Photovoltaic racking reinforcement device

Abstract

The present application relates to photovoltaic support technical field, specifically to a kind of photovoltaic support reinforcing device, including installation in the side pressure of photovoltaic board both sides and middle pressure, further include: fixed frame, embedded installation in all middle pressure or side pressure of photovoltaic board single side, connect the side pressure or middle pressure of low and high of photovoltaic board;Connecting piece, installation is below high in fixed frame, end can be fixed in the bottom of opposite side pressure or middle pressure by bolt, lift or thrust received by high is transferred to low, solve the problem that existing photovoltaic support reinforcing mode effect is limited, improve the connection strength of photovoltaic board and support and overall wind resistance, photovoltaic board and support in prior art only rely on middle pressure and side pressure connection, before typhoon hoop reinforcement is difficult to deal with strong wind impact, and the device connects side pressure and middle pressure of high and low of same side as a whole by fixed frame, when receiving pressure difference or jacking force, it can help to disperse stress, avoid force concentration in local cause local first fracture, auxiliary balanced load.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic support technology, and more specifically to a photovoltaic support reinforcement device. Background Technology

[0002] A photovoltaic (PV) bracket is a support structure used to hold PV panels. A typical PV bracket mainly consists of crossbeams, longitudinal beams, and support beams. The PV panels are fixed to the bracket using edge pressure and medium pressure. Under most weather conditions throughout the year, the PV panels can be fixed using conventional edge pressure or medium pressure.

[0003] A patent application with application number CN202323174489.8 discloses a photovoltaic bracket reinforcement device and bracket, relating to the field of photovoltaic brackets. The photovoltaic bracket reinforcement device includes a purlin support, a pad, and connectors. The purlin support includes a first connecting plate and a second connecting plate, which are connected to form an L-shaped cross-section. The connectors include a first connector and a second connector. The pad includes a first support plate, a second support plate, and a third support plate. The first support plate, the second support plate, and the third support plate are connected in sequence to form a C-shaped cross-section. The second connector passes through the second connecting plate, the top plate of the inclined beam, and the first support plate in sequence to fix the second connecting plate, the top plate of the inclined beam, and the first support plate. The first connector is used to fix the back plate of the purlin to the first connecting plate.

[0004] The above-mentioned technical solution connects the inclined beam and purlin with an L-shaped purlin bracket, and simultaneously uses a pad to lift the connection between the inclined beam and purlin bracket from below, strengthening the connection between the inclined beam and purlin, thereby enhancing the fixing effect of the photovoltaic panel. In existing technologies, in order to cope with severe weather such as typhoons, additional fixing is added at the edge and center pressure points. For example, clamps are added to the edge pressure points, bolts are added to the center pressure points, and pressure plates are added below the edge and center pressure points. The purpose is to increase the connection between the photovoltaic panel and the photovoltaic support. This reinforcement method increases local fastening through single-point methods. In typhoon weather, the photovoltaic panel is actually subjected to force as a whole. The weakest point of fixation will break the connection first. After local damage occurs, the uneven stress on the photovoltaic panel will be further aggravated, and then the photovoltaic panel will be directly lifted off. Therefore, the fixation between the photovoltaic panel and the support should have a certain degree of stress balance to avoid uneven reinforcement conditions in different places. Summary of the Invention

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a photovoltaic support reinforcement device that effectively solves the problem of uneven stress on photovoltaic panels in existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a photovoltaic support reinforcement device, including edge clamps and center clamps installed on both sides of the photovoltaic panel, and further comprising:

[0008] The mounting bracket is embedded in all the medium or edge voltages on one side of the photovoltaic panel, connecting the low and high edge or medium voltages of the photovoltaic panel;

[0009] The connector is installed below the high position of the fixed frame, and its end can be fixed to the bottom of the diagonal side pressure or middle pressure by bolts, so as to transfer the lift or thrust received at the high position to the low position.

[0010] Furthermore, the connector includes a steel cable and mounting blocks fixed at both ends of the steel cable, with the middle part of the steel cable located in a hole below the fixing frame;

[0011] The steel cable has double-headed clamps symmetrically distributed about the fixing frame, which are used to adjust the distance between the fixing frame and the mounting block.

[0012] Furthermore, the two mounting blocks below the single fixing frame can be fixed to the bottom of the side or center pressure at a diagonal position relative to the fixing frame by bolts, and the steel cable is in a diagonal state to transfer the negative pressure from the high position to the low position.

