Photovoltaic support and leveling device and leveling method thereof

Abstract

The invention relates to the technical field of photovoltaic support installation, adjustment and maintenance, in particular to a photovoltaic support and a leveling device and a leveling method.The leveling device comprises a fixing hoop and two sharp-bottomed double-fork rod type jacks, the fixing hoop is used for being attached to a foundation stand column of the photovoltaic support in a surrounding mode, and the two sharp-bottomed double-fork rod type jacks are arranged on the foundation stand column; the pointed-bottom double-fork rod type jack is used for being supported between the fixing hoop and a lower hoop of the photovoltaic support. The fixing hoop comprises two annular hoop steel plates which are connected through fastening bolts, and annular stiffening ribs are arranged on the annular hoop steel plates; the pointed-bottom double-fork rod type jack comprises a bottom jacking insertion plate, a jacking assembly, a double-fork jacking supporting piece and a double-fork stop rod. The bottom jacking insertion plate is used for limiting lateral movement of the bottom of the pointed-bottom double-fork rod type jack. The jacking assembly is used for leveling the photovoltaic bracket; the double-fork stop lever is used for limiting lateral movement of the top of the sharp-bottomed double-fork rod type jack; therefore, safe and accurate leveling of the photovoltaic support can be achieved, and meanwhile the adaptability to photovoltaic supports of different specifications can be improved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic bracket installation, adjustment and maintenance technology, and in particular to a photovoltaic bracket and its leveling device and leveling method. Background Technology

[0002] As the core load-bearing structure supporting photovoltaic modules, photovoltaic support brackets must withstand the influence of complex outdoor environments for a long time, such as strong wind loads, the weight of accumulated rain and snow, diurnal temperature stress, and uneven foundation settlement. They are prone to deformation problems such as tilting and bending. After the photovoltaic support brackets are deformed, on the one hand, the photovoltaic modules will deviate from the optimal tilt angle, significantly reducing the solar energy reception efficiency and thus causing a loss of power generation in the photovoltaic system. On the other hand, the additional stress generated by the deformation will accelerate the fatigue of the support structure, which may lead to safety hazards such as loose bolts and broken module glass, and shorten the service life of the photovoltaic power station.

[0003] Existing photovoltaic (PV) bracket leveling devices suffer from poor stability. They rely heavily on ordinary jacks for direct lifting, lacking a dedicated fixing structure for the bracket columns. This makes them prone to slippage during lifting, posing a risk of equipment damage. Furthermore, existing PV bracket leveling devices are inefficient, requiring multiple people to coordinate the fixing of the brackets, measuring flatness, and tightening bolts. Repeated wrench use is necessary for bolt tightening, resulting in excessively long leveling times for a single bracket. The adaptability of existing PV bracket leveling devices is limited; the fixed top support structure of the jacks cannot accommodate PV brackets with different cross-sectional shapes (such as C-shaped steel or square tubing). Moreover, the leveling accuracy of existing PV bracket leveling devices is insufficient, lacking stable reaction support points. During lifting, the brackets are prone to lateral displacement, making it difficult to control the flatness error within 0.2°. Summary of the Invention

[0004] The purpose of this invention is to provide a photovoltaic support structure, a leveling device, and a leveling method, which can solve the problems of poor fixation reliability, poor adaptability, and insufficient leveling accuracy of existing photovoltaic support leveling devices.

[0005] To solve the above-mentioned technical problems, the present invention provides a leveling device for a photovoltaic support, comprising: a fixed clamp and two pointed-bottom double-pronged jacks. The fixed clamp is used to surround and fit against the outer wall of the foundation column of the photovoltaic support, and the pointed-bottom double-pronged jacks are used to support between the fixed clamp and the lower clamp of the photovoltaic support. The fixed clamp includes two annular clamp steel plates detachably connected by fastening bolts, and the two annular clamp steel plates can form an accommodating space that matches the outer diameter of the foundation column. The outer wall of the annular clamp steel plates is provided with annular stiffening ribs extending circumferentially. The pointed-bottom double-pronged jacks include bottom lifting mechanisms. The jack comprises a bottom lifting plate, a lifting assembly, a double-forked lifting support, and a double-forked stop bar. The bottom lifting plate is connected to the bottom of the lifting assembly, the double-forked lifting support is rotatably connected to the top of the lifting assembly, and the double-forked stop bar is connected to the top surface of the double-forked lifting support. The bottom lifting plate is used to engage with the fastening bolts to limit the lateral movement of the bottom of the pointed-bottom double-forked jack. The lifting assembly is used to drive the double-forked lifting support to lift the lower clamp of the photovoltaic bracket to level the photovoltaic bracket. The double-forked stop bar is used to engage with the connecting bolts of the lower clamp of the photovoltaic bracket to limit the lateral movement of the top of the pointed-bottom double-forked jack.

[0006] Optionally, the lifting assembly includes a connected rod jack cylinder, a rod jack top column, and a jack hydraulic rod. The bottom of the rod jack cylinder is connected to the bottom lifting plate, and the top of the rod jack top column is rotatably connected to the double-forked lifting support. The jack hydraulic rod is used to drive the rod jack top column to extend and retract along the axial direction of the rod jack cylinder.

[0007] Optionally, the bottom lifting plate is provided with a first slot at the end away from the rod jack cylinder, and the first slot is used to engage with the fastening bolt.

