A photovoltaic array structure based on mine repair

Abstract

The application discloses a photovoltaic array structure based on mine repair, relates to the technical field of photovoltaic module support structures, and comprises a plurality of array-arranged photovoltaic modules and support structures, wherein each support structure comprises an inclined purlin connected with a photovoltaic module, a crossbeam connected with the inclined purlin, and a plurality of leg assemblies connected with the crossbeam; each leg assembly comprises a screw pile, a stand connected with the crossbeam, and a lifting mechanism connected between the screw pile and the stand; and the support structure further comprises a self-adaptive composite hinged sliding mechanism connected between the crossbeam and the stand. The photovoltaic array structure based on mine repair releases settlement stress and realizes construction locking through the self-adaptive composite hinged sliding mechanism, adapts to complex mine topography through the lifting mechanism, and realizes ecological repair through a soil improvement module, so that the structure stability and power generation efficiency are ensured, and the synergistic development of new energy utilization and mine repair is achieved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic module support structure technology, specifically a photovoltaic array structure based on mine restoration. Background Technology

[0002] Against the backdrop of the coordinated development of new energy power plants and mine ecological restoration, photovoltaic arrays in mining areas, as a typical form of integrating new energy power generation with ecological governance, belong to the solar energy industry. Their structural stability and ecological adaptability directly affect the long-term operation and maintenance efficiency of power plants and the effectiveness of mine restoration. After mining, the foundation soil is loose and the geological conditions are uneven, making it prone to uneven settlement during long-term operation.

[0003] However, conventional photovoltaic support structures in new energy power plants mostly adopt rigid connection designs, lacking the adaptive capacity for angular deflection and horizontal sliding between columns and beams. Bending stress and tensile and compressive stress generated by foundation settlement are directly transmitted to the support nodes, easily causing beam cracking, column deformation, and even warping and damage to photovoltaic modules, seriously threatening the power generation safety and structural life of new energy power plants. Furthermore, traditional photovoltaic ground piles in new energy power plants only serve the function of anchoring and support, without being combined with the needs of mine ecological restoration. Mine areas have barren soil, poor water and fertilizer retention capacity, and low vegetation survival rate. Simply laying photovoltaics cannot achieve soil improvement and ecological restoration, making it difficult to meet the development goals of green operation and maintenance and synergistic efficiency of new energy power plants, thus affecting the effectiveness of mine restoration and photovoltaic power generation.

[0004] To address this, we propose a photovoltaic array structure based on mine restoration. Summary of the Invention

[0005] The purpose of this invention is to provide a photovoltaic array structure based on mine restoration to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic array structure based on mine restoration, comprising multiple arrayed photovoltaic modules and supporting structures. Each supporting structure includes inclined purlins connected to the photovoltaic modules, crossbeams connected to the inclined purlins, and multiple leg assemblies connected to the crossbeams. Each leg assembly includes a helical pile, a column connected to the crossbeams, and a lifting mechanism connecting the helical pile and the column. The supporting structure further includes an adaptive composite hinge sliding mechanism connecting the crossbeams and the column. The adaptive composite hinge sliding mechanism has both angle deflection capability and single-axis horizontal sliding capability, and is equipped with adjustable damping to maintain structural locking during construction and release stress under uneven settlement conditions. A soil improvement module is installed inside the helical pile to improve soil quality in the mining area, promote vegetation restoration, and achieve synergy between photovoltaic utilization and ecological restoration.

[0007] Preferably, the adaptive composite hinge sliding mechanism includes a slide rail fixedly connected to the bottom of the crossbeam, with stops fixedly connected to both ends of the slide rail. A slider is slidably connected to the side wall of the slide rail, and a ball joint assembly is connected between the slider and the column. The ball joint assembly includes a lower connecting seat fixedly connected to the top of the column, and a mounting seat fixedly connected to the top of the lower connecting seat. A universal ball is provided inside the mounting seat, and an upper connecting seat is fixedly connected between the universal ball and the slider. A first damping component is provided on the side wall of the lower connecting seat to provide frictional damping for the rotation of the universal ball, and a second damping component is provided on the side wall of the upper connecting seat to provide frictional damping for the sliding of the slider.