[0013] Furthermore, the two mounting blocks below a single fixing frame can be clamped to the column below the fixing frame by bolts, and the steel cable is in a vertically straight state, which strengthens the connection between the fixing frame and the column.

[0014] Furthermore, the two mounting blocks below a single fixing frame can be fixed with bolts to the bottom of the side or center pressure on the same side or diagonally opposite to itself. Half of the steel cable is diagonally stretched, and the other half is parallel to the fixing frame, thus balancing the load distribution between the high and low positions of the fixing frame.

[0015] Furthermore, the fixing frame includes a U-shaped component as the main body and baffles located on both sides or one side of the U-shaped component, and a groove for bolts to pass through is provided in the middle of the U-shaped component;

[0016] A U-shaped piece with a single-sided stop bar is installed on the edge pressure plate, while a U-shaped piece with two-sided stop bars is installed on the intermediate pressure plate.

[0017] Furthermore, the steel cable below the fixing frame is divided into two parts, and each part of the steel cable is clamped with a double-headed clamp. By adjusting the two clamping positions of the double-headed clamp, the distance between the fixing frame and the mounting block is adjusted to meet the installation distance.

[0018] Furthermore, the double-headed clamp includes a cylinder and two sliding rods symmetrically slidably inserted inside the cylinder. The ends of the two sliding rods near each other are fixedly connected to a movable disk. Bolts are movably threaded into both the movable disk and the cylinder. A spring is fixedly connected between the movable disk and the cylinder.

[0019] The cylinder has multiple vertical holes for bolts to pass through.

[0020] Furthermore, two clamping plates are fixedly connected to the outward end of the slide rod, and the steel cable clamped between the two clamping plates is secured by bolts and nuts.

[0021] Furthermore, the upper and lower ends of the cylinder are provided with fixing members, which can be used to fix the cylinder to the column of the support.

[0022] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0023] 1. This device effectively solves the problem of limited effectiveness of existing photovoltaic support reinforcement methods, significantly improving the connection strength between photovoltaic panels and supports and the overall wind resistance. In existing technologies, photovoltaic panels and supports are only connected by medium and edge pressure, and the clamp reinforcement before a typhoon is difficult to withstand the impact of strong winds. However, this device connects the edge and medium pressure at high and low positions on the same side into a whole through a fixed frame. When subjected to pressure difference or top force, it can help disperse the force and avoid the force from concentrating in a local area and causing local breakage first. It also helps to balance the load. At the same time, the connector further transfers the wind force received at the high position to the low position. In view of the characteristics of the small point of action of instantaneous wind force and the dispersed action area, which can easily cause local strong damage, the instantaneous force is dispersed by load transfer, which greatly reduces the situation of local damage by instantaneous wind force, effectively preventing photovoltaic panels from being blown away by strong winds and ensuring the safe operation of photovoltaic systems in strong wind weather.

[0024] 2. This device offers flexible and diverse installation options, adapting to various installation conditions and scenarios, significantly enhancing its applicability. The mounting blocks offer multiple installation methods, allowing for flexible selection based on the actual installation location. When there is no concrete or concrete block on the ground for fixing, the mounting block can be fixed to the bottom of a diagonally opposite edge or central pressure point. When the support column is square and can be clamped, the mounting block can be clamped onto the column, or clamped to the opposite side column to create a crisscrossing distribution of the steel cables, further aiding in load distribution. When there are no mounting block installation options on the ground or other buildings, the mounting block can be fixed to the bottom of a diagonally opposite edge or central pressure point to balance the high and low load distribution. When there is a ground or building surface for fixing, the mounting block can be directly fixed to the ground or building. These diverse installation methods eliminate the need for additional counterweights or complex foundation modifications, reducing reinforcement costs and enabling rapid reinforcement work before typhoons.

