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

Prestressed flexible photovoltaic fixing support

Technical Field

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

Background

Existing photovoltaic support structures, see prior patents, patent numbers: 201921473472, patent name: a support column structure and a flexible inhaul cable bracket.

In the patent, a plurality of solar panels of each row are arranged on two bearing steel ropes, and in order to enable the solar panels to be obliquely arranged, the two steel ropes of each row are supported by virtue of two end support frames and a plurality of middle support frames, in the past, the end support frames adopt two high-end posts and low-end posts, one bearing steel rope is connected with the high-end posts, and the other bearing steel rope is connected with the low-end posts; meanwhile, the high-end column is required to be pulled through two diagonal rods, one diagonal rod is a main diagonal rod, the other diagonal rod is a light diagonal rod, and the low-end column is pulled through the main diagonal rod and the light diagonal rod. The high-end column is connected with the ground, and the diagonal draw bar is connected with the ground, so that the embedded part is also required; therefore, in the previous end support frame, six ground embedded parts (a high-end post embedded part, a low-end post embedded part, two main heavy diagonal draw bar embedded parts and two light diagonal draw bar embedded parts) are required to be arranged on one side of each row of photovoltaic support frame, so that the previous photovoltaic support frame is built, the two end support frames are complex in structure, more in parts, long in construction period, high in cost and inflexible in arrangement, and too many diagonal draw bars influence workers to walk and overhaul the photovoltaic support frame.

For the middle support frame, the triangular upright posts are supported, and the bottoms of the triangular upright posts are hinged with the hinged supports, so that the triangular upright posts can swing; the two sides of the triangular support post are matched with diagonal rods with adjustable lengths for tensioning, and the inclined angles of the triangular support post are adjusted by adjusting the lengths of the two diagonal rods, so that the middle parts of the two bearing steel cables also keep corresponding inclined angles. Therefore, the middle support frame in the past needs to be matched with a combination of a triangular upright post and two adjustable diagonal rods, and the combination needs to be provided with three foundation embedded parts, so that the middle support frame also has the advantages of complex structure, multiple parts, long construction period and high cost.

And each row of photovoltaics is independent, and the row lacks the connection between the row, causes the whole strong ability that shocks resistance of photovoltaic support not high.

Disclosure of Invention

The invention aims to solve the technical problems that: the problems of complex structure, long construction period and inflexible arrangement of the traditional photovoltaic support are solved.

The technical scheme adopted for solving the technical problems is as follows:

the prestress flexible photovoltaic fixing bracket is characterized by comprising at least two rows of photovoltaic brackets;

each row of photovoltaic brackets comprises at least one group of end upright posts;

the end upright posts pull two flexible steel ropes in the length direction of the steel ropes, the two steel ropes form a high-low structure, and the two steel ropes can be provided with solar panels. The steel cable is a prestressed galvanized steel strand.

The photovoltaic support further comprises middle upright posts, and a reinforced connection structure is arranged between the middle upright posts of the adjacent photovoltaic supports so as to improve the bearing capacity and stability of the middle upright posts in the row width direction.

Further, the reinforced connecting structure comprises a cross rod and two cable-stayed steel strands, the cross rod is connected between one middle upright post and the other middle upright post adjacent to the middle upright post,

two cable-stayed steel strands are connected between one middle upright post and the other adjacent middle upright post in an X shape.

Further, the cross bars are rigid cross bars, cross bar connecting plates are arranged at the upper ends of the upright post bodies of the middle upright posts, and two ends of each cross bar are respectively fixedly arranged with the corresponding cross bar connecting plates of the middle upright posts;

the cable-stayed steel strand is a flexible stay rope, the upper end of the cable-stayed steel strand is fixed with the upper part of the middle upright post, and the lower end of the cable-stayed steel strand is fixed with the lower foundation of another adjacent middle upright post.

Further, the fixing mode of the cable-stayed steel strand and the upper part and/or the lower part foundation of the middle upright post is as follows: the end part of the cable-stayed steel strand is adjustably connected with the upper part and/or the lower part foundation of the middle upright post through a basket bolt piece or an adjustable component;

the adjustable assembly comprises a U-shaped pipe fitting, the opening end of the U-shaped pipe fitting is sleeved into the connecting block, the pull rope penetrates through a pull rope hole in the middle of the connecting block and then is fixed by a limit nut, and the connecting block is moved to enable the connecting block to be fixed by the limit nut after being at a required position of the U-shaped pipe fitting.

