed in the limiting portion 61. After the locking bolts 65 at both ends are fixed and installed, the protective members 63 are moved to both ends to protect the positions of the locking bolts 65.

[0038] Three groups of fixing holes 72 are provided on the top and side surfaces of the main beam 7 at the position of the main guide rail 71. The main guide rail 71 and the main beam 7 are fixed by high-strength bolts 74 passing through the fixing holes 72. A sand removal piece 73 is installed at one end of the bottom of the main beam 7, and a sand removal slope 731 is welded to the bottom of the sand removal piece 73. One end of the sand removal piece 73 is a through opening. When installing the sand removal piece 73, the inclination direction of the main beam 7 is determined first. The inclination direction of the main beam 7 needs to be determined in conjunction with the wind monitoring data, and the inclined beam 6 at the bottom needs to be coordinated and connected. After the installation of the top end of the main beam 7 is completed, the sand removal piece 73 is placed in the main beam 7 and fixed with high-strength bolts 74. The sand removal piece 73 is limited by the high-strength bolts 74. In the desert, sand is blown up by the wind, and the sand in the air is discharged from the gap at the bottom of the main beam 7 through the obstruction of the protective piece 63, and the sand blown into the inside of the main beam 7 at the bottom end of the main beam 7 is discharged by the sand removal inclined surface 731. The settings of the sand removal piece 73 and the protective piece 63 can both block the attachment of sand particles, thereby reducing the adverse effects of sand attachment on the photovoltaic bracket assembly such as corrosion or load imbalance.

[0039] The photovoltaic panel arrangement positions are marked out and fixed, and multiple groups of threaded pile foundations 1 are transported to the construction site. The threaded pile foundations 1 are directly pressed or hammered into the sand at the fixed points. A casting template is installed on the casting groove 141 on the top of the threaded pile foundation 1, and the interior is cast on site. While casting, the connecting piece 22 is placed in the casting template in the casting groove 141, so that the connecting piece 22 and the concrete pile foundation 15 are cast as one. The installation hoop 3, the connecting hoop 4 and the support column 5 are respectively fixed on each group of columns 2, and the multiple groups of columns 2 are connected by short purlins 81 and long purlins 82, so that the photovoltaic bracket forms a photovoltaic panel array, and its bottom is deeply buried in the sand by the threaded pile foundation 1, which can increase the overall stability of the photovoltaic bracket when facing strong winds from different directions. Before installing the inclined beam 6, first determine the inclination angle of the inclined beam 6 and the main beam 7. After the adjustment is completed, install the bottom end of the inclined beam 6. After installation, place a set of protective members 63 from the top end of the limiting portion 61 into the interior of the inclined beam 6. Move the protective members 63 to the bottom end of the inclined beam 6 by the gap between the limiting portions 61 and limit the protective members 63 by the limiting plates 64. Then install another set of locking bolts 65. In the same way, place the protective members 63 into the inclined beam 6 and limit the protective members 63 by the locking bolts 65. When installing the sand removal member 73, first determine the inclination direction of the main beam 7. The inclination direction of the main beam 7 needs to be determined in conjunction with the wind monitoring data and requires the coordinated connection with the bottom inclined beam 6. After the top end of the main beam 7 is installed, place the sand removal member 73 into the main beam 7 and fix it with the high-strength bolts 74. The high-strength bolts 74 limit the sand removal member 73. Finally, fix the photovoltaic panel to the main rail 71 with the pressing block.

[0040] All technical features in this embodiment can be freely combined according to actual needs.

[0041] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A highly durable photovoltaic support for use in deserts, comprising a threaded pile foundation (1) installed on a sandy bottom, characterized in that: The invention also includes a concrete pile foundation (15) cast on site on the top of the threaded pile foundation (1), a column (2) fixedly installed on the top of the concrete pile foundation (15), a connecting hoop (4) fixedly installed on the outer circle of the column (2), two groups of mounting hoops (3) fixedly installed on the top of the connecting hoop (4), two groups of support columns (5) fixedly installed on the outer circle of the column (2) through the connecting hoop (4) and the mounting hoop (3), an inclined beam (6) fixedly installed at different angles at both ends of the mounting hoop (3), a main beam (7) docked and installed with the two groups of inclined beams (6), and a main rail (71) docked and installed with the main beam (7) for carrying photovoltaic panels, wherein the connecting hoops (4) are connected and fixed by a connecting mechanism (8), and the support columns (5) are fixedly installed with sand-proof plates (53) at the connection positions with the mounting hoop (3) and the connecting hoop (4), and protective members (63) are positioned and installed at both ends of the inclined beam (6).

