A single support structure for photovoltaic load bearing cable failure support repair and replacement and method of use thereof

Abstract

The application discloses a single support structure for repairing and replacing a damaged support of a photovoltaic load-bearing cable and a use method thereof, and belongs to the technical field of solar power generation. The structure comprises a photovoltaic load-bearing cable and a single support support unloading device. The photovoltaic load-bearing cable is supported by a plurality of support frames. The support frame comprises a stand and a support arranged on the stand. The single support support unloading device is arranged on the stand of the support frame where the support has been damaged, and the single support support unloading device supports the photovoltaic load-bearing cable upwards to unload the damaged support. The single support support unloading device is used to unload the damaged support, and all the components of the damaged support can be repaired and replaced. When the single support support unloading device is installed and fixed to the stand, drilling is not needed on the support frame, the operation and use convenience of the single support support unloading device is improved, and the repairing and replacing efficiency of the damaged support is improved.

Description

Technical Field

[0001] This invention relates to a single-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports and its usage method, belonging to the field of solar power generation technology. Background Technology

[0002] With the continuous development of the photovoltaic industry, flexible photovoltaic support systems have been widely used in fields such as fishpond photovoltaics, agricultural photovoltaic integration, and tea photovoltaic integration. A flexible photovoltaic support system mainly includes photovoltaic load-bearing cables for supporting photovoltaic brackets and photovoltaic modules, and multiple support frames for supporting the photovoltaic load-bearing cables. Each support frame includes columns and brackets mounted on the columns.

[0003] During photovoltaic (PV) operation, the supports on the pillars may suffer partial or complete damage under the influence of factors such as strong typhoons or earthquakes. This can affect the load-bearing capacity and stability of the flexible PV support system, threatening the safe operation of the PV supports and modules. Therefore, when supports are damaged, they need to be repaired and replaced promptly.

[0004] Chinese patent document CN116175464A discloses a device and method for the maintenance and replacement of a floating photovoltaic system support structure. The device includes a top support unit fixed above the main support column, comprising a base plate, a telescopic cylinder, and inclined blocks. The upper surface of the inclined blocks is in close contact with the lower surface of the photovoltaic support rod. By controlling the extension of the telescopic cylinder, the inclined blocks are lifted upwards to temporarily support and position the photovoltaic support rod. An inclined bracing unit is fixed to the side wall of the main support column and located below the detachable support components. It includes inclined bracing rods and positioning components. The inclined bracing rods position the two protruding sides of the photovoltaic support rod relative to the main support column, providing temporary support for the photovoltaic support system during disassembly. By pre-setting temporary supports in the middle and on both sides of the photovoltaic support rod, the device achieves the technical effect of maintaining and replacing the support structure of a single photovoltaic sub-string without removing the components and main beam of the photovoltaic support structure, ensuring the normal operation of the photovoltaic system.

[0005] However, this device relies on photovoltaic support rods to provide temporary support for the photovoltaic modules, which has significant limitations. When the photovoltaic support rods are damaged, they cannot be replaced using this device. Furthermore, fixing the upper end of the diagonal brace to the photovoltaic support rod via bolt sets requires drilling holes on the photovoltaic support rod at corresponding positions, reducing the ease of operation and thus decreasing the efficiency of bracket maintenance and replacement. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a single-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports, and a method for using the structure.

[0007] This invention is achieved through the following technical solution:

[0008] A single-support structure for repairing and replacing damaged brackets of photovoltaic load-bearing cables includes a photovoltaic load-bearing cable and a single-support bracket unloading device. The photovoltaic load-bearing cable is supported by multiple support frames. Each support frame includes a column and a bracket mounted on the column. The single-support bracket unloading device is mounted on the column where the bracket is damaged, and the single-support bracket unloading device supports the photovoltaic load-bearing cable upwards to unload the damaged bracket.

[0009] There are two photovoltaic load-bearing cables, and the two photovoltaic load-bearing cables are arranged side by side.

[0010] The single-support bracket unloading device includes a bearing frame and a load-bearing cable support mechanism. The bearing frame is mounted on a column, and the load-bearing cable support mechanism supports the photovoltaic load-bearing cable and is connected to the bearing frame through a lifting mechanism.