[0025] 3. The device features a scientifically designed structure that combines rigid connection stability with elastic buffer protection, effectively extending the service life of the photovoltaic system. The double-headed clamp allows for flexible adjustment of the distance between the fixing frame and the mounting block by adjusting the clamping position of the clamping plates on the steel cable, adapting to different installation size requirements. Simultaneously, the double-headed clamp can switch working modes by removing or retaining the bolts. When the bolts are retained, the entire unit remains rigid, ensuring direct force transmission and connection stability. When the bolts are removed, the spring inside the cylinder provides elastic support, absorbing part of the instantaneous wind force and reducing impact damage to bolts and other rigid fasteners, preventing fatigue fracture due to prolonged instantaneous impact. Furthermore, the fixing frame employs a U-shaped component with a stop bar design, increasing the contact area with the photovoltaic panel. This allows for better force transmission when the photovoltaic panel is under stress, further assisting in dispersing wind force and improving the overall reinforcement effect. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the back side of the fixing frame in the vertical state of the present invention;

[0029] Figure 3 This is a front view of the connection between the fixing frame and the edge and middle pressure of the present invention;

[0030] Figure 4 This is a bottom view schematic diagram of the connection between the fixing frame and the side pressure and middle pressure of the present invention;

[0031] Figure 5 This is a schematic diagram of the internal structure of the double-headed clamp of the present invention.

[0032] The labels in the diagram represent: 1. Fixing frame; 101. U-shaped part; 102. Stop bar; 103. Slot; 2. Connecting part; 201. Steel cable; 202. Double-headed clamp; 2021. Cylinder; 2022. Slide rod; 2023. Clamping plate; 2024. Moving plate; 2025. Fixing part; 203. Mounting block; 3. Side pressure; 4. Medium pressure. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] The present invention will be further described below with reference to embodiments.

[0035] Reference Figures 1 to 5 Example: A photovoltaic support reinforcement device includes side pressure 3 and central pressure 4 installed on both sides of the photovoltaic panel, and further includes:

[0036] The mounting bracket 1 is embedded in all the medium-pressure 4 or edge-pressure 3 on one side of the photovoltaic panel, connecting the low-position and high-position edge-pressure 3 or medium-pressure 4 of the photovoltaic panel;

[0037] Connector 2 is installed below the high position of the fixing frame 1. Its end can be fixed to the bottom of the diagonal side pressure 3 or the middle pressure 4 with bolts, transferring the lift or thrust received at the high position to the low position. The two mounting blocks 203 under a single fixing frame 1 can also be fixed to the bottom of the side pressure 3 or the middle pressure 4 at a diagonal position to the fixing frame 1 with bolts. The steel cable 201 is in a diagonal state, transferring the negative pressure received at the high position to the low position. This installation method can be used when there is no cement or other fixable location on the ground, or when there are no cement blocks or other counterweights to provide an installation position for the mounting blocks 203. In this installation position, the mounting block 203 can transfer the force received by the high position of the fixing frame 1 through the steel cable 201 to the bottom of the diagonal side pressure 3 and the middle pressure 4, that is, to the low position column. Conversely, it also transfers the force from the low position to the high position. This is a means of dealing with instantaneous wind force. When the instantaneous wind force is strong, the point of impact is smaller when it passes through the photovoltaic panel, which will cause stronger damage to the local area. By transferring the load, the instantaneous force is dispersed, reducing the local damage caused by instantaneous wind force. The following are different installation methods of the mounting block 203 and different distribution of the steel cable 201. The functions are similar, but they need to be selected according to the installation conditions of the installation site.

[0038] The two mounting blocks 203 below the single fixing frame 1 can also be clamped to the column below the fixing frame 1 by bolts, and the steel cable 201 is in a vertically straight state to strengthen the connection between the fixing frame 1 and the column.

[0039] When the column is square and the two mounting blocks 203 can clamp each other, this installation method can be selected. This installation method uses bolts to fasten the two mounting blocks 203, so that the two mounting blocks 203 are clamped on the column below the fixing frame 1. It can be the column directly below the fixing frame 1 or the column on the opposite side, so that the steel cables 201 below the fixing frame 1 on both sides of the photovoltaic panel are distributed in a cross shape to help distribute the load.

[0040] The two mounting blocks 203 below a single fixing frame 1 can also be bolted to the bottom of the side pressure 3 or the middle pressure 4 on the same side or diagonally opposite to itself. Half of the steel cable 201 is diagonally stretched, and the other half is parallel to the fixing frame 1, balancing the load distribution between the high and low positions of the fixing frame 1. This installation method can also be used when there are no mounting blocks 203 on the ground or other buildings to help distribute the load on the fixing frame 1. In this method, the force is transferred from the high position of the fixing frame 1 to the low side pressure 3 or the middle pressure 4, and indirectly to the low column, thus helping to distribute the load.

