Connection structure shared by photovoltaic system and metal roof system

Abstract

Disclosed in the present invention is a connection structure shared by a photovoltaic system and a metal roof system, the connection structure comprising concrete buttresses, pre-embedded parts, adapters, cross beams, a metal roof main keel and a photovoltaic system main keel, wherein the lower portion of each pre-embedded part is buried in a corresponding concrete buttress, the upper end of the pre-embedded part is connected to a corresponding adapter, and the adapter is fixed to the upper portion of the concrete buttress; each cross beam is connected to a corresponding adapter by means of a first connector; the metal roof main keel is perpendicular to the cross beams and is welded and fixed to the side portions of the cross beams; and the photovoltaic system main keel is arranged in parallel to and above the metal roof main keel, and the photovoltaic system main keel is connected to a second connector fixed to the top of each cross beam. The present invention has the beneficial effects that the metal roof main keel and the photovoltaic system main keel are integrally mounted on the cross beams, and the cross beams are fixed to the buttresses, such that the integrity of the whole structure is good, and the stability and wind resistance of the whole roof system are significantly improved.

Description

A connection structure commonly used for photovoltaic systems and metal roofing systems Technical Field

[0001] The present invention relates to the technical field of energy conservation, and in particular to a connection structure commonly used for a photovoltaic system and a metal roofing system. Background Art

[0002] With the vigorous advocacy of green building and energy conservation, more and more building roofs are adopting designs that combine photovoltaic systems and metal roof systems. However, the photovoltaic systems and metal roof systems in most buildings are independently installed, both using traditional steel structure brackets and installed on the concrete roof. The two are separated from each other and form independent structural systems. There is a lot of cross-interference in the construction of the two processes, which makes organization and coordination difficult. In addition, the connection between the steel structure bracket and the roof concrete is prone to rust, which damages the roof waterproofing structure and creates the risk of roof leakage. In addition, the independent installation of the photovoltaic system and the metal roof system reduces the overall stability of the roof structure. The self-weight and wind load of the roof system are all borne by the traditional steel structure bracket columns, which is not conducive to use in coastal areas with high wind loads.

[0003] Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0004] The purpose of the present invention is to address the deficiencies of the existing technology and provide a connection structure for photovoltaic systems and metal roofing systems, aiming to improve the overall stability of the roof structure and reduce the risk of roof leakage.

[0005] The technical solution adopted by the present invention is: a connection structure commonly used for photovoltaic systems and metal roofing systems, including concrete piers, embedded parts, adapters, beams, metal roof main keels and photovoltaic system main keels;

[0006] The concrete piers are arranged at intervals on the roof panel; the lower portion of the embedded part is embedded in the concrete pier, the upper end of the embedded part is connected to the adapter, and the adapter is fixed to the upper portion of the concrete pier; the crossbeam is provided on the top of the adapter and is connected to the adapter via a first connecting member;

[0007] The main keel of the metal roof is perpendicular to the beam and is welded and fixed to the side of the beam;

[0008] The main keel of the photovoltaic system is connected to a second connecting piece fixed on the top of the beam.

[0009] According to the above scheme, the adapter includes a steel square tube and a steel plate. The lower end of the steel square tube is fixedly connected to the upper end of the embedded part, and the upper end of the steel square tube is connected to the lower surface of the steel plate; the upper surface of the steel plate is connected to the beam through a first connecting member.

[0010] According to the above scheme, a concrete protective layer is set in the gap between the steel square tube and the steel plate.

[0011] According to the above solution, sealing structures are provided on both sides of the steel square tube below the steel plate; the sealing structure comprises a foam rod on the inner side and a sealant on the outer side.

[0012] According to the above scheme, the first connecting member is a first angle steel, the horizontal section at the bottom of the first angle steel is connected to the top of the steel plate of the adapter, and the vertical section on the side of the first angle steel is in contact with the outer wall of the beam; the two first connecting members are arranged on both sides of the beam, and the vertical sections of the first angle steels of the two first connecting members are connected by a bolt that crosses the beam.