[0008] By adopting the above technical solution, the ball hinge assembly and the sliding assembly are integrated at the same node. The slide rail and the slider realize the slight horizontal displacement of the crossbeam along a single axis, and the universal ball realizes the small-angle deflection between the column and the crossbeam. At the same time, the rotational damping of the universal ball and the sliding damping of the slider are precisely adjusted by the first damping assembly and the sliding damping of the slider by the second damping assembly. The damping magnitude can be switched according to the needs of the construction and operation stages. This ensures that the structure does not experience unexpected displacement during construction and can effectively release bending and tensile stress during foundation settlement. It is suitable for complex geological environments in mines and ensures the long-term stable operation of the photovoltaic array of the new energy power plant.

[0009] Preferably, the first damping assembly includes a friction ring sleeved on the side wall of the universal ball, and two symmetrically arranged first fixing brackets are fixedly connected to the side wall of the lower connecting seat. A moving rod is inserted into the top of the first fixing bracket, and the lower end of the moving rod is fixed to the top of the friction ring. The movement of the moving rod is driven by the first pushing assembly. The second damping component includes a second fixing frame fixedly connected to the side wall of the upper connecting seat, and a friction block is connected to the side wall of the second fixing frame via a second pushing component, the friction block sliding on the side wall of the slider.

[0010] By adopting the above technical solution, the friction ring of the first damping component provides rotational friction damping for the universal ball, and the position of the moving rod is adjusted by the first pushing component to precisely control the rotational resistance of the universal ball; at the same time, the friction block of the second damping component provides sliding friction damping for the slider, and the clamping force between the friction block and the slider is adjusted by the second pushing component to achieve independent adjustment of rotational damping and sliding damping. This ensures structural stability and locking during the construction phase, and can slowly release stress during uneven settlement in the mine, thereby improving the structural reliability and service life of the photovoltaic array.

[0011] Preferably, the first pushing assembly includes a bracket fixedly connected to the top of the first fixed frame, and the top of the bracket is threadedly connected to a first bolt. The upper end of the moving rod is fixedly connected to a first spring telescopic rod, and the top of the first spring telescopic rod is rotatably connected to a first disc.

[0012] By adopting the above technical solution, the first bolt can be screwed in / out on the support, which can push the first disc to move up and down. Then, the first spring telescopic rod drives the moving rod to move up and down synchronously, thereby adjusting the positive pressure between the friction ring and the universal ball, and realizing stepless adjustment of rotational damping. At the same time, the first spring telescopic rod can provide elastic preload, which can not only buffer the instantaneous impact during construction or settlement, but also compensate for the wear of the friction surface, ensuring that the damping force is stable and reliable throughout the entire life cycle.

[0013] Preferably, the second pushing component includes a second bolt threadedly connected to the second fixed frame, a second spring telescopic rod fixedly connected to the bottom of the friction block, and a second disc rotatably connected to the bottom of the second spring telescopic rod.

[0014] By adopting the above technical solution, the second bolt can be screwed in / out on the thread of the second fixed frame, which can push the second disc to move up and down. In turn, the friction block is driven to rise and fall synchronously through the second spring telescopic rod, thereby adjusting the normal pressure between the friction block and the slider and realizing the adjustment of sliding damping. At the same time, the second spring telescopic rod can provide elastic preload, which can not only buffer the instantaneous impact during construction or settlement, but also compensate for the wear of the friction surface, ensuring that the damping force is stable and reliable throughout the entire life cycle.

[0015] Preferably, the lifting mechanism includes a sleeve fitted on the side wall of the column, and the lower end of the sleeve is detachably connected to the top of the helical pile through an installation component. The side wall of the column is provided with a plurality of arrayed adjustment holes, and a third bolt is inserted into the side wall of the sleeve. The third bolt is inserted into the adjustment hole, and a first nut is threadedly connected to the side wall of the third bolt.

[0016] By adopting the above technical solution, the column can slide up and down along the inner wall of the sleeve. By inserting the third bolt into the adjustment holes at different heights and locking it with the first nut, the height of the column can be adjusted in stages. This can quickly adapt to the undulations of the mining site and accurately control the horizontality of the beam and the tilt angle of the photovoltaic module installation. This reduces the difficulty of construction positioning and improves the power generation efficiency of the new energy power plant.

[0017] Preferably, the mounting assembly includes a first flange fixedly connected to the top of the helical pile, a second flange fixedly connected to the lower end of the sleeve, and the first flange and the second flange are detachably connected by a fourth bolt and a second nut.

[0018] By adopting the above technical solution, the first flange and the second flange are connected by the fourth bolt and the second nut to form a flange connection, so that the sleeve and the helical pile can be detached and rigidly connected. This not only ensures the load-bearing capacity and pull-out stability of the support structure under complex mining conditions, but also facilitates rapid on-site installation, disassembly and subsequent maintenance, and is suitable for the large-scale construction needs of photovoltaic arrays in new energy power plants.

