Photovoltaic support

Abstract

This utility model belongs to the field of photovoltaic support technology, specifically relating to a photovoltaic support system designed to ensure structural stability under complex mountainous terrain and weather conditions. Specifically, concrete is poured into the inner cavities of the upper and lower columns to form a concrete core. This core connects the connectors, upper and lower columns, concrete core, and concrete piles to form an integrated structure, improving the overall rigidity of the columns and reinforcing weakened sections. The integrated structure formed by the connectors, upper and lower columns, concrete core, and concrete piles, along with the combined action of at least two sets of diagonal bracing components, constitutes a stable load-bearing system. The load borne by the photovoltaic modules is effectively transferred to the concrete piles, ensuring the structural stability of the photovoltaic support system under complex mountainous terrain and weather conditions.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic support technology, and specifically relates to a photovoltaic support. Background Technology

[0002] Photovoltaic power generation is a technology that directly converts light energy into electrical energy using the photovoltaic effect at the semiconductor interface. It has advantages such as safety, reliability, no noise, low pollution, and no need for fuel consumption. As a commonly used core support component in photovoltaic power plants, the structural stability of photovoltaic brackets directly affects the power generation efficiency and service life of photovoltaic modules.

[0003] The existing photovoltaic (PV) support system includes purlins, diagonal beams, columns, front diagonal braces, rear diagonal braces, and clamps. Purlins are located above the diagonal beams. The purlins are horizontally positioned, their length perpendicular to the length of the diagonal beams. PV panels are connected to the purlins, and the purlins are connected to the diagonal beams via L-shaped purlin brackets. There are at least two diagonal beams and purlins; at least two diagonal beams are arranged horizontally, spaced apart, and at least two purlins are arranged horizontally, spaced apart. The columns include an upper column and a lower column arranged coaxially. The upper end of the upper column is connected to the diagonal beam via a connector. The upper column includes an upper and lower mounting section and a first insertion section. The lower column includes an upper and lower second insertion section and a pre-embedded section. The first insertion section of the upper column and the second insertion section of the lower column are interlocked and connected by tie bolts. The pre-embedded section of the lower column is embedded in a concrete pile. Both the upper and lower columns are made of hollow steel pipes. The clamp is installed on the mounting section of the upper column, with a gap between it and the upper end of the upper column. Both the front and rear diagonal braces are located between the diagonal beam and the column; the upper ends of both braces are connected to the diagonal beam, and the lower ends are connected to the clamp. The front diagonal brace is located on the side corresponding to the lower end of the column and the diagonal beam. The rear diagonal brace is located on the side corresponding to the upper end of the column and the diagonal beam.

[0004] Existing photovoltaic (PV) support systems can ensure good structural performance on flat terrain. However, in mountainous PV projects, due to the complexity of the terrain, such as large slope undulations, significant differences in foundation flatness, limitations in installation accuracy, and differences in construction techniques, existing single-column fixed PV support systems exhibit the following technical shortcomings:

[0005] First, in mountainous terrain and weather conditions, the wind pressure distribution acting on the surface of photovoltaic modules is uneven, and stress concentration easily occurs at the joints between the diagonal braces and the columns, leading to loosening, deformation, or even slippage. Simultaneously, the failure of any component, such as the diagonal brace, connector, or clamp, can trigger a chain reaction of damage to the entire photovoltaic support system fixed to a single column. Therefore, high requirements are placed on the strength of component materials, connection precision, and installation techniques.

[0006] Secondly, the use of hollow steel pipes to connect the upper and lower columns with bolts to form the columns has the following drawbacks: First, insufficient rigidity, which easily leads to lateral deflection under horizontal loads, causing the top displacement of the column to exceed the limit, and thus causing the tilt angle of the inclined beam to shift; second, limited shear resistance, the part of the lower column extending above the concrete pile is prone to fracture due to excessive horizontal shear force, seriously threatening the overall safety of the single-column fixed photovoltaic support; third, the hollow steel pipes used for the upper and lower columns are usually thin-walled steel pipes, and due to the influence of the production process, the pipe wall thickness often has a negative deviation, that is, the actual thickness of the pipe wall is lower than the design value, further weakening the structural bearing capacity; in addition, the upper end of the upper column inevitably needs to be drilled with holes due to the needs of connecting parts installation, which weakens the cross section and concentrates stress around the holes, causing the local actual stress to far exceed the design allowable value, greatly increasing the risk of early cracking. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a photovoltaic support structure to ensure the structural stability of the photovoltaic support structure under complex mountainous terrain and weather conditions.

