CN113241998B - Prestressed flexible photovoltaic fixing support - Google Patents

Abstract

The invention relates to a prestress flexible photovoltaic fixing bracket, which comprises at least two rows of photovoltaic brackets; each row of photovoltaic support comprises at least one group of end stand columns, the end stand columns stretch two flexible steel cables in the length direction of the steel cables, the two steel cables form a high-low structure, solar panels can be installed on the two steel cables, the steel cables are prestressed galvanized steel strands, and a reinforcing connection structure is arranged between the middle stand columns of the adjacent photovoltaic support so as to improve the bearing capacity and the overall stability of the middle stand columns in the row width direction. The prestress flexible photovoltaic fixing bracket has the advantages of simple structure, less upright posts and foundations, shortened construction period, reduced construction cost and meeting the safety use requirements under various working conditions.

Description

A kind of prestressed flexible photovoltaic fixed bracket

Technical field

The invention relates to the field of photovoltaics, and in particular to a prestressed flexible photovoltaic fixing bracket.

Background technique

For the existing photovoltaic bracket structure, please refer to the prior patent, patent number: 201921473472, patent name: a support column structure and a flexible cable bracket.

In this patent, it is introduced that multiple solar panels in each row are installed on two load-bearing steel cables. In order to enable the solar panels to be tilted, the two steel cables in each row need to rely on two end supports. and multiple middle support frames for support. In the past, the end support frame used two high-end columns and low-end columns. One load-bearing steel cable connected the high-end column, and the other load-bearing steel cable connected the low-end column; at the same time, the high-end column It needs to be pulled through two diagonal tie rods, one is the main heavy diagonal tie rod and the other is the light diagonal tie rod. Similarly, the low-end column is also pulled through the main heavy diagonal tie rod and the light diagonal tie rod. The connection between the high-end columns and the ground requires embedded parts, and the connection between the diagonal rods and the ground also requires embedded parts. It can be seen that in the past end supports, six ground embedded parts were required on one side of each row of photovoltaic brackets (the high-end columns were embedded parts, low-end column embedded parts, two main heavy inclined tie rod embedded parts, two light inclined tie rod embedded parts), resulting in the previous construction of photovoltaic brackets. The two end support frames have a complex structure, many parts, and a long construction period. It is long, costly and inflexible in layout. Moreover, too many diagonal tie rods affect workers’ walking and maintenance of photovoltaic supports.

For the middle support frame, it relies on triangular columns for support. The bottom of the triangular column is hinged with the hinge support, so that the triangular column can swing. The length-adjustable diagonal tie rods are used on both sides of the triangular column for tightening. By adjusting the two diagonal rods, The length of the tie rod is used to adjust the inclination angle of the triangular column, so that the middle parts of the two load-bearing steel cables also maintain a corresponding inclination angle. It can be seen that in the past, the middle support frame required a combination of a triangular column + two adjustable diagonal tie rods. This combination required three foundation embedded parts. It also had complex structures, many parts, long construction period, and high costs.

Moreover, each row of photovoltaics is independent of each other, and there is a lack of connection between rows, resulting in a low overall impact resistance of the photovoltaic bracket.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a prestressed flexible photovoltaic fixing bracket to solve the problems of complex structure, long construction period and inflexible arrangement of photovoltaic brackets in the past.

The technical solutions adopted by the present invention to solve the technical problems are:

A prestressed flexible photovoltaic fixing bracket is provided, which is characterized in that it includes at least two rows of photovoltaic brackets;

Each row of photovoltaic supports includes at least one set of end columns;

The end column pulls two flexible steel cables in the length direction of the steel cables. The two steel cables form a high and low structure. Solar panels can be installed on the two steel cables. The steel cables are prestressed galvanized steel strands.

The photovoltaic bracket also includes a middle column, and a reinforced connection structure is provided between the middle columns of adjacent photovoltaic brackets to improve the bearing capacity and stability of the middle column in the row width direction.