[0019] Preferably, the soil improvement module includes an installation cavity within a spiral pile, and a storage cylinder is connected to the installation cavity via a reset component. The storage cylinder is filled with a slow-release carrier and mycorrhizal fungicide, and the side wall of the storage cylinder has multiple arrayed first through holes. The side wall of the spiral pile has multiple arrayed second through holes, and the second through holes can overlap with the first through holes. The movement of the storage cylinder is propelled by a third pushing component, and the second through holes are filled with water-permeable and air-permeable non-woven fabric.

[0020] By adopting the above technical solution, during the installation of the photovoltaic array, the third pushing component moves the storage cylinder within the installation cavity, aligning the first through hole with the second through hole. The mycorrhizal fungi and slow-release carrier in the storage cylinder are slowly released into the surrounding mine soil through the through holes. The non-woven fabric in the second through hole is permeable to water and air, while preventing soil particles from clogging the channels. The mycorrhizal fungi can improve the physical and chemical properties of the soil, promote vegetation establishment and growth, and the mycelial network can also enhance the cohesion of soil particles, improve the anti-sliding and anti-pull-out stability of the helical piles, and achieve the synergistic goal of mine ecological restoration and green operation and maintenance while ensuring the structural safety of the photovoltaic array of the new energy power plant.

[0021] Preferably, the reset assembly includes a fixing block detachably connected to the inner wall of the mounting cavity, and a rectangular rod is inserted into the top of the fixing block. The lower end of the rectangular rod is fixed to the top of the storage cylinder, and a third disc is fixedly connected to the upper end of the rectangular rod. A spring is sleeved on the side wall of the rectangular rod.

[0022] By adopting the above technical solution, when the thrust of the third pushing component on the third disk disappears, the elastic force of the spring pushes the third disk and the rectangular rod to move upward, causing the storage cylinder to reset synchronously, so that the first through hole and the second through hole are misaligned, cutting off the release channel of the mycorrhizal agent; the plug-in structure of the rectangular rod and the fixing block can restrict the circumferential rotation of the storage cylinder, ensuring that the through holes are always aligned or misaligned along a straight line, improving the control accuracy and reliability of the soil improvement module.

[0023] Preferably, the third pushing component includes a fixing plate detachably connected to the inner wall of the sleeve, and a connecting rod is fixedly connected to the bottom of the fixing plate. A fourth disk is fixedly connected to the lower end of the connecting rod, and the fourth disk can abut against the top of the third disk.

[0024] By adopting the above technical solution, when the column is inserted into the sleeve, the fixing plate fixed to the inner wall of the sleeve drives the connecting rod and the fourth disc to move down synchronously. The fourth disc contacts the third disc and applies a downward pushing force, overcoming the elastic force of the spring and pushing the storage cylinder down, so that the first through hole and the second through hole are precisely aligned, and the slow release channel of the mycorrhizal agent is automatically opened. This design links the installation action of the photovoltaic bracket with the start-up action of the soil improvement module, without the need for additional manual operation, realizing the synchronous triggering of photovoltaic array installation and mine ecological restoration, and greatly improving on-site construction efficiency and automation.

[0025] In summary: Advantage 1: The adaptive composite hinge sliding mechanism has both angle deflection and single-axis horizontal sliding capabilities, and the damping is adjustable. It keeps the structure locked during the construction phase and slowly releases stress under settlement conditions, effectively adapting to uneven settlement in mines and greatly improving the stability and service life of the photovoltaic array structure. Advantage 2: The outrigger assembly is equipped with a lifting mechanism, which can flexibly adjust the height of the column, quickly adapt to the complex terrain of the mine, accurately control the horizontality of the crossbeam and the installation tilt angle of the photovoltaic module, improve the power generation efficiency of the new energy power plant, and reduce the difficulty of construction positioning. Advantage 3: The spiral ground pile integrates a soil improvement module, which can automatically release mycorrhizal fungi during photovoltaic installation. This not only improves the quality of mine soil and promotes vegetation restoration, but also enhances the anchoring stability of the ground pile through the mycelial network, achieving synergistic effects between photovoltaic power generation and mine ecological restoration, which meets the green operation and maintenance needs of new energy power plants. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the usage state of the support structure in this invention; Figure 3 This is a schematic diagram showing the usage state of the support structure from another perspective in this invention; Figure 4 This is a schematic diagram showing the usage state of the adaptive composite hinge sliding mechanism in this invention; Figure 5 This is a schematic diagram of the support leg assembly in this invention; Figure 6 This is a partial cross-sectional view of the spiral pile and casing in this invention. Figure 7 This is a schematic diagram of the adaptive composite hinge sliding mechanism in this invention; Figure 8 This is a schematic diagram of the structure of the second damping component in this invention.