[0008] Optionally, a bearing is fitted onto the top of the rod-type jack's top column, and the bearing is connected to the double-forked lifting support.

[0009] Optionally, the double-forked stop bar includes two stop bars arranged opposite each other, with a second groove formed between the two stop bars, the second groove being used to engage with the connecting bolt.

[0010] Optionally, the annular stiffening rib is disposed near the edge of the outer wall of the annular clamp steel plate. The annular clamp steel plate includes an arched section and connecting sections disposed on both sides of the arched section. The annular stiffening rib includes a first stiffening rib and a second stiffening rib symmetrically disposed, with a gap between the first stiffening rib and the second stiffening rib.

[0011] Optionally, the fixing clamp further includes two opposing limiting baffles, which are connected to an annular clamp steel plate used to fix the bolt head of the fastening bolt.

[0012] To solve the above-mentioned technical problems, the present invention also provides a leveling method for the leveling device of the photovoltaic support described above. The leveling method includes: wrapping the fixing clamp around and fitting it to the outer wall of the foundation column of the target photovoltaic support; installing the two pointed-bottom double-pronged jacks on both sides of the fixing clamp; engaging the bottom lifting plate with the fastening bolt; pressing the double-pronged lifting support against the bottom of the lower clamp; and engaging the double-pronged stop bar with the connecting bolt of the lower clamp; loosening the connecting bolts of the upper and lower clamps of the target photovoltaic support so that the target photovoltaic support can move along the foundation column. The axial movement of the foundation column; the lifting component drives the double-forked lifting support to lift the target photovoltaic bracket. After the target photovoltaic bracket is lifted to a preset height, the flatness of the upper component's inclined surface is measured, and it is determined whether the flatness error between the flatness of the upper component's inclined surface and the target flatness is less than or equal to a preset threshold. If not, the target photovoltaic bracket is lifted to the preset height until the flatness error is less than or equal to the preset threshold. The connecting bolts of the upper and lower clamps of the target photovoltaic bracket are tightened, and the pointed-bottom double-forked jack and the fixed clamp are removed to complete the leveling of the target photovoltaic bracket.

[0013] Optionally, the step of driving the double-pronged lifting support to lift the photovoltaic bracket via the lifting assembly includes: pressing the hydraulic rod of the jack of the lifting assembly to drive the rod-type jack column of the lifting assembly to extend along the axial direction of the rod-type jack cylinder of the lifting assembly to lift the target photovoltaic bracket.

[0014] To solve the above-mentioned technical problems, the present invention also provides a photovoltaic bracket, wherein the photovoltaic bracket is leveled using the leveling method described above.

[0015] Compared with the prior art, the photovoltaic support structure, leveling device, and leveling method provided by the present invention have the following beneficial effects:

[0016] The photovoltaic support leveling device provided by this invention includes a fixed clamp and two pointed-bottom double-pronged jacks. The fixed clamp is used to surround and fit against the outer wall of the foundation column of the photovoltaic support, and the pointed-bottom double-pronged jacks are used to support between the fixed clamp and the lower clamp of the photovoltaic support. The fixed clamp includes two annular clamp steel plates that are detachably connected by fastening bolts. The two annular clamp steel plates can form an accommodating space that matches the outer diameter of the foundation column. The outer wall of the annular clamp steel plates is provided with annular stiffening ribs extending circumferentially. The pointed-bottom double-pronged jacks include a bottom lifting plate and a lifting assembly. The system comprises a double-forked lifting support and a double-forked stop bar. The bottom lifting plate is connected to the bottom of the lifting assembly. The double-forked lifting support is rotatably connected to the top of the lifting assembly. The double-forked stop bar is connected to the top surface of the double-forked lifting support. The bottom lifting plate is used to engage with the fastening bolt to limit the lateral movement of the bottom of the double-forked jack. The lifting assembly is used to drive the double-forked lifting support to lift the lower clamp of the photovoltaic bracket to level the photovoltaic bracket. The double-forked stop bar is used to engage with the connecting bolt of the lower clamp of the photovoltaic bracket to limit the lateral movement of the top of the double-forked jack.

[0017] Therefore, by connecting annular stiffening ribs to the annular clamp steel plate to enhance its rigidity, the deformation of the annular clamp steel plate under stress is effectively avoided, ensuring stable clamping force. In addition, by engaging the double-forked stop bar of the pointed-bottom double-forked jack with the connecting bolt of the lower clamp of the photovoltaic bracket, lateral instability of the pointed-bottom double-forked jack can be prevented. Furthermore, by engaging the bottom lifting plate of the pointed-bottom double-forked jack with the fastening bolt of the fixed clamp, a stable reaction point is formed, completely solving the slippage problem of the existing photovoltaic bracket leveling device. There is no risk of equipment damage or personnel injury during the operation.

[0018] Furthermore, the double-pronged lifting support is rotatably connected to the top of the lifting assembly of the pointed-bottom double-pronged jack, enabling 360° free rotation. It can be adapted to the lower clamps of different types of photovoltaic brackets, and can tighten the photovoltaic bracket from multiple angles, solving the problem of poor adaptability of traditional jacks. At the same time, the double-pronged lifting support can be finely adjusted during the lifting process (10mm per step) to ensure that the flatness error is less than or equal to the preset threshold, ensuring that the photovoltaic bracket is at a suitable tilt angle, which can solve the problem of insufficient leveling accuracy of existing photovoltaic bracket leveling devices.

