A main beam support structure for photovoltaic single-axis tracking brackets

By designing a support structure and adjustment mechanism, the problems of large main beam load and poor specification adaptability were solved, achieving stable support and flexible installation.

CN224438909UActive Publication Date: 2026-06-30ZHEJIANG MINGAN CHAOJU INTELLIGENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG MINGAN CHAOJU INTELLIGENT TECH CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The main beam of the photovoltaic single-axis tracking bracket bears a large gravity load and cannot be used for the installation of photovoltaic modules of different specifications.

Method used

A main beam support structure including columns, connecting bearings, support structures, and locking structures was designed. The sliding resistance is reduced and the load of the main beam is distributed by the support adjustment structure and support rollers. The length of the support structure can be adjusted by threaded sleeves and fixing bolts to accommodate photovoltaic modules of different specifications.

Benefits of technology

It effectively reduces the gravity load on the main beam, enhances the stability of the supporting structure, and can adapt to the installation of photovoltaic modules of different specifications, ensuring smooth rotation of the main beam.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a main beam support structure for a photovoltaic single-axis tracking bracket, including a column and a connecting bearing fixedly connected to the top side wall of the column. The main beam of the photovoltaic single-axis tracking bracket is fixedly connected to the side wall of the connecting bearing. This application utilizes a support rod to effectively reduce the gravitational load on the main beam of the photovoltaic single-axis tracking bracket, thereby enhancing the load-bearing capacity of the entire main beam support structure and making the support structure very stable. The support arc rod effectively distributes the gravitational load of the main beam of the photovoltaic single-axis tracking bracket without hindering its rotation. The length of the support structure can be easily adjusted according to the length of the installed photovoltaic panel by rotating the threaded sleeve, making the main beam support structure suitable for the installation of photovoltaic panels of different specifications.
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Description

Technical Field

[0001] This utility model relates to the field of photovoltaic single-axis tracking bracket technology, and in particular to a main beam support structure applied to photovoltaic single-axis tracking bracket. Background Technology

[0002] A single-axis photovoltaic (PV) tracking bracket is a PV mounting system that automatically adjusts the angle of PV modules to follow the sun's movement. It typically rotates on only one axis, a horizontal axis, parallel to the ground, hence the name "single-axis." This bracket allows the solar panels to rotate along one axis (usually east-west) throughout the day to always face the sun, maximizing sunlight capture. The main beam support structure of the single-axis PV tracking bracket is the primary load-bearing component connecting the PV modules.

[0003] When a single-axis photovoltaic (PV) tracking bracket supports the load of PV modules, the main beam bears the entire weight. The crossarms and triangular supports, which provide auxiliary support, are also fixed to the main beam. The loads borne by the crossarms and triangular supports are also transferred to the main beam, resulting in a large overall load on the main beam. Furthermore, the crossarm length of typical single-axis PV tracking brackets is usually fixed and not adjustable, making them unsuitable for installing PV modules of different specifications. Therefore, how to effectively reduce the weight load on the main beam of a single-axis PV tracking bracket and how to better accommodate the installation of PV panels of different specifications are important issues that need to be addressed in the design of the main beam support structure for single-axis PV tracking brackets. Utility Model Content

[0004] To address the issues of the large gravity load borne by the main beam and its inability to be well-suited for the installation of photovoltaic modules of different specifications, this utility model provides a main beam support structure for photovoltaic single-axis tracking brackets.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a main beam support structure for a photovoltaic single-axis tracking bracket, including a column, and further including: a connecting bearing fixedly connected to the top side wall of the column, and the main beam of the photovoltaic single-axis tracking bracket fixedly connected to the side wall of the connecting bearing;

[0007] Support structure one, which is installed on the main beam of the photovoltaic single-axis tracking bracket;

[0008] A support adjustment structure is provided at both ends of a support structure one, and the support adjustment structure drives the support structure one to extend and retract.

[0009] Support structure two, wherein the support structure two is disposed between the columns;

[0010] A locking structure is provided at the bottom of the support structure.

[0011] Preferably, the second support structure includes a third support rod, a second sliding groove, and a second support roller. The third support rod is fixedly connected to the side wall between two adjacent columns. The side wall of the third support rod is provided with an arc-shaped second sliding groove, and the second support roller is rotatably connected to the upper and lower side walls of the second sliding groove.