[0013] According to the above solution, the vertical section of the first angle steel is provided with an oblong hole, and the crossbeam is connected to the first angle steels on both sides by bolts passing through the oblong hole.

[0014] According to the above scheme, the second connecting member is a second angle steel, and a second angle steel is provided on both sides of the main keel of the photovoltaic system. The bottom horizontal section of the second angle steel is connected to the top of the beam; the main keel of the photovoltaic system and the vertical sections of the side parts of the second angle steel on both sides are connected by bolts.

[0015] According to the above solution, the vertical section of the second angle steel is provided with an oblong hole, and the main keel of the photovoltaic system is connected to the second angle steels on both sides of the main keel of the photovoltaic system by stainless steel bolts passing through the oblong hole.

[0016] According to the above scheme, the embedded parts include embedded steel plates and several embedded steel bars; the embedded steel bars are arranged perpendicular to the embedded steel plates, and the upper ends of the embedded steel bars are welded to the lower surfaces of the embedded steel plates; the tops of the embedded steel plates are connected to the steel square tubes of the adapters.

[0017] According to the above solution, a waterproof layer is provided on the roof panel and the concrete pier, and a concrete protective layer is provided on the surface of the waterproof layer.

[0018] The beneficial effects of the present invention are as follows: in the present invention, the main keel of the metal roof and the main keel of the photovoltaic system are integrated and installed on the crossbeam, and the crossbeam is fixed on the pier. The integrity of the entire structure is good, which greatly improves the stability and wind resistance of the entire roof system; a waterproof layer is laid on the roof and the concrete pier to effectively prevent leakage, and concrete piers are set, and then connected to the embedded parts through adapters, which not only solves the hidden danger of seepage directly buried in the roof, but also can adjust the position and height of the crossbeam through the adapter, avoiding the problem of high precision requirements and easy deviation of embedded parts, and reducing the difficulty of installation; the metal roof panel is located below the main keel of the photovoltaic system. The metal roof is constructed first, and then the photovoltaic system is constructed. The construction processes of the two do not interfere with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a longitudinal sectional view of a specific embodiment of the present invention.

[0020] FIG2 is a transverse cross-sectional view of this embodiment.

[0021] FIG3 is a schematic diagram showing the connection between the photovoltaic system main keel, the metal roof system main keel and the crossbeam in this embodiment.

[0022] FIG4 is a schematic top view of the roof system of this embodiment.

[0023] In the figure, 1. Roof panel; 2. Concrete pier; 3. Embedded parts; 3-1. Embedded steel plate; 3-2. Anchor bar; 4-1. Steel plate; 4-2. Steel square tube; 4-3. Weld; 5-1. Waterproof membrane; 5-2. Concrete protective layer; 5-3. Sealing structure; 6-1. First angle steel; 6-2. Stainless steel bolt; 6-3. Beam; 6-4. Second angle steel; 6-5. Steel gasket; 6-6. Long round hole; 7-1. Main purlin of metal roof; 7-2. Aluminum veneer; 8-1. Main purlin of photovoltaic system; 8-2. Secondary purlin of photovoltaic system; 8-3. Photovoltaic panel. DETAILED DESCRIPTION

[0024] In order to better understand the present invention, the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0025] As shown in Figures 1 to 4, a connection structure commonly used for a photovoltaic system and a metal roof system is specifically a connection structure commonly used for a photovoltaic system and a metal roof system, including a concrete pier 2, an embedded part 3, an adapter, a beam 6-3, a metal roof main keel 7-1, and a photovoltaic system main keel 8-1;

[0026] The concrete piers 2 are arranged at intervals on the roof panel 1; the lower portion of the embedded part 3 is embedded in the concrete pier 2, and the upper end of the embedded part 3 is connected to the adapter, which is fixed to the upper portion of the concrete pier 2; the crossbeam 6-3 is provided on the top of the adapter and is connected to the adapter via a first connecting member;

[0027] The main keel 7-1 of the metal roof is perpendicular to the crossbeam 6-3 and is welded and fixed to the side of the crossbeam 6-3;

[0028] The photovoltaic system main keel 8-1 is connected to the second connecting piece fixed on the top of the crossbeam 6-3;

[0029] The roof panel 1 and the concrete pier 2 are both provided with a waterproof layer, and the surface of the waterproof layer is provided with a concrete protective layer 5-2.