Further, the middle upright post comprises a hinged support, an upright post body and a middle cross beam;

the lower end of the upright post body is hinged with the hinged support, so that the upright post body can swing on the hinged support along the length direction of the steel cable, and unbalanced force generated by external load is balanced;

the upper end of the upright post body is provided with a middle cross beam which is obliquely arranged at the upper end of the upright post body;

locking components for locking and buckling the steel ropes are arranged at two ends of the middle cross beam;

the locking assembly comprises a lock bottom plate and two U-shaped bolts, the lock bottom plate is fixedly connected with the middle cross beam, the U-shaped bolts are arranged on two sides of the lock bottom plate, and a steel cable passes through the space between the U-shaped bolts and the lock bottom plate and is locked on the lock bottom plate by the U-shaped bolts.

Or, the locking component is a U-shaped mounting piece fixedly mounted with the cross beam.

Further, the middle cross beam is fixedly connected with the upright post body, a first inclined stay bar and a second inclined stay bar are arranged between the middle cross beam and the upright post body, and the middle cross beam, the first inclined stay bar and the second inclined stay bar form a triangle structure.

Further, the end post includes:

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

the end cross beam is fixedly arranged on the inclined mounting surface of the connecting support, and two ends of the end cross beam are used for respectively pulling the two steel ropes.

Further, the structure of the end beam traction steel rope is as follows: and steel rope perforations are formed in two ends of the end cross beam, and the steel rope penetrates through the steel rope perforations and is fixed.

Or, the two ends of the end cross beam are provided with reinforcing plates, the reinforcing plates are provided with steel rope perforations, and the steel rope penetrates through the steel rope perforations and is fixed.

Further, the prestress flexible photovoltaic fixing support further comprises two inclined pull assemblies, the upper ends of the two inclined pull assemblies are respectively connected with the two ends of the end cross beam, and the lower ends of the two inclined pull assemblies are respectively connected with the end foundation.

Further, the cable-stayed assembly comprises a pull rod, the upper end of the pull rod is connected with an upper support plate on the end cross beam through an adjustable assembly, and the lower end of the pull rope is connected with a lower support on a foundation through the adjustable assembly;

the adjustable assembly comprises a U-shaped pipe fitting, the opening end of the U-shaped pipe fitting is sleeved into the connecting block, the pull rope penetrates through a pull rope hole in the middle of the connecting block and then is fixed by a limit nut, and the connecting block is moved to enable the connecting block to be fixed by the limit nut after being at a required position of the U-shaped pipe fitting.

The beneficial effects of the invention are as follows:

the prestress flexible photovoltaic fixing bracket disclosed by the invention has the advantages of simple structure, definite stress, simplicity in construction, shortened construction period, reduced construction cost and improved flexibility in arrangement of the photovoltaic bracket.

The cross beam on the end upright post is directly arranged in an inclined mode, the two high and low end posts do not need to be built in the past, the structure of the end upright post is stable and reliable, and the two steel ropes can be stably and reliably pulled at the end part of the photovoltaic bracket.

The single middle upright post is directly and obliquely fixed on the upright post body, the upright post body and the hinged support are directly hinged on site, the construction is convenient, and the construction period of the photovoltaic bracket is shortened.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of a pre-stressed flexible photovoltaic mounting bracket of the present invention;

FIG. 2 is a schematic view of an inter-row reinforcement structure;

FIG. 3 is a schematic view of an inter-row reinforcement (connecting ropes);

FIG. 4 is a schematic view of a rocking mechanism (connecting intermediate base posts) for a photovoltaic bracket;

FIG. 5 is a schematic view of a rocking mechanism for a photovoltaic bracket;

FIG. 6 is a schematic view of a locking assembly;

FIG. 7 is a schematic view of a rocking mechanism connection cable for a photovoltaic bracket;

FIG. 8 is a schematic view of an end post;

FIG. 9 is a schematic view of a cable pulling structure;

FIG. 10 is a schematic view of a rope pulling structure connecting a rope;

FIG. 11 is a schematic diagram of an adjustable assembly;

FIG. 12 is a schematic view of the installation of the U-shaped mounting member with the intermediate beam;

wherein,

1. a wire rope;

2. the end upright post, 21, an end upright post body, 22, an end cross beam, 221, a steel rope perforation, 23, a connecting support, 24, an upper support plate, 25, an adjustable component, 251, a U-shaped pipe fitting, 252, a connecting block, 26, a pull rope, 27, a lower support, 28 and a reinforcing plate;

3. middle upright post, 31, upright post body, 311, column part, 312, hinged plate, 313, supporting plate, 32 and middle beam; 33. a first diagonal brace, 34, a second diagonal brace;

4. a locking assembly 41, a lock bottom plate 42 and U-shaped bolts; 43. a U-shaped mounting member;

5. a hinged support, 51, a middle foundation column;

61. the cross rod, 62, the cable-stayed steel strand, 63 and the basket bolt.

