Photovoltaic tracking support with locking mechanism

Abstract

The invention relates to the technical field of photovoltaic tracking supports, in particular to a photovoltaic tracking support with a locking mechanism, which comprises a first torque tube, a second torque tube, a shell and the locking mechanism, the first torque tube and the second torque tube are connected through the torque tube connecting blocks in the length direction to form a continuous structure, and the torque tube connecting blocks are installed on the shell in a combined mode through the upper connecting rod and the lower connecting rod. The locking mechanism comprises a lock head and a lock support, the lock head is rotatably mounted on the lower connecting rod, the first torque tube and the second torque tube are suspended on the shell through the upper connecting rod, and the lock support is arranged at the bottom of the shell; the lock head has a passing state or a locking state when passing through the lock support, and in the passing state, the lock head passes through the lock support in an inclined state; and in the locking state, the lock head is locked in a locking area on the lock support in an inclined state, so that the first torque tube and the second torque tube are prevented from crossing the lock support to continuously rotate.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic tracking bracket technology, and in particular to a photovoltaic tracking bracket with a locking mechanism. Background Technology

[0002] Photovoltaic tracking brackets, as structural devices specifically designed for photovoltaic power generation systems, primarily function to support and fix photovoltaic modules (such as solar panels). They also automatically or manually adjust according to the sun's trajectory to maximize the angle and time at which the photovoltaic modules receive solar radiation, thereby improving power generation efficiency. This type of bracket system not only requires sufficient strength and stability to withstand external forces under various climatic conditions, but also needs good corrosion resistance and durability to ensure long-term stable operation.

[0003] For tracking brackets, one of the major factors causing structural damage is high wind load. Existing tracking brackets have at least one of the following problems when dealing with high winds: 1. Using only a single worm gear reducer set in the middle of a single row as a self-locking point, the torque tube far from the middle position is prone to deformation and damage under strong wind conditions. In addition, the structural strength of the connection between adjacent torque tubes is weak or the gap is large, which can easily cause damage to the connection. 2. Although some manufacturers have set up corresponding wind protection strategies, choosing to stop at a small angle (i.e., when the photovoltaic modules are near the flat position) to reduce wind load or at a large angle (i.e., at the extreme angle of the tracking bracket rotation) to provide more locking point protection, the corresponding time to rotate to a small or large angle is relatively long because it is impossible to accurately judge the time when the strong wind will arrive. During the process of rotating to a small or large angle, the bracket structure may be damaged. 3. Existing technologies employ multi-point electrical drives to rotate the tracking bracket. These drives use the unidirectional self-locking function of multiple synchronously rotating worm gear reducers to lock at any angle. However, due to the use of multiple drives and the need for communication between them to achieve synchronous rotation, the cost is high and it is not suitable for large-scale promotion and use. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, a photovoltaic tracking bracket with a locking mechanism is provided.

[0005] The specific technical solution is as follows: Design a photovoltaic tracking bracket with a locking mechanism, including a first torque tube, a second torque tube, a housing, and a locking mechanism; The first torque tube and the second torque tube are connected in the length direction by torque tube connecting blocks to form a continuous structure. The torque tube connecting blocks are assembled on the housing by upper connecting rods and lower connecting rods. The locking mechanism includes a lock head and a lock support. The lock head is rotatably mounted on the lower connecting rod. The first torque tube and the second torque tube are suspended from the housing through the upper connecting rod. The lock support is located at the bottom of the housing. The lock head has a passing state or a locked state when passing the lock support. In the passing state, the lock head passes the lock support at an angle. In the locked state, the lock head is locked in the locking area on the lock support at an angle, thereby preventing the first torque tube and the second torque tube from passing the lock support and continuing to rotate.

[0006] As a preferred embodiment, the bottom of the lock head is provided with a locking part that cooperates with the locking area; In the locked state, the locking part is in contact with the locking area to prevent the first torque tube and the second torque tube from continuing to rotate; The lock head switches between the passable and locked states by changing its tilt direction.