[0030] In the present invention, two waterproof layers are arranged in the concrete protective layer 5-2 on the top of the roof panel 1 at intervals along the height direction; the waterproof layers are waterproof coiled materials 5-1. The crossbeam 6-3 is a steel square tube.

[0031] In the present invention, the photovoltaic system includes photovoltaic panels 8-3, several photovoltaic system main purlins 8-1, and several photovoltaic system secondary purlins 8-2; the several photovoltaic system main purlins 8-1 are arranged in parallel and installed at intervals on the top of the crossbeam 6-3 through a second connecting member; the photovoltaic system secondary purlins 8-2 are perpendicular to the photovoltaic system main purlins 8-1, and the two ends of the photovoltaic system secondary purlins 8-2 are respectively connected to two photovoltaic system main purlins 8-1; the photovoltaic system main purlins 8-1 and the photovoltaic system secondary purlins 8-2 constitute the skeleton structure of the photovoltaic system; the photovoltaic panels 8-3 are installed on the skeleton structure of the photovoltaic system. The photovoltaic system main purlins 8-1 are aluminum alloy square tubes. In the present invention, the structure of the photovoltaic system is prior art and will not be repeated here.

[0032] In the present invention, the metal roof typically comprises several main metal roof purlins 7-1, secondary metal roof purlins, and metal roof panels 1. Several main metal roof purlins 7-1 are connected to the crossbeams 6-3 (possibly welded). The secondary metal roof purlins are perpendicular to the main metal roof purlins 7-1 and welded together to form the metal roof's skeleton structure. The metal roof panels 1 are secured to the metal roof's skeleton structure. The main metal roof purlins 7-1 are steel square tubes; the metal roof panels 7-2 are aluminum veneers. The metal roof structure described in the present invention is based on existing mature technology and will not be further described here.

[0033] Preferably, the adapter includes a steel square tube 4-2 and a steel plate 4-1, the lower end of the steel square tube 4-2 is fixedly connected to the upper end of the embedded part 3, and the upper end of the steel square tube 4-2 is connected to the lower surface of the steel plate 4-1; the upper surface of the steel plate 4-1 is connected to the crossbeam 6-3 through a first connecting member; a concrete protective layer 5-2 is arranged in the gap between the steel square tube 4-2 and the steel plate 4-1.

[0034] Preferably, a sealing structure 5-3 is provided on both sides of the steel square tube 4-2 below the steel plate 4-1. In the present invention, the sealing structure 5-3 includes a foam rod on the inside and a sealant on the outside, which is a prior art and will not be described in detail here.

[0035] Preferably, the first connecting member is a first angle steel 6-1, the horizontal section at the bottom of the first angle steel 6-1 is connected to the top of the steel plate 4-1 of the adapter (can be welded, weld 4-3 is shown in the figure), and the vertical section on the side of the first angle steel 6-1 is fitted with the outer wall of the beam 6-3; two first connecting members are arranged on both sides of the beam 6-3, and the vertical sections of the first angle steel 6-1 of the two first connecting members are connected by a bolt 6-2 that crosses the beam 6-3.

[0036] In the present invention, an oblong hole 6-6 is provided in the vertical section of the first angle steel 6-1, and the crossbeam 6-3 is connected to the first angle steels 6-1 on both sides by bolts 6-2 passing through the oblong hole 6-6; the height of the crossbeam 6-3 can be adjusted through the oblong hole 6-6, and then welded and fixed by steel gaskets 6-5.

[0037] Preferably, the second connecting member is a second angle steel 6-4, and a second angle steel 6-4 is provided on both sides of the main keel 8-1 of the photovoltaic system. The bottom horizontal section of the second angle steel 6-4 is connected to the top of the beam 6-3 (which can be welded); the main keel 8-1 of the photovoltaic system and the vertical sections of the sides of the second angle steel 6-4 on both sides are connected by bolts 6-2.

