Fabricated building integrated photovoltaic large-span space structure system and method

Abstract

The invention discloses a fabricated building integrated photovoltaic large-span space structure system and method, solves the problem that a system capable of deeply fusing a large-span space structure and a photovoltaic system does not exist in the prior art, and has the beneficial effects that the system can be assembled, can be quickly produced and built, and can support a photovoltaic module in a large-span manner. According to the specific scheme, the fabricated building integrated photovoltaic large-span space structure system comprises a plurality of supporting structures, the supporting structures are detachably connected, each supporting structure comprises a plurality of supporting units, the supporting units can be detachably assembled to form the supporting structure, and each supporting unit supports a photovoltaic assembly; the supporting unit comprises a plurality of stress rod pieces, every two adjacent stress rod pieces in the supporting unit are connected through a supporting rod or welded through a middle connecting piece, each side edge of the connecting frame is supported through the stress rod pieces, the connecting frame is provided with at least three side edges, and the connecting frame is provided with a groove to support a photovoltaic module.

Description

Technical Field

[0001] The present invention relates to the field of buildings, and in particular to an assembled photovoltaic building integrated large-span spatial structure system and method. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Green and low-carbon development has become a global consensus and trend. As a clean and renewable energy technology, it has significant environmental advantages. However, the utilization rate of photovoltaics in buildings is still relatively low, especially the application of large-span space structures combined with photovoltaics is still relatively rare. The main reason is that the structural strength is limited, and as a roof structure, there are high requirements for the strength and seismic performance of the structure. Some solutions also combine large-span space structures with photovoltaic systems, but the strength of the connection nodes is poor and the photovoltaic structure is added later, which makes the entire structure have poor seismic performance when used as a top structure such as a gymnasium; and the existing technology simply combines space components without considering the sealing of the overall structure as a roof structure, resulting in water leakage on the top of large buildings in application; In addition, the existing brackets for supporting solar panels are all cut and welded on site, and are not prefabricated in advance. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an integrated large-span spatial structure system for assembled photovoltaic buildings, which has a reasonable structural setting and can be reasonably expanded according to the space to meet usage requirements.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions: An assembled photovoltaic building integrated large-span spatial structure system includes multiple support structures, each support structure is detachably connected, each support structure includes multiple support units, multiple support units are detachably assembled into a support structure, and each support unit supports a photovoltaic module respectively; The support unit includes multiple load-bearing rods, and two adjacent load-bearing rods in the support unit are connected by support rods or welded by a middle connecting piece. Each side of the connecting frame is supported by multiple load-bearing rods. The connecting frame has at least three sides. The connecting frame is provided with grooves to support photovoltaic modules. Wheel-column nodes are respectively provided at each corner of the support unit, and the ends of the load-bearing rods are connected to the wheel-column nodes. All the support units in the support structure can be connected to a central wheel-column node together. The outer ends of two adjacent load-bearing rods of two adjacent support units in the support structure are connected to the same wheel-column node. Multiple support structures are assembled into an integrated large-span spatial structure system through the wheel-column nodes.

[0006] In the above-mentioned assembled photovoltaic building integrated large-span spatial structure system, the connection frame includes three side edges, and the angle between adjacent two side edges is 60°, so that the support unit is arranged in an equilateral triangle; The support structure is a regular hexagonal structure; Structural adhesive is filled between two adjacent support units, which not only effectively enhances the strength of the entire structural system, but also ensures the sealing of the entire structural system when used as a roof structure.

[0007] In the assembled photovoltaic building integrated large-span spatial structural system as described above, the load-bearing rods are rectangular hollow tubes, and clamp-type connecting plates are provided at the ends of the rectangular hollow tubes. The clamp-type connecting plates are provided with open grooves for connection with the wheel-column nodes. A plurality of first bolt holes are provided along the height direction of the load-bearing rods for connection with the side edges of the connecting frame. The connecting frame is supported by three load-bearing rods, and the hollow load-bearing rods are beneficial to reducing the mass of the load-bearing rods.