Further, the reinforced connection structure includes a cross bar and two cable-stayed steel strands, and the cross bar is connected between an intermediate column and another adjacent intermediate column,

Two cable-stayed steel strands are connected in an "X" shape between one middle column and another adjacent middle column.

Further, the cross bar is a rigid cross bar, the upper end of the column body of the middle column has a cross bar connecting plate, and the two ends of the cross bar are respectively installed and fixed with the corresponding cross bar connecting plate of the middle column;

The cable-stayed steel strand is a flexible stay rope, the upper end of the cable-stayed steel strand is fixed to the upper part of the middle column, and the lower end of the cable-stayed steel strand is fixed to the lower base of another adjacent middle column.

Further, the method of fixing the cable-stayed steel strand to the upper and/or lower foundation of the middle column is: the ends of the cable-stayed steel strand and the upper and/or lower foundation of the middle column can be connected through flower basket bolts. Adjustable connections or adjustable connections via adjustable components;

The adjustable component includes a U-shaped pipe fitting. The open end of the U-shaped pipe fitting is inserted into the connecting block. The pull cord is fixed by the limit nut after passing through the pull cord hole in the middle of the connecting block. The connecting block is moved to make it in the U shape. The connecting block is fixed by the locking nut after the pipe fitting is in the desired position.

Further, the middle column includes a hinge support, a column body and a middle beam;

The lower end of the column body is hingedly connected to the hinge support, so that the column body can swing on the hinge support along the length of the steel cable to balance the unbalanced force generated by the external load;

An intermediate beam is provided at the upper end of the column body, and the intermediate beam is inclined at the upper end of the column body;

Both ends of the middle beam are provided with locking assemblies for locking steel cables;

The locking assembly includes a lock bottom plate and two U-shaped bolts. The lock bottom plate is fixedly connected to the middle beam. The U-shaped bolts are arranged on both sides of the lock bottom plate. The steel cable passes between the U-shaped bolts and the lock bottom plate. , and is locked on the lock bottom plate by a U-shaped bolt.

Alternatively, the locking assembly is a U-shaped installation piece fixedly installed with the cross beam.

Further, the middle crossbeam is fixedly connected to the column body. A first diagonal brace and a second diagonal brace are provided between the middle crossbeam and the column body. The middle crossbeam is connected to the first diagonal brace and the second diagonal brace. The rods form a triangular structure.

Further, the end columns include:

The end column body is provided with a connecting support at the upper end of the end column body, and the top surface of the connecting support forms an inclined mounting surface;

The end beam is fixedly installed on the inclined mounting surface of the connection support, and the two ends of the end beam are used to pull two steel cables respectively.

Further, the structure of the end beam pulling the steel cable is: steel cable perforations are provided at both ends of the end beam, and the steel cable passes through the steel cable perforations and is fixed.

Alternatively, both ends of the end beam are provided with reinforcing plates, the reinforcing plates are provided with steel cable perforations, and the steel cables are fixed after passing through the steel cable perforations.

Further, the prestressed flexible photovoltaic fixing bracket also includes two cable-stayed components, the upper ends of the two cable-stayed components are respectively connected to both ends of the end beam, and the lower ends of the two cable-stayed components are connected to the end foundation respectively.

Further, the cable-stayed assembly includes a pull rod, the upper end of the pull rod is connected to the upper bracket plate on the end beam through an adjustable assembly, and the lower end of the stay rope is connected to the lower support on the foundation through the adjustable assembly;

The adjustable component includes a U-shaped pipe fitting. The open end of the U-shaped pipe fitting is inserted into the connecting block. The pull cord is fixed by the limit nut after passing through the pull cord hole in the middle of the connecting block. The connecting block is moved to make it in the U shape. The connecting block is fixed by the locking nut after the pipe fitting is in the desired position.

The beneficial effects of the present invention are:

The prestressed flexible photovoltaic fixed bracket of the present invention has a simple structure, clear stress and simple construction, shortens the construction period, reduces the construction cost, and improves the flexibility of the arrangement of the photovoltaic bracket.

The beams on the end columns are directly tilted, eliminating the need to build two high and low end columns as in the past. The end column structure is stable and reliable, and the two steel cables can be pulled stably and reliably at the ends of the photovoltaic bracket.