[0007] As a preferred embodiment, the lock holder has an arc-shaped plate, and the lock holder is integrally formed with the housing or connected separately.

[0008] As a preferred embodiment, the lock holder is separately connected to the housing, the bottom of the housing is provided with an opening for installing the arc-shaped plate, and the locking area is set as the angled area formed between the opening on the housing and the arc-shaped plate.

[0009] As a preferred embodiment, a baffle is provided at the end of the arc-shaped plate, and the locking area is set as the included angle area formed between the baffle and the end of the arc-shaped plate.

[0010] As a preferred embodiment, the lock holder is integrally formed on the side of the housing, and the lock head is mounted on the side of the housing.

[0011] As a preferred embodiment, the housing is provided with a first stop and a second stop. When the first torque tube and the second torque tube rotate clockwise to the maximum angle, the lower connecting rod or the lock head contacts the first stop to achieve a limiting stop. When the first torque tube and the second torque tube rotate counterclockwise to the maximum angle, the lower connecting rod or the lock head contacts the second stop to achieve a limiting stop.

[0012] As a preferred embodiment, one end of the torque tube connecting block has a support portion that extends into the first torque tube and the second torque tube. The support portion is fixedly connected to the first torque tube or the second torque tube by fasteners. The other end of the torque tube connecting block extends to the top and bottom respectively to form a first connecting seat and a second connecting seat.

[0013] As a preferred embodiment, both the first connecting seat and the second connecting seat have through holes parallel to the direction of the first torque tube. The upper connecting rod extends into the first connecting seat, the lower connecting rod extends into the second connecting seat, and the lock head is rotatably disposed between the second connecting seats.

[0014] As a preferred embodiment, the housing is also included as a column, and the housing is fixedly installed on the top of the column via a column adapter.

[0015] The above technical solution has the following advantages or beneficial effects: It can maintain passage when the tracking bracket is running normally. When strong winds occur, the torque tube is driven to rotate in the opposite direction to change the tilt direction of the lock head and enter the locking state, thereby locking the torque tube in a safe position. This protects the entire tracking bracket from strong winds and improves its wind resistance. In particular, locking the tracking bracket within a small angle range makes it safer to park at night.

[0016] The locking mechanism consisting of a lock head and a lock bracket can limit and lock the photovoltaic tracking bracket to a small angle position near 0°. The first and second stops on the housing can limit and lock the photovoltaic tracking bracket to a large angle position near the limit rotation angle. Thus, when strong winds occur, the photovoltaic tracking bracket can be judged based on its current angle and a small or large angle position closer to the rotation path can be selected for quick locking, reducing the risk of structural damage during rotation.

[0017] By distributing the wind load borne by the overall tracking bracket to multiple columns, the wind load is effectively dispersed, making full use of the structural strength of each column and improving the safety and wind resistance of the overall tracking bracket. Attached Figure Description

[0018] Embodiments of the invention will be described more fully with reference to the accompanying drawings. However, the drawings are for illustration and explanation only and do not constitute a limitation on the scope of the invention.

[0019] Figure 1 This is a three-dimensional structural diagram of a photovoltaic tracking bracket with a locking mechanism proposed in this invention.

[0020] Figure 2 This is an exploded view of a photovoltaic tracking bracket with a locking mechanism proposed in this invention.

[0021] Figure 3 This is a front view of a photovoltaic tracking bracket with a locking mechanism proposed in this invention, in the passage state when the lock head rotates counterclockwise.

[0022] Figure 4 This is a front view of a photovoltaic tracking bracket with a locking mechanism proposed in this invention, showing the locking state when the lock head rotates counterclockwise.

[0023] Figure 5This is a front view of a photovoltaic tracking bracket with a locking mechanism proposed in this invention, in the passage state when the lock head rotates clockwise.

[0024] Figure 6 This is a front view of a photovoltaic tracking bracket with a locking mechanism proposed in this invention, showing the locking state when the lock head rotates clockwise.