[0008] In the above-mentioned assembled photovoltaic building integrated large-span spatial structure system, the load-bearing rod and the support rod are connected by a transition member, and a second bolt hole is provided in the thickness direction of the load-bearing rod to be connected with the transition member; The transition member is a U-shaped sleeve, which is inserted into the side of the load-bearing rod through its open side. The transition member is provided with two ear plates, and the two ear plates are respectively provided with a third bolt hole for connection with the support rod. The transition member is provided with a fourth bolt hole on the side of the ear plate for connection with the load-bearing rod.

[0009] In the large-span spatial structural system of an integrated assembled photovoltaic building as described above, the middle connecting member is an I-beam, the upper flange and the lower flange of the I-beam are both trapezoidal in shape, one side of the I-beam is welded to the load-bearing rod on one side, and the other side of the I-beam is welded to the load-bearing rod on the other side.

[0010] In the above-mentioned assembled photovoltaic building integrated large-span spatial structure system, the connecting frame is provided with a Y-shaped support frame, and each side of the Y-shaped support frame is connected to the middle of each side of the connecting frame to support the photovoltaic assembly; The ends of two adjacent sides of the connecting frame are not connected to avoid interference with the wheel column nodes arranged at each corner of the support unit, and each side is provided with a step so that the connecting frame forms the groove.

[0011] In the assembled photovoltaic building integrated large-span spatial structure system as described above, the photovoltaic components are provided with Y-shaped connecting members, and the Y-shaped connecting members can be connected to the Y-shaped support frame to realize the detachable installation of the photovoltaic components.

[0012] In the above-mentioned assembled photovoltaic building integrated large-span spatial structure system, the wheel-column node includes a hollow cylinder, a pair of connecting ear plates are arranged on the outer side of each side of the hollow cylinder, the connecting ear plates are arranged perpendicularly to the side of the hollow cylinder where they are located, the connecting ear plates can be inserted into the open grooves of the clip-type connecting plates, and the fasteners can connect the clip-type connecting plates to the connecting ear plates; The angle between two adjacent connecting ear plates on two adjacent side surfaces of the hollow cylinder is 60 degrees.

[0013] In the assembled photovoltaic building integrated large-span spatial structure system as described above, the center of the support structure is provided with the wheel-column node, sealing members are respectively provided on both sides of the wheel-column node, and a cover plate is provided in the center of the support structure, and the outer side surface of the cover plate cooperates with the inner side surface of the sealing member.

[0014] In a second aspect, the present invention further discloses an application of an assembled photovoltaic building integrated large-span spatial structure system, which is applied to the roof structure of a gymnasium, a swimming pool or a theater.

[0015] In a third aspect, the present invention further discloses an assembly method of an assembled photovoltaic building integrated large-span spatial structure system, comprising the following contents: Three load-bearing rods are assembled into a triangle shape, and two adjacent load-bearing rods are connected by support rods or by welding through middle connecting pieces; Place the load-bearing rods under each side of the connection frame, and connect the side to the corresponding load-bearing rods; Placing the photovoltaic module in the groove of the connection frame, and connecting the photovoltaic module to the connection frame; A wheel-column node is arranged at the end of the connection frame, and the end of the load-bearing rod is connected to the wheel-column node to form a support unit; A plurality of support units are assembled into a support structure, and all support units in the support structure can be connected to a central wheel-column node, and the outer ends of two adjacent load-bearing rods of two adjacent support units in the support structure are connected to the same wheel-column node; Multiple supporting structures are assembled into an integrated large-span spatial structure system through wheel-column nodes.