Detailed Description

The invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic views illustrating the basic structure of the present invention by way of illustration only, and thus show only the constitution related to the present invention.

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

each row of photovoltaic brackets comprises at least one group of end upright posts 2 and a middle upright post 3; the group of end upright posts 2 comprises two end upright posts, and the two end upright posts are respectively arranged at two ends of each row of photovoltaic brackets.

The end upright posts 2 are used for pulling two flexible steel ropes 1 in the length direction of the steel ropes 1, the two steel ropes 1 form a high-low structure, and solar panels can be installed on the two steel ropes 1. The steel cable 1 is a prestressed galvanized steel strand.

And a reinforced connection structure is arranged between the middle upright posts 3 of the adjacent photovoltaic brackets so as to improve the shock resistance of the middle upright posts 3 in the row width direction.

In this embodiment, each row of photovoltaic fixing brackets comprises two end uprights 2 and two intermediate uprights 3.

Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 2 and fig. 3, the reinforcing connection structure includes one cross bar 61 and two cable-stayed steel strands 62, where the cross bar 61 is connected between one middle upright 3 and another middle upright 3 adjacent to the middle upright, and the two cable-stayed steel strands 62 are connected between one middle upright 3 and another middle upright 3 adjacent to the middle upright in an "X" shape.

Specifically, as an alternative implementation manner 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 is provided with a cross bar connecting plate, and two ends of the cross bar 61 are respectively fixed with the corresponding cross bar connecting plates of the 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 with the upper part of the middle upright post 3, and the lower end of the cable-stayed steel strand 62 is fixed with the lower foundation of another adjacent middle upright post 3.

Specifically, as an alternative implementation manner in this embodiment, the manner in which the cable-stayed steel strand 62 is fixed to the upper portion and/or the lower portion of the middle column 3 is: the end parts of the cable-stayed steel strands 62 are adjustably connected with the upper part and/or the lower part foundation of the middle upright post 3 through the turnbuckle parts 63 or through the adjustable components 25;

the adjustable assembly 25 comprises a U-shaped pipe 251, the open end of the U-shaped pipe 251 is sleeved into a connecting block 252, the pull rope 26 passes through a pull rope hole in the middle of the connecting block 252 and is fixed by a limit nut, and the connecting block 252 is moved to be fixed by the limit nut after being positioned at a required position of the U-shaped pipe 251.

Specifically, as an alternative implementation manner in the present embodiment, as shown in fig. 4 and fig. 5 and fig. 7, the middle upright 3 includes a hinge support 5, an upright body 31, and a middle cross beam 32; the column body 31 is an i-beam or other cross-section beam.

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

the upper end of the upright post body 31 is provided with a middle cross beam 32, and the middle cross beam 32 is obliquely arranged at the upper end of the upright post body 31;

locking components 4 for locking the steel cable 1 are arranged at two ends of the middle cross beam 32;

as shown in fig. 6, the locking assembly 4 includes a lock bottom plate 41 and two U-bolts 42, the lock bottom plate 41 is fixedly connected with the middle cross beam 32, the U-bolts 42 are disposed at two sides of the lock bottom plate 41, and the wire rope 1 passes through between the U-bolts 42 and the lock bottom plate 41 and is locked on the lock bottom plate 41 by the U-bolts 42.

Specifically, as an alternative implementation of this embodiment, as shown in fig. 12, the locking assembly 4 is a U-shaped mounting member 43 fixedly mounted to the beam 32, and the steel cable 1 passes between the U-shaped mounting member and the top surface of the beam 32.

Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 4 and fig. 5, the middle cross beam 32 is fixedly connected with the upright body 31, a first diagonal brace 33 and a second diagonal brace 34 are disposed between the middle cross beam 32 and the upright body 31, and the middle cross beam 32, the first diagonal brace 33 and the second diagonal brace 34 form a triangle structure.

Specifically, in this embodiment, an embedded middle foundation post 51 is disposed at the bottom of the hinge support 5, and the bottom of the hinge support 5 is fixedly connected with the middle foundation post 51. Specifically, the hinge support 5 is fixed to the column base of the intermediate foundation column 51 by bolts.

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

The column body 31 includes a column portion 311 and a hinge portion, and the column portion 311 is in the form of a single column. The single upright post is simple in structure, does not occupy the space below the steel cable, and is convenient for workers to walk and overhaul.