[0025] Figure 7 This is a three-dimensional structural diagram of a photovoltaic tracking bracket with a locking mechanism proposed in this invention.

[0026] Figure 8 This is a front view of a photovoltaic tracking bracket with a locking mechanism proposed in this invention.

[0027] Figure 9 This is a three-dimensional structural diagram of a photovoltaic tracking bracket with a locking mechanism proposed in this invention.

[0028] Figure 10 This is an exploded view of a photovoltaic tracking bracket with a locking mechanism proposed in this invention.

[0029] Figure 11 This is a front view of a photovoltaic tracking bracket with a locking mechanism proposed in this invention.

[0030] Figure 12 This is a structural diagram of the lock head in a photovoltaic tracking bracket with a locking mechanism proposed in this invention.

[0031] The reference numerals in the above figures indicate: 1. Lock head; 11. Locking part; 2. Lock support; 21. Baffle; 22. Arc plate; 23. Locking area; 41. First torque tube; 42. Second torque tube; 43. Torque tube connecting block; 431. First connecting seat; 432. Second connecting seat; 433. Upper connecting rod; 434. Lower connecting rod; 435. Support part; 5. Column; 6. Housing; 61. Reinforcing rib plate; 62. First stop part; 63. Second stop part; 7. Column adapter. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0035] One of the major factors contributing to structural damage to current tracking brackets is high wind load. Existing photovoltaic tracking brackets suffer from at least one of the following problems when dealing with high winds: 1. Using only a single worm gear reducer set in the middle of a single row as a self-locking point, the torque tube of the single row tracking bracket is relatively long and has a certain degree of deflection. Under strong wind conditions, the torque tube far from the middle position is more susceptible to deformation and damage. In addition, the structural strength of the connection between adjacent torque tubes is weak or the gap is large, which can easily cause damage to the connection. 2. Although some manufacturers have set up corresponding wind protection strategies, they choose to stop at a small angle (i.e., when the photovoltaic module is in a position near the flat position) to reduce wind load or at a large angle (i.e., at the extreme angle of the tracking bracket rotation) to provide more locking point protection. At a small angle, the force-bearing area of ​​the photovoltaic module is small, and at a large angle, the resonance frequency is lower. However, since it is impossible to accurately predict when strong winds will arrive, the corresponding response time to rotate to a small or large angle is relatively long. During the rotation to a small or large angle, the support structure may be damaged. For example, when strong winds strike in the morning or evening, if the support is rotated to a small angle to be placed flat, a large angle needs to be rotated (for example, for a tracking support that tracks the sun within a range of ±60°, it needs to be rotated more than 50 degrees). The response time required by the photovoltaic tracking system is relatively long, and if wind protection is selected during the rotation, the resistance is large, and if wind protection is selected, the risk is large. 3. Existing technologies employ multi-point electrical drives to rotate the tracking bracket, using the one-way self-locking function of multiple synchronously rotating worm gear reducers to lock at any angle (e.g., the utility model patent disclosed in Chinese patent application number 2023213310316). However, due to the use of multiple drives and the need for communication between these drives to achieve synchronous rotation, the cost is high and it is not suitable for large-scale promotion and use.

[0036] In the actual operation of existing photovoltaic tracking brackets, the weather information (including wind force, wind direction, temperature, etc.) is received in real time by the weather station that is equipped with the existing photovoltaic tracking bracket. When the weather station identifies a strong wind hazard, the controller of the photovoltaic tracking bracket controls the drive mechanism of the photovoltaic tracking bracket to drive the torque tube to rotate, so as to avoid the hazard.