[0012] In this technical solution, three support rods support the support arc rods, and the support rollers roll in the sliding groove, reducing the resistance when the support arc rods slide, making the support arc rods slide more smoothly.

[0013] Preferably, the first support structure includes a first support rod, a support block, a support arc rod, a rolling groove, a sliding rod, and a second support rod. The first support rod is fixedly connected at equal intervals to the top side wall of the main beam of the photovoltaic single-axis tracking bracket. The two ends of the first support rod are slidably connected to sliding rods. Both the first support rod and the sliding rod are hollow square rods. The end of the sliding rod is fixedly connected to a support block. The bottom side wall of the first support rod is fixedly connected to a support arc rod. A rolling groove is formed on the side wall of the support arc rod. The support arc rod is slidably connected in the second sliding groove. The rolling groove is slidably connected to a support roller. The second support rod is fixedly connected between the support arc rod and the main beam of the photovoltaic single-axis tracking bracket.

[0014] In this technical solution, the weight of the photovoltaic panel is transferred to support rod one and support block. Support rod one transfers the gravity load to the main beam of the photovoltaic single-axis tracking bracket and support arc rod respectively. Support block transfers the gravity load to support arc rod through support adjustment structure. Support arc rod then transfers the gravity load to support rod three. By sharing the gravity load on the main beam of the photovoltaic single-axis tracking bracket with support rod three, the gravity load on the main beam of the photovoltaic single-axis tracking bracket is reduced.

[0015] Preferably, the rotation center of the supporting arc rod coincides with the rotation center of the main beam of the photovoltaic single-axis tracking bracket.

[0016] In this technical solution, the supporting arc rod and the main beam of the photovoltaic single-axis tracking bracket both rotate around the same rotation center.

[0017] Preferably, a second sliding groove is provided on the bottom side wall of the sliding rod, the bottom inner side wall of the sliding rod is frosted, and two circular through grooves are provided on the bottom side wall of the support rod.

[0018] Preferably, the support adjustment structure includes a first fixed block, a first rotating plate, a second fixed block, a second rotating plate, a threaded sleeve, a first threaded rod, and a rotating connecting block. The first fixed block is fixedly connected to the side wall of the support arc rod. The first rotating plate is rotatably connected between the first fixed blocks. The first threaded rod is fixedly connected to the end of the first rotating plate. A threaded sleeve is threaded onto the first threaded rod. The end of the threaded sleeve is fixedly connected to the rotating connecting block. The rotating connecting block is rotatably connected to the side wall of the second rotating plate. The second fixed block is fixedly connected to the side wall of the support block. The second rotating plate is rotatably connected between the second fixed blocks.

[0019] In this technical solution, the threaded sleeve is rotated, and the threaded sleeve rotates and moves on the threaded rod. The movement of the threaded sleeve drives the rotating plate to move, the rotating plate to move the fixed block to move, the fixed block to move the support block to move, and the support block to move the sliding rod to slide outward, thereby adjusting the length of the support structure.

[0020] Preferably, a fixing ring block is fixedly connected to the side wall of the threaded sleeve, and threaded grooves are evenly spaced on the side wall of the fixing ring block.

[0021] Preferably, a fixing block three is fixedly connected to the bottom side wall of the rotating plate two, and a fixing bolt is threadedly connected to the side wall of the fixing block three.

[0022] In this technical solution, rotating the fixing bolt connects the threaded connection of the fixing bolt into the threaded groove, thereby fixing and restricting the rotation of the threaded sleeve.

[0023] Preferably, the fixing bolt and the threaded groove cooperate with each other.

[0024] Preferably, the locking structure includes a fixing plate, a telescopic rod, a second threaded rod, a hexagonal nut, and a locking plate. The telescopic rod is fixedly connected to the bottom side wall of the first support rod. The end of the telescopic rod is fixed to the fixing plate. The second threaded rod is fixedly connected to the middle side wall of the fixing plate. A hexagonal nut is threaded onto the second threaded rod. The other end of the second threaded rod passes through a circular slot and is fixedly connected to the locking plate. The locking plate is slidably connected inside the sliding rod. The side wall of the locking plate near the circular slot is frosted.