For a single middle column, the cross beam is directly tilted and fixed on the column body. The column body and the hinge support can be directly hinged on site. The construction is convenient and the construction period of the photovoltaic bracket is shortened.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Figure 1 is a schematic diagram of the prestressed flexible photovoltaic fixing bracket of the present invention;

Figure 2 is a schematic diagram of the reinforcement structure between rows;

Figure 3 is a schematic diagram of the strengthening structure (connecting steel cables) between rows;

Figure 4 is a schematic diagram of the swing mechanism (connected to the middle foundation column) for the photovoltaic bracket;

Figure 5 is a schematic diagram of the swing mechanism for photovoltaic brackets;

Figure 6 is a schematic diagram of the locking assembly;

Figure 7 is a schematic diagram of the photovoltaic bracket using a swing mechanism to connect the steel cable;

Figure 8 is a schematic diagram of the end column;

Figure 9 is a schematic diagram of the steel cable pulling structure;

Figure 10 is a schematic diagram of the steel cable pulling structure connecting the steel cables;

Figure 11 is a schematic diagram of the adjustable components;

Figure 12 is a schematic diagram of the installation of the U-shaped mounting piece and the middle beam;

in,

1. Steel rope;

2. End column, 21. End column body, 22. End beam, 221. Steel cable perforation, 23. Connection support, 24. Upper bracket plate, 25. Adjustable component, 251. U-shaped pipe fitting, 252. Connection block , 26. Pull rope, 27. Lower support, 28. Reinforcement plate;

3. Middle column, 31. Column body, 311. Column body, 312. Hinge plate, 313. Support plate, 32. Middle beam; 33. First diagonal brace, 34. Second diagonal brace;

4. Locking component, 41. Lock bottom plate, 42. U-shaped bolt; 43. U-shaped mounting piece;

5. Hinge support, 51. Intermediate foundation column;

61. Cross bar, 62. Cable-stayed steel strand, 63. Flower basket bolts.

Detailed ways

The present invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the structures related to the present invention.

As shown in Figures 1 to 11, a prestressed flexible photovoltaic fixing bracket includes at least two rows of photovoltaic brackets;

Each row of photovoltaic supports includes at least a set of end columns 2 and a middle column 3; a set of end columns 2 includes two end columns, and the two end columns are arranged at the two ends of each row of photovoltaic supports.

The end column 2 pulls two flexible steel cables 1 in the length direction of the steel cable 1. The two steel cables 1 form a high-low structure, and solar panels can be installed on the two steel cables 1. Steel cable 1 is a prestressed galvanized steel strand.

A reinforced connection structure is provided between the middle columns 3 of adjacent photovoltaic supports to improve the impact resistance of the middle columns 3 in the row width direction.

In this embodiment, each row of photovoltaic fixing brackets includes two end columns 2 and two middle columns 3 .

Specifically, as an optional implementation in this embodiment, as shown in Figures 2 and 3, the reinforced connection structure includes a cross bar 61 and two cable-stayed steel strands 62. The cross bar 61 Connected between one middle column 3 and another adjacent middle column 3, two cable-stayed steel strands 62 are connected in an "X" shape between one middle column 3 and another adjacent middle column 3. .

Specifically, as an optional implementation in this embodiment, the cross bar 61 is a rigid cross bar. The upper end of the column body 31 of the middle column 3 has a cross bar connecting plate. The two ends of the cross bar 61 are respectively Install and fix with the cross-bar connecting plate of the corresponding middle column 3;

The cable-stayed steel strand 62 is a flexible stay rope 26. The upper end of the cable-stayed steel strand 62 is fixed to the upper part of the middle column 3. The lower end of the cable-stayed steel strand 62 is connected to another adjacent middle column 3. The lower foundation is fixed.