[0011] The support frame includes a horizontal cross brace and a diagonal brace B. One end of the diagonal brace B is connected to one end of the horizontal cross brace. A clamp A is provided on the end of the horizontal cross brace away from the diagonal brace B. A clamp B is provided on the end of the diagonal brace B away from the horizontal cross brace. The clamp B and the clamp A are arranged coaxially, and the clamp B is located below the clamp A.

[0012] The support frame also includes a diagonal brace A, one end of which is connected to the middle of a horizontal cross brace, and the other end is connected to a clamp B.

[0013] The load-bearing cable support mechanism includes a top support rod and load-bearing cable limiting components located at both ends of the top support rod.

[0014] The load-bearing cable limiting assembly includes two limiting blocks arranged side by side on the top support rod.

[0015] The lifting mechanism includes a support, a jack, and a vertical support rod. The support is mounted on a support frame. The lower end of the jack is movably mounted inside the support. The lower end of the vertical support rod is fixedly connected to the upper end of the jack, and the upper end is connected to the middle of the top support rod through a fastening assembly.

[0016] The support includes a square steel plate and multiple vertical limiting blocks disposed on the square steel plate. The multiple vertical limiting blocks are arranged along the edge of the jack's base and restrict the base's degree of freedom in the horizontal direction. A horizontal limiting block is provided on the side of the vertical limiting block closest to the jack, and the distance from the horizontal limiting block to the square steel plate is not less than twice the thickness of the base.

[0017] A method for using a single-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports includes the following steps:

[0018] Step 1: Adjust the orientation of the single support structure according to the requirements, and then tighten and fix clamp A and clamp B to the damaged column of the support frame to achieve the installation and fixation of the single support structure.

[0019] Step 2: Push the load-bearing cable support mechanism upward using the lifting mechanism, and make the photovoltaic load-bearing cable correspondingly engage with the load-bearing cable limiting component at the end of the top support rod;

[0020] Step 3: Continue to push the load-bearing cable support mechanism upward through the lifting mechanism to support the photovoltaic load-bearing cable and unload the damaged support.

[0021] Step 4: Remove the damaged bracket from the column and install and fix the new bracket to the column;

[0022] Step 5: Use the lifting mechanism to pull the load-bearing cable support mechanism down to below the photovoltaic load-bearing cable, so that the new bracket can support the photovoltaic load-bearing cable. Then loosen clamps A and B, and separate the single support structure from the column to disassemble the single support structure for reuse.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. The single-support bracket unloading device replaces the damaged bracket to support the photovoltaic load-bearing cable and unloads the damaged bracket. It can repair or replace the damaged flat support rod, damaged column and damaged inclined beam. That is, it can repair and replace all the components of the damaged bracket, which improves the practicality of the single-support bracket unloading device.

[0025] 2. When the single support bracket unloading device is installed and fixed on the column, it is not necessary to drill holes in the support frame, which avoids stress concentration or damage to the support frame. At the same time, it improves the ease of operation and use of the single support bracket unloading device, thereby improving the efficiency of repair and replacement of damaged brackets.

[0026] 3. Using clamps A and B, the support frame can be quickly and securely installed onto the column, facilitating timely repair and replacement of damaged supports. This ensures the support frame's load-bearing capacity and stability for the flexible photovoltaic support system, thereby guaranteeing the safe operation of the photovoltaic support frame and photovoltaic modules.

[0027] 4. By using two limiting blocks in the load-bearing cable limiting assembly to limit the photovoltaic load-bearing cable, the photovoltaic load-bearing cable is only free to move upwards, preventing it from slipping off the top support rod during the jacking process. This effectively ensures the safety and operability of the single support structure when the jack is lifted upwards.

[0028] 5. Multiple vertical limiting blocks limit the base in the horizontal direction to prevent the jack from shifting to the side, and horizontal limiting blocks support the middle of the jack to prevent it from tipping over, which is conducive to the safe removal and replacement of damaged supports.