[0025] In this technical solution, tightening the hexagonal nut causes the threaded rod to move outward, extending the telescopic rod and causing the locking plate to move closer to the side wall at the bottom of the sliding rod until the locking plate firmly presses against the side wall of the sliding rod. The frosted side wall increases frictional resistance and effectively fixes and restricts the sliding rod.

[0026] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0027] The positive and progressive effects of this utility model are as follows:

[0028] 1. The weight of the photovoltaic panel in this application is transferred to support rod one and support block. Support rod one transfers the gravity load to the main beam of the photovoltaic single-axis tracking bracket and support arc rod respectively. Support block transfers the gravity load to support arc rod through support adjustment structure. Support arc rod then transfers the gravity load to support rod three. By sharing the gravity load on the main beam of the photovoltaic single-axis tracking bracket with support rod three, it is easier to reduce the gravity load on the main beam of the photovoltaic single-axis tracking bracket, thereby enhancing the load-bearing capacity of the entire main beam support structure and making the main beam support structure very stable.

[0029] 2. When the main beam of the photovoltaic single-axis tracking bracket of this application rotates within the connecting bearing, it will drive the support arc rod to rotate. The support arc rod slides within the second sliding groove, and the support roller rolls within the first sliding groove, reducing the resistance when the support arc rod slides, making the support arc rod slide more smoothly. This facilitates better distribution of the gravity load of the main beam of the photovoltaic single-axis tracking bracket without hindering the rotation of the main beam.

[0030] 3. By rotating the threaded sleeve, the threaded sleeve rotates and moves on the threaded rod one. The movement of the threaded sleeve drives the rotating plate two to move, the rotating plate two drives the fixed block two to move, the fixed block two drives the support block two to move, and the support block two drives the sliding rod to slide outward, adjusting the length of the support structure one. This allows for better adjustment of the length of the support structure one according to the length of the installed photovoltaic panel, making the main beam support structure suitable for the installation of photovoltaic panels of different specifications. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0032] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.

[0033] Figure 3 This is a three-dimensional structural diagram of the locking structure of this utility model.

[0034] Figure 4 This is a three-dimensional structural diagram of the sliding rod of this utility model.

[0035] Figure 5 The whole of this utility model Figure 2 A magnified schematic diagram of the structure at point A.

[0036] Figure 6 The whole of this utility model Figure 2 A magnified schematic diagram of the structure at point B.

[0037] Explanation of reference numerals in the attached figures

[0038] 1. Column; 2. Main beam of photovoltaic single-axis tracking bracket; 3. Connecting bearing; 4. Support structure one; 401. Support rod one; 402. Support block; 403. Support arc rod; 404. Rolling groove; 405. Sliding rod; 406. Support rod two; 411. Sliding groove one; 5. Support adjustment structure; 501. Fixed block one; 502. Rotating plate one; 503. Fixed block two; 504. Rotating plate two; 505. Thread 506. Sleeve; 507. Threaded rod one; 511. Rotating connecting block; 512. Fixed ring block; 513. Threaded groove; 6. Support structure two; 601. Support rod three; 602. Sliding groove two; 603. Support roller; 7. Fixed block three; 8. Fixed bolt; 9. Locking structure; 901. Fixed plate; 902. Telescopic rod; 903. Threaded rod two; 904. Hexagonal nut; 905. Locking plate; 10. Circular through groove. Detailed Implementation

[0039] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0040] like Figure 1-6 As shown, a main beam support structure for a photovoltaic single-axis tracking bracket includes a column 1, and further includes: a connecting bearing 3 fixedly connected to the top side wall of the column 1, and a main beam 2 of the photovoltaic single-axis tracking bracket fixedly connected to the side wall of the connecting bearing 3.

[0041] Support structure 4 is installed on the main beam 2 of the photovoltaic single-axis tracking bracket;

[0042] The support adjustment structure 5 is disposed at both ends of the support structure 4, and the support adjustment structure 5 drives the support structure 4 to extend and retract.

[0043] Support structure 2 6 is disposed between columns 1;

[0044] Locking structure 9 is provided at the bottom of support structure 4.

[0045] The second support structure 6 includes a third support rod 601, a second sliding groove 602, and a support roller 603. The third support rod 601 is fixedly connected to the side wall between two adjacent columns 1. An arc-shaped sliding groove 602 is provided on the side wall of the third support rod 601. The support roller 603 is rotatably connected to the upper and lower side walls of the second sliding groove 602.