[0019] Furthermore, the core components of the photovoltaic bracket leveling device provided by this invention are made of conventional steel and hydraulic components, which are easy to process, have low production costs, and are reusable (with a service life of more than or equal to 5 years), thus reducing the long-term maintenance costs of photovoltaic power plants.

[0020] The leveling method provided by this invention is used in the leveling device described above. It forms a stable reaction base by fixing the device around the target photovoltaic support foundation column with a fixed clamp. Simultaneously, it engages the bottom lifting plate with the fastening bolts and the double-forked stop bar with the connecting bolts of the lower clamp of the photovoltaic support. This completely solves the problem of easy slippage when using ordinary jacks for direct lifting in existing devices, preventing lateral displacement of the pointed-bottom double-forked jack during lifting and ensuring safety during the lifting process. Secondly, the adjustment method provided by this invention allows for the adjustment of the angle of the double-forked lifting support by rotation, adapting to the lower clamps of different types of photovoltaic supports. This enables the photovoltaic support to be tightened from multiple angles, improving its universal adaptability to photovoltaic supports of different specifications and structures, and ensuring that the flatness error is strictly controlled within a preset threshold. Furthermore, the leveling method provided by this invention requires only one person to complete the entire operation, eliminating the need for multiple people to work together, measure flatness, and repeatedly use wrenches for assistance. This significantly simplifies the operation process, effectively shortens the leveling time for a single support group, and significantly improves the efficiency of the leveling operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the leveling device provided in one embodiment of the present invention before leveling.

[0022] Figure 2 This is a schematic diagram of the leveling device provided in one embodiment of the present invention after leveling.

[0023] Figure 3 The front view of the fixing clamp of the leveling device provided in one embodiment of the present invention.

[0024] Figure 4 This is a top view of the fixing clamp of the leveling device provided in one embodiment of the present invention.

[0025] Figure 5 The rear view of the fixing clamp of the leveling device provided in one embodiment of the present invention.

[0026] Figure 6 for Figure 4 Sectional view at point AA.

[0027] Figure 7 A front view of a pointed-bottom double-pronged jack in a retracted state, which is part of a leveling device provided in one embodiment of the present invention.

[0028] Figure 8 A side view of a pointed-bottom double-pronged jack in a retracted state, which is part of a leveling device provided according to an embodiment of the present invention.

[0029] Figure 9 A front view of a pointed-bottom double-pronged jack in the lifting state of a leveling device provided in one embodiment of the present invention.

[0030] Figure 10 A side view of a pointed-bottom double-pronged jack in the lifting state of a leveling device provided in one embodiment of the present invention.

[0031] Figure 11 This is a schematic diagram of the double-forked lifting support structure of a leveling device provided in one embodiment of the present invention.

[0032] Figure 12 for Figure 11 Sectional view at point BB.

[0033] Figure 13 A flowchart of a leveling method provided in one embodiment of the present invention.

[0034] The reference numerals in the attached figures are explained as follows:

[0035] 1-Fixing clamp, 101-Annular clamp steel plate, 102-Fasting bolt, 103-Annular stiffening rib, 104-Arch-shaped section, 105-Connecting section, 106-First stiffening rib, 107-Second stiffening rib, 108-Gap, 109-Limiting baffle, 110-Bolt head, 111-Threaded rod, 112-Hexagonal nut, 113-Steel pad, 114-Bolt mounting hole, 2-Pointed bottom double-forked jack, 201-Bottom top 202-Double-fork lifting support, 203-Double-fork stop bar, 204-Lifting assembly, 205-Pole jack cylinder, 206-Pole jack top column, 207-Jack hydraulic rod, 208-First slot, 209-Bearing, 210-Stop bar, 211-Second slot, 3-Photovoltaic bracket, 301-Foundation column, 302-Lower clamp, 303-Connecting bolt, 304-Lower clamp steel plate, 305-Upper clamp. Detailed Implementation

[0036] The photovoltaic support structure, its leveling device, and its leveling method proposed in this invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this invention will become clearer from the following description. Please refer to the accompanying drawings for the objectives, features, and advantages of this invention to make them more apparent and understandable.

[0037] The core idea of ​​this invention is to provide a photovoltaic support bracket and its leveling device and leveling method to solve the problems of poor fixing reliability, low operating efficiency, poor adaptability and insufficient leveling accuracy of existing photovoltaic support leveling devices.

