A universal photovoltaic racking connection base

Abstract

The application discloses a universal photovoltaic support connecting base, which comprises a bearing flange, a center hole is arranged in the center of the bearing flange, four groups of small counterbores are arranged in a circular array with the center hole as the center at the position outside the center hole, each group of small counterbores is composed of two radially arranged small counterbores, a large counterbore is arranged between two adjacent groups of small counterbores, and a connecting hole is arranged between two adjacent large counterbores; a waterproof flange is arranged at the top of the bearing flange, the area of the waterproof flange is larger than that of the bearing flange, a metal base is arranged in the center of the waterproof flange and is hot fused with the waterproof flange, the left and right sides of the metal base are provided with fixed holes which are communicated with each other, a threaded connecting hole is arranged in the center of the bottom, and the threaded connecting hole is correspondingly arranged above and below the center hole. The universal photovoltaic support connecting base can realize the connection between the photovoltaic support and roofs with different structures, has high universality, good stability, high safety factor, good use effect and is convenient for industry popularization and generalization.

Description

Technical Field

[0001] This invention relates to a photovoltaic support base, and more particularly to a universal photovoltaic support connection base. Background Technology

[0002] With increasingly stringent national environmental policies and a worsening energy crisis, photovoltaic (PV) power generation is experiencing explosive growth. To make more rational use of existing resources, most PV power plants are currently installed on building rooftops. Existing roof structures are diverse, with single-story roofs and concrete roofs being suitable for large-scale distributed PV power plant construction. (See attached manual.) Figure 9 and 10 As shown, the existing single-layer roof mainly consists of a polymer waterproof membrane layer 51, an insulation layer 52, an air barrier layer 53, and a profiled steel sheet 54, arranged from top to bottom. This type of roof structure can have a service life of over 25 years and is mainly used in the roofs of large industrial plants, data centers, airport terminals, and other buildings. See the attached instruction manual. Figure 11 As shown, existing concrete roofs mainly consist of a concrete layer 55, with an insulation layer 52 and a polymer waterproof membrane layer 51 laid sequentially from bottom to top. These roofs are primarily used in residential, commercial, and office buildings. The insulation layer 52 of the aforementioned single-layer roof and concrete roof is mainly composed of insulation materials such as rock wool or extruded polystyrene board, which is energy-saving and environmentally friendly. The photovoltaic support structure in the photovoltaic power station is connected and fixed to the roof via a safe and reliable base.

[0003] As the base for photovoltaic (PV) brackets and roof installation nodes, existing PV bracket bases come in various installation methods, such as direct perforation connection to profiled steel sheets, fixing connection with self-tapping screws, connection with rivet nuts on steel sheets, and direct hot-melt welding directly onto the polymer waterproof membrane layer without anchoring to the profiled steel sheet. These PV bracket bases mainly consist of pressure-bearing metal flanges and connecting seats fixedly connected to them. To increase product profits, existing bases make the pressure-bearing metal flanges and connecting seats at the installation nodes very thin and small, using coated thin metal flanges hot-melt welded to the waterproof membrane as the base support. The base metal parts are directly installed to the PV bracket without thermal bridging, which may lead to condensation between the connection structures. Under extreme weather conditions, this can easily cause displacement, roof tearing, and leakage. Over time, this poses significant safety hazards, and the diverse connection and installation types of existing PV bracket bases also result in poor versatility. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a universal photovoltaic bracket connection base that can be adapted to different roof structures and has a good fixing effect.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a universal photovoltaic support connection base, including a load-bearing flange that can be fixedly installed on the roof, wherein the center of the load-bearing flange is provided with a central hole that is vertically connected, and four groups of small countersunk holes are arranged in a circular array around the central hole on the outer side of the central hole, each group of small countersunk holes consisting of two radially arranged small countersunk holes, and a large countersunk hole is provided between two adjacent groups of small countersunk holes, and a connecting hole is provided between two adjacent large countersunk holes; a waterproof flange made of polymer waterproof membrane is provided on the top of the load-bearing flange, the area of ​​the waterproof flange being larger than the area of ​​the load-bearing flange, and a metal base that is thermally fused to the center of the waterproof flange is provided, wherein the left and right sides of the metal base are provided with interconnected fixing holes, and a threaded connection hole is provided at the center of the bottom, the threaded connection hole corresponding vertically to the central hole.