[0016] The beneficial effects of the present invention are as follows: 1) The structural system of the present invention includes multiple supporting structures, each of which includes multiple supporting units. The number of supporting structures can be expanded as needed to form a photovoltaic module with a larger area. The structural setting is reasonable. The supporting unit specifically supports the connecting frame through the load-bearing rods to ensure the structural strength of the supporting unit and the supporting structure. The load-bearing rods in the supporting unit are connected to the wheel-column node. The outer ends of the two adjacent load-bearing rods in two adjacent supporting units can be connected to the same wheel-column node. In this way, through the wheel-column node, the supporting units are assembled into the supporting structure, and the supporting structure is assembled into the entire structural system; the photovoltaic module of the overall structural system is connected to the supporting unit in advance, the supporting structure is connected to the wheel-column node, and multiple supporting units are connected to the same wheel-column node. The strength of the entire structural system is effectively enhanced through multiple wheel-column nodes, which is beneficial to improving the seismic performance of the structural system.

[0017] 2) The structure of the present invention uses common rectangular hollow tubes with high stable bearing capacity as the basic load-bearing rods, and positions the photovoltaic components through connecting frames to form an integrated triangular photovoltaic structure unit with "photovoltaic components + load-bearing rods" and each component performs its own function and works independently. The structural unit is both a load-bearing unit and a production unit. Combined with the double-ear plate wheel-column node, it can form a single-layer lattice shell structure of a triangular grid. The support unit and the photovoltaic components can be installed in advance, and multiple support structures can be assembled on site. There is no need to install photovoltaic components separately after the main structure is installed, which reduces the impact of construction on the environment. It has the advantages of industrialized, modular and rapid production and construction; and it can be reasonably expanded according to the construction area to meet different usage requirements.

[0018] 3) In the present invention, a sealant and a cover plate are arranged at the center of each supporting structure, and structural adhesive is arranged between two adjacent supporting units, which effectively ensures the sealing performance of the entire structural system when used as a roof structure and reduces the probability of water leakage.

[0019] 4) In the present invention, a groove is provided in the connecting frame for limiting the position of the photovoltaic module. The connecting frame can be connected to the load-bearing rod. Two adjacent load-bearing rods in the support unit can be connected through a support rod, or welded through a middle connector to ensure the structural strength of the support unit. When setting the support rod, the connection is specifically achieved through a transition member, and the structural setting is reasonable.

[0020] 5) In the present invention, the sides of the connecting frame are connected via a Y-shaped support frame, and the photovoltaic module is provided with a Y-shaped connecting member to connect with the Y-shaped support frame to ensure the connection of the photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0022] Figure 1 It is a front view of an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 of the present invention.

[0023] Figure 2 It is a bottom view of an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 of the present invention.

[0024] Figure 3 It is a front view of an assembled photovoltaic building integrated large-span spatial structure system disclosed in the second embodiment of the present invention.

[0025] Figure 4 It is a bottom view of an assembled photovoltaic building integrated large-span spatial structure system disclosed in the second embodiment of the present invention.

[0026] Figure 5 It is a schematic diagram of a load-bearing rod in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 or Example 2 of the present invention.

[0027] Figure 6 It is a schematic diagram of a transition component in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 of the present invention.

[0028] Figure 7 It is a schematic diagram of support rods in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 of the present invention.

[0029] Figure 8 It is a schematic diagram of an I-beam in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 2 of the present invention.

[0030] Fig. 9 It is a schematic diagram of a connection frame in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 or Example 2 of the present invention.

[0031] Fig.10 It is a schematic diagram of a photovoltaic module in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 or Example 2 of the present invention.

[0032] Fig.11 It is a schematic diagram of a wheel-column node in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 or Example 2 of the present invention.

[0033] Fig.12 It is a schematic diagram of a cover plate in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 or Example 2 of the present invention.

[0034] Fig.13 It is a schematic diagram of a seal in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 or Example 2 of the present invention.

[0035] Fig.14 It is a schematic diagram of the connection process between the load-bearing rods and the transition components in the large-span spatial structure system of an assembled photovoltaic building integration disclosed in the first embodiment of the present invention.

[0036] Fig.15 It is a schematic diagram of the connection between the load-bearing rods and the transition components in the large-span spatial structure system of an assembled photovoltaic building integration disclosed in the first embodiment of the present invention.