[0038] To achieve the above-mentioned goals, this invention provides a leveling device for photovoltaic brackets. Please refer to [reference needed]. Figures 1 to 12 ,like Figures 1 to 12As shown, the photovoltaic bracket leveling device provided by the present invention includes: a fixed clamp 1 and two pointed-bottom double-forked jacks 2. The fixed clamp 1 is used to surround and fit against the outer wall of the foundation column 301 of the photovoltaic bracket 3. The pointed-bottom double-forked jacks 2 are used to support between the fixed clamp 1 and the lower clamp 302 of the photovoltaic bracket 3. The fixed clamp 1 includes two annular clamp steel plates 101 that are detachably connected by fastening bolts 102. The two annular clamp steel plates 101 can form an accommodating space that matches the outer diameter of the foundation column 301. The outer wall of the annular clamp steel plate 101 is provided with annular stiffening ribs 103 extending circumferentially. The pointed-bottom double-forked jacks 2 include a bottom lifting plate 201, a lifting component 204, and a double-forked jack. The system includes a lifting support 202 and a double-forked stop bar 203. The bottom lifting plate 201 is connected to the bottom of the lifting assembly 204, and the double-forked lifting support 202 is rotatably connected to the top of the lifting assembly 204. The double-forked stop bar 203 is connected to the top surface of the double-forked lifting support 202. The bottom lifting plate 201 is used to engage with the fastening bolt 102 to limit the lateral movement of the bottom of the pointed-bottom double-forked jack 2. The lifting assembly 204 is used to drive the double-forked lifting support 202 to lift the lower clamp 302 of the photovoltaic bracket 3 to level the photovoltaic bracket 3. The double-forked stop bar 203 is used to engage with the connecting bolt 303 of the lower clamp 302 of the photovoltaic bracket 3 to limit the lateral movement of the top of the pointed-bottom double-forked jack 2.

[0039] Therefore, by connecting the annular stiffening ribs 103 to the annular clamp steel plate 101 to enhance the rigidity of the annular clamp steel plate 101, the deformation of the annular clamp steel plate 101 under stress is effectively avoided, ensuring stable clamping force. In addition, by engaging the double-forked stop bar 203 of the pointed-bottom double-forked jack 2 with the connecting bolt 303 of the lower clamp 302 of the photovoltaic bracket 3, lateral instability of the pointed-bottom double-forked jack 2 can be prevented. Furthermore, by engaging the bottom lifting plate 201 of the pointed-bottom double-forked jack 2 with the fastening bolt 102 of the fixed clamp 1, a stable reaction point is formed, completely solving the slippage problem of the existing photovoltaic bracket leveling device. There is no risk of equipment damage or personnel injury during the operation.

[0040] Furthermore, the double-pronged lifting support 202 is rotatably connected to the top of the lifting component 204 of the pointed-bottom double-pronged jack 2, enabling 360° free rotation. It can adapt to the lower clamp 302 of different types of photovoltaic brackets 3, and can tighten the photovoltaic bracket 3 from multiple angles, solving the problem of poor adaptability of traditional jacks. At the same time, the double-pronged lifting support 202 can be finely adjusted during the lifting process (10mm per step) to ensure that the flatness error is less than or equal to the preset threshold, ensuring that the photovoltaic bracket 3 is at a suitable tilt angle, which can solve the problem of insufficient leveling accuracy of existing photovoltaic bracket leveling devices; preferably, the preset threshold is 0.2°.

[0041] Furthermore, the core components of the photovoltaic bracket leveling device provided by this invention are made of conventional steel and hydraulic components, which are easy to process, have low production costs, and can be reused (with a service life of more than or equal to 5 years), thus reducing the long-term maintenance costs of photovoltaic power plants.

[0042] Please refer to Figures 7 to 12 ,like Figures 7 to 12 As shown, the lifting assembly 204 includes a connected rod jack cylinder 205, a rod jack top column 206, and a jack hydraulic rod 207. The bottom of the rod jack cylinder 205 is connected to the bottom lifting insert 201, and the top of the rod jack top column 206 is rotatably connected to the double-forked lifting support 202. The jack hydraulic rod 207 is used to drive the rod jack top column 206 to extend and retract along the axial direction of the rod jack cylinder 205.

[0043] Therefore, by engaging the bottom lifting plate 201 with the fastening bolt 102 of the fixing clamp 1, the bottom of the pointed-bottom double-forked jack 2 can be laterally limited and a stable reaction point can be formed. By cooperating the double-forked stop bar 203 of the double-forked lifting support 202 with the lower clamp 302 of the photovoltaic bracket 3, the top of the pointed-bottom double-forked jack 2 can be laterally limited, thus completely solving the slippage problem of the existing photovoltaic bracket leveling device.

[0044] Furthermore, the bottom lifting plate 201 has a pointed bottom structure, which is used to insert into the gap between the two annular clamp steel plates 101 of the fixing clamp 1, and is engaged with the screw 111 of the fastening bolt 102 to provide lifting reaction force. The rod jack cylinder 205 has a hollow structure and is filled with the hydraulic oil required for hydraulic pressure. The rod jack top column 206 is slidably set in the rod jack cylinder 205. The double-forked lifting support 202 is rotatably connected to the top of the rod jack top column 206, which can achieve 360° rotation and is suitable for various types of photovoltaic brackets. It is used to tighten the lower clamp 302 of the photovoltaic bracket 3. The jack hydraulic rod 207 is connected to the rod jack cylinder 205. By pressing the jack hydraulic rod 207, the rod jack top column 206 is driven to extend and retract along the axial direction of the rod jack cylinder 205.

