A yard assembled photovoltaic support system

Abstract

The utility model discloses a kind of garden assembly type photovoltaic support systems, belong to photovoltaic support technical field, improve construction efficiency, reduce welding point, it includes oblique truss assembly and stand, the oblique truss assembly includes two chord bars of upper and lower parallel arrangement and several web members between the two chord bars of upper and lower, the web member includes straight web member and inclined web member, wherein, the upper and lower two ends of straight web member correspond with two chord bars vertically connected, the upper and lower two ends of inclined web member correspond with two chord bars obliquely connected, the joint node of web member and chord bar is equipped with hinged member, the hinged member includes vertically connected bottom plate and side plate, the bottom plate is fixed with chord bar using bolt, the side plate is hinged with web member using bolt;The top of the stand is equipped with the support seat of inclined arrangement and the inclination angle is consistent with lower chord bar, the support seat is U-shaped structure, wherein lower chord bar is arranged in support seat, and lower chord bar and support seat are fixed using bolt.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic technology, specifically relating to a courtyard photovoltaic bracket. Background Technology

[0002] Backyard photovoltaic (PV) systems typically employ a truss structure that spans the roof. Currently, the most common implementation method for residential backyard truss PV systems is a fully welded structure. This technology connects metal components such as columns, beams, and braces using shielded metal arc welding (SMAW), achieving rigid fixation at each node through welding. While this type of welded system offers a certain level of structural strength and can generally meet foundation load design requirements, it also suffers from drawbacks such as low construction efficiency, difficulty in controlling welding quality, high labor costs for welding operations, and the generation of arc light pollution and metal fumes during the welding process. Consequently, traditional fully welded backyard PV systems are ill-suited to the installation requirements of new flexible and modular PV systems, limiting the widespread adoption of residential PV systems. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a prefabricated photovoltaic support system for courtyards. The inclined truss components and the connection between the inclined truss components and the columns are all prefabricated structures, which solves the problems of numerous welding parts, low construction efficiency, and difficulty in controlling welding quality in the prior art for courtyard photovoltaic supports.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A prefabricated photovoltaic support system for courtyards includes a sloping truss assembly spanning the roof of a house and columns located at the front and rear of the house to support the sloping truss assembly. The sloping truss assembly has a sloping mounting surface. The sloping truss assembly includes two parallel chords and several web members located between the two chords. The web members include straight web members and diagonal web members. The upper and lower ends of the straight web members are perpendicularly connected to the two chords, and the upper and lower ends of the diagonal web members are obliquely connected to the two chords. A hinge is provided at the connection point between the web members and the chords. The hinge includes a vertically connected base plate and a side plate. The base plate is fixed to the chords with bolts, and the side plate is hinged to the web members with bolts. The top of the column is provided with an inclined support seat with the same inclination angle as the lower chord. The support seat has a U-shaped structure, with the lower chord located inside the support seat and fixed to the support seat with bolts.

[0005] Preferably, the support base has fastening holes on both sides and a fixing hole on the lower chord. Bolts pass laterally through the fastening holes and the fixing holes to fix the lower chord to the support base.

[0006] Preferably, the inner bottom wall of the support base is provided with a concave-convex positioning structure between the bottom surface of the lower chord and the inner bottom wall of the support base.

[0007] Preferably, the column is a square tube, the top of the column is provided with a slanted port, the slanted port is provided with a sealing element, and the bottom of the support base is fixed to the sealing element.

[0008] Preferably, the chord and web members are made of U-steel.

[0009] Preferably, the hinge and the support are sheet metal parts.

[0010] Preferably, a diagonal brace is provided between the column and the lower chord.

[0011] Preferably, a transverse support rod is provided between the lower chords of two adjacent transverse diagonal truss assemblies.

[0012] Preferably, a horizontal reinforcing strut is provided between two adjacent horizontal columns; and / or, an oblique reinforcing strut is provided between the two outermost horizontal columns.

[0013] The present invention adopts the above technical solution and has the following beneficial effects: 1. In the prefabricated photovoltaic support system for courtyards of this utility model, the inclined truss component adopts a prefabricated structural design, including two parallel chords and several webs located between the two chords. Hinges are provided at the joints between the webs and the chords. The hinges include a bottom plate and a side plate that are vertically connected. The bottom plate is fixed to the chords with bolts, and the side plates are hinged to the webs with bolts. The webs, chords, and hinges can all be mass-produced in the factory. Not only are the specifications of the two chords fixed, but the specifications of the straight webs and the inclined webs are also fixed. Therefore, it is convenient to quickly assemble on the construction site. The connection between the components is simple, and the structure is safe and reliable.