[0046] Support rod 3 601 supports support arc rod 403, and support roller 603 rolls in sliding groove 1 411 to reduce the resistance when support arc rod 403 slides, making support arc rod 403 slide more smoothly.

[0047] The support structure 4 includes a first support rod 401, a support block 402, a support arc rod 403, a rolling groove 404, a sliding rod 405, and a second support rod 406. The first support rod 401 is fixedly connected at equal intervals to the top side wall of the main beam 2 of the photovoltaic single-axis tracking bracket. The two ends of the first support rod 401 are slidably connected to the sliding rod 405. Both the first support rod 401 and the sliding rod 405 are hollow square rods. The end of the sliding rod 405 is fixedly connected to the support block 402. The bottom side wall of the first support rod 401 is fixedly connected to the support arc rod 403. The side wall of the support arc rod 403 is provided with a rolling groove 404. The support arc rod 403 is slidably connected in the second sliding groove 602. The rolling groove 404 is slidably connected to the support roller 603. The second support rod 406 is fixedly connected between the support arc rod 403 and the main beam 2 of the photovoltaic single-axis tracking bracket.

[0048] The weight of the photovoltaic panel is transferred to support rod 401 and support block 402. Support rod 401 transfers the gravity load to the main beam 2 of the photovoltaic single-axis tracking bracket and support arc rod 403 respectively. Support block 402 transfers the gravity load to support arc rod 403 through support adjustment structure 5. Support arc rod 403 then transfers the gravity load to support rod 601. With the help of support rod 601, the gravity load borne by the main beam 2 of the photovoltaic single-axis tracking bracket is distributed, which effectively reduces the gravity load borne by the main beam 2 of the photovoltaic single-axis tracking bracket.

[0049] The rotation center of the supporting arc rod 403 coincides with the rotation center of the main beam 2 of the photovoltaic single-axis tracking bracket.

[0050] This causes the supporting arc rod 403 and the main beam 2 of the photovoltaic single-axis tracking bracket to rotate around the same rotation center.

[0051] The sliding rod 405 has a sliding groove 602 on its bottom side wall, and the bottom inner side wall of the sliding rod 405 is frosted. The support rod 401 has two circular through grooves 10 on its bottom side wall.

[0052] The support adjustment structure 5 includes a first fixed block 501, a first rotating plate 502, a second fixed block 503, a second rotating plate 504, a threaded sleeve 505, a first threaded rod 506, and a rotating connecting block 507. The first fixed block 501 is fixedly connected to the side wall of the support arc rod 403. The first fixed block 501 is rotatably connected to the first rotating plate 502. The first threaded rod 506 is fixedly connected to the end of the first rotating plate 502. The threaded sleeve 505 is threadedly connected to the first threaded rod 506. The rotating connecting block 507 is fixedly connected to the end of the threaded sleeve 505. The rotating connecting block 507 is rotatably connected to the side wall of the second rotating plate 504. The second fixed block 503 is fixedly connected to the side wall of the support block 402. The second rotating plate 504 is rotatably connected between the second fixed blocks 503.

[0053] Rotate the threaded sleeve 505. The threaded sleeve 505 rotates and moves on the threaded rod 506. The movement of the threaded sleeve 505 drives the rotating plate 504 to move. The rotating plate 504 drives the fixed block 503 to move. The fixed block 503 drives the support block 402 to move. The support block 402 drives the sliding rod 405 to slide outward, adjusting the length of the support structure 4.

[0054] A fixing ring block 511 is fixedly connected to the side wall of the threaded sleeve 505, and threaded grooves 512 are equally spaced on the side wall of the fixing ring block 511.

[0055] A fixing block 7 is fixedly connected to the bottom side wall of the rotating plate 2 504, and a fixing bolt 8 is threadedly connected to the side wall of the fixing block 3 7.

[0056] Rotate the fixing bolt 8 to connect the threaded connection of the fixing bolt 8 into the threaded groove 512, thereby fixing and restricting the rotation of the threaded sleeve 505.

[0057] The fixing bolt 8 and the threaded groove 512 cooperate with each other.