[0045] Preferably, the bottom lifting plate 201 is made of high-strength alloy steel (40Cr), with a pointed bottom angle of 30° to 45°. Furthermore, the top of the bottom lifting plate 201 is welded to the bottom of the rod-type jack cylinder 205. When leveled, the bottom lifting plate 201 can be directly inserted into the threaded rod 111 of the fastening bolt 102 in the gap between the two annular clamp steel plates 101 of the fixing clamp 1, forming a stable reaction support point and preventing displacement of the pointed-bottom double-forked rod jack 2. The rod-type jack cylinder 205 is made of seamless steel pipe (material: 20# steel, outer diameter: φ60 mm to φ80 mm, wall thickness: 8 mm). The rod jack cylinder 205 is machined to a thickness of 10mm and has an internal hydraulic chamber. It provides a guide for the telescopic movement of the rod jack column 206. The rod jack column 206 is clearance-fitted with the rod jack cylinder 205 and is made of 45# steel with a tempered hardness of HRC (Rockwell hardness C scale) 28-32. It can extend and retract axially along the rod jack cylinder 205, with a maximum extension stroke of 300 mm to 400 mm. The double-forked lifting support 202 is forged from Q235 or higher grade steel and can rotate freely 360° at the top of the rod jack column 206. Its width is 70 mm. The lower clamp 302, with a diameter up to 100mm, is compatible with different types of photovoltaic brackets 3 and can tighten the bracket from multiple angles, solving the problem of poor compatibility of traditional jacks. The hydraulic rod 207 of the jack is a manual hydraulic push rod, which is connected to the hydraulic chamber of the rod jack cylinder 205. When pressed, it can drive the hydraulic oil to push the rod jack top column 206 to extend. The lifting force range is 5t to 10t, which can meet the lifting needs of photovoltaic brackets 3 of different specifications (easy pressing operation by a single person).

[0046] Please continue to refer to this. Figure 7 ,like Figure 7 As shown, the bottom lifting plate 201 is provided with a first slot 208 at one end away from the rod jack cylinder 205. The first slot 208 is used to engage with the fastening bolt 102.

[0047] Therefore, by setting the first slot 208, the stability of the connection between the bottom lifting plate 201 and the fastening bolt 102 can be effectively improved.

[0048] Furthermore, the first slot 208 has a U-shaped cross-section, and the dimensions of the first slot 208 are adapted to the outer diameter of the screw 111 of the fastening bolt 102.

[0049] Please continue to refer to this. Figure 7 ,like Figure 7 As shown, a bearing 209 is sleeved on the top of the rod jack column 206, and the bearing 209 is connected to the double-forked lifting support 202.

[0050] Therefore, this double-forked lifting support 202 can rotate freely on the top of the rod jack column 206 via the bearing 209, so as to adapt to the lower clamp 302 of different types of photovoltaic brackets 3, and can tighten the photovoltaic brackets 3 from multiple angles.

[0051] Furthermore, the inner ring of the bearing 209 is fixedly sleeved on the top of the rod jack column 206, and the outer ring of the bearing 209 is fixedly connected to the double-fork lifting support 202.

[0052] Please refer to Figure 1 , Figure 7 , Figure 11 and Figure 12 ,like Figure 1 , Figure 7 , Figure 11 and Figure 12 As shown, the double-forked stop bar 203 includes two stop bars 210 arranged opposite to each other, and a second slot 211 is formed between the two stop bars 210. The second slot 211 is used to engage with the connecting bolt 303.

[0053] Therefore, by engaging the second slot 211 of the double-forked stop bar 203 with the connecting bolt 303 of the lower clamp 302 of the photovoltaic bracket 3, the top of the pointed bottom double-forked jack 2 can be fully limited.

[0054] Furthermore, the two stops 210 of the double-fork stop bar 203 are symmetrically fixed on both sides of the top of the double-fork lifting support 202 and inserted into the gap of the two lower clamp steel plates 304 of the lower clamp 302, and the connecting bolt 303 is engaged in the second slot 211, which can prevent the top of the pointed bottom double-fork jack 2 from becoming laterally unstable.

[0055] Preferably, the double-fork stop bar 203 is made of round steel (diameter of 12 mm to 16 mm, length of 80 mm to 100 mm, and double-fork opening width of 50 mm to 80 mm) and is symmetrically welded to the top two sides of the double-fork lifting support 202.

[0056] Please refer to Figures 3 to 6 ,like Figures 3 to 6 As shown, the annular stiffening rib 103 is disposed near the edge of the outer wall of the annular clamp steel plate 101. The annular clamp steel plate 101 includes an arched section 104 and connecting sections 105 disposed on both sides of the arched section 104. The annular stiffening rib 103 includes a first stiffening rib 106 and a second stiffening rib 107 symmetrically disposed, with a gap 108 between the first stiffening rib 106 and the second stiffening rib 107.

[0057] Therefore, by setting the annular stiffening rib 103, the stiffness of the annular clamp steel plate 101 can be increased, preventing the annular clamp steel plate 101 from buckling and deforming locally when subjected to load. In addition, the first stiffening rib 106 and the second stiffening rib 107 are discontinuously set, which facilitates installation, alignment and welding construction, and releases residual stress. This strengthens the key parts while taking into account the convenience of the process.

[0058] Preferably, two annular stiffening ribs 103 are arranged parallel to each other along the width direction of the annular clamp steel plate 101; the connecting section 105 of the annular clamp steel plate 101 is provided with bolt mounting holes 114 for fixing bolts to pass through; the annular clamp steel plate 101 is made of Q235 or higher grade steel plate (thickness 8 mm to 12 mm, width 80 mm to 150 mm), the inner diameter of the annular clamp steel plate 101 matches the outer diameter of the foundation column 301 of the photovoltaic bracket 3 (suitable for φ200 mm to φ500 mm circular columns), and can tightly fit the outer wall of the foundation column 301 to provide basic support for the overall structure; the annular stiffening ribs 103 are made of Q235 or higher grade steel plate (thickness 6 mm to 8 mm, width 30 mm). The steel plate 101 is welded to the outer side of the ring clamp steel plate (up to 60mm) and the middle part is discontinuously set to form a reinforced structure, which can increase the bending stiffness of the ring clamp steel plate 101 by more than 50%, avoid the clamp from deforming under stress, and ensure the clamping force is stable.