[0014] Furthermore, the columns and diagonal truss components also adopt a prefabricated structure. The top of the column is provided with an inclined support seat with the same inclination angle as the lower chord. The support seat is a U-shaped structure, and the lower chord is located inside the support seat and fixed with bolts.

[0015] Due to its prefabricated structure, the prefabricated nature of the construction process significantly improves construction efficiency, reduces the number of welding points, and effectively alleviates the problems of high labor costs for welders and inconsistent welding quality. It also avoids occupational hazards to workers caused by arc light pollution and metal fumes during welding operations.

[0016] 2. The support base has fastening holes on both sides, and the lower chord has fixing holes. Bolts pass through the fastening holes and fixing holes laterally to fix the lower chord to the support base. Since the bolts are installed laterally, there is no interference during the installation process.

[0017] 3. A concave-convex positioning structure is provided between the inner bottom wall of the support base and the bottom surface of the lower chord. During the installation process, when the diagonal truss assembly is assembled with the column, the positional relationship between the lower chord and the front and rear columns is first located by the concave-convex positioning structure. Then, the fastening bolts pass horizontally through the fastening holes and fixing holes to fix the lower chord and the support base together. Therefore, it can be installed quickly and the construction efficiency can be improved.

[0018] 4. Since the chord members and web members are made of U-steel, which is made of standard U-steel, it has the advantages of high pressure resistance, long support time, easy installation and not easy deformation. It can replace square tubes and reduce costs compared with square tubes.

[0019] In addition, since the hinge and support are sheet metal parts, they are not only lightweight and strong, but also enable rapid prototyping and mass standardized production, significantly reducing the cost per unit.

[0020] 5. Because there are diagonal braces between the columns and the lower chord, horizontal reinforcing braces between two adjacent columns in the lateral direction, and diagonal reinforcing braces between the two outermost columns in the lateral direction, the structural force system of the photovoltaic support can be changed, the load-bearing capacity can be enhanced, and the overall structural stability of the support can be improved.

[0021] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0022] The utility model will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a prefabricated photovoltaic support system for courtyards according to this utility model; Figure 2 This is a partial structural schematic diagram of the inclined truss assembly in this utility model; Figure 3 This is a partial structural schematic diagram of the inclined truss assembly in this utility model; Figure 4 This is a schematic diagram showing the overall distribution of the inclined truss assembly in this utility model; Figure 5 This is a schematic diagram of the top structure of the column in this utility model; Figure 6 This is a schematic diagram of the top structure of the column in this utility model; Figure 7 This is a schematic diagram of the top structure of the column in this utility model; Figure 8 This is a schematic diagram of the top structure of the column in this utility model; Figure 9 This is a schematic diagram of the bottom structure of the column in this utility model; Figure 10This is a schematic diagram of the distribution structure of the front row of columns in this utility model; Figure 11 This is a schematic diagram of the distribution structure of the rear row of columns in this utility model; Reference numerals: Photovoltaic module 100, diagonal truss assembly 1, upper chord 11, lower chord 12, straight web member 13, diagonal web member 14, hinge 15, base plate 151, side plate 152, column 2, column body 21, support base 22, sealing component 23, concave-convex positioning structure 24, diagonal brace 25, spiral steel pile 26, pile body 261, flange plate 262, reinforcing rib 27, purlin 3, purlin fixing bolt 31, pressure block assembly 4, lower pressure block 41, upper pressure block 42, pressure block bolt 43, transverse support rod 5, horizontal reinforcing strut 6, diagonal reinforcing strut 7, building 8. Detailed Implementation

[0023] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation details without creative effort are all within the protection scope of the present utility model. It will be understood by those skilled in the art that, without conflict, the following embodiments and features in the implementation details can be combined with each other.

[0024] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," and "lateral," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0027] This embodiment aims to address the problems of numerous welding points in existing courtyard photovoltaic (PV) brackets, resulting in low construction efficiency and difficulty in controlling welding quality. (Refer to...) Figures 1 to 11 As shown, a courtyard prefabricated photovoltaic support system includes a sloping truss assembly 1 spanning the roof of a house 8 and columns 2 located at the front and rear of the house 8 to support the sloping truss assembly 1. Referring to existing sloping truss assembly designs, the sloping truss assembly 1 is inclined overall, allowing the photovoltaic modules installed on it to form a corresponding tilt angle. Therefore, the sloping truss assembly 1 has a sloping mounting surface for installing the photovoltaic modules 100. The sloping truss assembly 1 includes two parallel chords and several web members located between the two chords. The two chords are an upper chord 11 and a lower chord 12. The web members include straight web members 13 and inclined web members 14. The upper and lower ends of the straight web members 13 are perpendicularly connected to the two chords, and the upper and lower ends of the inclined web members 14 are inclinedly connected to the two chords.