[0029] 6. The structure is relatively simple. The single-support bracket unloading device can be made using waste materials from the construction site, which effectively improves the comprehensive utilization rate of materials on the construction site and reduces the manufacturing cost of the single-support bracket unloading device. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 yes Figure 1 Sectional view along DD;

[0032] Figure 3 yes Figure 2 Sectional view along EE;

[0033] Figure 4 yes Figure 2 Sectional view along FF;

[0034] Figure 5 yes Figure 1 A magnified view of the area at point J;

[0035] Figure 6 yes Figure 1 A magnified view of the area at point K;

[0036] Figure 7 This is a flowchart illustrating the steps of using the present invention.

[0037] In the diagram: 1-Top support rod, 2-Vertical support rod, 3-Jack, 30-Base, 4-Vertical limit block, 5-Horizontal limit block, 6-Square steel plate, 7-Horizontal cross brace, 8-Diagonal brace A, 9-Diagonal brace B, 10-Clamping hoop A, 11-Clamping hoop B, 12-Limit block, 13-Fastening component, 14-Damaged inclined beam, 15-Damaged column, 16-Damaged horizontal brace, 17-Column, 18-Photovoltaic load-bearing cable, 19-Water surface. Detailed Implementation

[0038] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0039] like Figures 1 to 7As shown, the present invention discloses a single-support structure for repairing and replacing damaged photovoltaic load-bearing cables, comprising a photovoltaic load-bearing cable 18 and a single-support unloading device. The photovoltaic load-bearing cable 18 is supported by multiple support frames, each support frame including a column 17 and a bracket mounted on the column 17. The single-support unloading device is mounted on the column 17 where the bracket has been damaged, and the single-support unloading device supports the photovoltaic load-bearing cable 18 upwards to unload the damaged bracket. Figure 1 As shown, during use, the support is positioned above the water surface 19. The damaged support includes a damaged horizontal support rod 16, a damaged column 15, and two damaged inclined beams 14. A single-support support unloading device is used to replace the damaged support to support the photovoltaic load-bearing cable 18 and to unload the damaged support. This allows for the repair or replacement of the damaged horizontal support rod 16, the damaged column 15, and the damaged inclined beams 14, meaning all components of the damaged support can be repaired or replaced, improving the practicality of the single-support support unloading device. Furthermore, when the single-support support unloading device is installed and fixed to the column 17, drilling is not required on the support frame, avoiding stress concentration or damage to the support frame. This also improves the ease of operation and use of the single-support support unloading device, thereby increasing the efficiency of repairing and replacing the damaged support.

[0040] There are two photovoltaic load-bearing cables 18, and the two photovoltaic load-bearing cables 18 are arranged side by side.

[0041] The single-support bracket unloading device includes a bearing frame and a load-bearing cable support mechanism. The bearing frame is mounted on the column 17, and the load-bearing cable support mechanism supports the photovoltaic load-bearing cable 18 and is connected to the bearing frame through a lifting mechanism.

[0042] The support frame includes horizontal cross braces 7 and diagonal braces B9. One end of the diagonal brace B9 is connected to one end of the horizontal cross brace 7. A clamp A10 is provided on the end of the horizontal cross brace 7 away from the diagonal brace B9, and a clamp B11 is provided on the end of the diagonal brace B9 away from the horizontal cross brace 7. Clamp B11 is coaxially arranged with clamp A10 and is located below clamp A10. In use, clamps A10 and B11 allow for quick and non-destructive installation and fixation of the support frame to the column 17, facilitating timely repair and replacement of damaged supports. This ensures the support frame's load-bearing capacity and stability for the flexible photovoltaic support system, thereby guaranteeing the safe operation of the photovoltaic support and photovoltaic modules. It is recommended that the horizontal cross brace 7 be made of channel steel or box-shaped steel. The dimensions and strength of clamps A10 and B11 must meet the stress requirements of a single-support structure.

[0043] The support frame also includes diagonal bracing rods A8, one end of which is connected to the middle of the horizontal cross brace 7, and the other end is connected to a clamp B11. Diagonal bracing rods A8 improve the strength and rigidity of the support frame. It is recommended that diagonal bracing rods A8 and B9 be made of angle steel or channel steel, but this can be selected according to the actual situation.