[0006] Furthermore, the bottom of the metal base is provided with bolt holes, the number and position of which correspond vertically to the number and position of multiple connecting holes on the same radial line on the bearing flange. The metal base is fixedly connected to the bearing flange by fastening screws passing through the corresponding bolt holes and connecting holes from bottom to top.

[0007] Furthermore, a vertically upward stud is welded into the center hole of the bearing flange, and the stud is threaded into the threaded connection hole at the bottom of the metal base on the waterproof flange.

[0008] Furthermore, an aircraft anchor is provided at the bottom of the central hole of the bearing flange, and the top of the aircraft anchor passes through the central hole and is threadedly connected to the threaded connection hole at the bottom of the metal base.

[0009] Furthermore, a heavy-duty orchid clamp is provided at the bottom of the center hole of the bearing flange, and the top of the heavy-duty orchid clamp passes through the center hole and is threadedly connected to the threaded connection hole at the bottom of the metal base.

[0010] Furthermore, the roof is a single-layer roof, and a steel nail sleeve is embedded in the large countersunk hole. Self-tapping steel nails for fixing the load-bearing flange to the roof are inserted through the steel nail sleeve.

[0011] Furthermore, the roof is a concrete roof, and a concrete self-tapping screw for fixing the load-bearing flange to the roof is inserted into the small countersunk hole.

[0012] Furthermore, the metal base is provided with mounting profiles for photovoltaic bracket installation or cable tray supports for cable tray installation; the bottom of the mounting profile is provided with a profile insertion interface that fits into the metal base, the top is provided with an assembly hole for fixing the photovoltaic bracket, and the side is provided with profile connection holes corresponding to the fixing holes on the metal base. The profile connection holes and the corresponding fixing holes are fixedly connected together by bolts; the bottom of the cable tray support is provided with a support insertion interface that fits into the metal base, the top is provided with a limiting groove for locking the cable tray, and the side is provided with support connection holes corresponding to the fixing holes on the metal base. The support connection holes and the corresponding fixing holes are fixedly connected together by bolts.

[0013] Furthermore, the fixing holes are circular holes, and there are multiple of them arranged side by side.

[0014] Furthermore, the fixing hole is an oblong hole, and there are two of them, arranged side by side.

[0015] Compared with existing technologies, the advantages of this invention are: this universal photovoltaic support connection base can connect photovoltaic supports to roofs of different structures, enabling rooted installation on roofs of various structures. It has strong versatility, greatly improves the fixing effect between the base and the roof, has good stability, effectively reduces the safety hazards of photovoltaic power stations under extreme weather conditions, avoids damage to the roof, displacement, tearing of the waterproof layer, and roof leakage, greatly improving the safety factor. Furthermore, the insulation design of the metal base and waterproof flange being thermally fused together effectively prevents condensation dripping from the exposed metal components on the metal base. It has good performance and is easy to promote and popularize in the industry. Attached image description:

[0016] Figure 1 and Figure 2 This is a schematic diagram of the disassembled structure of a universal photovoltaic support connection base according to the present invention;

[0017] Figure 3 This is a top view schematic diagram of the load-bearing flange structure in a universal photovoltaic support connection base according to the present invention;

[0018] Figure 4 This is a three-dimensional structural diagram of a load-bearing flange with studs in a universal photovoltaic support connection base according to the present invention;

[0019] Figure 5 This is a schematic diagram of the top structure of the waterproof flange in a universal photovoltaic support connection base according to the present invention;

[0020] Figure 6 This is a schematic diagram of the bottom structure of the waterproof flange in a universal photovoltaic bracket connection base according to the present invention;

[0021] Figure 7 This is a three-dimensional structural diagram of the mounting profile in a universal photovoltaic bracket connection base according to the present invention;

[0022] Figure 8 This is a three-dimensional structural diagram of a cable tray support component in a universal photovoltaic bracket connection base according to the present invention;

[0023] Figure 9 This is a schematic diagram of the top surface structure of a single-layer roof;

[0024] Figure 10 This is a schematic diagram of the bottom structure of a single-story roof;

[0025] Figure 11 This is a schematic diagram of a concrete roof structure;

[0026] Figure 12 This is a schematic diagram of the assembly process of a general photovoltaic bracket connection base according to Embodiment 1 of the present invention;

[0027] Figure 13 This is a schematic diagram of the assembly process of a second embodiment of a universal photovoltaic bracket connection base according to the present invention;