[0059] Please refer to Figure 5 ,like Figure 5 As shown, the fixing clamp 1 also includes two limiting baffles 109 arranged opposite to each other, and the two limiting baffles 109 are connected to the annular clamp steel plate 101 used to fix the bolt head 110 of the fastening bolt 102.

[0060] Therefore, the bolt head 110 of the fastening bolt 102, in conjunction with the limiting baffle 109, can be tightened without the need for a wrench. A single person can complete the entire process of fixing, lifting, and unloading the device. The leveling of a single photovoltaic bracket 3 can be completed efficiently in a short time, thus making the operation efficiency of the photovoltaic bracket leveling device provided by this invention high.

[0061] Furthermore, the bolt head 110 of the fastening bolt 102 is a square bolt head, and the gap between the two limiting baffles 109 is adapted to the size of the square bolt head of the fastening bolt 102, which is used to restrict the rotation of the square bolt head when tightening the fastening bolt 102; a steel washer 113 is sleeved on the screw 111 of the fastening bolt 102, and the steel washer 113 is located between the outer hexagonal nut 112 of the fastening bolt 102 and the annular clamp steel plate 101, which is used to enhance the tightening force of the fastening bolt 102.

[0062] Preferably, the fastening bolt 102 is an M16 to M20 high-strength bolt, with one end being a square bolt head (30 mm to 40 mm in side length) for easy clamping and positioning without additional tools, and the other end used in conjunction with the hexagonal nut 112; the steel washer 113 is made of Q235 or higher grade steel plate (12 mm to 20 mm thick, 40 mm to 60 mm in side length), which increases the contact area between the hexagonal nut 112 and the annular clamp steel plate 101, preventing the hexagonal nut 112 from crushing the steel plate when tightened, and at the same time increasing the tightening force of the fastening bolt 102; the limiting baffle 109 is made of Q235 or higher grade steel plate (5 mm to 10 mm thick, 20 mm in side length). The bolt head 110 (up to 40mm) is welded to the bolt mounting hole 114 of the annular clamp steel plate 101. The square bolt head 110 can be embedded between the two limit baffles 109. When tightening the fastening bolt 102, the bolt head 110 does not need to be fixed with a wrench. Only the external hexagonal nut 112 at the other end needs to be tightened. The operation can be completed by a single person, which greatly improves efficiency.

[0063] Based on the same inventive concept, this invention also provides a leveling method for the leveling device used in the photovoltaic support described above. Please refer to [reference needed]. Figure 13 ,like Figure 13 As shown, the leveling method includes: step S100, attaching the fixing clamp 1 around the outer wall of the foundation column 301 of the target photovoltaic bracket 3; step S200, installing the two pointed-bottom double-pronged jacks 2 on both sides of the fixing clamp 1, snapping the bottom lifting plate 201 onto the fastening bolt 102, pressing the double-pronged lifting support 202 against the bottom of the lower clamp 302, and snapping the double-pronged stop bar 203 onto the connecting bolt 303 of the lower clamp 302; step S300, loosening the connecting bolt 303 of the upper clamp 305 and the lower clamp 302 of the target photovoltaic bracket 3, so that the target photovoltaic bracket 3 can move along the foundation column 301. Axial movement of column 301; Step S400: Drive the double-forked lifting support 202 to lift the target photovoltaic bracket 3 through the lifting component 204. After the target photovoltaic bracket 3 is lifted to a preset height, measure the flatness of the inclined surface of its upper component; Step S500: Determine whether the flatness error between the flatness of the inclined surface of the upper component and the target flatness is less than or equal to a preset threshold. If not, return to step S400; if yes, execute step S600; S600: Tighten the connecting bolts 303 of the upper clamp 305 and the lower clamp 302 of the target photovoltaic bracket 3, and remove the pointed bottom double forked jack 2 and the fixed clamp 1 to complete the leveling of the target photovoltaic bracket 3.

[0064] Thus, a stable lifting structure is formed by the fixed clamp 1 and two symmetrically arranged pointed-bottom double-forked jacks 2. The double-locking structure of the bottom lifting plate 201 and the fastening bolts 102 of the fixed clamp 1, and the double-forked stop bar 203 of the double-forked lifting support 202 and the connecting bolts 303 of the lower clamp 302 can achieve self-locking and anti-deviation, ensuring a smooth and safe lifting process. The entire process is seamless and the positioning is reliable. It can be completed by a single person, which significantly improves construction efficiency and leveling accuracy. Moreover, both the fixed clamp 1 and the pointed-bottom double-forked jacks 2 can be reused, reducing project costs.