2. The high-durability photovoltaic bracket for use in deserts according to claim 1, characterized in that: The connecting hoop (4) comprises four groups of assemblies (44), and a connecting short frame (41) and a connecting long frame (42) are respectively welded and installed at both ends of the assemblies (44). The assemblies (44) are fixedly installed through the connecting short frame (41) and the connecting long frame (42). The connecting short frame (41) is provided with a group of docking holes (43), and the connecting long frame (42) is provided with two groups of docking holes (43). The support column (5) is fixedly installed between the connecting short frame (41) and the connecting long frame (42).

3. The high-durability photovoltaic bracket for use in deserts according to claim 2, characterized in that: The connecting mechanism (8) includes multiple groups of short purlins (81), multiple groups of long purlins (82) and multiple groups of positioning purlins (83). The short purlins (81) and the long purlins (82) respectively connect and install the connecting hoop (4) in different directions. The short purlins (81), the long purlins (82) and the positioning purlins (83) are fixedly installed on the connecting short frame (41) and the connecting long frame (42) through locking bolts (65). The positioning purlins (83) are fixedly installed on the connecting short frame (41) and the connecting long frame (42) for connecting the assembly (44).

4. The high-durability photovoltaic bracket for use in deserts according to claim 3, characterized in that: The mounting hoop (3) is composed of two groups of half hoop parts (34), and the two ends of the half hoop parts (34) are respectively welded with a mounting long frame (31) and a mounting short frame (32). Three groups of positioning holes (51) are respectively opened at the two ends and the middle position of the support column (5). The support column (5) is respectively docked with the two groups of the mounting hoop (3) and the connecting hoop (4). The support column (5) is fixedly installed between the mounting long frame (31) and the mounting short frame (32), and is fixedly installed by the locking bolt (65) passing through the positioning hole (51). Two groups of bonding plates (532) are welded and installed on the sand-proof plate (53). ), and two groups of mounting holes (533) corresponding to the support columns (5) are provided on the bonding plate (532), and the sand-proof plate (53) and the support columns (5) are fixedly mounted by two groups of hot-dip galvanized bolts (33) passing through the mounting holes (533) and the positioning holes (51), and a closed groove (531) is provided in the sand-proof plate (53), and clamping grooves (535) are provided on both sides of the closed groove (531) at the positions where the mounting hoop (3) is bonded, and a sand-guiding surface (534) is provided on the outer wall of the sand-proof plate (53), and a welding plate (52) is welded and mounted inside the support columns (5) between the positioning holes (51).

5. The high-durability photovoltaic bracket for use in deserts according to claim 4, characterized in that: The inclined beam (6) is fixedly installed at the two ends of the mounting hoop (3) at different angles. Locking holes (62) are provided at both ends of the inclined beam (6). Two groups of limiting parts (61) for limiting are welded and installed on one side of the inclined beam (6). A limiting plate (64) is welded and installed on the inner wall of one end of the inclined beam (6) at a 90° vertical angle to the limiting part (61). The two ends of the inclined beam (6) are fixedly installed between the mounting long frame (31) and the main beam (7) respectively through the locking bolts (65). Protective parts (63) are installed inside the two ends of the inclined beam (6). The protective parts (63) are fixed by the locking bolts (65), the limiting parts (61) or the limiting plates (64).

6. The high-durability photovoltaic bracket for use in deserts according to claim 3, characterized in that: The connecting positions of the short purlin (81), the long purlin (82) and the positioning purlin (83) are all positioned and installed through protective members (63).

7. The high-durability photovoltaic bracket for use in deserts according to claim 1, characterized in that: Three groups of fixing holes (72) are provided on the top and side surfaces of the main beam (7) at the positions of the main guide rail (71); the main guide rail (71) and the main beam (7) are fixedly installed by high-strength bolts (74) passing through the fixing holes (72); a sand discharge piece (73) is installed at one end of the bottom of the main beam (7); and a sand discharge inclined surface (731) is welded to the bottom of the sand discharge piece (73).

8. The high-durability photovoltaic bracket for use in deserts according to claim 1, characterized in that: A concrete pouring pile (14) is cast and installed on the top of the threaded pile foundation (1), a pouring trough (141) is provided on the top of the concrete pouring pile (14), and the concrete pile foundation (15) is poured inside the pouring trough (141) through a template. The bottom of the column (2) is fixedly installed on the top of the concrete pile foundation (15) through a mounting plate (21), and a connecting piece (22) cast integrally with the concrete pile foundation (15) is fixedly installed on the bottom of the mounting plate (21).

9. The high-durability photovoltaic bracket for use in deserts according to claim 1, characterized in that: A ground nail (13) is welded and installed at the bottom of the threaded pile foundation (1), and a screw thread (11) is welded and installed around the outside of the threaded pile foundation (1), and a plurality of groups of grooves (12) are provided on the screw thread (11).

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