[0041] There are many types of photovoltaic (PV) panel support structures. Array-type supports are widely used due to their ease of installation and low cost. These supports mainly consist of columns, crossbeams, longitudinal beams, a central pressure unit (4), and side pressure units (3). The central and side pressure units together hold the PV panels in place. The bottom of the columns is secured to the ground or roof using bolts or expansion bolts, and reinforced with concrete blocks to increase wind resistance. Additional reinforcement of the PV support structure is necessary before typhoons. Since PV panels are mostly installed facing south at an angle, they are often blown away primarily due to the pressure difference created by wind rushing across the top surface of the panels, or by the wind directly acting on the back of the panels, generating an upward force. The connection between the support structure and the ground or roof can be strengthened by welding, adding expansion bolts, or adding counterweights. The connection between the bracket and the photovoltaic panel relies solely on the medium-pressure 4 and the side-pressure 3. At most, clamps are used to replace bolts to connect to the crossbeam before a typhoon. The reinforcement effect of this method is limited. Based on this, a fixing frame 1 can be installed on the side-pressure 3 or medium-pressure 4 on the same side. The bolts and nuts of the clamps are used to fasten the side-pressure 3 or medium-pressure 4 to the fixing frame 1, increasing the connection between the high and low side-pressure 3 or medium-pressure 4. When subjected to pressure difference or lifting force, it can help disperse the force and avoid the force from concentrating in a local area, which would cause local breakage first. It also helps to balance the load. At the same time, the connector 2 is connected to the lower part of the fixing frame 1 at the high position, and the other two ends are fixed to the bottom of the diagonal side-pressure 3 or medium-pressure 4 with bolts to further assist in dispersing wind force. The mounting block 203 has double holes, which allows for multiple installation methods and can be installed according to actual conditions.

[0042] Mounting block 203 can be fixed to the ground or other building surfaces with bolts or expansion screws, increasing the connection between the high position of the mounting bracket 1 and the ground or other building areas, and improving the fixing effect at the high position.

[0043] Specifically, the connector 2 includes a steel cable 201 and mounting blocks 203 fixed at both ends of the steel cable 201. The middle part of the steel cable 201 is located in the hole below the fixing frame 1. Double-headed clamps 202 are symmetrically distributed on the steel cable 201 about the fixing frame 1. The steel cable 201 below the fixing frame 1 is divided into two parts, and both parts of the steel cable 201 are clamped with double-headed clamps 202. By adjusting the two clamping positions of the double-headed clamps 202, the distance between the fixing frame 1 and the mounting block 203 is adjusted to meet the installation distance.

[0044] Specifically, the fixing frame 1 includes a U-shaped part 101 as the main body and a stop bar 102 located on both sides or one side of the U-shaped part 101. A groove 103 for bolts to pass through is provided in the middle of the U-shaped part 101.

[0045] A U-shaped piece 101 with a single-sided baffle 102 is installed on the side pressure 3, and a U-shaped piece 101 with baffles 102 on both sides is installed on the middle pressure 4.

[0046] During installation, first place the clamps of side pressure 3 or medium pressure 4 with the threaded part of the clamp facing upwards. Then place the U-shaped part 101 and use the nut thread to engage with the threaded part of the clamp to fasten the U-shaped part 101 and the side pressure 3 or medium pressure 4 to the crossbeam. The baffle 102 on the side of the U-shaped part 101 increases the contact with the photovoltaic panel, which can better transmit the force when the photovoltaic panel is under stress and help to disperse the wind force on the photovoltaic panel.

[0047] Specifically, the double-headed clamp 202 includes a cylindrical body 2021 and two sliding rods 2022 symmetrically slidably inserted inside the cylindrical body 2021. The ends of the two sliding rods 2022 near each other are fixedly connected to a movable disk 2024. Bolts are threadedly inserted into both the movable disk 2024 and the cylindrical body 2021. A spring is fixedly connected between the movable disk 2024 and the cylindrical body 2021. Multiple holes for bolts to pass through are vertically opened from the middle of the cylindrical body 2021. The holes do not involve the ends of the cylindrical body 2021.

[0048] Two clamping plates 2023 are fixedly connected to the outward end of the slide bar 2022. The steel cable 201 clamped between the two clamping plates 2023 is fastened with bolts and nuts.