The hinge portion of the column body 31 has a hinge plate 312, and the hinge plate 312 is hinged to 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 hinged plate 312 and the column body 311 are fixedly connected by welding, so that the bottom strength of the column body is improved.

Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 8 and fig. 9 and fig. 10, the end stand 2 includes:

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

the end cross beam 22 is fixedly arranged on the inclined mounting surface of the connecting support 23, and two ends of the end cross beam 22 are used for respectively pulling the two steel ropes 1.

Specifically, as an alternative implementation manner in this embodiment, the structure of the end beam 22 for pulling the steel cable 1 is as follows: the two ends of the end cross beam 22 are provided with steel rope perforations 221, and the steel rope 1 passes through the steel rope perforations 221 and is fixed;

alternatively, the end cross beam 22 has reinforcing plates 28 at both ends, the reinforcing plates 28 are provided with wire rope perforations 221, and the wire rope 1 is fixed after passing through the wire rope perforations 221.

The reinforcing plate 28 is used as a backing plate, the end part of the steel cable 1 is connected with an anchor, and the anchor is abutted on the reinforcing plate 28, so that the local pressure applied to the cross beam is reduced.

Specifically, as an optional implementation manner in this embodiment, the prestressed flexible photovoltaic fixing support further includes two cable-stayed assemblies, the upper ends of the two cable-stayed assemblies are respectively connected with two ends of the end beam 22, and the lower ends of the two cable-stayed assemblies are respectively connected with the ground.

Specifically, as an alternative implementation manner in this embodiment, the cable-stayed assembly includes a pull rope 26, the upper end of the pull rope 26 is connected with an upper support plate 24 on the end beam 22 through an adjustable assembly 25, and the lower end of the pull rope 26 is connected with a lower support 27 on the ground through the adjustable assembly 25;

as shown in fig. 11, the adjustable assembly 25 includes a U-shaped tube 251, the open end of the U-shaped tube 251 is sleeved into a connecting block 252, the pull rope 26 passes through a pull rope hole in the middle of the connecting block 252 and is fixed by a limit nut, and the connecting block 252 is moved to a desired position of the U-shaped tube 251 and then the connecting block 252 is fixed by the limit nut.

When the photovoltaic fixing support is built, pre-buried foundation columns are built at two ends, then the end upright posts 2 are installed, the end cross beams 22 on the end upright posts 2 are obliquely arranged, and the end cross beams 22 are pulled between two cable-stayed assemblies and the ground; and a middle foundation column 51 is built at the middle position, the middle upright columns 3 are vertically installed, the middle upright columns 3 between two adjacent rows are provided with connection reinforcing connection structures, and the shock resistance between the rows is improved.

Next, the steel cord 1 is threaded: the steel ropes 1 are penetrated between the end upright posts 2 and the middle upright posts 3, the locking component 4 fixes the steel ropes 1 with the middle cross beam 32, the end parts of the steel ropes 1 are fixedly connected with the end cross beams 22, after the steel ropes 1 are installed, the solar cell panels are fixed on the two steel ropes 1, and the end cross beams 22 and the middle cross beam 32 are obliquely arranged, so that the installed solar cell panels are obliquely arranged.

Compared with the prior art, the whole photovoltaic fixing support reduces the number of embedded parts on the ground, reduces the construction period and the cost, improves the connection strength between rows, and improves the capability of the whole photovoltaic fixing support in resisting impact and severe weather.

With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to 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 description, but must be determined according to the scope of claims.

Claims (7)

1. The prestress flexible photovoltaic fixing bracket is characterized by comprising at least two rows of photovoltaic brackets;

each row of photovoltaic brackets comprises at least one group of end upright posts (2);

the end upright post (2) is used for pulling two flexible steel ropes (1) in the length direction of the steel ropes (1), the two steel ropes (1) form a high-low structure, and a solar panel can be installed on the two steel ropes (1);

the photovoltaic support further comprises middle upright posts (3), and a reinforced connecting structure is arranged between the middle upright posts (3) of the adjacent photovoltaic supports so as to improve the bearing capacity and stability of the middle upright posts (3) in the row width direction;

the reinforced connection structure between the middle upright posts (3) of the adjacent photovoltaic brackets comprises a cross rod (61) and two cable-stayed steel strands (62), wherein the cross rod (61) is connected between one middle upright post (3) and the other middle upright post (3) adjacent to the middle upright post;

two cable-stayed steel strands (62) are connected between one middle upright post (3) and the other middle upright post (3) adjacent to the middle upright post in an X shape;

the cross rod (61) is a rigid cross rod, the upper end of the upright post body (31) of the middle upright post (3) is provided with a cross rod connecting plate, and two ends of the cross rod (61) are respectively fixedly installed with the cross rod connecting plates of the corresponding middle upright post (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 with the upper part of the middle upright post (3), and the lower end of the cable-stayed steel strand (62) is fixed with the lower foundation of the other adjacent middle upright post (3);

the middle upright post (3) comprises a hinged support (5), an upright post body (31) and a middle cross beam (32);

the lower end of the upright post body (31) is hinged with the hinged support (5) so that the upright post body (31) can swing on the hinged support (5) along the length direction of the steel cable (1).