[0037] Reference Figures 1-12 A photovoltaic tracking bracket with a locking mechanism includes a first torque tube 41, a second torque tube 42, a housing 6, and a locking mechanism. The first torque tube 41 and the second torque tube 42 are connected in the length direction by torque tube connecting blocks 44 to form a continuous structure. The torque tube connecting blocks 44 are assembled and installed on the housing 6 by upper connecting rods 433 and lower connecting rods 434. The locking mechanism includes a lock head 1 and a lock support 2. The lock head 1 is rotatably mounted on the lower connecting rod 434. The first torque tube 41 and the second torque tube 42 are suspended from the housing 6 through the upper connecting rod 433. The lock support 2 is located at the bottom of the housing 6. When the lock head 1 passes the lock support 2, it has a passing state or a locked state. In the passing state, the lock head 1 passes the lock support 2 at an angle. In the locked state, the lock head 1 is locked in the locking area 23 on the lock support 2 at an angle, thereby preventing the first torque tube 41 and the second torque tube 42 from passing the lock support 2 and continuing to rotate.

[0038] The first torque tube 41 and the second torque tube 42 are fixedly connected together by the torque tube connecting block 44 in conjunction with the upper connecting rod 433 and the lower connecting rod 434. The torque tubes of the single-row tracking bracket are extended in the length direction. Compared with the clamp or diameter reduction connection method commonly used in the prior art, the connection strength is higher. At the same time, it replaces the complex and costly clamps used to hold the torque tubes in the suspended tracking bracket.

[0039] The locking mechanism formed by the lock head 1 and the lock support 2 enables the photovoltaic tracking bracket to be locked and limited when it is near 0 degrees. When strong winds come, the torque tube can be locked and limited to a safe position, thereby protecting the entire tracking bracket from strong winds and improving the overall wind resistance of the tracking bracket.

[0040] In some alternative embodiments, the bottom of the lock head 1 is provided with a locking part 11 that cooperates with the locking area 23; In the locked state, the locking part 11 is engaged with the locking area 23 to prevent the first torque tube 41 and the second torque tube 42 from continuing to rotate; The lock head 1 switches between the passable and locked states by changing its tilt direction.

[0041] More specifically, the locking part 11 is set as the bottom part of the lock head 1, which is similar to a spindle head. The locking area 23 is provided with two parts, one on the left end of the lock support 2 and the other on the right end of the lock support 2.

[0042] When strong winds strike, the reverse rotation changes the tilt direction of lock head 1, entering the locking state and locking the torque tube to a safe position. This provides wind protection for the entire tracking bracket and improves its wind resistance. In particular, locking the tracking bracket within a small angle range offers greater advantages when parking at night.

[0043] Furthermore, the lock holder 2 has an arc-shaped plate 22, and the lock holder 2 is integrally formed with the housing 6 or separately connected.

[0044] like Figure 7 , Figure 8 As shown, as one of the preferred embodiments, the lock holder 2 is separately connected to the housing 6. The bottom of the housing 6 is provided with an opening for installing the arc plate 22. The locking area 23 is set as the angled area formed between the opening on the housing 6 and the end of the arc plate 22. The end of the opening at the bottom of the housing 6 and the end of the arc plate form a corner composed of two surfaces. When the lock head 1 is locked at the locking area 23, the locking part 11 on the lock head 1 fits against the locking area 23. When the lock head 1 passes the end of the opening, its direction will change. Thus, the passage / locking state can be switched by changing the rotation direction of the torque tube. Further details can be found throughout the specification of the present invention and more specifically below.

[0045] like Figures 1-6 As shown, as one of the preferred solutions, a baffle 21 is provided at the end of the arc plate 22, and the locking area 23 is set as the angled area formed between the baffle 21 and the end of the arc plate 22. The side of the baffle 21 near the arc plate 22 forms a corner with the end of the arc plate 22. When the lock head 1 is locked in the locking area 23, the locking part 11 on the lock head 1 fits into the locking area 23. In addition, in the passage state, when the lock head 1 passes the baffle 21, its direction will change. When the lock head 1 rotates from the baffle 21 to the outside of the lock support 2, after passing the baffle 21, the tilting direction of the lock head 1 changes to the opposite tilt, for example, from tilting to the left to tilting to the right. After moving away from the baffle 21, the lock head 1 changes from the tilted state to the vertical state.