[0037] Fig.16 It is a schematic diagram of the connection process between a transition member and a support rod in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 of the present invention.

[0038] Fig.17 It is a schematic diagram of the connection between a transition component and a support rod in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 of the present invention.

[0039] Fig.18 It is a schematic diagram of the welding connection between the load-bearing rods and I-beams in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 2 of the present invention.

[0040] Fig.19 It is a schematic diagram of the process of installing a support frame on a load-bearing rod in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 of the present invention.

[0041] Fig. 20 It is a schematic diagram of a supporting frame installed on a load-bearing rod in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Embodiment 1 of the present invention.

[0042] Fig.21 It is a schematic diagram of the process of installing photovoltaic components on a supporting frame in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 of the present invention.

[0043] Fig. 22 It is a schematic diagram of a photovoltaic module installed on a supporting frame in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Embodiment 1 of the present invention.

[0044] Fig.23 It is a schematic diagram of the connection process between the end of a load-bearing rod and a wheel-column node in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 of the present invention.

[0045] Fig.24 It is a schematic diagram of the connection between the end of a load-bearing rod and a wheel-column node in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 of the present invention.

[0046] Fig.25 It is a schematic diagram of assembling a supporting structure of a plurality of supporting units in a prefabricated photovoltaic building integrated large-span spatial structure system disclosed in the first embodiment of the present invention.

[0047] Fig.26 It is a schematic diagram of the process of setting a seal and a cover plate at the center of a supporting structure in an assembled photovoltaic building integrated large-span spatial structure system disclosed in Example 1 of the present invention.

[0048] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0049] Wherein: Ⅰ. Load bearing rod, Ⅰ-1. Clamp-type connecting plate, Ⅰ-2. Second bolt hole, Ⅰ-3. First bolt hole, Ⅰ-4. Tenth bolt hole; Ⅱ. Transfer member, Ⅱ-1. First ear plate, Ⅱ-2. Fourth bolt hole, Ⅱ-3. Third bolt hole; Ⅲ. Support rod, Ⅲ-1. Fifth bolt hole; IV. I-beam, V. connecting frame, V-1. groove, V-2. sixth bolt hole, V-3. seventh bolt hole, V-4. Y-shaped support frame; Ⅵ. Photovoltaic module, Ⅵ-1. Eighth bolt hole, Ⅵ-2. Y-type connecting member; Ⅶ. Wheel-column node, Ⅶ-1. Stiffening rib, Ⅶ-2. Connecting ear plate, Ⅶ-3. Ninth bolt hole, Ⅶ-4. Hollow column; Ⅷ. Seal, Ⅸ. Cover plate; 1-1. First bolt, 1-2. First nut, 2-1. Second bolt, 2-2. Second nut, 3-1. Third bolt, 3-2. Third nut, 4-1. Fourth bolt, 4-2. Fourth nut, 5-1. Fifth bolt, 5-2. Fifth nut. DETAILED DESCRIPTION

[0050] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0051] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof; As introduced in the background technology, in order to solve the problems in the prior art, the present invention proposes an assembled photovoltaic building integrated large-span spatial structure system.

[0052] Embodiment 1 In a typical embodiment of the present invention, reference is made to Figure 1 , Figure 2 As shown, an assembled photovoltaic building integrated large-span spatial structure system includes multiple support structures, each support structure can be detachably connected, each support structure includes multiple support units, and the multiple support units can be detachably assembled into a support structure, and each support unit supports a photovoltaic module respectively; The support unit includes multiple load-bearing rods, and two adjacent load-bearing rods in the support unit are connected by support rods or welded by a middle connecting piece. Each side of the connecting frame is supported by multiple load-bearing rods. The connecting frame has at least three sides. The connecting frame is provided with grooves to support photovoltaic modules. Wheel-column nodes are respectively provided at each corner of the support unit, and the ends of the load-bearing rods are connected to the wheel-column nodes. All the support units in the support structure can be connected to a central wheel-column node together. The outer ends of two adjacent load-bearing rods of two adjacent support units in the support structure are connected to the same wheel-column node. Multiple support structures are assembled into an integrated large-span spatial structure system through the wheel-column nodes.