[0049] If the bolts in the moving plate 2024 and the cylinder 2021 are not removed, the steel cable 201 and the double-headed clamp 202 are rigid as a whole, and the force is transmitted directly. However, if the bolts in the moving plate 2024 and the cylinder 2021 are removed, the two sets of clamps 2023 are supported by springs, so that the steel cable 201 has a certain elastic support. In the instantaneous wind force, the spring in the cylinder 2021 can absorb part of the force to reduce damage to the bolts and other rigid fasteners.

[0050] The steel cable 201 is located below the fixing frame 1 in the middle. The steel cable 201 can be divided into left and right parts, and the bottom of both parts is connected to the mounting block 203. Double-headed clamps 202 are connected to both parts of the steel cable 201, and the portion of the steel cable 201 between the clamping plates 2023 of the double-headed clamps 202 is slack. The two sliding rods 2022 connecting the two moving discs 2024 slide within the cylinder 2021 and compress the spring can be replaced by a single sliding rod 2022 sliding within the cylinder 2021. One set of clamping plates 2023 is connected to the end of the slide bar 2022, while the other set of clamping plates 2023 needs to be connected to the cylinder 2021. Only one bolt is needed to pass through the cylinder 2021 and the moving plate 2024. Of the two methods, the advantage of using two slide bars 2022 is that it has better mechanical balance and centering ability, while the advantage of using one slide bar 2022 is that the structure is simpler, the friction is smaller, and the response is more sensitive. The connection and distribution of clamping plates 2023 of the double-headed clamp 202 can be determined according to the situation and the requirements.

[0051] The holes on the cylinder 2021 and the holes on the fixed movable plate 2024 are not in a straight line. After the bolts on the movable plate 2024 are removed, the movable plate 2024 can compress the spring between itself and the cylinder 2021. To adjust the preload of the spring, the slide rod 2022 can be stretched beforehand to compress the spring between the movable plate 2024 and the cylinder 2021. Bolts are then passed through the holes in the cylinder 2021 to force the spring to remain compressed. Next, the clamping plate 2023 is clamped onto the steel cable 201 to adjust the distance between the mounting block 203 and the fixing frame 1, ensuring that the steel cable 201 is taut from the fixing frame 1 to the double-headed clamp 202, and then to the mounting block 203. Figure 5 The two sliders in the 2022 design allow for adjustment of the spring preload by varying the preload of the upper and lower springs. The combination of the two spring preloads can produce different damping values.

[0052] By adjusting the position of the clamping plate 2023 holding the steel cable 201, the distance between the fixing frame 1 and the mounting block 203 can be adjusted. That is, the length of the steel cable 201 between the two sets of clamping plates 2023 is longer, and the distance between the fixing frame 1 and the mounting block 203 is shorter. This can be adjusted according to the actual installation position. If the mounting block 203 is to be installed at the bottom of the side pressure 3 or the middle pressure 4, holes need to be drilled at the bottom of the side pressure 3 or the middle pressure 4 first.

[0053] Example 2, refer to Figure 5 Unlike the above embodiments, the upper and lower ends of the cylinder 2021 are provided with fixing members 2025, which can be used to fix the cylinder 2021 to the column of the support.

[0054] The fastener 2025 can be a saddle clamp, a flat steel clamp, or a U-shaped clamp used in conjunction with a small steel plate, depending on the installation conditions. In this embodiment, the two mounting blocks 203 at both ends of the steel cable 201 are fixed to the ground. The two mounting blocks 203 under a single fixing frame 1 can be used to simultaneously straighten the steel cable 201 vertically, so that the steel cable 201 is in a vertical state. Alternatively, one mounting block 203 can be installed directly under the fixing frame 1, with part of the steel cable 201 in a vertical state, and the other mounting block 203 can be installed under another fixing frame 1, with part of the steel cable 201 in a diagonal state. The mounting blocks 203 under the fixing frame 1 on the other side of the photovoltaic panel are also symmetrically distributed, so that the steel cable 201 forms a cross distribution, which helps to distribute the load under the fixing frame 1.