[0046] like Figures 9-11 As shown, as one of the preferred solutions, the lock holder 2 is integrally formed on the side of the housing 6, and the lock head 1 is installed on the side of the housing 6. For example, the lock holder 2 is configured as having an arc plate 22 welded to the side of the housing 6 in an inverted "V" shape, and the locking area 23 is set as the corner area at the end of the arc plate 22. Similarly, when the lock head 1 passes the end of the lock holder 2 with the arc plate 22 welded to the side of the housing 6 in an inverted "V" shape, its direction will also change.

[0047] In addition, to enhance the structural strength of the shell 6, an arc-shaped reinforcing rib 61 can be provided in the middle part of the shell 6.

[0048] Taking the normal tracking of the sun's rotation by the tracking bracket during the day as an example, in the early morning, the photovoltaic modules installed on the tracking bracket face the direction of the rising sun in the east, and in the evening, the photovoltaic modules installed on the tracking bracket face the direction of the setting sun in the west. During this process, the tracking bracket rotates counterclockwise from west to east. During the daytime sun tracking process, the torque tube is always in a passing state. The locking head 1 moves from the upper left, passing through the locking area 23 at the left end and the locking area 23 at the right end of the locking bracket 2, to the upper right. During this process, the locking head 1 exhibits different postures. Figures 1-6 For example, the details are as follows: In the morning, the lock head 1 is positioned to the upper left of the lock holder 2 and is vertical under the influence of gravity. As the sun rises, the lock head 1 rotates counterclockwise towards the left-side baffle 21. After the bottom of the lock head 1 contacts the left-side baffle 21, it begins to tilt to the left. After passing the left-side locking area 23, it enters the lock holder 2 and slides over the lock holder 2 in a tilted-to-the-left state. When passing the right-side locking area 23, the locking part 11 does not lock with the right-side locking area 23, and the lock head 1 can smoothly pass over the right-side baffle 21. After disengaging from the right-side baffle 21, the lock head 1 remains vertical under the influence of gravity until the sun sets in the evening. Therefore, it can be seen that the lock head 1 is always in a passable state when it is normally tracking the sun during the day.

[0049] Similarly, during the nighttime return process, when the tracking bracket rotates back to face the photovoltaic modules eastward, lock head 1 remains in a passable state during the rotation. This demonstrates that lock head 1 and lock bracket 2 do not affect the normal operation of the tracking bracket.

[0050] When a strong wind blows, when the lock head 1 is positioned between the left and right locking areas 23 on the lock support 2, or outside the lock support 2 but near the left and right locking areas 23, the rotation direction of the tracking bracket is controlled according to the position of the lock head 1, as follows: When the lock head 1 is between the left and right locking areas 23 on the lock support 2, if the lock head 1 is tilted to the left (i.e., during normal daytime tracking), the torque tube is controlled to rotate clockwise instead of counterclockwise, so that the locking part 11 on the lock head 1 is attached to the left locking area 23, thereby limiting the torque tube and preventing it from rotating further. If the lock head 1 is tilted to the right (i.e., during nighttime return), the torque tube is controlled to rotate counterclockwise instead of clockwise, so that the locking part 11 on the lock head 1 is attached to the right locking area 23, thus limiting the torque tube. When the lock head 1 is outside the lock support 2 but near the left and right locking areas 23, if the lock head 1 is in the upper left position of the lock support 2, adjust the torque tube to enter the left and right locking areas 23 counterclockwise and then rotate it clockwise in the opposite direction so that the locking part 11 abuts against the left locking area 23; similarly, when the lock head 1 is in the upper right position of the lock support 2, adjust the torque tube to enter the left and right locking areas 23 clockwise and then rotate it counterclockwise in the opposite direction so that the locking part 11 abuts against the right locking area 23.

[0051] In addition, at night, the torque tube can be positioned between the left and right locking areas 23 on the locking bracket 2, such as around 0° when the tracking bracket is flat, to reduce the rotation angle required for the torque tube to rotate to the left or right locking area 23, thereby quickly achieving locking protection.