[0058] The locking structure 9 includes a fixing plate 901, a telescopic rod 902, a threaded rod 903, a hexagonal nut 904, and a locking plate 905. The telescopic rod 902 is fixedly connected to the bottom side wall of the support rod 401. The end of the telescopic rod 902 is fixed to the fixing plate 901. The threaded rod 903 is fixedly connected to the middle side wall of the fixing plate 901. The hexagonal nut 904 is threaded onto the threaded rod 903. The other end of the threaded rod 903 passes through the circular through groove 10 and is fixedly connected to the locking plate 905. The locking plate 905 is slidably connected inside the sliding rod 405. The side wall of the locking plate 905 near the circular through groove 10 is frosted.

[0059] Tighten the hexagonal nut 904, the threaded rod moves outward, the telescopic rod 902 extends, causing the locking plate 905 to move closer to the side wall at the bottom of the sliding rod 405 until the locking plate 905 is tightly pressed against the side wall of the sliding rod 405. The frosted side wall can increase the frictional resistance and better fix and restrict the sliding rod 405.

[0060] In use, the photovoltaic panel can be installed on support rod 401 and support block 402. The weight of the photovoltaic panel is transferred to support rod 401 and support block 402. Support rod 401 transfers the gravity load to the main beam 2 of the photovoltaic single-axis tracking bracket and support arc rod 403 respectively. Support block 402 transfers the gravity load to support arc rod 403 through support adjustment structure 5. Support arc rod 403 then transfers the gravity load to support rod 601. By using support rod 601 to distribute the gravity load on the main beam 2 of the photovoltaic single-axis tracking bracket, the gravity load on the main beam 2 of the photovoltaic single-axis tracking bracket is reduced, thereby enhancing the load-bearing capacity of the entire main beam support structure and making the main beam support structure very stable.

[0061] Rotating the hexagonal nut 904 causes it to move on the threaded rod 903, loosening the locking plate 905 from the side wall of the base sliding rod 405. Rotating the threaded sleeve 505 causes it to rotate and move on the threaded rod 506. The movement of the threaded sleeve 505 moves the rotating plate 504, which in turn moves the fixing block 503. The fixing block 503 then moves the support block 402, which in turn moves the sliding rod 405 outward. Adjusting the length of the support structure 4 allows for better adjustment based on the length of the installed photovoltaic panel, making the main beam support structure suitable for installing photovoltaic panels of different specifications.

[0062] After adjusting support structure 4, tighten the hexagonal nut 904. The threaded rod moves outward, and the telescopic rod 902 extends, causing the locking plate 905 to move closer to the side wall at the bottom of the sliding rod 405 until the locking plate 905 firmly abuts against the side wall of the sliding rod 405. The frosted side wall increases frictional resistance, making it easier to fix and restrict the sliding rod 405 and prevent movement. Then, rotate the fixing bolt 8 to connect the threaded connection of the fixing bolt 8 into the threaded groove 512. The rotation of the threaded sleeve 505 is fixed and restricted by the fixing bolt 8. When the main beam 2 of the photovoltaic single-axis tracking bracket rotates within the connecting bearing 3, it drives the support rod 401 to rotate. The support rod 401 drives the installed photovoltaic panel and the support arc rod 403 to rotate. The support arc rod 403 slides within the sliding groove 602, and the support roller 603 rolls within the sliding groove 411, reducing the resistance when the support arc rod 403 slides, making the sliding of the support arc rod 403 smoother. This facilitates better distribution of the gravity load of the main beam 2 of the photovoltaic single-axis tracking bracket without hindering the rotation of the main beam 2.

[0063] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A main beam support structure for a photovoltaic single-axis tracking bracket, comprising a column (1), characterized in that, Also includes: A connecting bearing (3) is fixedly connected to the top side wall of the column (1), and the main beam (2) of the photovoltaic flat single-axis tracking bracket is fixedly connected to the side wall of the connecting bearing (3). Support structure one (4) is set on the main beam (2) of the photovoltaic single-axis tracking bracket; A support adjustment structure (5) is provided at both ends of the support structure (4), and the support adjustment structure (5) drives the support structure (4) to perform telescopic adjustment. Support structure two (6) is provided between the columns (1); Locking structure (9) is provided at the bottom of support structure (4).