Specifically, as an optional implementation in this embodiment, the way in which the cable-stayed steel strand 62 is fixed to the upper and/or lower foundation of the middle column 3 is: the end of the cable-stayed steel strand 62 The upper and/or lower foundation of the middle column 3 is adjustably connected through the flower basket bolt member 63 or through the adjustable assembly 25;

The adjustable component 25 includes a U-shaped pipe 251. The open end of the U-shaped pipe 251 is inserted into the connecting block 252. The pull cord 26 passes through the pull cord hole in the middle of the connection block 252 and is fixed by a limit nut. Move the connection After the block 252 is in the desired position of the U-shaped pipe 251, the connecting block 252 is fixed by the locking nut.

Specifically, as an optional implementation in this embodiment, as shown in Figures 4, 5, and 7, the middle column 3 includes a hinge support 5, a column body 31, and a middle beam 32; the column body 31 is made of industrial beams or beams of other cross-sections.

The lower end of the column body 31 is hinged with the hinge support 5, so that the column body 31 can swing on the hinge support 5 along the length direction of the steel cable 1;

An intermediate beam 32 is provided at the upper end of the column body 31, and the intermediate beam 32 is inclined at the upper end of the column body 31;

Both ends of the middle beam 32 are provided with locking assemblies 4 for locking the steel cable 1;

As shown in Figure 6, the locking assembly 4 includes a lock bottom plate 41 and two U-shaped bolts 42. The lock bottom plate 41 is fixedly connected to the middle beam 32, and the U-shaped bolts 42 are provided on both sides of the lock bottom plate 41. The steel cable 1 passes between the U-shaped bolt 42 and the lock bottom plate 41 and is locked on the lock bottom plate 41 by the U-shaped bolt 42 .

Specifically, as an optional implementation in this embodiment, as shown in Figure 12, the locking component 4 is a U-shaped installation part 43 fixedly installed with the cross beam 32, and the steel cable 1 is connected to the U-shaped installation part from the U-shaped installation part 43. The cross beams 32 pass between the top surfaces.

Specifically, as an optional implementation in this embodiment, as shown in Figures 4 and 5, the middle crossbeam 32 is fixedly connected to the column body 31, and a first beam is disposed between the middle crossbeam 32 and the column body 31. The diagonal strut 33 and the second diagonal strut 34, the middle cross beam 32 and the first diagonal strut 33 and the second diagonal strut 34 form a triangular structure.

Specifically, in this embodiment, a pre-embedded intermediate foundation column 51 is provided at the bottom of the hinge support 5 , and the bottom of the hinge support 5 is fixedly connected to the intermediate foundation column 51 . Specifically, the hinge support 5 is fixed on the column base of the intermediate foundation column 51 through bolts.

In this embodiment, the middle foundation column 51 is provided with a hoop, and the cable-stayed steel strand 62 is connected to the hoop, so that the cable-stayed steel strand 62 is connected to the middle foundation column 51 , that is, fixed to the lower foundation of the middle column 3 .

The column body 31 includes a column part 311 and a hinge part. The column part 311 is in the form of a single column. The single column form has a simple structure and does not occupy the space under the steel cable, making it easier for workers to walk for maintenance.

The hinge portion of the column body 31 has a hinge plate 312 , and the hinge plate 312 is hinged with the hinge support 5 .

A support plate 313 is provided between the hinge plate 312 and the column portion 311 . The support plate 313, the hinge plate 312, and the column part 311 are connected and fixed by welding to improve the bottom strength of the column body.

Specifically, as an optional implementation in this embodiment, as shown in Figures 8, 9, and 10, the end column 2 includes:

End column body, the upper end of the end column body is provided with a connecting support 23, and the top surface of the connecting support 23 forms an inclined mounting surface;

The end beam 22 is fixedly arranged on the inclined installation surface of the connecting support 23. The two ends of the end beam 22 are used to pull the two steel cables 1 respectively.

Specifically, as an optional implementation in this embodiment, the structure of the end beam 22 pulling the steel cable 1 is: steel cable perforations 221 are provided at both ends of the end beam 22, and the steel cable 1 passes through The steel cable is fixed after perforation 221;

Alternatively, the end beam 22 is provided with reinforcing plates 28 at both ends. The reinforcing plate 28 is provided with a steel cable through hole 221, and the steel cable 1 is fixed after passing through the steel cable through hole 221.