[0028] Figure 14 This is a schematic diagram of the assembly process of a third embodiment of a universal photovoltaic bracket connection base of the present invention;

[0029] Figure 15 This is a schematic diagram of the assembly process of Embodiment 4 of a universal photovoltaic bracket connection base of the present invention;

[0030] Figure 16 This is a schematic diagram of the assembly process of Embodiment 5 of a universal photovoltaic bracket connection base of the present invention;

[0031] Figure 17 This is a schematic diagram of the assembly process of a sixth embodiment of a universal photovoltaic bracket connection base of the present invention;

[0032] Figure 18 This is a three-dimensional structural diagram of a universal photovoltaic support connecting base and a photovoltaic power station after installation according to the present invention;

[0033] Figure 19 This is a top view schematic diagram of the universal photovoltaic bracket connection base and the photovoltaic power station after installation according to the present invention;

[0034] Figure 20 yes Figure 17 A schematic diagram of the front structure;

[0035] Figure 21 yes Figure 17 A schematic diagram of the side structure;

[0036] Figure 22 yes Figure 18 Enlarged view of the structure of C in the middle;

[0037] Figure 23 yes Figure 19 Enlarged view of the structure of D in the middle.

[0038] In the diagram: 1. Load-bearing flange; 11. Center hole; 12. Large countersunk hole; 13. Small countersunk hole; 14. Connection hole; 15. Stud; 2. Waterproof flange; 21. Metal base; 211. Fixing hole; 212. Threaded connection hole; 213. Threaded connection hole; 22. Fastening screw; 3. Mounting profile; 31. Profile insertion interface; 32. Profile connection hole; 33. Assembly hole; 4. Cable tray support; 41. Support insertion interface; 42. Support connection hole; 43. Limiting slot; 5. Roof; 51. Polymer waterproof membrane layer; 52. Insulation layer; 53. Air barrier layer; 54. Profiled steel sheet; 55. Concrete layer; 56. Mounting hole; 6. Aircraft anchor; 7. Heavy-duty orchid clip; 8. Self-tapping screw; 81. Screw sleeve; 9. Concrete self-tapping screw; 100. Photovoltaic bracket; 200. Cable tray; 300. Solar panel. Detailed implementation method:

[0039] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0040] Figure 1 and Figure 2 The diagram shows a general-purpose photovoltaic support connection base, including a load-bearing flange 1 that can be fixedly mounted on the roof 5. The load-bearing flange 1 is made of high-strength metal material through a forward and reverse tensioning process, resulting in high strength. Furthermore, the large area of ​​the load-bearing flange 1 increases the supporting surface area. Figure 3 As shown, the bearing flange 1 has a central hole 11 that connects vertically. Four sets of small countersunk holes are arranged in a circular array around the central hole 11 on the outer side of the central hole 11. Each set of small countersunk holes consists of two radially arranged small countersunk holes 13. A large countersunk hole 12 is provided between two adjacent sets of small countersunk holes. There are four large countersunk holes 12. Connecting holes 14 are provided between two adjacent large countersunk holes 12. The connecting holes 14 between the four large countersunk holes 12 are arranged in a cross shape. A waterproof flange 2 made of high-polymer waterproof membrane is provided on the top of the bearing flange 1. The waterproof flange 2 can be bonded to waterproof membranes of different brands, both domestic and international, with high strength through hot air welding. The area of ​​the waterproof flange 2 is larger than that of the bearing flange 1. A metal base 21 is thermally fused to the center of the waterproof flange 2. The thermally fused metal base 21 and waterproof flange 2 achieve a structural design where the metal base 21 is pre-embedded within the waterproof flange 2, allowing for insulated connection and installation with photovoltaic panels. Figure 5 and Figure 6As shown, the metal base 21 has interconnected fixing holes 211 on both the left and right sides, and a threaded connection hole 212 at the bottom center, with the threaded connection hole 212 corresponding vertically to the center hole 11. To accommodate the fixing of different mounting profiles 3 or cable tray supports 4, the fixing holes 211 are either round holes (multiple holes arranged side-by-side) or oblong holes (two holes arranged side-by-side). When the fixing holes 211 are designed as round holes, it facilitates precise assembly and connection of the fixing position; when the fixing holes 211 are designed as oblong holes, it facilitates fine-tuning of the installation position.