[0038] In the present invention, the vertical sections of the second angle steel 6-4 are provided with oblong holes 6-6. Stainless steel bolts 6-2 pass through the oblong holes 6-6 to connect the photovoltaic system main keel 8-1 to the second angle steel 6-4 on either side of the photovoltaic system main keel 8-1. The slope of the photovoltaic panels 8-3 fixed to the photovoltaic system main keel 8-1 is adjusted by moving the stainless steel bolts 6-2 through the oblong holes 6-6 up and down. The panels are then secured by welding using steel washers 6-5.

[0039] In the present invention, the embedded part 3 includes an embedded steel plate 3-1 and a plurality of anchor bars 3-2. The anchor bars 3-2 are arranged perpendicular to the embedded steel plate 3-1 (the upper end of the embedded steel bar is welded to the lower surface of the embedded steel plate), and the number of the anchor bars 3-2 is obtained by calculation. The embedded steel plate 3-1 is flush with the upper surface of the concrete pier 2, and the top of the embedded steel plate 3-1 is welded to the steel square tube 4-2 of the adapter.

[0040] In the present invention, the embedded parts 3, the adapters, the angle steels, the steel square tubes 4-2, and the main keels 7-1 of the metal roof are all processed by the hot-dip galvanizing process. Example

[0041] Concrete piers 2 are arranged on the roof panel 1, and the spacing between them is based on the roof deepening drawing (which can be 3000mm). Embedded parts 3 are buried in the concrete piers 2 and connected to the adapter; the adapter is arranged above the embedded part 3, and sealing material is filled between the adapter and the completed concrete protective layer 5-2; the beam 6-3 is located on the adapter and is connected to the adapter through the first angle steel 6-1. At the same time, the beam 6-3 is connected to the main keel 8-1 of the photovoltaic system and the main keel 7-1 of the metal roof; the main keel 8-1 of the photovoltaic system and the main keel 7-1 of the metal roof are both arranged perpendicular to the beam 6-3, the main keel 8-1 of the photovoltaic system is located above the beam 6-3, and is connected through the second angle steel 6-4. The main keel 7-1 of the metal roof is located on the side of the beam 6-3 and is directly welded.

[0042] The adapter consists of a steel square tube 4-2 and a steel plate 4-1. One end of the steel square tube 4-2 and the steel plate 4-1 are connected by welding to form an adapter, and the other end is welded and fixed to the embedded part 3. The top elevation height of the adapter is controlled by the length of the steel square tube 4-2, and the specific length is obtained through on-site measurement. An oblong hole 6-6 is provided on one side of the first angle steel 6-1, and the other side is connected to the adapter by welding. The crossbeam 6-3 is connected to the first angle steels 6-1 on both sides by stainless steel bolts 6-2 passing through the oblong hole 6-6. The height of the crossbeam 6-3 can be adjusted through the oblong hole 6-6, and then it is welded and fixed by steel gaskets 6-5; the second angle steel 6-4 is set on the crossbeam 6-3, and an oblong hole 6-6 is provided on one side, and the other side is welded and connected to the crossbeam 6-3. The main keel 8-1 of the photovoltaic system is connected to the second angle steels 6-4 on both sides by stainless steel bolts 6-2 passing through the oblong hole 6-6. The slope of the photovoltaic roof can be adjusted through the oblong hole 6-6, and then it is welded and fixed by steel gaskets 6-5.

[0043] The main purlin 8-1 of the photovoltaic system and the main purlin 7-1 of the metal roof are connected into a whole through the crossbeam 6-3, the first connecting piece and the second connecting piece, and then welded and fixed to the embedded parts 3 in the concrete pier 2 through the adapter, thereby realizing the sharing of the concrete pier 2 and greatly improving the stability and wind resistance of the entire roof system; by setting the concrete pier 2 and then connecting it with the embedded parts 3 through the adapter, not only the hidden danger of penetration caused by direct burial of the roof is reduced, but also the position and height of the crossbeam 6-3 can be adjusted through the adapter, avoiding the problem of high precision requirements and easy deviation of the embedded parts 3, reducing the difficulty of installation, and facilitating the fine-tuning and movement of the roof system, ensuring the installation accuracy of the photovoltaic system components and the metal roof system, and making both safer and more stable.