The reinforcing plate 28 exists as a backing plate. The end of the steel cable 1 is connected to the anchor, and the anchor is in contact with the reinforcing plate 28 to reduce the local pressure on the cross beam.

Specifically, as an optional implementation in this embodiment, the prestressed flexible photovoltaic fixing bracket also includes two cable-stayed components, the upper ends of the two cable-stayed components are respectively connected to both ends of the end beam 22, and two The lower ends of the cable-stayed components are respectively connected to the ground.

Specifically, as an optional implementation in this embodiment, the inclined pull assembly includes a pull cord 26, and the upper end of the pull cord 26 is connected to the upper bracket plate 24 on the end beam 22 through an adjustable assembly 25, so The lower end of the pull rope 26 is connected to the lower support 27 on the ground through an adjustable assembly 25;

As shown in Figure 11, the adjustable assembly 25 includes a U-shaped pipe 251. The open end of the U-shaped pipe 251 is inserted into the connecting block 252. The drawstring 26 passes through the drawstring hole in the middle of the connecting block 252 and is fixed by a limit nut. , move the connecting block 252 to the required position of the U-shaped pipe fitting 251, and then fix the connecting block 252 with the locking nut.

When constructing the photovoltaic fixed bracket of the present invention, pre-embedded foundation columns are built at both ends, and then the end columns 2 are installed. The end beams 22 on the end columns 2 are tilted, and the end beams 22 are connected to the ground through two cable-stayed assemblies. Pull; build the middle foundation column 51 in the middle position, install the middle column 3 vertically, and set the connection and strengthening connection structure between the middle columns 3 between two adjacent rows to improve the impact resistance between rows.

Next, thread the steel cable 1: Thread the steel cable 1 between the end column 2 and the middle column 3. The locking assembly 4 fixes the steel cable 1 and the middle beam 32. The end of the steel cable 1 is fixedly connected to the end beam 22. , after the steel cables 1 are installed, fix the solar panels on the two steel cables 1. Since the end beams 22 and the middle beam 32 are arranged at an angle, the installed solar panels are arranged in an inclined manner.

Compared with previous brackets, the entire photovoltaic fixed bracket reduces the number of embedded parts on the ground, reduces the construction period and costs, and improves the connection strength between rows, improving the impact resistance and harshness of the entire photovoltaic fixed bracket. climate capabilities.

Taking the above-mentioned ideal embodiments of the present invention as inspiration and through the above description, relevant workers can make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the description, and must be determined based on the scope of the claims.

Claims (7)