[0041] To facilitate the fixed connection between the metal base 21 and the bearing flange 1, and to make disassembly easier, such as... Figure 6 As shown, the bottom of the metal base 21 is provided with screw holes 213. The number and position of the screw holes 213 correspond vertically to the number and position of the multiple connecting holes 14 on the same radial line on the bearing flange 1. The metal base 21 is fixedly connected to the bearing flange 1 by fastening screws 22 passing through the corresponding screw holes 213 and connecting holes 14 from bottom to top. The connecting holes 14 with a cross-shaped structure can facilitate the horizontal or vertical installation of the metal base 21 on the bearing flange 1, and facilitate the adjustment of the angle.

[0042] To facilitate the fixed connection between the metal base 21 and the bearing flange 1, and to make disassembly easier, such as... Figure 4 As shown, a vertically upward stud 15 is welded into the center hole 11 of the bearing flange 1. The stud 15 is threadedly engaged with the threaded connection hole 212 at the bottom of the metal base 21 on the waterproof flange 2. The metal base 21 can be directly screwed onto the stud 15 at the center of the bearing flange 1 through the threaded connection hole 212 at the bottom, thus fixing the waterproof flange 2 to the bearing flange 1.

[0043] To facilitate the anchoring and installation of the base and the single-layer roof, an aircraft anchor 6 is provided at the bottom of the center hole 11 of the bearing flange 1, and the top of the aircraft anchor 6 passes through the center hole 11 and is threadedly connected to the threaded connection hole 212 at the bottom of the metal base 21; or a heavy-duty orchid clip 7 is provided at the bottom of the center hole 11 of the bearing flange 1, and the top of the heavy-duty orchid clip 7 passes through the center hole 11 and is threadedly connected to the threaded connection hole 212 at the bottom of the metal base 21; or a steel nail sleeve 81 is embedded in the large countersunk hole 12, and a self-tapping steel nail 8 for fixing the bearing flange 1 and the roof 5 is inserted in the steel nail sleeve 81.

[0044] To facilitate installation on the concrete roof, the roof 5 is a concrete roof, and a concrete self-tapping screw 9 for fixing the bearing flange 1 to the roof 5 is inserted in the small countersunk hole 13.

[0045] To facilitate the installation of photovoltaic brackets or cable trays, the metal base 21 is provided with mounting profiles 3 for installing the photovoltaic bracket 100 or cable tray supports 4 for installing the cable tray 200; such as Figure 7 As shown, the bottom of the mounting profile 3 is provided with a profile insertion interface 31 that fits vertically into the metal base 21, and the top is provided with an assembly hole 33 for fixing and connecting the photovoltaic bracket 100. One side is provided with a slot that is open outwards and connected front to back. The bottom of the assembly hole 33 is vertically connected to the slot, allowing for a thermal break design. Profile connecting holes 32, corresponding to the fixing holes 211 on the metal base 21, are provided on both sides of the profile insertion interface 31 on the mounting profile 3. The profile connecting holes 32 and the corresponding fixing holes 211 are fixedly connected together by bolts. Figure 7 As shown, the bottom of the cable tray support 4 is provided with a support insertion interface 41 that is inserted and matched with the metal base 21, the top is provided with a limiting slot 43 for locking the cable tray 200, and the side is provided with a support connection hole 42 that corresponds to the fixing hole 211 on the metal base 21. The support connection hole 42 and the corresponding fixing hole 211 are fixedly connected together by bolts.

[0046] Specifically, this universal photovoltaic bracket connection base can be fixed and installed on a single-layer roof using aircraft anchors, heavy-duty orchid clips, self-tapping screws, or sleeve screws; when installed on a concrete roof, it can be fixed and installed using concrete self-tapping screws. The specific implementation method is as follows:

[0047] Example 1

[0048] Aircraft anchor installation method: such as Figure 12As shown, the waterproof flange 2 and the load-bearing flange 1 are fixed together with fastening screws 22. The top of the screw on the aircraft anchor 6 passes through the center hole 11 of the load-bearing flange 1 and is screwed together with the threaded connection hole 212 at the bottom of the metal base 21. According to the spacing in the construction drawing, use a chalk line to mark the horizontal installation line B perpendicular to the single-layer roof medium-pressure steel plate 54. After finding the crest with a crest detector, mark the crest installation line A. The crest installation line A intersects the horizontal installation line B perpendicularly. Use a D40 insulation layer cutting tube to drill and cut the installation hole 56 at the intersection of the crest installation line A and the horizontal installation line B. The diameter of the installation hole 56 is 25mm. Clean the waterproof membrane in the hot air welding area with a cleaning agent. Connect the waterproof flange 2 and the load-bearing flange. 1. The bottom aircraft anchor 6 is inserted into the mounting hole 56. The wings of the aircraft anchor 6 are opened and lifted. The metal base 21 is rotated clockwise. The metal base 21 drives the nut on the screw on the aircraft anchor 6 to rise. When the nut rises, it lifts the wings upward until the wings are fastened to the bottom of the profiled steel plate 54. The upper sealing ring on the aircraft anchor 6 completely seals the mounting hole 56. Adjust the metal base 21 to make it parallel to the horizontal installation line B. Then, use a hot air welding gun to heat the bottom surface of the waterproof flange 2. Hold the silicone pressure roller to hot air weld and press the skirt of the waterproof flange 2 to the polymer waterproof membrane layer 51 of the roof 5 together. Finally, the mounting profile 3 or cable tray support 4 is fixed to the metal base 21 with bolts.

[0049] Example 2

[0050] Heavy-duty orchid clip installation method: such as Figure 13As shown, the waterproof flange 2 and the load-bearing flange 1 are fixed together with fastening screws 22. The top of the screw on the heavy-duty orchid clamp 7 is passed through the center hole 11 of the load-bearing flange 1 and screwed together with the threaded connection hole 212 at the bottom of the metal base 21. According to the spacing in the construction drawing, the horizontal installation line B perpendicular to the single-layer roof medium-pressure steel plate 54 is marked with a chalk line. After finding the crest with a crest detector, the crest installation line A is marked. The crest installation line A intersects the horizontal installation line B perpendicularly. The installation hole 56 is drilled at the intersection of the crest installation line A and the horizontal installation line B using a D40 insulation layer cutting tube. The diameter of the installation hole 56 is 25mm. The waterproof membrane in the hot air welding area is cleaned with a cleaning agent. The connection between the bottom of the waterproof flange 2 and the load-bearing flange 1 is then completed. The heavy-duty orchid clip 7 is inserted into the mounting hole 56. The flaps of the heavy-duty orchid clip 7 open and are lifted. The metal base 21 is rotated clockwise. The metal base 21 drives the nut on the screw on the heavy-duty orchid clip 7 to rise. When the nut rises, it lifts the flaps upward until the flaps are fastened to the bottom of the profiled steel plate 54. The upper sealing ring on the heavy-duty orchid clip 7 completely seals the mounting hole 56. The metal base 21 is adjusted to be parallel to the horizontal installation line B. Then, the bottom surface of the waterproof flange 2 is heated with a hot air welding gun. The skirt of the waterproof flange 2 is hot-air welded and pressed together with the polymer waterproof membrane layer 51 of the roof 5 by holding a silicone roller. Finally, the mounting profile 3 or cable tray support 4 is fixed to the metal base 21 with bolts.

[0051] Example 3

[0052] Self-tapping screw installation method: such as Figure 14 As shown, vertically upward studs 15 are welded into the center hole 11 of the bearing flange 1. Using a chalk line, horizontal installation lines B perpendicular to the single-layer roof profiled steel sheet 54 are marked according to the spacing shown in the construction drawings. After finding the crests using a crest detector, crest installation lines A are marked. Crest installation line A intersects horizontal installation line B perpendicularly. The bearing flange 1 is placed at the center of the intersection of crest installation line A and horizontal installation line B. The cross-shaped crest installation line A and horizontal installation line B are confirmed to be within the countersunk hole 13. Self-tapping screws 8 are then driven into the countersunk hole 13, corresponding to the crest installation. The bottoms of the self-tapping steel nails 8 of line A and horizontal installation line B are respectively fixed to the crest and bottom of the corrugated steel sheet 54. Then, the waterproof flange 2 is screwed onto the stud 15 through the threaded connection hole 212 at the bottom of the metal base 21. The metal base 21 is adjusted to be parallel to the horizontal installation line B. Then, the bottom surface of the waterproof flange 2 is heated with a hot air welding gun. The skirt of the waterproof flange 2 is hot air welded and pressed together with the polymer waterproof membrane layer 51 of the roof 5 by holding a silicone pressure roller. Finally, the mounting profile 3 or cable tray support 4 is fixed on the metal base 21 with bolts.