[0008] The technical solution adopted by this utility model to solve its technical problem is: a photovoltaic bracket, including purlins, inclined beams, columns and inclined bracing installation components;

[0009] The purlin is located above the inclined beam; the purlin is horizontally arranged and its length direction is perpendicular to the length direction of the inclined beam; the purlin and the inclined beam are connected by an L-shaped purlin bracket; there are at least two inclined beams and at least two purlins, the at least two inclined beams are arranged in pairs along the horizontal direction, and the at least two purlins are arranged in pairs along the length direction of the inclined beams;

[0010] The column comprises an upper column and a lower column arranged coaxially; the upper end of the upper column is connected to the inclined beam via a connector; the upper column includes an installation section and a first insertion section arranged vertically, and the lower column includes a second insertion section and a pre-embedded section arranged vertically; the first insertion section of the upper column and the second insertion section of the lower column are inserted into each other and connected by tie bolts; the pre-embedded section of the lower column is embedded in a concrete pile; both the upper and lower columns are hollow tubular structures, and the cavities of both the upper and lower columns are filled with concrete cores, so that the connector, the upper column, the lower column, the concrete core, and the concrete pile are connected to form an integral structure;

[0011] The diagonal bracing installation assembly includes a clamp, a front diagonal brace, and a rear diagonal brace; the clamp is installed on the installation section of the upper column and has a gap from the upper end of the upper column; the front diagonal brace and the rear diagonal brace are both arranged between the diagonal beam and the column, the upper ends of the front diagonal brace and the rear diagonal brace are connected to the diagonal beam, and the lower ends of the front diagonal brace and the rear diagonal brace are connected to the clamp; the diagonal bracing installation assembly is provided in at least two sets, and the at least two sets of the diagonal bracing installation assembly are arranged at intervals along the vertical direction.

[0012] Furthermore, the lower column also includes a grouting operation section, which is located between the second insertion section and the pre-embedded section;

[0013] The lower column is provided with a grouting hole that communicates with its own internal cavity, and the grouting hole is located in the grouting operation section.

[0014] Furthermore, the upper end of the front diagonal brace is connected to the diagonal beam via a first connecting bolt, and the upper end of the rear diagonal brace is connected to the diagonal beam via a second connecting bolt.

[0015] Furthermore, it also includes a first adjustment hole and a second adjustment hole provided on the inclined beam; multiple first adjustment holes and a second adjustment hole are provided along the length direction of the inclined beam; the first connecting bolt is installed through the first adjustment hole, and the second connecting bolt is installed through the second adjustment hole.

[0016] Furthermore, the lower end of the front diagonal brace is connected to one pair of ear plates of the clamp, and the lower end of the rear diagonal brace is connected to the other pair of ear plates of the clamp via a third connecting bolt.

[0017] Furthermore, the upper column is made of steel.

[0018] Furthermore, the clamp is welded to the upper column.

[0019] Furthermore, the diagonal brace mounting assembly is provided in two sets; the length direction of the front diagonal brace in one set of the diagonal brace mounting assembly is parallel to the length direction of the front diagonal brace in the other set of the diagonal brace mounting assembly.

[0020] In another set of the diagonal bracing assembly, the length direction of the rear diagonal brace is parallel to the length direction of the rear diagonal brace in the other set of the diagonal bracing assembly;

[0021] In both sets of the aforementioned diagonal brace mounting assemblies, the axis of the front diagonal brace and the axis of the rear diagonal brace are located in the same vertical plane.

[0022] Furthermore, the upper column, lower column, front diagonal brace, and rear diagonal brace are all round steel pipes, and the diagonal beam is a rolled-edge channel steel.