[0027] In the diagram: 1. Photovoltaic module; 201. Friction ring; 202. First fixed frame; 203. Moving rod; 301. Bracket; 302. First bolt; 303. First disc; 304. First spring telescopic rod; 401. Second fixed frame; 402. Friction block; 501. Second bolt; 502. Second disc; 503. Second spring telescopic rod; 601. Sleeve; 602. Adjustment hole; 603. Third bolt; 604. Nut; 701. First flange; 702. Second flange; 703. Fourth bolt; 801. Anchor. 802. Storage cylinder; 803. First through hole; 804. Second through hole; 901. Fixing block; 902. Rectangular rod; 903. Third disc; 904. Spring; 1001. Fixing plate; 1002. Connecting rod; 1003. Fourth disc; 1101. Helical ground stake; 1102. Column; 1103. Crossbeam; 1104. Inclined purlin; 1201. Mounting base; 1202. Universal ball; 1203. Upper connecting base; 1204. Lower connecting base; 1205. Stop block; 1206. Slide rail; 1207. Slider. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1

[0030] Please see Figures 1-8The diagram illustrates a photovoltaic array structure for mine restoration, comprising multiple arrayed photovoltaic modules 1 and supporting structures. The photovoltaic modules 1 are well-known in this field, and their structure and principles are not detailed here. Each supporting structure includes an inclined purlin 1104 connected to the photovoltaic modules 1, a crossbeam 1103 connected to the inclined purlin 1104, and multiple support leg assemblies connected to the crossbeam 1103. Each support leg assembly includes a helical ground pile 1101, a column 1102 connected to the crossbeam 1103, and a lifting mechanism connecting the helical ground pile 1101 and the column 1102. The supporting structure also includes a self-supporting mechanism connecting the crossbeam 1103 and the column 1102. The adaptive composite articulated sliding mechanism combines angular deflection capability with single-axis horizontal sliding capability, and is equipped with adjustable damping to maintain structural locking during construction and release stress under uneven settlement conditions. The helical pile 1101 is equipped with a soil improvement module to improve soil quality in the mining area, promote vegetation restoration, and achieve synergy between photovoltaic utilization and ecological restoration. The adaptive composite articulated sliding mechanism realizes settlement stress release and construction locking, adapts to the complex terrain of the mine in conjunction with the lifting mechanism, and uses the soil improvement module to achieve ecological restoration. While ensuring structural stability and power generation efficiency, it achieves the coordinated development of new energy utilization and mine restoration.

[0031] The adaptive composite articulated sliding mechanism includes a slide rail 1206 fixedly connected to the bottom of the crossbeam 1103, with stops 1205 fixedly connected to both ends of the slide rail 1206. A slider 1207 is slidably connected to the side wall of the slide rail 1206, and a ball joint assembly is connected between the slider 1207 and the column 1102. The ball joint assembly includes a lower connecting seat 1204 fixedly connected to the top of the column 1102, and a mounting seat 1201 fixedly connected to the top of the lower connecting seat 1204. A universal ball 1202 is disposed within the mounting seat 1201, and an upper connecting seat 1203 is fixedly connected between the universal ball 1202 and the slider 1207. A first damping component is disposed on the side wall of the lower connecting seat 1204 to provide frictional damping for the rotation of the universal ball 1202, and the upper connecting seat 1204... The side wall of 03 is equipped with a second damping component to provide frictional damping for the sliding of slider 1207. The ball joint component and the sliding component are integrated at the same node. The slide rail 1206 and slider 1207 are used to realize the slight horizontal displacement of crossbeam 1103 along a single axis. The universal ball 1202 realizes the small-angle deflection between column 1102 and crossbeam 1103. At the same time, the first damping component is used to adjust the rotational damping of universal ball 1202 and the second damping component is used to adjust the sliding damping of slider 1207. The damping size can be switched according to the needs of construction and operation stages. This ensures that the structure does not have unexpected displacement during construction and can effectively release bending and tensile stress during foundation settlement. It is suitable for complex geological environments in mines and ensures the long-term stable operation of photovoltaic arrays in new energy power plants.