[0053] Example 4

[0054] Sleeve nail installation method: such as Figure 15 As shown, the sleeve nail consists of a self-tapping nail 8 and a nail sleeve 81 that can be fitted onto the outside of it; a vertically upward stud 15 is welded into the center hole 11 of the bearing flange 1; according to the spacing in the construction drawing, the horizontal installation line B perpendicular to the single-layer roof medium-pressure steel sheet 54 is marked with a chalk line; after finding the crest with a crest detector, the crest installation line A is marked; the crest installation line A intersects the horizontal installation line B perpendicularly; the bearing flange 1 is placed at the center of the intersection of the crest installation line A and the horizontal installation line B; the cross-shaped crest installation line A and the horizontal installation line B are confirmed to be within the large countersunk hole 12; the self-tapping nail 8 is fitted into the nail sleeve 81; and then the sleeve with the nail is driven into the large countersunk hole 12 corresponding to the crest installation line A. Self-tapping steel nails 81 are driven into the large countersunk holes 12 corresponding to the horizontal installation line B. The bottoms of the self-tapping steel nails 8 corresponding to the crest installation line A and the horizontal installation line B are fixed to the crest and bottom of the corrugated steel sheet 54, respectively. Then, the waterproof flange 2 is screwed onto the stud 15 through the threaded connection hole 212 at the bottom of the metal base 21. The metal base 21 is adjusted to be parallel to the horizontal installation line B. Then, the bottom surface of the waterproof flange 2 is heated with a hot air welding gun. The skirt of the waterproof flange 2 is hot air welded and pressed together with the polymer waterproof membrane layer 51 of the roof 5 by holding a silicone pressure roller. Finally, the mounting profile 3 or the cable tray support 4 is fixed on the metal base 21 with bolts.

[0055] Example 5

[0056] Concrete self-tapping screw installation method: such as Figure 16 As shown, weld vertically upward studs 15 into the center hole 11 of the bearing flange 1. Mark cross installation lines on the top of the roof 5 according to the spacing shown in the construction drawings using a chalk line. Place the bearing flange 1 at the center of the intersection of the cross installation lines. Confirm that the cross installation lines are within the countersunk hole 13. Then, pierce the polymer waterproof membrane layer 51 and insulation layer 52 on top of the concrete layer 55. Drill installation holes in the concrete layer 55 using an electric drill. Align the countersunk hole 13 on the bearing flange 1 with the installation holes vertically and insert concrete self-tapping screws 9 through the holes. Drive the small countersunk hole 13 into the mounting hole to fix the bearing flange 1 on the roof 5. Then screw the waterproof flange 2 onto the stud 15 through the threaded connection hole 212 at the bottom of the metal base 21. Adjust the metal base 21 to make it parallel to the horizontal installation line B. Then use a hot air welding gun to heat the bottom surface of the waterproof flange 2. Use a silicone roller to hot air weld and press the skirt of the waterproof flange 2 to the polymer waterproof membrane layer 51 of the roof 5 together. Finally, fix the mounting profile 3 or cable tray support 4 on the metal base 21 with bolts.

[0057] Example 6

[0058] Figure 17 The installation method of this general photovoltaic bracket connecting base and cable tray support 4 is shown. The support insertion interface 41 at the bottom of the cable tray support 4 is inserted into the outside of the metal base 21 on the waterproof flange 2. The support connection hole 42 on the cable tray support 4 corresponds to the fixing hole 211 on the side of the metal base 21. Then, the bolts are passed through the corresponding support connection hole 42 and fixing hole 211 and tightened with nuts. The waterproof flange 2 and the load-bearing flange 1 for installing the cable tray support 4 can be installed without rooting according to the installation needs. At the same time, different widths of cable tray support 4 can be selected according to the specific cable tray width. The width of the cable tray support is normally within 300mm.

[0059] like Figure 18-23 As shown, the photovoltaic power station consists of a photovoltaic support 100, a cable tray 200, and a solar panel 300. The photovoltaic support 100 and the cable tray 200 are fixed to the roof via a base connected to an installation profile 3 and a base connected to a cable tray support 4, respectively. The solar panel 300 is fixedly installed on the photovoltaic support 100, and the cable of the solar panel 300 is led through the cable tray 200.