[0044] In this embodiment, concrete piers 2 are arranged in an orderly fashion at regular intervals and poured along with the roof concrete. Embedded components 3 are embedded within them, with their upper surfaces flush with the top surfaces of the concrete piers 2. The embedded steel plates 3-1 of the embedded components 3 are the same size and quantity as the cross-sectional dimensions of the concrete piers 2.

[0045] In this embodiment, the steel plate 4-1 of the adapter is fully welded to the steel square tube 4-2, and the steel square tube 4-2 is fully welded to the embedded part 3. The adapter is generally welded in the center of the embedded part 3. The position can be adjusted appropriately to reduce the horizontal deviation caused by embedding, and the elevation error can also be reduced by adjusting the length of the steel square tube 4-2 in the adapter.

[0046] In this embodiment, a waterproof membrane 5-1 and a sealing structure 5-3 are installed between the adapter and the embedded part 3. The adapter and embedded part 3 are fully welded to effectively prevent rainwater penetration. Two layers of waterproof membrane 5-1 are installed at the weld seam between the two, preventing rainwater from corroding the weld and further improving waterproof performance. A sealing structure 5-3 is installed between the adapter's steel plate 4-1 and the roof concrete protective layer 5-2. The sealing structure includes an inner foam rod and an outer sealant to prevent rainwater erosion and accumulation in gaps. The adapter, located on the concrete pier 2, avoids the risk of water penetration caused by an oversized embedded part 3. The embedded part 3 is taller than the concrete roof panel 1, reducing damage caused by rainwater erosion and improving the durability of the connection structure.

[0047] In this embodiment, the first angle steel 6-1 is relatively large in size, and an oblong hole 6-6 is provided in the vertical section of the first angle steel 6-1. The horizontal section of the first angle steel 6-1 is connected to the steel plate 4-1 of the adapter (the three edges of the contact surface are fully welded); the first angle steels 6-1 are arranged symmetrically, and the spacing between two adjacent first angle steels 6-1 on the same side is the width of the beam 6-3. A circular hole is provided in the middle position of the height of the beam 6-3. The stainless steel bolt 6-2 passes through the steel gasket 6-5, the oblong hole 6-6 and the circular hole to connect the beam 6-3 to the first angle steels 6-1 on both sides. After overall adjustment, the steel gasket 6-5 is welded to the first angle steel 6-1 for fixation. A second angle steel 6-4 is installed on the upper part of the beam 6-3. It is regularly arranged along the horizontal length direction of the beam 6-3 according to the width of the photovoltaic panels 8-3. The beam 6-3 is lengthened by inserting a steel insert at the position of the concrete pier 2. The second angle steel 6-4 is relatively small in size. An oblong hole 6-6 is provided in the vertical section of the second angle steel 6-4. The horizontal section of the second angle steel 6-4 is connected to the upper surface of the beam 6-3, and the three edges of the contact surface are fully welded. The distance between two adjacent second angle steels 6-4 is the width of the main keel 8-1 of the photovoltaic system.

[0048] In this embodiment, the main metal roof purlin 7-1 is arranged perpendicular to the cross beam 6-3, located on one side of the cross beam 6-3, with the upper surface flush, the cross-sectional dimensions of the two being consistent, and the four sides of the contact surface being fully welded; the horizontal metal roof secondary purlin is perpendicular to the main metal roof purlin 7-1, and the two are connected by welding, and the upper surfaces of the two are flush.