[0032] The first damping assembly includes a friction ring 201 sleeved on the side wall of the universal ball 1202, and two symmetrically arranged first fixing brackets 202 are fixedly connected to the side wall of the lower connecting seat 1204. A moving rod 203 is inserted into the top of the first fixing bracket 202, and the lower end of the moving rod 203 is fixed to the top of the friction ring 201. The movement of the moving rod 203 is pushed by the first pushing assembly. The second damping component includes a second fixed frame 401 fixedly connected to the side wall of the upper connecting seat 1203, and a friction block 402 is connected to the side wall of the second fixed frame 401 through a second pushing component. The friction block 402 slides on the side wall of the slider 1207. The friction ring 201 of the first damping component provides rotational friction damping to the universal ball 1202. The position of the moving rod 203 is adjusted by the first pushing component to precisely control the rotational resistance of the universal ball 1202. At the same time, the friction block 402 of the second damping component provides sliding friction damping to the slider 1207. The clamping force between the friction block 402 and the slider 1207 is adjusted by the second pushing component to achieve independent adjustment of rotational damping and sliding damping. This ensures structural stability and locking during the construction phase and can slowly release stress during uneven settlement in the mine, thereby improving the structural reliability and service life of the photovoltaic array.

[0033] The first pushing component includes a bracket 301 fixedly connected to the top of the first fixed frame 202, and a first bolt 302 threadedly connected to the top of the bracket 301. A first spring telescopic rod 304 is fixedly connected to the upper end of the moving rod 203, and a first disc 303 is rotatably connected to the top of the first spring telescopic rod 304. The first bolt 302 screws in / out on the thread on the bracket 301, which can push the first disc 303 to move up and down. In turn, the first spring telescopic rod 304 drives the moving rod 203 to move up and down synchronously, thereby adjusting the positive pressure between the friction ring 201 and the universal ball 1202, and realizing stepless adjustment of rotational damping. At the same time, the first spring telescopic rod 304 can provide elastic preload, which can not only buffer the instantaneous impact during construction or settlement, but also compensate for the wear of the friction surface, ensuring that the damping force is stable and reliable throughout the entire life cycle.

[0034] The second pushing component includes a second bolt 501 threadedly connected to the second fixed frame 401. A second spring telescopic rod 503 is fixedly connected to the bottom of the friction block 402, and a second disc 502 is rotatably connected to the bottom of the second spring telescopic rod 503. The second bolt 501 can be screwed in / out on the thread of the second fixed frame 401 to push the second disc 502 to move up and down, thereby driving the friction block 402 to rise and fall synchronously through the second spring telescopic rod 503. This adjusts the positive pressure between the friction block 402 and the slider 1207, thereby adjusting the sliding damping. At the same time, the second spring telescopic rod 503 can provide elastic preload, which can buffer the instantaneous impact during construction or settlement, and compensate for the wear of the friction surface, ensuring that the damping force is stable and reliable throughout the entire life cycle.

[0035] The lifting mechanism includes a sleeve 601 fitted onto the side wall of the column 1102, and the lower end of the sleeve 601 is detachably connected to the top of the helical pile 1101 via an installation component. The side wall of the column 1102 has multiple arrayed adjustment holes 602, and a third bolt 603 is inserted into the side wall of the sleeve 601. The third bolt 603 is inserted into the adjustment hole 602, and a first nut 604 is threaded onto the side wall of the third bolt 603. The column 1102 can slide up and down along the inner wall of the sleeve 601. By inserting the third bolt 603 into the adjustment holes 602 at different heights and locking it with the first nut 604, the height of the column 1102 can be adjusted in stages. This allows for quick adaptation to the undulations of the mining site, precise control of the horizontality of the beam 1103 and the installation tilt angle of the photovoltaic module 1, reducing the difficulty of construction positioning and improving the power generation efficiency of the new energy power plant.

[0036] The installation components include a first flange 701 fixedly connected to the top of the helical pile 1101, and a second flange 702 fixedly connected to the lower end of the sleeve 601. The first flange 701 and the second flange 702 are detachably connected by a fourth bolt 703 and a second nut. The first flange 701 and the second flange 702 form a flange connection through the fourth bolt 703 and the second nut, so that the sleeve 601 and the helical pile 1101 can be detachably rigidly connected. This ensures the load-bearing capacity and pull-out stability of the support structure under complex mining conditions, and facilitates rapid on-site installation, disassembly and subsequent maintenance, thus meeting the large-scale construction needs of photovoltaic arrays in new energy power plants.