[0023] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model provides a photovoltaic support system to ensure the structural stability of the photovoltaic support system under complex mountainous terrain and weather conditions. Specifically, by pouring concrete into the inner cavities of the upper and lower columns to form a concrete core, the connectors, upper and lower columns, concrete core, and concrete piles are connected to form an integral structure, thereby improving the overall rigidity of the columns and reinforcing weakened sections. The integral structure formed by the connectors, upper and lower columns, concrete core, and concrete piles, along with the combined action of at least two sets of diagonal bracing components, constitutes a stable force-bearing system. The load borne by the photovoltaic modules can be effectively transferred to the concrete piles, thus ensuring the structural stability of the photovoltaic support system under complex mountainous terrain and weather conditions. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 yes Figure 1 Enlarged view of part A in the image;

[0026] Figure 3 yes Figure 1 Enlarged view of part B in the image;

[0027] Figure 4 yes Figure 1 Enlarged view of section C in the image;

[0028] Reference numerals: 1-Photovoltaic panel assembly; 2-Purlin; 3-Inclined beam; 301-First adjustment hole; 302-Second adjustment hole; 4-Column; 401-Upper column; 4011-Installation section; 4012-First insertion section; 402-Lower column; 4021-Second insertion section; 4022-Embedded section; 4023-Grouting operation section; 403-Grouting hole; 404-Tie bolt; 405-Concrete core; 5-Inclined brace installation assembly; 501-Clamping clamp; 502-Front inclined brace; 503-Rear inclined brace; 6-L-shaped purlin bracket; 7-Connector; 8-Concrete pile; 9-First connecting bolt; 10-Second connecting bolt; 11-Third connecting bolt. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] The photovoltaic support system includes purlins 2, diagonal beams 3, columns 4, and diagonal bracing installation components 5;

[0031] The purlin 2 is located above the inclined beam 3; the purlin 2 is horizontally arranged, and its length direction is perpendicular to the length direction of the inclined beam 3; the purlin 2 and the inclined beam 3 are connected by an L-shaped purlin bracket 6; both the inclined beam 3 and the purlin 2 are provided with at least two, the at least two inclined beams 3 are arranged in pairs along the horizontal direction, and the at least two purlins 2 are arranged in pairs along the length direction of the inclined beam 3;

[0032] The column 4 includes an upper column 401 and a lower column 402 arranged coaxially. The upper end of the upper column 401 is connected to the inclined beam 3 via a connector 7. The upper column 401 includes an installation section 4011 and a first insertion section 4012 arranged vertically. The lower column 402 includes a second insertion section 4021 and a pre-embedded section 4022 arranged vertically. The first insertion section 4012 of the upper column 401 and the second insertion section 4021 of the lower column 402 are inserted and connected by tie bolts 404. The pre-embedded section 4022 of the lower column 402 is pre-embedded in the concrete pile 8. Both the upper column 401 and the lower column 402 are hollow tubular structures. The cavities of both the upper column 401 and the lower column 402 are filled with concrete cores 405, so that the connector 7, the concrete cores 405, and the concrete pile 8 are connected to form an integral structure.

[0033] The diagonal brace mounting assembly 5 includes a clamp 501, a front diagonal brace 502, and a rear diagonal brace 503; the clamp 501 is installed on the mounting section 4011 of the upper column 401 and has a gap with the upper end of the upper column 401; the front diagonal brace 502 and the rear diagonal brace 503 are both arranged between the diagonal beam 3 and the column 4, the upper ends of the front diagonal brace 502 and the rear diagonal brace 503 are connected to the diagonal beam 3, and the lower ends of the front diagonal brace 502 and the rear diagonal brace 503 are connected to the clamp 501; the diagonal brace mounting assembly 5 is provided in at least two sets, and the at least two sets of the diagonal brace mounting assembly 5 are arranged in pairs along the vertical direction.

[0034] The connection between the photovoltaic panel module 1 and the purlin 2 is prior art, and this application does not involve any improvement to the connection method between the photovoltaic panel module 1 and the purlin 2. The connector 7 is also prior art, and the corner connector disclosed in the authorization announcement number CN20389626U can be used to achieve the connection between the photovoltaic panel module 1 and the purlin 2.