[0065] Specifically, the leveling methods include:

[0066] (1) Fixing device reference: Two annular clamp steel plates 101 of the fixing clamp 1 are set around the base column 301 of the photovoltaic bracket 3, so that the limiting baffle 109 faces the leveling operation side. Insert the fastening bolt 102 into the annular clamp steel plate 101, and embed its square bolt head 110 between the two limiting baffles 109. Put the steel washer 113 on the other end of the fastening bolt 102 and screw in the external hexagonal nut 112. Tighten the fastening bolt 102 until the annular clamp steel plate 101 and the photovoltaic bracket are aligned. The foundation column 301 of the photovoltaic bracket 3 is tightly fitted. Then, the bottom lifting plates 201 of the two sets of pointed bottom double-forked jacks 2 are respectively inserted into the screws 111 of the fastening bolts 102 in the gaps of the two annular clamp steel plates 101 of the fixing clamp 1. The angle of the double-forked lifting support 202 is adjusted so that it is pressed against the bottom of the lower clamp 302 of the photovoltaic bracket 3, ensuring that the double-forked stop bar 203 is inserted between the two lower clamp steel plates 304 of the lower clamp 302 of the photovoltaic bracket 3 and is engaged with the connecting bolt 303.

[0067] (2) Release the bracket fixing constraint: Use a wrench to loosen the connecting bolts 303 (usually 4 to 6 M12 bolts) of the upper clamp 305 and lower clamp 302 of the photovoltaic bracket 3, so that the upper clamp 305 and lower clamp 302 of the photovoltaic bracket 3 can be freely adjusted in height along the axial direction of the foundation column 301 of the photovoltaic bracket 3, so as to avoid additional stress on the photovoltaic bracket 3 due to bolt constraint when leveling.

[0068] (3) Precise jacking and leveling: Manually press the hydraulic rod 207 of the jack, and the top column 206 of the drive rod jack will slowly extend, driving the double-fork support to lift the photovoltaic bracket 3; every 10mm of lifting, use a level (accuracy 0.02mm / m) to measure the flatness of the upper component slope of the photovoltaic bracket 3 until the flatness error is less than or equal to 0.2° (meeting the accuracy requirements for photovoltaic module installation), and stop jacking.

[0069] (4) Fix the bracket and remove the device: Keep the pointed bottom double fork jack 2 in the lifting state, tighten the connecting bolts 303 of the upper clamp 305 and lower clamp 302 of the photovoltaic bracket 3 with a wrench to ensure that the photovoltaic bracket 3 is fixed reliably; press the hydraulic rod 207 of the jack in the opposite direction to retract the rod jack column 206, take out the bottom lifting plate 201, loosen the outer hex nut 112 of the fastening bolt 102, and remove the fixing clamp 1; transfer the device to the next set of deformed photovoltaic brackets 3 and repeat the above steps.

[0070] Furthermore, the step of driving the double-forked lifting support 202 to lift the photovoltaic bracket 3 via the lifting assembly 204 includes: pressing the hydraulic rod 207 of the lifting assembly 204 to drive the rod jack column 206 of the lifting assembly 204 to extend along the axial direction of the rod jack cylinder 205 of the lifting assembly 204 to lift the target photovoltaic bracket 3.

[0071] Therefore, this setting enables the photovoltaic bracket 3 to be precisely raised and lowered along the axis of the foundation column 301, facilitating real-time monitoring and leveling to the preset threshold.

[0072] Based on the same inventive concept, the present invention also provides a photovoltaic bracket, wherein the photovoltaic bracket is leveled using the leveling method described above.

[0073] Therefore, the flatness error of the photovoltaic support 3 leveled by the leveling method provided by this invention can be strictly controlled within the preset threshold, and the leveling time is short, which can enable timely resumption of work and increase production capacity.

[0074] Compared with the prior art, the photovoltaic support structure, leveling device, and leveling method provided by the present invention have the following beneficial effects:

[0075] By connecting annular stiffening ribs 103 to the annular clamp steel plate 101, the rigidity of the annular clamp steel plate 101 is enhanced, effectively preventing deformation of the annular clamp steel plate 101 under stress and ensuring stable clamping force. In addition, by cooperating with the double-forked stop bar 203 of the pointed-bottom double-forked jack 2 and the lower clamp 302 of the photovoltaic bracket 3, lateral instability of the pointed-bottom double-forked jack 2 can be prevented. Furthermore, by engaging the bottom lifting plate 201 of the pointed-bottom double-forked jack 2 with the fastening bolt 102 of the fixed clamp 1, a stable reaction point is formed, completely solving the slippage problem of the existing photovoltaic bracket leveling device. There is no risk of equipment damage or personnel injury during the operation.

[0076] Furthermore, the bolt head 110 of the fastening bolt 102, in conjunction with the limiting baffle 109, can be tightened without the need for a wrench. A single person can complete the entire process of fixing, lifting, and unloading the device. The leveling of a single photovoltaic bracket can be completed efficiently in a short time, thus making the operation efficiency of the photovoltaic bracket leveling device provided by this invention high.

[0077] Furthermore, the double-pronged lifting support 202 is rotatably connected to the top of the pointed-bottom double-pronged jack 2, enabling 360° free rotation. It is compatible with the lower clamp 302 of different types of photovoltaic brackets 3, and can tighten the photovoltaic bracket 3 from multiple angles, solving the problem of poor adaptability of traditional jacks. At the same time, the double-pronged lifting support 202 can be finely adjusted during the lifting process (10mm per step) to ensure that the flatness error is less than or equal to 0.2°, ensuring that the photovoltaic bracket 3 is at a suitable tilt angle, which can solve the problem of insufficient leveling accuracy of existing photovoltaic bracket leveling devices.