[0037] The soil improvement module includes an installation cavity 801 within a spiral pile 1101, and a storage cylinder 802 connected to the installation cavity 801 via a reset assembly. The top cover of the storage cylinder 802 is detachable for easy filling. The storage cylinder 802 is filled with a slow-release carrier and mycorrhizal fungicide. The side wall of the storage cylinder 802 has multiple arrayed first through holes 803, and the side wall of the spiral pile 1101 has multiple arrayed second through holes 804, which can overlap with the first through holes 803. The storage cylinder 802 is moved by a third pushing assembly, and the second through holes 804 are filled with a water-permeable and air-permeable non-woven fabric. During the installation of the photovoltaic array, the third pushing component moves the storage cylinder 802 within the installation cavity 801, aligning the first through hole 803 with the second through hole 804. The mycorrhizal fungi and slow-release carrier in the storage cylinder 802 are slowly released into the surrounding mine soil through the through holes. The non-woven fabric in the second through hole 804 is permeable to water and air, while preventing soil particles from clogging the channels. The mycorrhizal fungi can improve the physical and chemical properties of the soil, promote vegetation establishment and growth, and the mycelial network can also enhance the cohesion of soil particles, improve the anti-slip and anti-pull stability of the spiral ground pile 1101, and achieve the synergistic goal of mine ecological restoration and green operation and maintenance while ensuring the structural safety of the photovoltaic array of the new energy power plant.

[0038] The reset assembly includes a fixing block 901 detachably connected to the inner wall of the mounting cavity 801, and a rectangular rod 902 is inserted into the top of the fixing block 901. The lower end of the rectangular rod 902 is fixed to the top of the storage cylinder 802, and the upper end of the rectangular rod 902 is fixedly connected to a third disc 903. A spring 904 is sleeved on the side wall of the rectangular rod 902. When the pushing force of the third pushing assembly on the third disc 903 disappears, the elastic force of the spring 904 pushes the third disc 903 and the rectangular rod 902 to move upward, causing the storage cylinder 802 to reset synchronously, so that the first through hole 803 and the second through hole 804 are misaligned, cutting off the release channel of the mycorrhizal agent. The insertion structure of the rectangular rod 902 and the fixing block 901 can restrict the circumferential rotation of the storage cylinder 802, ensuring that the through holes are always aligned or misaligned along a straight line, improving the control accuracy and reliability of the soil improvement module.

[0039] The third pushing component includes a fixing plate 1001 detachably connected to the inner wall of the sleeve 601, and a connecting rod 1002 is fixedly connected to the bottom of the fixing plate 1001. A fourth disc 1003 is fixedly connected to the lower end of the connecting rod 1002, and the fourth disc 1003 can abut against the top of the third disc 903. When the column 1102 is inserted downward into the sleeve 601, the fixing plate 1001 fixed to the inner wall of the sleeve 601 drives the connecting rod 1002 and the fourth disc 1003 to move downward synchronously. The fourth disc 1003 contacts the third disc 903 and applies a downward pushing force, which overcomes the elastic force of the spring 904 and pushes the storage cylinder 802 downward, so that the first through hole 803 and the second through hole 804 are precisely aligned, and the slow release channel of the mycorrhizal agent is automatically opened. This design links the installation action of the photovoltaic bracket with the start-up action of the soil improvement module, without the need for additional manual operation, realizing the synchronous triggering of photovoltaic array installation and mine ecological restoration, and greatly improving on-site construction efficiency and automation.

[0040] Working Principle: During installation, the spiral pile 1101 is first screwed into the underground mine. Then, the sleeve 601 is installed and fixed to the top of the spiral pile 1101 using the installation mechanism. During installation, the second flange 702 is aligned with the first flange 701 and connected and fixed using the fourth bolt 703 and the second nut. During connection and fixing, the sleeve 601 moves closer to the spiral pile 1101. Simultaneously, the fourth disc 1003 moves downwards via the fixing plate 1001 and the connecting rod 1002, causing... The top of the fourth disc 1003 abuts against the top of the third disc 903, which can push the third disc 903 to move downward. At the same time, the rectangular rod 902 drives the storage cylinder 802 to move downward along the mounting cavity 801. The spring 904 is compressed, so that the first through hole 803 and the second through hole 804 are aligned. The mycorrhizal agent is slowly released through the first through hole 803 and the second through hole 804, forming a symbiotic relationship with the plant roots in the mine soil, improving soil fertility and vegetation survival rate. At the same time, the mycelial network can also enhance the cohesion of soil particles, indirectly improving the anti-slip stability of the spiral pile 1101.