[0055] In this system, the cylinder 2021 is fixed to the column by the fastener 2025. Then, the bolts on the upper movable disk 2024 can be removed, allowing the upper movable disk 2024 to slide freely within the cylinder 2021. Thus, the part from the mounting block 203 to the cylinder 2021 can be considered as forming a whole with the steel cable 201 because the bolts are fastened together with the movable disk 2024 and the cylinder 2021. As for the part from the top of the cylinder 2021 to the fixing frame 1, the movable disk 2024 can compress the spring inside the cylinder 2021. Therefore, when the photovoltaic panel vibrates or is under load at a high position, the steel cable 201 will pull the upper movable disk 2024 to compress the spring inside the cylinder 2021, which will play a certain buffering role and help reduce the damage to the bolts at the high position of the photovoltaic panel in the instantaneous wind force. Moreover, removing the fastener 2025 will not affect the application of the various installation methods in Embodiment 1.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A photovoltaic support reinforcement device, comprising side pressure (3) and central pressure (4) installed on both sides of a photovoltaic panel, characterized in that, Also includes: The mounting bracket (1) is embedded in all the medium pressure (4) or edge pressure (3) on one side of the photovoltaic panel, connecting the edge pressure (3) or medium pressure (4) at the low and high positions of the photovoltaic panel. The connector (2) includes a steel cable (201) and mounting blocks (203) fixed at both ends of the steel cable (201). The middle part of the steel cable (201) is located in the hole below the high position of the fixing frame (1), and the end can be fixed to the bottom of the diagonal side pressure (3) or the middle pressure (4) by bolts, so as to transmit the lifting force or thrust received at the high position to the low position.

2. The photovoltaic support reinforcement device according to claim 1, characterized in that, The steel cable (201) has double-headed clamps (202) symmetrically distributed about the fixing frame (1) for adjusting the distance between the fixing frame (1) and the mounting block (203).

3. The photovoltaic support reinforcement device according to claim 2, characterized in that, The two mounting blocks (203) below the single fixing frame (1) can be fixed by bolts to the bottom of the side pressure (3) or the middle pressure (4) at a diagonal position relative to the fixing frame (1), and the steel cable (201) is in a diagonal state to transfer the negative pressure received at the high position to the low position.

4. The photovoltaic support reinforcement device according to claim 2, characterized in that, The two mounting blocks (203) below a single fixing frame (1) can be clamped to the column below the fixing frame (1) by bolts, and the steel cable (201) is in a vertically straight state to strengthen the connection between the fixing frame (1) and the column.

5. A photovoltaic support reinforcement device according to claim 2, characterized in that, The two mounting blocks (203) below a single fixing frame (1) can be fixed to the bottom of the side pressure (3) or the middle pressure (4) on the same side or diagonally opposite to itself by bolts. Half of the steel cable (201) is inclined and the other half is parallel to the fixing frame (1), balancing the load distribution between the high and low positions of the fixing frame (1).

6. A photovoltaic support reinforcement device according to claim 1, characterized in that, The fixing frame (1) includes a U-shaped part (101) as the main body and a stop strip (102) on both sides or one side of the U-shaped part (101). The U-shaped part (101) has a groove (103) in the middle for bolts to pass through. A U-shaped piece (101) with a single-sided baffle (102) is installed on the side pressure (3), and a U-shaped piece (101) with baffles on both sides (102) is installed on the middle pressure (4).

7. A photovoltaic support reinforcement device according to any one of claims 3-5, characterized in that, The steel cable (201) below the fixing frame (1) is divided into two parts, and a double-headed clamp (202) is clamped on both parts of the steel cable (201). By adjusting the two clamping positions of the double-headed clamp (202), the distance between the fixing frame (1) and the mounting block (203) is adjusted to meet the installation distance.

8. A photovoltaic support reinforcement device according to claim 7, characterized in that, The double-headed clamp (202) includes a cylindrical body (2021) and two sliding rods (2022) symmetrically slidably inserted inside the cylindrical body (2021). The ends of the two sliding rods (2022) near each other are fixedly connected to a movable disk (2024). The movable disk (2024) and the cylindrical body (2021) are both threaded with bolts. A spring is fixedly connected between the movable disk (2024) and the cylindrical body (2021). The cylinder (2021) has multiple vertical holes for bolts to pass through.

9. A photovoltaic support reinforcement device according to claim 8, characterized in that, The sliding rod (2022) is fixedly connected to two clamping plates (2023) at its outward end, and the steel cable (201) clamped between the two clamping plates (2023) is fastened with bolts and nuts.

10. A photovoltaic support reinforcement device according to claim 8, characterized in that, The upper and lower ends of the cylinder (2021) are provided with fasteners (2025), which can be used to fix the cylinder (2021) to the column of the support.

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