[0053] In this embodiment, the load-bearing rod member I is specifically a rectangular hollow tube, which is the main component of the integrated photovoltaic roof panel structure system. The width direction of the rectangular hollow tube is used to contact the connection frame. Figure 5 As shown, both ends of the load-bearing member Ⅰ are provided with a clamp-type connecting plate Ⅰ-1 matching with the node connecting ear plate, the cross-section of the clamp-type connecting plate Ⅰ-1 is rectangular, an open groove is provided on the side of the clamp-type connecting plate Ⅰ-1 away from the load-bearing member body, a tenth bolt hole Ⅰ-4 is provided at the clamp-type connecting plate Ⅰ-1, the thickness of the clamp-type connecting plate Ⅰ-1 is less than the thickness of the load-bearing member 1 body, the clamp-type connecting plate is used to connect with the connecting ear plate on the wheel column node Ⅶ, a plurality of equally spaced first bolt holes Ⅰ-3 are provided on the top and bottom surfaces of the rectangular hollow tube for connecting the light connecting frame Ⅴ, a second bolt hole Ⅰ-2 is provided at the center of the side for connecting the U-shaped sleeve (if the rectangular hollow tubes are connected by welding to form a triangular frame, no bolt hole is required at the center of the side).

[0054] refer to Figure 6 As shown, the transition component II specifically adopts a U-shaped sleeve, and the transition component specifically includes two side plates, and the two side plates are connected by a connecting plate so that the cross-section of the U-shaped sleeve is U-shaped, and two first ear plates II-1 are provided on one side of the U-shaped sleeve, and the two first ear plates are parallel to each other and perpendicular to the side of the U-shaped sleeve, and each first ear plate is provided with a group of third bolt holes II-3 for connecting and fixing the U-shaped sleeve and the support rod; the U-shaped sleeve is provided with two fourth bolt holes II-2 on the sides of the two first ear plates for connecting and fixing the rectangular hollow tube.

[0055] refer to Figure 7 As shown, the support rod III is rectangular and strip-shaped, with second ear plates at both ends. A fifth bolt hole III-1 is provided at the second ear plate for connection with the first ear plate II-1 of the U-shaped sleeve, so that the connecting bolt passes through the first ear plate and the second ear plate.

[0056] refer to Fig. 9 As shown, the shape of the connecting frame V is similar to a triangle, specifically, close to an equilateral triangle. The connecting frame V includes three sides, which are respectively located on the three sides of the triangle, and the adjacent two sides are not connected. Each side of the connecting frame is provided with a plurality of sixth bolt holes V-2 for connecting to the corresponding load-bearing rods I. The width of the side of the connecting frame is greater than the width of the load-bearing rods, and a step is provided on the upper surface of each side of the connecting frame so that the connecting frame is provided with a groove V-1, through which the photovoltaic module VI is placed. The Y-type support frame V-4 has three sides, each side of the Y-type support frame is respectively connected to the corresponding side, and the photovoltaic module is supported and fixed by the Y-type support frame V-4. Each side of the Y-type support frame is drilled with a plurality of seventh bolt holes V-3 for connection with the photovoltaic module.

[0057] In order to match the shape of the connection frame, the photovoltaic component specifically selects a triangular photovoltaic component, and each corner of the photovoltaic component is set to a plane. It can be understood that the column structure of the photovoltaic component is an existing solar cell panel.

[0058] refer to Fig.10 As shown, a Y-shaped connecting member VI-2 is provided in the middle of the photovoltaic assembly VI, and the Y-shaped connecting member VI-2 is provided with a plurality of eighth bolt holes VI-1 for connecting with the Y-shaped supporting frame V-4 of the connecting frame V.

[0059] In other examples, a first magnet is provided on the Y-shaped connecting member of the photovoltaic module, and a second magnet is provided on the Y-shaped supporting frame of the connecting frame. The first magnet and the second magnet can be attracted to each other to achieve fixation of the two.