[0041] Next, adjust the height of the upright 1102 and the crossbeam 1103 as needed. When adjusting, raise and lower the upright 1102 within the sleeve 601 to ensure that the two crossbeams 1103 are horizontal and set at different heights. When the height is adjusted to a suitable level, insert the third bolt 603 into the adjustment hole 602 and tighten it with the first nut 604.

[0042] Next, the inclined purlin 1104 is fixed to the crossbeam 1103, and the photovoltaic module 1 is fixed on the inclined purlin 1104. By selecting inclined purlins 1104 with different inclination angles, the inclination angle of the photovoltaic module 1 can be adjusted.

[0043] Before construction, the first bolt 302 is rotated using a torque wrench, causing its lower end to abut against the top of the first disc 303. This, in turn, causes the friction ring 201 to move downwards via the first spring telescopic rod 304 and the moving rod 203, bringing it against the side wall of the universal ball joint 1202. Simultaneously, the first spring telescopic rod 304 is gradually compressed, pressing the universal ball joint 1202 to create surface contact friction damping, increasing the damping force and maintaining the ball joint assembly in a high-damping state, thus preserving its rigidity during transport. To prevent deviation during construction, the second bolt 501 is rotated using a torque wrench, causing its upper end to abut against the bottom of the second disc 502. This, in turn, causes the friction block 402 to move upward via the second spring telescopic rod 503, bringing it against the bottom of the slide rail 1206. The second spring telescopic rod 503 is gradually compressed, increasing the frictional damping between the slider 1207 and the slide rail 1206, placing it in a high-damping state. This ensures that the crossbeam 1103 does not shift during transport and construction.

[0044] After construction is completed, the preload can be appropriately reduced by adjusting the first bolt 302 and the second bolt 501 to lower the damping threshold and make the mechanism more sensitive to slow settlement in the later stage.

[0045] After construction, when uneven settlement occurs in the mine foundation, a height difference and a horizontal displacement difference are generated between the columns 1102. When the settlement moment exceeds the damping threshold of the ball joint assembly, the universal ball 1202 slowly rotates at a small angle within the friction ring 201 and the mounting base 1201 to release bending stress. When the horizontal internal force exceeds the sliding damping threshold, the slider 1207 slides slightly back and forth along the slide rail 1206 to release tensile and compressive stress, eliminate the rigid constraint between the beam 1103 and the column 1102, and prevent the support structure or photovoltaic module 1 from being torn. The damping force is continuous, making the rotation and sliding process slow and controllable, avoiding violent shaking, and automatically maintaining a new equilibrium position after the settlement stabilizes.

[0046] If the friction surface wears, the preload can be automatically compensated by the action of the first spring telescopic rod 304 and the second spring telescopic rod 503, ensuring long-term stability of the damping.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic array structure based on mine restoration, comprising multiple arrayed photovoltaic modules (1) and a supporting structure, characterized in that, Each of the aforementioned support structures includes an inclined purlin (1104) connected to the photovoltaic module (1), a crossbeam (1103) connected to the inclined purlin (1104), and multiple leg assemblies connected to the crossbeam (1103); each of the aforementioned leg assemblies includes a helical pile (1101), a column (1102) connected to the crossbeam (1103), and a lifting mechanism connecting the helical pile (1101) and the column (1102); the support structure also includes an adaptive composite hinge sliding mechanism connecting the crossbeam (1103) and the column (1102); the adaptive composite hinge sliding mechanism has both angle deflection capability and single-axis horizontal sliding capability, and is equipped with adjustable damping, which is used to keep the structure locked during the construction stage and release stress under uneven settlement conditions; the helical pile (1101) is equipped with a soil improvement module, which is used to improve the soil quality in the mining area, promote vegetation restoration, and realize the synergy between photovoltaic utilization and mine ecological restoration.