[0052] The locking mechanism described above allows the tracking bracket to remain open during normal operation. When strong winds occur, it rotates in the opposite direction to enter the locking state, thereby locking the torque tube in a safe position and protecting the entire tracking bracket from strong winds, thus improving the overall wind resistance of the tracking bracket.

[0053] In some optional embodiments, the housing 6 is provided with a first stop 62 and a second stop 63. When the first torque tube 41 and the second torque tube 42 rotate clockwise to the maximum angle, the lower connecting rod 434 or the locking head 1 contacts the first stop 62 to achieve a limiting stop. When the first torque tube 41 and the second torque tube 42 rotate counterclockwise to the maximum angle, the lower connecting rod 434 or the locking head 1 contacts the second stop 63 to achieve a limiting stop. Specifically, the specific positions of the first stop 62 and the second stop 63 are based on the actual rotation angle range of the photovoltaic tracking bracket, such as the common ±60° or ±45°. When the actual rotation angle range of the photovoltaic tracking bracket is ±60°, the first stop 62 is set to the ±60° position, and the second stop 63 is set to the ±60° position, which is used to limit and protect the photovoltaic tracking bracket when it is at a large angle.

[0054] In addition, in cases of snowfall at night, the tracking bracket can be parked at its maximum tilt angle to increase the amount of snow falling under the influence of gravity, thereby reducing the load on the overall tracking bracket caused by the snow.

[0055] The locking mechanism consisting of lock head 1 and lock support 2 can limit and lock the photovoltaic tracking bracket to a small angle position near 0°. The first stop part 62 and the second stop part 63 set on the housing 6 can limit and lock the photovoltaic tracking bracket to a large angle position near the limit rotation angle. Thus, when strong winds occur, the photovoltaic tracking bracket can be judged according to its current angle and a small angle position or a large angle position with a shorter rotation path can be selected for quick locking, reducing the risk of structural damage during rotation.

[0056] like Figure 2 , Figure 10 As shown, in some optional embodiments, one end of the torque tube connecting block 43 has a support portion 435 that extends into the first torque tube 41 and the second torque tube 42. The support portion 435 is fixedly connected to the first torque tube 41 or the second torque tube 42 by fasteners. The other end of the torque tube connecting block 43 extends to the top and bottom respectively to form a first connecting seat 431 and a second connecting seat 432.

[0057] As a further optional solution, both the first connecting seat 431 and the second connecting seat 432 have through holes parallel to the direction of the first torque tube 41. The upper connecting rod 433 extends into the first connecting seat 431, and the lower connecting rod 434 extends into the second connecting seat 432. The locking head 1 is rotatably disposed between the second connecting seats 432. More specifically, both the upper connecting rod 433 and the lower connecting rod 434 can be selected as long screws, with one end limited by the screw head and the other end locked by the nut and the limiting pin.

[0058] The torque tube connecting block 43 is preferably formed by forging. The outer contour dimension of the support part 435 is slightly smaller than the inner contour dimension of the first torque tube 41 and the second torque tube 42. The support part 435 extends into the torque tube as an inner lining structure, which improves the structural strength of the connection between adjacent torque tubes. At the same time, the upper connecting rod 433 and the lower connecting rod 434 are used to cooperate with the first connecting seat 431 and the second connecting seat 432 for installation. The fixed installation method in the prior art is improved to a rotating installation, which is more convenient to operate during installation.

[0059] In addition, a photovoltaic tracking bracket with a locking mechanism also includes a column 5. The housing 6 is fixedly installed on the top of the column 5 through a column adapter 7. A single row of photovoltaic tracking brackets includes multiple columns 5. The top of each column 5 is fixedly installed with a housing 6 through a column adapter 7. A lock head 1 and a lock bracket 2 are installed on the housing 6.

[0060] By distributing the wind load borne by the overall tracking bracket to multiple columns, the wind load is effectively dispersed, making full use of the structural strength of each column and improving the safety and wind resistance of the overall tracking bracket.