[0044] The load-bearing cable support mechanism includes a top support rod 1 and load-bearing cable limiting components located at both ends of the top support rod 1.

[0045] The load-bearing cable limiting assembly includes two limiting blocks 12 arranged side-by-side on the top support rod 1. In use, the net distance between the two limiting blocks 12 is the same as the diameter of the photovoltaic load-bearing cable 18, and the height of the limiting blocks 12 is not less than twice the diameter of the photovoltaic load-bearing cable 18. The two limiting blocks 12 in the load-bearing cable limiting assembly work together to limit the photovoltaic load-bearing cable 18, allowing it only upward freedom. This prevents the photovoltaic load-bearing cable 18 from slipping off the top support rod 1 during the lifting process of the jack 3, effectively ensuring the safety and operability of the single-support structure when the jack 3 is lifted upwards. The limiting blocks 12 can be made of materials with a strength grade not lower than... It is made of steel bars, box-shaped steel or angle steel, and can also be selected according to the actual situation.

[0046] The lifting mechanism includes a support, a jack 3, and a vertical support rod 2. The support is mounted on a support frame. The lower end of the jack 3 is movably mounted within the support. The lower end of the vertical support rod 2 is fixedly connected to the upper end of the jack 3, and its upper end is connected to the middle of the top support rod 1 via a fastening assembly 13. In use, the support can be welded and fixed to the support frame. The fastening assembly 13 includes bolts and nuts, spring washers, and flat washers fitted onto the bolts. The length of the top support rod 1 should simultaneously meet the requirements of the net distance between the photovoltaic load-bearing cables 18 and the support extension distance. It is recommended that the top support rod 1 be made of angle steel or box-shaped steel, and its cross-sectional dimensions must be determined based on the maximum downward pressure of the photovoltaic load-bearing cables 18 on site.

[0047] The support includes a square steel plate 6 and multiple vertical limiting blocks 4 mounted on the square steel plate 6. The multiple vertical limiting blocks 4 are arranged along the edge of the base 30 of the jack 3, restricting the horizontal freedom of the base 30. A horizontal limiting block 5 is provided on the side of the vertical limiting block 4 closest to the jack 3, and the distance from the horizontal limiting block 5 to the square steel plate 6 is not less than twice the thickness of the base 30. The multiple vertical limiting blocks 4 limit the base 30 horizontally, preventing lateral displacement of the jack 3, and the horizontal limiting blocks 5 provide support for the center of the jack 3, preventing it from tipping over, which facilitates safe dismantling and replacement of damaged supports. It is recommended that the materials of the vertical limiting blocks 4 and the horizontal limiting blocks 5 be [material name missing]. The steel bars, box-shaped steel, or angle steel of 6 and above can be selected according to the actual site conditions. The minimum side length of the square steel plate 6 shall not be less than 1.5 times the side length of the long side of the base 30.

[0048] A method for using a single-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports includes the following steps:

[0049] Step 1: Adjust the orientation of the single support structure according to the requirements, and then tighten and fix clamps A10 and B11 to the damaged column 17 of the support frame to achieve the installation and fixation of the single support structure.

[0050] Step 2: Push the load-bearing cable support mechanism upward using the lifting mechanism, and engage the photovoltaic load-bearing cable 18 into the load-bearing cable limiting assembly at the end of the top support rod 1. Engaging the photovoltaic load-bearing cable 18 into the load-bearing cable limiting assembly at the end of the top support rod 1 means engaging the photovoltaic load-bearing cable 18 between the two limiting plates 12 of the load-bearing cable limiting assembly.

[0051] Step 3: Continue to push the load-bearing cable support mechanism upward through the lifting mechanism to support the photovoltaic load-bearing cable 18 and unload the damaged support.

[0052] Step 4: Remove the damaged bracket on column 17 and install and fix the new bracket on column 17.