[0060] This universal photovoltaic support connection base enables the connection of photovoltaic supports with roofs of different structures, allowing for stable installation on various roof types. Its versatility is high, significantly improving the fixation effect between the base and the roof, enhancing stability, and effectively reducing safety hazards of photovoltaic power stations under extreme weather conditions. It avoids damage to the roof, displacement or tearing of the waterproof layer, and roof leaks, greatly increasing the safety factor. Furthermore, the insulation design, with the metal base and waterproof flange fused together, effectively prevents condensation from dripping from exposed metal components on the base. Its excellent performance facilitates widespread adoption in the industry.

[0061] It should be emphasized that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A universal photovoltaic support connection base, characterized in that: The system includes a load-bearing flange (1) that can be fixedly installed on the roof (5). The load-bearing flange (1) has a central hole (11) that is vertically connected. Four sets of small countersunk holes are arranged in a circular array around the central hole (11) on the outer side of the central hole (11). Each set of small countersunk holes consists of two radially arranged small countersunk holes (13). A large countersunk hole (12) is provided between two adjacent sets of small countersunk holes. A connecting hole (14) is provided between two adjacent large countersunk holes (12). A waterproof flange (2) made of polymer waterproof membrane is provided on the top of the load-bearing flange (1). The waterproof method The area of ​​flange (2) is larger than that of bearing flange (1). A metal base (21) is thermally fused to the center of the waterproof flange (2). The metal base (21) has interconnected fixing holes (211) on both sides and a threaded connection hole (212) at the bottom center, which corresponds vertically to the center hole (11). The bottom of the metal base (21) has bolt holes (213), the number and position of which correspond vertically to the number and position of multiple connecting holes (14) on the bearing flange (1) along the same radial line. The base (21) is fixedly connected to the bearing flange (1) by fastening screws (22) passing through corresponding upper and lower screw holes (213) and connecting holes (14) from bottom to top; the metal base (21) is provided with an installation profile (3) for installing the photovoltaic bracket (100) or a cable tray support (4) for installing the cable tray (200); the bottom of the installation profile (3) is provided with a profile insertion interface (31) that is inserted and matched with the metal base (21) from top to bottom, the top is provided with an assembly hole (33) for fixing and connecting the photovoltaic bracket (100), and the side is provided with a fixing hole for fixing the metal base (21) to the upper and lower parts. The profile connecting holes (32) are corresponding to the fixed holes (211), and the profile connecting holes (32) and the corresponding fixed holes (211) are fixedly connected together by bolts; the bottom of the cable tray support (4) is provided with a support plug interface (41) that is inserted and matched with the metal base (21) from the top and bottom, and the top is provided with a limiting slot (43) for snapping the cable tray (200), and the side is provided with a support connecting hole (42) that is corresponding to the fixed holes (211) on the metal base (21), and the support connecting hole (42) and the corresponding fixed hole (211) are fixedly connected together by bolts.

2. The universal photovoltaic support connection base according to claim 1, characterized in that: A vertically upward stud (15) is welded into the center hole (11) of the bearing flange (1), and the stud (15) is threadedly engaged with the threaded connection hole (212) at the bottom of the metal base (21) on the waterproof flange (2).

3. The universal photovoltaic support connection base according to claim 1, characterized in that: An aircraft anchor (6) is provided at the bottom of the center hole (11) of the bearing flange (1), and the top of the aircraft anchor (6) passes through the center hole (11) and is threadedly connected to the threaded connection hole (212) at the bottom of the metal base (21).

4. The universal photovoltaic support connection base according to claim 1, characterized in that: The bottom of the center hole (11) of the bearing flange (1) is provided with a heavy-duty orchid clamp (7), and the top of the heavy-duty orchid clamp (7) passes through the center hole (11) and is threadedly connected to the threaded connection hole (212) at the bottom of the metal base (21).

5. A universal photovoltaic support connection base according to claim 1, characterized in that: The roof (5) is a single-layer roof. A steel nail sleeve (81) is embedded in the large countersunk hole (12). A self-tapping steel nail (8) for fixing the bearing flange (1) and the roof (5) is inserted in the steel nail sleeve (81).

6. The universal photovoltaic support connection base according to claim 1, characterized in that: The roof (5) is a concrete roof, and a concrete self-tapping screw (9) for fixing the bearing flange (1) to the roof (5) is inserted in the small countersunk hole (13).

7. A universal photovoltaic support connection base according to claim 1, characterized in that: The fixing hole (211) is a round hole, and there are multiple of them arranged side by side.

8. A universal photovoltaic support connection base according to claim 1, characterized in that: The fixing hole (211) is an oblong hole, and there are two of them, arranged side by side.

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