[0035] Concrete is poured into the inner cavities of the upper column 401 and lower column 402 to form a concrete core 405. This connects the connector 7, upper column 401, lower column 402, concrete core 405, and concrete pile 8 to form an integral structure, thereby improving the overall rigidity of the column 4 and reinforcing weakened sections. The integral structure formed by the connector 7, upper column 401, lower column 402, concrete core 405, and concrete pile 8, along with the combined action of at least two sets of diagonal bracing components 5, constitutes a stable load-bearing system. The load borne by the photovoltaic module 1 can be effectively transferred to the concrete pile 8, ensuring the structural stability of the photovoltaic support under complex mountainous terrain and weather conditions.

[0036] The number of tie bolts 404 can be set according to the actual working conditions. Preferably, there are multiple tie bolts 404, which are arranged alternately in space.

[0037] Concrete grout can be injected through the upper opening of the upper column 401, but this method is prone to problems such as air bubbles and uneven distribution. Preferably, the lower column 402 further includes a grouting operation section 4023, which is located between the second insertion section 4021 and the pre-embedded section 4022. The lower column 402 has a grouting hole 403 that communicates with its own internal cavity, and the grouting hole 403 is located in the grouting operation section 4023. Concrete grout is injected under pressure through the grouting hole 403, and the concrete grout fills the internal cavities of the lower column 402 and the upper column 401 from bottom to top. Grouting stops when the concrete grout overflows from the upper opening of the upper column 401.

[0038] Preferably, the upper end of the front diagonal brace 502 is connected to the diagonal beam 3 by a first connecting bolt 9, and the upper end of the rear diagonal brace 503 is connected to the diagonal beam 3 by a second connecting bolt 10.

[0039] Preferably, the device further includes a first adjusting hole 301 and a second adjusting hole 302 disposed on the inclined beam 3; multiple first adjusting holes 301 and second adjusting holes 302 are provided along the length direction of the inclined beam 3; the first connecting bolt 9 is installed through the first adjusting hole 301, and the second connecting bolt 10 is installed through the second adjusting hole 302. The inclination of the front inclined brace 502 is adjusted by adjusting the installation position of the first connecting bolt 9. The inclination of the rear inclined brace 503 is adjusted by adjusting the installation position of the second connecting bolt 10.

[0040] The lower ends of the front diagonal brace 502 and the rear diagonal brace 503 can both be welded to the clamp 501. Preferably, the lower end of the front diagonal brace 502 is connected to one pair of lugs of the clamp 501, and the lower end of the rear diagonal brace 503 is connected to the other pair of lugs of the clamp 501 by the third connecting bolt 11.

[0041] The upper column 401 can be a cemented carbide product, such as a magnesium-aluminum alloy product. Preferably, the upper column 401 is a steel product.

[0042] To further improve the connection strength between the clamp 501 and the upper column 401, preferably, the clamp 501 and the upper column 401 are welded together.

[0043] Two sets of diagonal brace mounting components 5 can be provided. In one set, the length direction of the front diagonal brace 502 in one set can form an angle with the length direction of the front diagonal brace 502 in the other set, and the length direction of the rear diagonal brace 503 in the other set can also form an angle with the length direction of the rear diagonal brace 503 in the other set. Preferably, two sets of diagonal brace mounting components 5 are provided; in one set, the length direction of the front diagonal brace 502 in one set is parallel to the length direction of the front diagonal brace 502 in the other set, and the length direction of the rear diagonal brace 503 in the other set is parallel to the length direction of the rear diagonal brace 503 in the other set; the axes of the front diagonal brace 502 and the rear diagonal brace 503 in both sets of diagonal brace mounting components 5 are located in the same vertical plane.

[0044] As a further preferred embodiment, the upper column 401, lower column 402, front diagonal brace 502 and rear diagonal brace 503 are all round steel pipes, and the diagonal beam 3 is a rolled-edge channel steel.