2. The main beam support structure applied to a photovoltaic single-axis tracking bracket as described in claim 1, characterized in that: The second support structure (6) includes a third support rod (601), a second sliding groove (602), and a support roller (603). The third support rod (601) is fixedly connected to the side wall between two adjacent columns (1). An arc-shaped sliding groove (602) is provided on the side wall of the third support rod (601). The support roller (603) is rotatably connected to the side walls on the upper and lower sides of the second sliding groove (602).

3. The main beam support structure applied to a photovoltaic single-axis tracking bracket as described in claim 1, characterized in that: The first support structure (4) includes a first support rod (401), a support block (402), a support arc rod (403), a rolling groove (404), a sliding rod (405), and a second support rod (406). The first support rod (401) is fixedly connected at equal intervals to the top side wall of the main beam (2) of the photovoltaic single-axis tracking bracket. The two ends of the first support rod (401) are slidably connected to sliding rods (405). Both the first support rod (401) and the sliding rod (405) are hollow square rods. The sliding rod (406) 5) is fixedly connected to a support block (402). A support arc rod (403) is fixedly connected to the bottom side wall of the support rod (401). A rolling groove (404) is opened on the side wall of the support arc rod (403). The support arc rod (403) is slidably connected in the sliding groove (602). The rolling groove (404) is slidably connected to the support roller (603). A support rod (406) is fixedly connected between the support arc rod (403) and the main beam (2) of the photovoltaic flat single-axis tracking bracket.

4. The main beam support structure applied to a photovoltaic single-axis tracking bracket as described in claim 3, characterized in that: The rotation center of the supporting arc rod (403) coincides with the rotation center of the main beam (2) of the photovoltaic flat single-axis tracking bracket.

5. The main beam support structure applied to a photovoltaic single-axis tracking bracket as described in claim 3, characterized in that: The sliding rod (405) has a second sliding groove (602) on its bottom side wall, the bottom inner side wall of the sliding rod (405) is frosted, and the support rod (401) has two circular through grooves (10) on its bottom side wall.

6. The main beam support structure applied to a photovoltaic single-axis tracking bracket as described in claim 1, characterized in that: The support adjustment structure (5) includes a first fixed block (501), a first rotating plate (502), a second fixed block (503), a second rotating plate (504), a threaded sleeve (505), a first threaded rod (506), and a rotating connecting block (507). The first fixed block (501) is fixedly connected to the side wall of the support arc rod (403). The first fixed block (501) is rotatably connected to the first rotating plate (502). The end of the first rotating plate (502) is fixedly connected to the first threaded rod (506). The threaded sleeve (505) is threadedly connected to the first threaded rod (506). The end of the threaded sleeve (505) is fixedly connected to the rotating connecting block (507). The rotating connecting block (507) is rotatably connected to the side wall of the second rotating plate (504). The second fixed block (503) is fixedly connected to the side wall of the support block (402). The second rotating plate (504) is rotatably connected between the second fixed blocks (503).

7. The main beam support structure applied to a photovoltaic single-axis tracking bracket as described in claim 6, characterized in that: A fixing ring block (511) is fixedly connected to the side wall of the threaded sleeve (505), and threaded grooves (512) are provided at equal intervals on the side wall of the fixing ring block (511).

8. The main beam support structure applied to a photovoltaic single-axis tracking bracket as described in claim 6, characterized in that: A fixing block three (7) is fixedly connected to the bottom side wall of the rotating plate two (504), and a fixing bolt (8) is threadedly connected to the side wall of the fixing block three (7).

9. The main beam support structure applied to a photovoltaic single-axis tracking bracket as described in claim 8, characterized in that: The fixing bolt (8) and the threaded groove (512) cooperate with each other.

10. The main beam support structure applied to a photovoltaic single-axis tracking bracket as described in claim 1, characterized in that: The locking structure (9) includes a fixing plate (901), a telescopic rod (902), a threaded rod two (903), a hexagonal nut (904), and a locking plate (905). The telescopic rod (902) is fixedly connected to the bottom side wall of the support rod one (401). The end of the telescopic rod (902) is fixed to the fixing plate (901). The threaded rod two (903) is fixedly connected to the middle side wall of the fixing plate (901). The threaded rod two (903) is threaded with a hexagonal nut (904). The other end of the threaded rod two (903) passes through the circular through groove (10) and is fixedly connected to the locking plate (905). The locking plate (905) is slidably connected in the sliding rod (405). The side wall of the locking plate (905) near the circular through groove (10) is frosted.