2. The inter-row reinforcement structure of a photovoltaic bracket according to claim 1, characterized in that the manner in which the cable-stayed steel strand (62) is fixed to the upper and/or lower foundation of the middle upright (3) is: the end part of the cable-stayed steel strand (62) is adjustably connected with the upper part and/or the lower part foundation of the middle upright post (3) through a turnbuckle part (63) or through an adjustable component (25);

the adjustable assembly (25) comprises a U-shaped pipe fitting (251), the opening end of the U-shaped pipe fitting (251) is sleeved into the connecting block (252), the pull rope (26) passes through a pull rope hole in the middle of the connecting block (252) and is fixed by a limit nut, and the connecting block (252) is moved to be fixed by the limit nut after the connecting block (252) is at the required position of the U-shaped pipe fitting (251).

3. A pre-stressed flexible photovoltaic mounting bracket according to claim 1, wherein,

the upper end of the upright post body (31) is provided with a middle cross beam (32), and the middle cross beam (32) is obliquely arranged at the upper end of the upright post body (31);

locking assemblies (4) for locking the steel cable (1) are arranged at two ends of the middle cross beam (32);

the locking assembly (4) comprises a locking bottom plate (41) and two U-shaped bolts (42), the locking bottom plate (41) is fixedly connected with the middle cross beam (32), the U-shaped bolts (42) are arranged on two sides of the locking bottom plate (41), and the steel cable (1) passes through the space between the U-shaped bolts (42) and the locking bottom plate (41) and is locked on the locking bottom plate (41) by the U-shaped bolts (42);

alternatively, the locking assembly (4) is a U-shaped mounting fixedly mounted to the cross beam (32).

4. A prestressed flexible photovoltaic fixing bracket according to claim 3, wherein said middle cross member (32) is fixedly connected with the upright body (31), a first diagonal brace (33) and a second diagonal brace (34) are provided between said middle cross member (32) and the upright body (31), and said middle cross member (32) and the first diagonal brace (33) and the second diagonal brace (34) form a triangle structure.

5. A pre-stressed flexible photovoltaic fixation bracket according to claim 1, characterized in that the end post (2) comprises:

the connecting support (23) is arranged at the upper end of the end stand column body (21), and the top end surface of the connecting support (23) forms an inclined mounting surface;

the end cross beam (22) is fixedly arranged on the inclined mounting surface of the connecting support (23), and two ends of the end cross beam (22) are used for respectively pulling the two steel ropes (1).

6. The pre-stressed flexible photovoltaic fixed bracket according to claim 5, wherein said end beam (22) pulls the wire rope (1) in a structure of: two ends of the end cross beam (22) are provided with steel rope perforations (221), and the steel rope (1) passes through the steel rope perforations (221) and is fixed;

or, the two ends of the end cross beam (22) are provided with reinforcing plates (28), the reinforcing plates (28) are provided with steel rope perforations (221), and the steel rope (1) is fixed after passing through the steel rope perforations (221).

7. The prestressed flexible photovoltaic fixing bracket according to claim 5, further comprising two cable-stayed components, wherein the upper ends of the two cable-stayed components are respectively connected with two ends of the end beam (22), and the lower ends of the two cable-stayed components are respectively connected with the end foundation; the cable-stayed assembly comprises a stay cord (26), the upper end of the stay cord (26) is connected with an upper support plate (24) on the end cross beam (22) through an adjustable assembly (25), and the lower end of the stay cord (26) is connected with a lower support (27) on the ground through the adjustable assembly (25);

the adjustable assembly (25) comprises a U-shaped pipe fitting (251), the opening end of the U-shaped pipe fitting (251) is sleeved into the connecting block (252), the pull rope (26) passes through a pull rope hole in the middle of the connecting block (252) and is fixed by a limit nut, and the connecting block (252) is moved to be fixed by the limit nut after the connecting block (252) is at the required position of the U-shaped pipe fitting (251).