[0060] refer to Fig.11As shown, the wheel-column node VII is specifically a double-ear plate type wheel-column node, and the wheel-column node VII includes a hollow column, specifically a regular hexagonal hollow column VII-4, and a stiffening rib VII-1 is arranged inside the hollow column, and the stiffening rib is arranged in multiple places along the radial direction of the hollow column, and a pair of connecting ear plates VII-2 is arranged on the outer side of each side of the hollow column, and the connecting ear plates are arranged perpendicularly to the sides of the hollow column where they are located, and each connecting ear plate is provided with a plurality of ninth bolt holes VII-3 for connecting with the clamp-type connecting plate I-1, and a regular hexagonal hollow column is arranged with a total of 6 pairs of connecting ear plates, and each pair of connecting ear plates is arranged parallel to each other, and the spacing angle between two adjacent connecting ear plates on adjacent two sides of the hollow column is 60°, and the size of the connecting ear plate is compatible with the size of the opening groove of the clamp-type connecting plate.

[0061] After the connection frame is connected with three load-bearing rods, a support unit is formed. The support unit supports the photovoltaic module. Multiple support units can be assembled into a regular hexagonal support structure. Multiple support structures can be assembled into a large-span spatial structure system. A cover plate IX is set at the center of each support structure. Fig.12 As shown, the cover plate is a regular hexagon, and a sealing member VIII is provided between the cover plate and the supporting structure. The sealing member is a rubber sealing member, as shown in FIG. Fig.13 As shown, the outer circle radius of the seal is the same as the radius of the middle gap of the formed support structure, and the inner circle radius of the seal is the same as the outer circle radius of the cover plate.

[0062] This embodiment also discloses an installation method of the integrated photovoltaic roof panel support system, including the following contents: First, place the U-shaped sleeve under the rectangular hollow tube through Fig.14 Step ①: Cover the rectangular hollow tube, and then align the two fourth bolt holes II-2 on the U-shaped sleeve with the two second bolt holes I-2 on the side of the rectangular hollow tube. Fig.11 In step ② shown in the figure, insert the two first bolts 1-1 from one side of the bolt hole, pass through the other side and then fix them with the first nuts 1-2. Fig.15 As shown; In order to fix the three rectangular hollow tubes and form a triangular frame structure, the U-shaped sleeve and support rod III are used to fix the three rectangular hollow tubes to form a stable triangular frame. The connection method is: Fig.16 Step ③ shown in the figure aligns the fifth bolt hole III-1 on each end ear plate of the support rod III with the third bolt hole II-3 on the ear plate of the U-shaped sleeve, and then Fig.16 In step ④ shown in the figure, the second bolt 2-1 is inserted from one side of the corresponding bolt hole, and then passed through the other side and fixed with the second nut 2-2; Fig.17As shown, after the connection is completed, the angle between the two support rods on each U-shaped sleeve ear plate is 60°, and the three support rods form a stable equilateral triangle structure, which can provide stable support for the triangular frame structure.

[0063] refer to Fig.19 As shown, through step ⑤, each sixth bolt hole V-2 on each side of the connecting frame V is aligned with each first bolt hole I-3 on the upper surface of each rectangular hollow tube, and the connecting frame VI is placed on the upper surface of the rectangular hollow tube, and then through Fig.19 Step ⑥ shown in the figure is to insert the third bolt 3-1 corresponding to each bolt hole from one side of the corresponding bolt hole, pass through the other side and then fix it with the third nut 3-2. After the connection is completed, Fig. 20 The support unit in .