[0053] Step 5: Use the lifting mechanism to pull the load-bearing cable support mechanism down to below the photovoltaic load-bearing cable 18, so that the new bracket supports the photovoltaic load-bearing cable 18. Then loosen clamps A10 and B11, and separate the single support structure from the column 17 to disassemble the single support structure for reuse.

Claims

1. A single-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports, characterized in that: The photovoltaic load-bearing cable (18) and a single support bracket unloading device are included. The photovoltaic load-bearing cable (18) is supported by multiple support frames. The support frame includes a column (17) and a bracket on the column (17). The single support bracket unloading device is installed on the column (17) in the support frame where the bracket has been damaged. The single support bracket unloading device supports the photovoltaic load-bearing cable (18) upward to unload the damaged bracket. The single support bracket unloading device includes a bearing frame and a load-bearing cable support mechanism. The bearing frame is mounted on the column (17), and the load-bearing cable support mechanism supports the photovoltaic load-bearing cable (18) and is connected to the bearing frame through a lifting mechanism. The support frame includes a horizontal cross brace (7) and a diagonal brace B (9). One end of the diagonal brace B (9) is connected to one end of the horizontal cross brace (7). A clamp A (10) is provided on the end of the horizontal cross brace (7) away from the diagonal brace B (9). A clamp B (11) is provided on the end of the diagonal brace B (9) away from the horizontal cross brace (7). The clamp B (11) and the clamp A (10) are arranged coaxially, and the clamp B (11) is located below the clamp A (10). The load-bearing cable support mechanism includes a top support rod (1) and load-bearing cable limiting components located at both ends of the top support rod (1); The lifting mechanism includes a support, a jack (3) and a vertical support rod (2). The support is mounted on a support frame. The lower end of the jack (3) is movably mounted inside the support. The lower end of the vertical support rod (2) is fixedly connected to the upper end of the jack (3). The upper end is connected to the middle of the top support rod (1) through a fastening assembly (13).

2. The single-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports as described in claim 1, characterized in that: There are two photovoltaic load-bearing cables (18), and the two photovoltaic load-bearing cables (18) are arranged side by side.

3. The single-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports as described in claim 1, characterized in that: The support frame also includes a diagonal brace A (8), one end of which is connected to the middle of the horizontal cross brace (7), and the other end is connected to the clamp B (11).

4. The single-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports as described in claim 1, characterized in that: The load-bearing cable limiting assembly includes two limiting blocks (12) arranged side by side on the top support rod (1).

5. The single-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports as described in claim 1, characterized in that: The support includes a square steel plate (6) and multiple vertical limiting blocks (4) on the square steel plate (6). The multiple vertical limiting blocks (4) are arranged along the edge of the base (30) of the jack (3) and restrict the degree of freedom of the base (30) in the horizontal direction. A horizontal limiting block (5) is provided on the side of the vertical limiting block (4) near the jack (3), and the distance from the horizontal limiting block (5) to the square steel plate (6) is not less than twice the thickness of the base (30).

6. A method of using a single-support structure for repairing and replacing damaged photovoltaic load-bearing cable supports as described in any one of claims 1 to 5, characterized in that: Includes the following steps: Step 1: Adjust the orientation of the single support structure according to the requirements, and then tighten and fix the clamps A (10) and B (11) on the column (17) of the support frame where the support has been damaged, so as to realize the installation and fixation of the single support structure. Step 2: Push the load-bearing cable support mechanism upward through the lifting mechanism, and make the photovoltaic load-bearing cable (18) correspondingly engage with the load-bearing cable limiting component at the end of the top support rod (1); Step 3: Continue to push the load-bearing cable support mechanism upward through the lifting mechanism to support the photovoltaic load-bearing cable (18) and unload the damaged support. Step 4: Remove the damaged bracket on the column (17) and install and fix the new bracket on the column (17); Step 5: Use the lifting mechanism to pull the load-bearing cable support mechanism down to the bottom of the photovoltaic load-bearing cable (18), so that the new bracket supports the photovoltaic load-bearing cable (18). Then loosen clamp A (10) and clamp B (11) and separate the single support structure from the column (17) to disassemble the single support structure for reuse.

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