[0028] Combining existing technology, multiple diagonal truss components 1 are arranged at lateral intervals to cover the space directly above the roof of the building. For example... Figure 3 As shown, purlins 3 are vertically intersecting and connected to the upper chords 11 of multiple diagonal truss components 1, also employing a prefabricated fixing structure, here fixed using purlin fixing bolts 31. The purlins 3 are made of C-steel, and have inner limiting flanges on both sides of their openings. The photovoltaic modules 100 are installed on the purlins 3 using a pressure block assembly 4. The pressure block assembly 4 includes a lower pressure block 41, an upper pressure block 42, and a pressure block bolt 43 connecting the lower pressure block 41 and the upper pressure block 42. The lower pressure block 41 is located inside the purlin, and the upper pressure block 42 presses and fixes the photovoltaic modules. Additionally, as... Figure 2 and Figure 4 As shown, the lower chords 12 of multiple diagonal truss components 1 are vertically intersected by transverse support rods 5. Thus, multiple diagonal truss components are connected into a whole.

[0029] In this embodiment, the diagonal truss assembly 1 is a prefabricated structure. A hinge 15 is provided at the junction of the web member and the chord member. The hinge 15 includes a bottom plate 151 and a side plate 152 that are vertically connected. The bottom plate 151 is fixed to the chord member with bolts, and the side plate 152 is hinged to the web member with bolts. The column 2 includes a column body 21. The top of the column is provided with an inclined support 22 with the same inclination angle as the lower chord member. The support 22 has a U-shaped structure, with the lower chord member 12 located within the support 22 and fixed with bolts. The bottom of the support 22 is connected to the top of the column body.

[0030] In the aforementioned technical solution, the web members, chord members, and hinged components can all be mass-produced in the factory. Not only are the specifications of the upper and lower chord members fixed, but the specifications of the straight and diagonal web members are also fixed. Therefore, it facilitates rapid assembly on the construction site, and the connection methods between components are simple, resulting in a safe and reliable structure. Furthermore, the columns and diagonal truss components also adopt a prefabricated structure, with the lower chord member located within the support base and fixed with bolts. Due to the prefabricated structure, its prefabricated characteristics greatly improve construction efficiency, reduce most welding points, effectively alleviate the problems of high labor costs for welders, and the difficulty in controlling and inconsistent welding quality. It also avoids occupational hazards to construction workers caused by arc light pollution and metal fumes during electric welding.

[0031] Specifically, such as Figure 5 and Figure 6 As shown, the support base 22 has fastening holes on both side walls. Additionally, the lower chord 12 has fixing holes, and bolts pass laterally through the fastening holes and fixing holes to fix the lower chord 12 to the support base 22. Here, the bolts are installed laterally, ensuring no interference during installation.

[0032] Furthermore, to facilitate quick assembly of the lower chord and the support base, a concave-convex positioning structure is provided between the inner bottom wall of the support base 22 and the bottom surface of the lower chord. Specifically, as shown... Figure 8 As shown, the inner bottom wall of the support base is provided with a lower concave-convex positioning structure 24. The lower concave-convex positioning structure 24 is continuously arranged along the inclined direction of the inner bottom wall of the support base, that is, the boss and the groove are staggered and continuously arranged along the inclined direction of the inner bottom wall. A positioning plate can be pre-fixed on the bottom surface of the lower chord at the docking position with the column. The positioning plate is provided with an upper concave-convex positioning structure, which is similar to the structure of the lower concave-convex positioning structure 24, but the boss and the groove between the two are staggered, so that the concave-convex positioning structures between the two can fit together. In this way, during the installation process, when the inclined truss assembly is assembled with the column, the positional relationship between the lower chord and the front and rear columns is first located by the concave-convex positioning structure. Then, the bolts pass laterally through the fastening holes and fixing holes to fix the lower chord to the support base. Therefore, installation can be carried out quickly and construction efficiency can be improved.