[0078] Furthermore, the core components of the photovoltaic bracket leveling device provided by this invention are made of conventional steel and hydraulic components, which are easy to process, have low production costs, and can be reused (with a service life of more than or equal to 5 years), thus reducing the long-term maintenance costs of photovoltaic power plants.

[0079] The above description is only a description of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the present invention.

Claims

1. A leveling device for a photovoltaic support structure, characterized in that, include: The system includes a fixed clamp and two pointed-bottom double-pronged jacks. The fixed clamp is used to surround and fit against the outer wall of the foundation column of the photovoltaic support. The pointed-bottom double-pronged jacks are used to support the system between the fixed clamp and the lower clamp of the photovoltaic support. The fixing clamp includes two annular clamp steel plates that are detachably connected by fastening bolts. The two annular clamp steel plates can form an accommodating space that matches the outer diameter of the foundation column. The outer wall of the annular clamp steel plate is provided with annular stiffening ribs that extend circumferentially. The pointed-bottom double-forked jack includes a bottom lifting plate, a lifting assembly, a double-forked lifting support, and a double-forked stop bar. The bottom lifting plate is connected to the bottom of the lifting assembly, the double-forked lifting support is rotatably connected to the top of the lifting assembly, and the double-forked stop bar is connected to the top surface of the double-forked lifting support. The bottom lifting plate is used to engage with the fastening bolt to limit the lateral movement of the bottom of the pointed-bottom double-pronged jack. The lifting assembly is used to drive the double-pronged lifting support to lift the lower clamp of the photovoltaic bracket in order to level the photovoltaic bracket; The double-forked stop bar is used to engage with the connecting bolts of the lower clamp of the photovoltaic bracket to limit the lateral movement of the top of the pointed-bottom double-forked jack.

2. The leveling device for a photovoltaic bracket as described in claim 1, characterized in that, The lifting assembly includes a connected rod jack cylinder, a rod jack top column, and a jack hydraulic rod. The bottom of the rod jack cylinder is connected to the bottom lifting plate, and the top of the rod jack top column is rotatably connected to the double-forked lifting support. The jack hydraulic rod is used to drive the rod jack top column to extend and retract along the axial direction of the rod jack cylinder.

3. The leveling device for a photovoltaic bracket as described in claim 2, characterized in that, The bottom lifting plate is provided with a first slot at the end away from the rod jack cylinder, and the first slot is used to engage with the fastening bolt.

4. The leveling device for a photovoltaic bracket as described in claim 2, characterized in that, The top of the rod-type jack is fitted with a bearing, which is connected to the double-forked lifting support.

5. The leveling device for a photovoltaic bracket as described in claim 1, characterized in that, The double-forked stop bar includes two stop bars arranged opposite each other, and a second groove is formed between the two stop bars. The second groove is used to engage with the connecting bolt.

6. The leveling device for a photovoltaic bracket as described in claim 1, characterized in that, The annular stiffening rib is located near the edge of the outer wall of the annular clamp steel plate. The annular clamp steel plate includes an arched section and connecting sections on both sides of the arched section. The annular stiffening rib includes a first stiffening rib and a second stiffening rib arranged symmetrically, with a gap between the first stiffening rib and the second stiffening rib.

7. The leveling device for a photovoltaic bracket as described in claim 1, characterized in that, The fixing clamp also includes two opposing limiting baffles, which are connected to the annular clamp steel plate used to fix the bolt head of the fastening bolt.

8. A leveling method for a leveling device used in any one of claims 1 to 7 of a photovoltaic support, characterized in that, The leveling method includes: The fixing clamp is wrapped around and attached to the outer wall of the base column of the target photovoltaic support; Install the two pointed-bottom double-forked jacks on both sides of the fixed clamp, snap the bottom lifting plate onto the fastening bolt, press the double-forked lifting support against the bottom of the lower clamp, and snap the double-forked stop bar onto the connecting bolt of the lower clamp. Loosen the connecting bolts of the upper and lower clamps of the target photovoltaic bracket so that the target photovoltaic bracket can move along the axial direction of the foundation column; The target photovoltaic bracket is lifted by driving the double-forked lifting support through the lifting component. After the target photovoltaic bracket is lifted to a preset height, the flatness of the upper component slope is measured, and it is determined whether the flatness error between the flatness of the upper component slope and the target flatness is less than or equal to a preset threshold. If not, the target photovoltaic bracket is lifted to the preset height until the flatness error is less than or equal to the preset threshold. Tighten the connecting bolts of the upper and lower clamps of the target photovoltaic bracket, and remove the pointed-bottom double-pronged jack and the fixing clamp to complete the leveling of the target photovoltaic bracket.

9. The leveling method as described in claim 8, characterized in that, The method of driving the double-pronged lifting support to lift the photovoltaic bracket via the lifting assembly includes: Press the hydraulic rod of the lifting assembly to drive the rod jack column of the lifting assembly to extend along the axial direction of the rod jack cylinder of the lifting assembly to lift the target photovoltaic bracket.

10. A photovoltaic support structure, characterized in that, The photovoltaic support is leveled using the leveling method described in any one of claims 8 to 9.

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