[0064] refer to Fig.21 As shown, through step ⑦, adjust the position of the triangular photovoltaic module and put it into the groove of the connecting frame V, and align the eighth bolt hole VI-1 of the Y-shaped connecting member VI-2 of the triangular photovoltaic module with the seventh bolt hole V-3 of the connecting frame Y-shaped support frame V-4, and then through step ⑧, insert the fourth bolt 4-1 from one side of the corresponding bolt hole, pass it out from the other side and fix it with the fourth nut 4-2, so that the connecting frame can be connected and fixed, refer to Fig. 22 As shown, a triangular unit is obtained by connecting the photovoltaic module, the light connection frame and the rectangular hollow tube.

[0065] Align the rectangular hollow tube clamp-type connecting plate with the connecting ear plate of the wheel column node. Fig.16 Step ⑨ shown in the figure is to insert the connecting ear plate into the opening groove of the clip-type connecting plate, and align the tenth bolt hole Ⅰ-4 and the ninth bolt hole Ⅶ-3 of the two, and then pass Fig.23 In step ⑩ shown in FIG. 10 , the corresponding fifth bolt 5-1 is inserted from one side of the corresponding bolt hole, and then passed through the other side and fixed with the fifth nut 5-2. Fig.24 As shown, the two connecting lugs of the six adjacent sides of the wheel column node are connected to the ends of the load-bearing rods in the same support unit, and so on. Fig.25 As shown, a support system is finally formed.

[0066] Finally, through Fig.26 In step ⑪, fix the seal at the middle gap above the hexagonal double-ear plate wheel column node so that the outer ring of the seal fits into the gap, and then insert the regular hexagonal cover plate into the inner ring of the seal through step ⑫. After completion, the solar photovoltaic module, the cover plate and the seal are in the same plane, so as to achieve the closure of each node of the large-span structure, achieve a good waterproof effect, and at the same time realize the separate disassembly of the photovoltaic module.

[0067] It can be understood that in the present application, two adjacent support units are in close contact with each other and have a certain sealing performance; further considering the overall sealing performance, the two adjacent support units can be connected by an existing adhesive.

[0068] Embodiment 2 The difference between this embodiment and the first embodiment is that: The adjacent two sides of the support unit are connected by the middle connecting piece, that is, the I-beam IV. Figure 8 As shown in the figure, the upper and lower flanges of the I-beam are both trapezoidal in shape. Thus, the structural system formed is shown in Figure 3 and Figure 4 shown.

[0069] The specific method of fixing the rectangular hollow tube by welding to form a stable triangular frame includes the following: using I-beam IV to weld two adjacent rectangular hollow tubes with an angle of 60°, refer to Fig.18 As shown, after welding, the web section of the I-beam is connected to the side of the rectangular hollow tube to form a stable triangular frame structure. (The welding method is only changed in this step, and the rest of the steps are the same as the U-shaped sleeve and support rod connection method).

[0070] It should be noted that the prefabricated photovoltaic building integrated large-span spatial structure system provided by the present invention can be applied to the tops of buildings such as gymnasiums, swimming pools and theaters. There is no limitation on the side and bottom structures of gymnasiums, swimming pools and theaters, but the top can adopt an prefabricated photovoltaic building integrated large-span spatial structure system in the present invention to assist municipal power supply and reduce electricity demand.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An assembled photovoltaic building integrated large-span spatial structure system, characterized in that: It includes multiple supporting structures, each supporting structure can be detachably connected, each supporting structure includes multiple supporting units, multiple supporting units can be detachably assembled into a supporting structure, and each supporting unit supports a photovoltaic module respectively; The support unit includes multiple load-bearing rods, and two adjacent load-bearing rods in the support unit are connected by support rods or welded by a middle connecting piece. Each side of the connecting frame is supported by multiple load-bearing rods. The connecting frame has at least three sides. The connecting frame is provided with grooves to support photovoltaic modules. Wheel-column nodes are respectively provided at each corner of the support unit, and the ends of the load-bearing rods are connected to the wheel-column nodes. All the support units in the support structure can be connected to a central wheel-column node together. The outer ends of two adjacent load-bearing rods of two adjacent support units in the support structure are connected to the same wheel-column node. Multiple support structures are assembled into an integrated large-span spatial structure system through the wheel-column nodes.