[0033] Specifically, such as Figures 5 to 7 As shown, the column body 21 is a square tube, and the top of the column body is provided with a slanted port, at which a sealing element 23 is provided. The bottom of the support base 22 is fixed to the sealing element, specifically by welding.

[0034] Combining existing technologies, such as Figure 9 As shown, the bottom of the column body 21 is connected to the spiral steel pile 26. The spiral steel pile 26 includes a pile body 261 that penetrates into the ground during installation and a flange plate 262 that connects to the column base component. The pile body is provided with spiral blades, and the flange plate can have fixing holes for bolt connection. The column body is fixed to the column base floor provided with the column body by bolts. Alternatively, the bottom of the column body can be welded to the flange plate. A reinforcing rib 27 is also provided between the flange plate and the bottom of the column body.

[0035] In this embodiment, the chord members and web members are made of U-steel, specifically including an upper chord 11, a lower chord 12, a straight web member 13, and a diagonal web member 14. That is, all members constituting the diagonal truss assembly are made of standard U-steel. U-steel has advantages such as high pressure resistance, long support time, easy installation, and resistance to deformation, replacing square tubing and reducing costs compared to square tubing. The hinge 15 and support base 22 are sheet metal parts. They are not only lightweight and high-strength, but also allow for rapid prototyping and mass standardized production, significantly reducing unit costs.

[0036] Furthermore, such as Figure 1 As shown, a diagonal brace 25 is provided between the column 2 and the lower chord 12. This can change the structural force system of the photovoltaic support, enhance its load-bearing capacity, and improve the overall structural stability of the support. In addition, a column reinforcement structure is provided between two adjacent columns laterally, such as... Figure 10 and Figure 11 As shown, horizontal reinforcing struts 6 are installed between two adjacent horizontal columns. Specifically, the horizontal reinforcing struts 6 are located near the top of the columns, connecting all the front columns and all the rear columns. Furthermore, diagonal reinforcing struts 7 are installed between the two outermost horizontal columns. This alters the structural stress system of the photovoltaic support system, enhances its load-bearing capacity, and improves the overall structural stability of the support. Of course, it is understandable that other reinforcing structures can also be installed.

[0037] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A courtyard prefabricated photovoltaic support system, comprising a sloping truss assembly spanning the roof of a house and columns located at the front and rear of the house for supporting the sloping truss assembly, wherein the sloping truss assembly has a sloping mounting surface, characterized in that, The diagonal truss assembly includes two parallel chords and several web members positioned between them. The web members include straight web members and diagonal web members. The upper and lower ends of the straight web members are perpendicularly connected to the two chords, while the upper and lower ends of the diagonal web members are obliquely connected to the two chords. Hinges are provided at the joints where the web members connect to the chords. Each hinge includes a vertically connected base plate and a side plate. The base plate is bolted to the chords, and the side plates are bolted to the web members. The top of each column has an inclined support seat with the same inclination angle as the lower chord. The support seat has a U-shaped structure, with the lower chord located within it and bolted to the support seat.

2. The prefabricated photovoltaic support system for courtyards according to claim 1, characterized in that, The support base has fastening holes on both sides, and the lower chord has fixing holes. Bolts pass through the fastening holes and fixing holes laterally to fix the lower chord to the support base.

3. A prefabricated photovoltaic support system for courtyards according to claim 2, characterized in that, The inner bottom wall of the support base is provided with a concave-convex positioning structure between the bottom wall and the bottom surface of the lower chord.

4. A prefabricated photovoltaic support system for courtyards according to claim 2, characterized in that, The column is a square tube, and the top of the column is provided with a slanted port. A sealing element is provided at the slanted port, and the bottom of the support base is fixed to the sealing element.

5. A prefabricated photovoltaic support system for courtyards according to claim 1, characterized in that, The chord members and web members are made of U-steel.

6. A prefabricated photovoltaic support system for courtyards according to claim 1, characterized in that, The hinge and support are sheet metal parts.

7. A prefabricated photovoltaic support system for courtyards according to claim 1, characterized in that, A diagonal brace is provided between the column and the lower chord.

8. A prefabricated photovoltaic support system for courtyards according to claim 1, characterized in that, A transverse support rod is provided between the lower chords of two adjacent diagonal truss components.

9. A prefabricated photovoltaic support system for courtyards according to claim 1, characterized in that, A horizontal reinforcing strut is provided between two adjacent horizontal columns; and / or, a diagonal reinforcing strut is provided between the two outermost horizontal columns.

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