[0045] The specific embodiments described are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. All equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. Photovoltaic mounting, characterized in that: Includes purlins (2), diagonal beams (3), columns (4), and diagonal bracing assembly (5); The purlin (2) is located above the inclined beam (3); the purlin (2) is horizontally arranged and its length direction is perpendicular to the length direction of the inclined beam (3); the purlin (2) and the inclined beam (3) are connected by an L-shaped purlin bracket (6); both the inclined beam (3) and the purlin (2) are provided with at least two, the at least two inclined beams (3) are arranged in pairs along the horizontal direction, and the at least two purlins (2) are arranged in pairs along the length direction of the inclined beam (3); The column (4) includes an upper column (401) and a lower column (402) arranged coaxially; the upper end of the upper column (401) is connected to the inclined beam (3) by a connector (7); the upper column (401) includes an installation section (4011) and a first insertion section (4012) arranged vertically, and the lower column (402) includes a second insertion section (4021) and a pre-embedded section (4022) arranged vertically; the first insertion section (4012) of the upper column (401) and the second insertion section (4012) of the lower column (402) 021) The two columns are connected by a plug-in joint and a tie bolt (404); the pre-embedded section (4022) of the lower column (402) is pre-embedded in the concrete pile (8); the upper column (401) and the lower column (402) are both hollow tubular structures, and the inner cavity of the upper column (401) and the lower column (402) is filled with a concrete core (405), so that the connector (7), the concrete core (405) of the upper column (401) and the lower column (402) are connected to the concrete pile (8) to form an integral structure; The diagonal bracing assembly (5) includes a clamp (501), a front diagonal brace (502), and a rear diagonal brace (503). The clamp (501) is installed on the installation section (4011) of the upper column (401) and has a gap with the upper end of the upper column (401). The front diagonal brace (502) and the rear diagonal brace (503) are both located between the diagonal beam (3) and the column (4). The upper ends of the front diagonal brace (502) and the rear diagonal brace (503) are connected to the diagonal beam (3), and the lower ends of the front diagonal brace (502) and the rear diagonal brace (503) are connected to the clamp (501). The diagonal bracing assembly (5) is provided in at least two sets, and the at least two sets of the diagonal bracing assembly (5) are arranged in pairs along the vertical direction.

2. The photovoltaic mount of claim 1, wherein: The lower column (402) also includes a grouting operation section (4023), which is located between the second insertion section (4021) and the pre-embedded section (4022); The lower column (402) is provided with a grouting hole (403) that communicates with its own inner cavity. The grouting hole (403) is located in the grouting operation section (4023).

3. The photovoltaic mount of claim 1, wherein: The upper end of the front diagonal brace (502) is connected to the diagonal beam (3) by the first connecting bolt (9), and the upper end of the rear diagonal brace (503) is connected to the diagonal beam (3) by the second connecting bolt (10).

4. The photovoltaic mount of claim 3, wherein: It also includes a first adjustment hole (301) and a second adjustment hole (302) provided on the inclined beam (3); the first adjustment hole (301) and the second adjustment hole (302) are provided in multiples along the length direction of the inclined beam (3); the first connecting bolt (9) is installed through the first adjustment hole (301) and the second connecting bolt (10) is installed through the second adjustment hole (302).

5. The photovoltaic mount of claim 1, wherein: The lower end of the front diagonal brace (502) is connected to one pair of ear plates of the clamp (501), and the lower end of the rear diagonal brace (503) is connected to the other pair of ear plates of the clamp (501) by a third connecting bolt (11).

6. The photovoltaic mount of claim 1, wherein: The upper column (401) is made of steel.

7. The photovoltaic mount of claim 1, wherein: The clamp (501) is welded to the upper column (401).

8. The photovoltaic mount of claim 1, wherein: The diagonal brace mounting assembly (5) is provided in two sets; The length direction of the front diagonal brace (502) in one set of the diagonal brace mounting assemblies (5) is parallel to the length direction of the front diagonal brace (502) in the other set of the diagonal brace mounting assemblies (5); The length direction of the rear diagonal brace (503) in the other set of diagonal brace mounting components (5) is parallel to the length direction of the rear diagonal brace (503) in the other set of diagonal brace mounting components (5); In the two sets of diagonal bracing installation assemblies (5), the axis of the front diagonal brace (502) and the axis of the rear diagonal brace (503) are both located in the same vertical plane.

9. The photovoltaic mount of claim 1, wherein: The upper column (401), lower column (402), front diagonal brace (502) and rear diagonal brace (503) are all round steel pipes, and the diagonal beam (3) is a rolled-edge channel steel.

Images