2. The assembled photovoltaic building integrated large-span spatial structure system according to claim 1, characterized in that: The connecting frame comprises three side edges, and the angle between two adjacent side edges is 60°; The support structure is a regular hexagonal structure; Structural adhesive is filled between two adjacent support units.

3. The assembled photovoltaic building integrated large-span spatial structure system according to claim 2, characterized in that: The load-bearing rod is a rectangular hollow tube, and a clamp-type connecting plate is arranged at the end of the rectangular hollow tube. The clamp-type connecting plate is provided with an open groove for connecting with the wheel column node. A plurality of first bolt holes are arranged along the height direction of the load-bearing rod for connecting with the side of the connecting frame.

4. The assembled photovoltaic building integrated large-span spatial structure system according to claim 2, characterized in that: The force-bearing rod is connected to the support rod via a transition member, and a second bolt hole is provided in the thickness direction of the force-bearing rod to be connected to the transition member; The transition member is a U-shaped sleeve, which is inserted into the side of the load-bearing rod through its open side. The transition member is provided with two ear plates, and the two ear plates are respectively provided with a third bolt hole for connection with the support rod. The transition member is provided with a fourth bolt hole on the side of the ear plate for connection with the load-bearing rod.

5. The assembled photovoltaic building integrated large-span spatial structure system according to claim 1, characterized in that: The middle connecting piece is an I-beam, and the upper flange and the lower flange of the I-beam are both trapezoidal in shape.

6. The assembled photovoltaic building integrated large-span spatial structure system according to claim 1, characterized in that: The connecting frame is provided with a Y-shaped support frame, each side of the Y-shaped support frame is connected to the middle of each side of the connecting frame to support the photovoltaic assembly; The ends of two adjacent sides of the connecting frame are not connected, and each side is provided with a step so that the connecting frame forms the groove; The photovoltaic assembly is provided with a Y-shaped connecting member, and the Y-shaped connecting member can be connected to the Y-shaped supporting frame.

7. The assembled photovoltaic building integrated large-span spatial structure system according to claim 3, characterized in that: The wheel column node comprises a hollow cylinder, and a pair of connecting ear plates are arranged on the outer side of each side of the hollow cylinder, and the connecting ear plates are arranged perpendicularly to the side of the hollow cylinder where they are located, and the connecting ear plates can be inserted into the opening grooves of the clip-type connecting plates, and the fasteners can connect the clip-type connecting plates to the connecting ear plates; The angle between two adjacent connecting ear plates on two adjacent side surfaces of the hollow cylinder is 60 degrees.

8. The assembled photovoltaic building integrated large-span spatial structure system according to claim 2, characterized in that: The center of the support structure is provided with the wheel column node, and sealing members are respectively provided on both sides of the wheel column node. A cover plate is provided at the center of the support structure, and the outer side surface of the cover plate cooperates with the inner side surface of the sealing member.

9. Application of an assembled photovoltaic building integrated large-span spatial structure system according to any one of claims 1 to 8, characterized in that: Applied to the roof structure of gymnasiums, swimming pools or theaters.

10. A method for assembling a prefabricated photovoltaic building integrated large-span spatial structure system according to any one of claims 1 to 8, characterized in that: It includes the following: Three load-bearing rods are assembled into a triangle shape, and two adjacent load-bearing rods are connected by support rods or by welding through middle connecting pieces; Place the load-bearing rods under each side of the connection frame, and connect the side to the corresponding load-bearing rods; Placing the photovoltaic module in the groove of the connection frame, and connecting the photovoltaic module to the connection frame; A wheel-column node is arranged at the end of the connection frame, and the end of the load-bearing rod is connected to the wheel-column node to form a support unit; A plurality of support units are assembled into a support structure, and all support units in the support structure can be connected to a central wheel-column node, and the outer ends of two adjacent load-bearing rods of two adjacent support units in the support structure are connected to the same wheel-column node; Multiple supporting structures are assembled into an integrated large-span spatial structure system through wheel-column nodes.

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