[0061] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A photovoltaic tracking bracket with a locking mechanism, characterized in that: Includes a first torque tube (41), a second torque tube (42), a housing (6), and a locking mechanism; The first torque tube (41) and the second torque tube (42) are connected in the length direction by torque tube connecting blocks (44) to form a continuous structure. The torque tube connecting blocks (44) are mounted on the housing (6) by upper connecting rod (433) and lower connecting rod (434). The locking mechanism includes a lock head (1) and a lock support (2). The lock head (1) is rotatably mounted on the lower connecting rod (434). The first torque tube (41) and the second torque tube (42) are suspended on the housing (6) through the upper connecting rod (433). The lock support (2) is located at the bottom of the housing (6). The lock head (1) has a passing state or a locked state when passing the lock support (2). In the passing state, the lock head (1) passes the lock support (2) in an inclined state; in the locked state, the lock head (1) is locked in the locking area (23) on the lock support (2) in an inclined state, thereby preventing the first torque tube (41) and the second torque tube (42) from passing the lock support (2) and continuing to rotate.

2. A photovoltaic tracking bracket with a locking mechanism according to claim 1, characterized in that: The bottom of the lock head (1) is provided with a locking part (11) that works in conjunction with the locking area (23); In the locked state, the locking part (11) is in contact with the locking area (23) to prevent the first torque tube (41) and the second torque tube (42) from continuing to rotate; The lock (1) switches between the passable state and the locked state by changing the tilt direction.

3. A photovoltaic tracking bracket with a locking mechanism according to claim 2, characterized in that: The lock holder (2) has an arc-shaped plate (22), and the lock holder (2) is integrally formed with the housing (6) or separately connected.

4. A photovoltaic tracking bracket with a locking mechanism according to claim 3, characterized in that: The locking bracket (2) is separately connected to the housing (6). The bottom of the housing (6) is provided with an opening for installing the arc plate (22). The locking area (23) is set as the angle area formed between the opening on the housing (6) and the arc plate (22).

5. A photovoltaic tracking bracket with a locking mechanism according to claim 3, characterized in that: The end of the arc plate (22) is provided with a baffle (21), and the locking area (23) is set as the angle area formed between the baffle (21) and the end of the arc plate (22).

6. A photovoltaic tracking bracket with a locking mechanism according to claim 3, characterized in that: The lock holder (2) is integrally formed on the side of the housing (6), and the lock head (1) is installed on the side of the housing (6).

7. A photovoltaic tracking bracket with a locking mechanism according to claim 1, characterized in that: The housing (6) is provided with a first stop (62) and a second stop (63). When the first torque tube (41) and the second torque tube (42) rotate clockwise to the maximum angle, the lower connecting rod (434) or the lock head (1) contacts the first stop (62) to achieve a limiting stop. When the first torque tube (41) and the second torque tube (42) rotate counterclockwise to the maximum angle, the lower connecting rod (434) or the lock head (1) contacts the second stop (63) to achieve a limiting stop.

8. A photovoltaic tracking bracket with a locking mechanism according to claim 1, characterized in that: One end of the torque tube connecting block (43) has a support portion (435) that extends into the first torque tube (41) and the second torque tube (42). The support portion (435) is fixedly connected to the first torque tube (41) or the second torque tube (42) by fasteners. The other end of the torque tube connecting block (43) extends to the top and bottom respectively to form a first connecting seat (431) and a second connecting seat (432).

9. A photovoltaic tracking bracket with a locking mechanism according to claim 8, characterized in that: The first connecting seat (431) and the second connecting seat (432) are both provided with through holes in the direction parallel to the first torque tube (41). The upper connecting rod (433) extends into the first connecting seat (431), and the lower connecting rod (434) extends into the second connecting seat (432). The lock head (1) is rotatably disposed between the second connecting seats (432).

10. A photovoltaic tracking bracket with a locking mechanism according to any one of claims 1-9, characterized in that: It also includes a column (5), and the housing (6) is fixedly installed on the top of the column (5) via a column adapter (7).

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