1. A prestressed flexible photovoltaic fixing bracket, characterized in that it includes at least two rows of photovoltaic brackets; Each row of photovoltaic supports includes at least one set of end columns (2); The end column (2) pulls two flexible steel cables (1) in the length direction of the steel cable (1). The two steel cables (1) form a high-low structure. Solar panels can be installed on the two steel cables (1). ; The photovoltaic bracket also includes a middle column (3), and a reinforced connection structure is provided between the middle columns (3) of adjacent photovoltaic brackets to improve the bearing capacity and stability of the middle column (3) in the row width direction; The reinforced connection structure between the middle columns (3) of adjacent photovoltaic supports includes a cross bar (61) and two cable-stayed steel strands (62). The cross bar (61) is connected to a middle column ( 3) and another adjacent middle column (3); Two cable-stayed steel strands (62) are connected in an "X" shape between one middle column (3) and another adjacent middle column (3); The crossbar (61) is a rigid crossbar. The upper end of the column body (31) of the middle column (3) has a crossbar connecting plate. Both ends of the crossbar (61) are connected to the corresponding middle column (3). The crossbar connecting plate is installed and fixed; The cable-stayed steel strand (62) is a flexible stay rope (26). The upper end of the cable-stayed steel strand (62) is fixed to the upper part of the middle column (3). The cable-stayed steel strand (62) The lower end is fixed to the lower foundation of another adjacent middle column (3); The middle column (3) includes a hinge support (5), a column body (31) and a middle beam (32); The lower end of the column body (31) is hingedly connected to the hinge support (5), so that the column body (31) can swing on the hinge support (5) along the length direction of the steel cable (1). 2. The inter-row reinforcement structure of the photovoltaic bracket according to claim 1, characterized in that the method of fixing the cable-stayed steel strand (62) to the upper and/or lower foundation of the middle column (3) is: The end of the cable-stayed steel strand (62) is adjustably connected to the upper and/or lower foundation of the middle column (3) through a flower basket bolt (63) or an adjustable assembly (25); The adjustable component (25) includes a U-shaped pipe (251), the open end of the U-shaped pipe (251) is inserted into the connecting block (252), and the drawstring (26) passes through the drawstring hole in the middle of the connecting block (252). Then it is fixed by the limit nut. After moving the connecting block (252) to the required position of the U-shaped pipe fitting (251), the connecting block (252) is fixed by the locking nut. 3. A prestressed flexible photovoltaic fixing bracket according to claim 1, characterized in that, An intermediate beam (32) is provided at the upper end of the column body (31), and the intermediate beam (32) is inclined at the upper end of the column body (31); Both ends of the middle beam (32) are provided with locking assemblies (4) for locking the steel cables (1); The locking assembly (4) includes a locking bottom plate (41) and two U-shaped bolts (42). The locking bottom plate (41) is fixedly connected to the middle beam (32), and the U-shaped bolts (42) are arranged on On both sides of the lock bottom plate (41), the steel cable (1) passes between the U-shaped bolt (42) and the lock bottom plate (41), and is locked on the lock bottom plate (41) by the U-shaped bolt (42); Alternatively, the locking assembly (4) is a U-shaped installation piece fixedly installed with the cross beam (32). 4. A prestressed flexible photovoltaic fixing bracket according to claim 3, characterized in that the middle cross beam (32) is fixedly connected to the column body (31), and the middle cross beam (32) is fixedly connected to the column body (31). ) are arranged between the first diagonal strut (33) and the second diagonal strut (34). The middle cross beam (32) forms a triangular structure with the first diagonal strut (33) and the second diagonal strut (34). . 5. A prestressed flexible photovoltaic fixing bracket according to claim 1, characterized in that the end column (2) includes: End column body (21), the upper end of the end column body (21) is provided with a connection support (23), and the top surface of the connection support (23) forms an inclined mounting surface; The end beam (22) is fixedly arranged on the inclined installation surface of the connecting support (23). The two ends of the end beam (22) are used to pull the two steel cables (1) respectively. 6. A prestressed flexible photovoltaic fixing bracket according to claim 5, characterized in that the structure of the end beam (22) pulling the steel cable (1) is: there are openings at both ends of the end beam (22) Steel cable perforation (221), the steel cable (1) is fixed after passing through the steel cable perforation (221); Alternatively, the end beam (22) has reinforcing plates (28) at both ends. The reinforcing plate (28) has a steel cable perforation (221), and the steel cable (1) is fixed after passing through the steel cable perforation (221). . 7. A kind of prestressed flexible photovoltaic fixing bracket according to claim 5, characterized in that the prestressed flexible photovoltaic fixing bracket further includes two cable-stayed components, the upper ends of the two cable-stayed components are respectively connected with the end beam ( 22) Both ends are connected, and the lower ends of the two cable-stayed components are respectively connected to the end foundation; the cable-stayed component includes a pull rope (26), and the upper end of the pull rope (26) is connected to the end beam through the adjustable component (25) (22) is connected to the upper bracket plate (24), and the lower end of the pull rope (26) is connected to the lower support (27) on the ground through the adjustable assembly (25); The adjustable component (25) includes a U-shaped pipe (251), the open end of the U-shaped pipe (251) is inserted into the connecting block (252), and the drawstring (26) passes through the drawstring hole in the middle of the connecting block (252). Then it is fixed by the limit nut. After moving the connecting block (252) to the required position of the U-shaped pipe fitting (251), the connecting block (252) is fixed by the locking nut.