[0049] In this embodiment, the photovoltaic roof system components are connected to the crossbeam 6-3 through the second angle steel 6-4, and the main keel 8-1 of the photovoltaic system is set between the two second angle steels 6-4; a circular hole is opened at the middle position along the height of the main keel 8-1 of the photovoltaic system, and the stainless steel bolt 6-2 passes through the steel gasket 6-5, the oblong hole 6-6 of the second angle steel 6-4 and the circular hole to connect the main keel 8-1 of the photovoltaic system to the second angle steels 6-4 on both sides. After the overall adjustment, the steel gasket 6-5 is welded to the second angle steel 6-4 for fixation. The horizontal secondary keel 8-2 of the photovoltaic system is set perpendicular to the main keel 8-1 of the photovoltaic system, and the upper surface is flush.

[0050] The above are only preferred embodiments of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope of protection of the present invention.

Claims

1. A connection structure commonly used for photovoltaic systems and metal roofing systems, characterized in that: Including concrete piers, embedded parts, adapters, beams, metal roof main keels and photovoltaic system main keels; The concrete piers are arranged at intervals on the roof panel; the lower part of the embedded part is embedded in the concrete pier, the upper end of the embedded part is connected to the adapter, and the adapter is fixed to the upper part of the concrete pier; the crossbeam is arranged on the top of the adapter and connected to the adapter through the first connecting member; The main keel of the metal roof is perpendicular to the cross beam and is welded and fixed to the side of the cross beam; The main keel of the photovoltaic system is connected to a second connecting piece fixed on the top of the crossbeam.

2. The connection structure for photovoltaic system and metal roofing system as claimed in claim 1, characterized in that: The adapter comprises a steel square tube and a steel plate, wherein the lower end of the steel square tube is fixedly connected to the upper end of the embedded part, and the upper end of the steel square tube is connected to the lower surface of the steel plate; the upper surface of the steel plate is connected to the crossbeam via a first connecting member.

3. The connection structure for a photovoltaic system and a metal roofing system as claimed in claim 2, characterized in that: A concrete protective layer is provided in the gap between the steel square tube and the steel plate.

4. The connection structure for a photovoltaic system and a metal roofing system as claimed in claim 2, characterized in that: Sealing structures are arranged on both sides of the steel square tube below the steel plate; the sealing structure comprises a foam rod on the inner side and a sealing glue on the outer side.

5. The connection structure for a photovoltaic system and a metal roofing system as claimed in claim 2, characterized in that: The first connecting member is a first angle steel, the horizontal section at the bottom of the first angle steel is connected to the top of the steel plate of the adapter, and the vertical section on the side of the first angle steel is in contact with the outer wall of the beam; the two first connecting members are arranged on both sides of the beam, and the vertical sections of the first angle steels of the two first connecting members are connected by a bolt that crosses the beam.

6. The connection structure for photovoltaic system and metal roof system as claimed in claim 5, characterized in that ,, the vertical section of the first angle steel is provided with an oblong hole, and the cross beam is connected to the first angle steels on both sides by bolts passing through the oblong holes.

7. The connection structure for a photovoltaic system and a metal roofing system as claimed in claim 2, characterized in that: The second connecting member is a second angle steel, and second angle steels are provided on both sides of the main keel of the photovoltaic system. The bottom horizontal section of the second angle steel is connected to the top of the beam; the main keel of the photovoltaic system and the vertical sections of the side parts of the second angle steels on both sides are connected by bolts.

8. The connection structure for a photovoltaic system and a metal roofing system as claimed in claim 7, characterized in that: The vertical section of the second angle steel is provided with an oblong hole, and the main keel of the photovoltaic system is connected to the second angle steels on both sides of the main keel of the photovoltaic system by stainless steel bolts passing through the oblong hole.

9. The connection structure for a photovoltaic system and a metal roofing system as claimed in claim 2, characterized in that: The embedded parts include embedded steel plates and a plurality of embedded steel bars; the embedded steel bars are arranged vertically to the embedded steel plates, and the upper ends of the embedded steel bars are welded to the lower surface of the embedded steel plates; the top of the embedded steel plates is connected to the steel square of the adapter.

10. The connection structure for a photovoltaic system and a metal roofing system as claimed in claim 2, characterized in that: The roof panel and the concrete pier are both provided with a waterproof layer, and the surface of the waterproof layer is provided with a concrete protective layer.

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