2. The photovoltaic array structure based on mine restoration according to claim 1, characterized in that: The adaptive composite hinge sliding mechanism includes a slide rail (1206) fixedly connected to the bottom of the crossbeam (1103), and stops (1205) fixedly connected to both ends of the slide rail (1206). A slider (1207) is slidably connected to the side wall of the slide rail (1206), and a ball joint assembly is connected between the slider (1207) and the column (1102). The ball joint assembly includes a lower connecting seat (1204) fixedly connected to the top of the column (1102), and the top of the lower connecting seat (1204) is... A mounting base (1201) is fixedly connected to the part, and a universal ball (1202) is provided inside the mounting base (1201). An upper connecting base (1203) is fixedly connected between the universal ball (1202) and the slider (1207). The side wall of the lower connecting base (1204) is provided with a first damping component for providing frictional damping for the rotation of the universal ball (1202), and the side wall of the upper connecting base (1203) is provided with a second damping component for providing frictional damping for the sliding of the slider (1207).

3. A photovoltaic array structure based on mine restoration according to claim 2, characterized in that: The first damping assembly includes a friction ring (201) sleeved on the side wall of the universal ball (1202), and two symmetrically arranged first fixing frames (202) are fixedly connected to the side wall of the lower connecting seat (1204). A moving rod (203) is inserted into the top of the first fixing frame (202), and the lower end of the moving rod (203) is fixed to the top of the friction ring (201). The movement of the moving rod (203) is driven by the first pushing assembly. The second damping assembly includes a second fixing frame (401) fixedly connected to the side wall of the upper connecting seat (1203), and the side wall of the second fixing frame (401) is connected to a friction block (402) via a second pushing assembly, the friction block (402) sliding on the side wall of the slider (1207).

4. A photovoltaic array structure based on mine restoration according to claim 3, characterized in that: The first pushing component includes a bracket (301) fixedly connected to the top of the first fixed frame (202), and the top of the bracket (301) is threaded with a first bolt (302). The upper end of the moving rod (203) is fixedly connected with a first spring telescopic rod (304), and the top of the first spring telescopic rod (304) is rotatably connected with a first disc (303).

5. A photovoltaic array structure based on mine restoration according to claim 3, characterized in that: The second pushing assembly includes a second bolt (501) threadedly connected to the second fixed frame (401), a second spring telescopic rod (503) fixedly connected to the bottom of the friction block (402), and a second disc (502) rotatably connected to the bottom of the second spring telescopic rod (503).

6. A photovoltaic array structure based on mine restoration according to claim 1, characterized in that: The lifting mechanism includes a sleeve (601) fitted on the side wall of the column (1102), and the lower end of the sleeve (601) is detachably connected to the top of the helical pile (1101) through an installation assembly. The side wall of the column (1102) is provided with a plurality of arrayed adjustment holes (602), and a third bolt (603) is inserted into the side wall of the sleeve (601). The third bolt (603) is inserted into the adjustment hole (602), and a first nut (604) is threadedly connected to the side wall of the third bolt (603).

7. A photovoltaic array structure based on mine restoration according to claim 6, characterized in that: The installation assembly includes a first flange (701) fixedly connected to the top of the helical pile (1101), a second flange (702) fixedly connected to the lower end of the sleeve (601), and the first flange (701) and the second flange (702) are detachably connected by a fourth bolt (703) and a second nut.

8. A photovoltaic array structure based on mine restoration according to claim 1, characterized in that: The soil improvement module includes an installation cavity (801) opened in a spiral pile (1101), and a storage cylinder (802) is connected to the installation cavity (801) through a reset component. The storage cylinder (802) is filled with a slow-release carrier and mycorrhizal fungicide. The side wall of the storage cylinder (802) is provided with a plurality of arrayed first through holes (803). The side wall of the spiral pile (1101) is provided with a plurality of arrayed second through holes (804). The second through holes (804) can coincide with the first through holes (803). The movement of the storage cylinder (802) is driven by a third pushing component. The second through holes (804) are filled with water-permeable and air-permeable non-woven fabric.

9. A photovoltaic array structure based on mine restoration according to claim 8, characterized in that: The reset assembly includes a fixing block (901) detachably connected to the inner wall of the mounting cavity (801), and a rectangular rod (902) is inserted into the top of the fixing block (901). The lower end of the rectangular rod (902) is fixed to the top of the storage cylinder (802), and a third disc (903) is fixedly connected to the upper end of the rectangular rod (902). A spring (904) is sleeved on the side wall of the rectangular rod (902).

10. A photovoltaic array structure based on mine restoration according to claim 9, characterized in that: The third pushing component includes a fixing plate (1001) detachably connected to the inner wall of the sleeve (601), and a connecting rod (1002) is fixedly connected to the bottom of the fixing plate (1001). A fourth disc (1003) is fixedly connected to the lower end of the connecting rod (1002), and the fourth disc (1003) can abut against the top of the third disc (903).

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