CN220382980U - High-low leg type large-span support - Google Patents

Abstract

The utility model belongs to the technical field of photovoltaics, and particularly provides a high-low leg type large-span support which is arranged on a foundation structure.

Description

High-low leg type large-span support

Technical Field

The utility model belongs to the technical field of photovoltaics, and particularly relates to a high-low leg type large-span bracket.

Background

In mountain region photovoltaic project, can not avoid meeting complicated topography and fluctuate's problem, traditional fixed bolster structural style hardly adapts to topography and fluctuates and stride across the problem, often has not satisfied photovoltaic module's layout demand. In recent years, in order to solve the problems, some projects adopt a flexible suspension cable structure to lay a photovoltaic module, but the problems of wind-following swing and vibration of the flexible structure and tensioning prestress failure of the suspension cable structure are frequently faced, and the flexible suspension cable structure system is complex, so that when the number of photovoltaic project supports is large and the topography is complex, standardized products are difficult to form, the design, manufacturing, construction and installation efficiency is low, and the implementation effect is poor.

The Chinese patent literature with publication number of CN209488498U and publication date of 2019, 10 month and 11 discloses an adjustable photovoltaic bracket for mountain lands, which comprises a main beam, a mounting rack fixedly connected with the main beam and used for mounting a photovoltaic module, a stand column fixed on the mountain lands, and a connecting mechanism for fixing the main beam on the stand column, wherein the connecting mechanism comprises an adjusting piece which is connected with the stand column and can be obliquely arranged relative to the stand column, and the main beam is fixed on the adjusting piece. The small unit structure with few stand columns is adopted in the literature, the adaptability to complex terrains is strong, the small unit structure can be installed along with slope situation, the overall effect of a power station is good, the support structure is simple, and the large application space is provided. However, in the document, in order to ensure concentricity of the stand column mounting seat and the main beam, the difficulty of height adjustment required by a plurality of stand columns on an inclined plane is avoided, the number of stand columns in each small unit structure is required to be 2, but when the small units of the stand columns need to span greatly, 2 stand columns cannot meet the acceptance requirement, and the bracket is easy to topple; meanwhile, as the main beam is connected with the upright post through the adjusting piece, the structure is complex, and when the main beam is used, the adjusting piece is easy to loose, so that the main beam is inclined, and the stability is poor.

Disclosure of Invention

The utility model provides a high-low leg type large-span support which aims to solve the problems that a support structure is complex, occupied space is large, stability is poor, components are irregular, standardization is difficult to achieve and adaptability is poor when a mountain photovoltaic project is laid in a large span in a complex terrain in the prior art.

The utility model provides a high-low leg type large-span support which is arranged on a foundation structure and comprises a cantilever truss, a first supporting leg, a second supporting leg, a third supporting leg and a fourth supporting leg, wherein the upper end of the first supporting leg, the upper end of the second supporting leg, the upper end of the third supporting leg and the upper end of the fourth supporting leg are connected through the cantilever truss, and the lower end of the second supporting leg, the lower end of the third supporting leg and the lower end of the fourth supporting leg are all connected with the foundation structure.

Preferably, the first, second, third and fourth legs have the same or different heights.

Preferably, the first leg and the second leg are connected below the left part of the cantilever truss from front to back, and the third leg and the fourth leg are connected below the right part of the cantilever truss from front to back.

Preferably, the first supporting leg, the second supporting leg, the third supporting leg and the fourth supporting leg are all lattice-type steel upright posts with variable cross sections.

Preferably, the cantilever truss is a space truss structure.

Preferably, the cantilever truss spans 10m-30m.

Preferably, the first supporting leg, the second supporting leg, the third supporting leg and the fourth supporting leg are all connected with the foundation structure through embedded parts.

Preferably, the embedded part adopts a reinforced concrete structure to embed foundation bolts or steel embedded plates.

Preferably, the foundation structure adopts a cast-in-place pile foundation.

The utility model has the beneficial effects that:

1. the high-low leg type large-span support comprises a cantilever truss, a first supporting leg, a second supporting leg, a third supporting leg and a fourth supporting leg, wherein the upper end of the first supporting leg, the upper end of the second supporting leg, the upper end of the third supporting leg and the upper end of the fourth supporting leg are connected through the cantilever truss, and the lower end of the second supporting leg, the lower end of the third supporting leg and the lower end of the fourth supporting leg are all connected with a foundation structure; when the photovoltaic module is used, the plane of the cantilever truss at the top is arranged along with the slope, the photovoltaic module is designed according to a certain fixed angle according to the solar radiation angle, and the photovoltaic module cell panels are uniformly distributed and installed on the upper plane of the cantilever truss, and various loads transmitted by the photovoltaic module are born by virtue of the excellent large-span stress performance of the cantilever truss structure; the first supporting leg, the second supporting leg, the third supporting leg and the fourth supporting leg can be designed to be equal in height or different in height according to the topography of four fulcra, so that the cantilever truss is suitable for different height differences, various loads transmitted by the cantilever truss are transmitted, and the loads are transmitted downwards to a foundation structure. The high-low leg type large-span support with the structure has the advantages of small occupied area, strong terrain adaptation capability, good spanning performance, simple structure and regular components, is beneficial to design, manufacture and installation standardization, is easy to realize standardized production, and meets the requirement of large-spanning layout functions of photovoltaic modules in complex terrains.

2. The high-low leg type large-span support provided by the utility model has the advantages that the first support leg, the second support leg, the third support leg and the fourth support leg are all variable-section lattice type steel stand columns, the deformation of beams can be reduced by adopting the variable-section lattice type steel stand columns, the strength of each component forming the steel stand columns is more fully utilized, the high-low leg type large-span support is more in line with the actual stress state, the installation is quick, the appearance is attractive, the shape and the section of the steel stand columns can be adjusted according to the actual stress state of the steel stand columns, the steel stand column structure can be optimized, and the steel and the construction cost can be saved.

3. The high-low leg type large-span support provided by the utility model has the advantages that the span of the cantilever truss is 10-30 m, so that the structural stress is reasonable, the large-span stress performance of the cantilever truss is good, the cost is reduced, and the economic performance is good.

Drawings

The present utility model will be described in further detail with reference to the accompanying drawings.

FIG. 1 is a front elevational view of a structure of a high-low leg type large span bracket;

FIG. 2 is a top plan view of a cantilever truss ramp;

FIG. 3 is a view in the K-direction of FIG. 1;

fig. 4 is an L-direction view of fig. 1.

Reference numerals illustrate: 1. cantilever truss; 2. a first supporting leg; 3. a second supporting leg; 4. a third supporting leg; 5. a fourth supporting leg; 6. a base structure; 7. an embedded part; a. a photovoltaic module.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer.

Example 1:

as shown in fig. 1-4, a high-low leg type large-span support is mounted on a foundation structure 6, and comprises a cantilever truss 1, a first support leg 2, a second support leg 3, a third support leg 4 and a fourth support leg 5, wherein the upper end of the first support leg 2, the upper end of the second support leg 3, the upper end of the third support leg 4 and the upper end of the fourth support leg 5 are connected through the cantilever truss 1, and the lower end of the first support leg 2, the lower end of the second support leg 3, the lower end of the third support leg 4 and the lower end of the fourth support leg 5 are all connected with the foundation structure 6.

When the photovoltaic module is used, the plane of the top cantilever truss 1 is arranged along with the slope, and is designed to be a certain fixed angle according to the solar radiation angle, and the cell plates of the photovoltaic module a are uniformly distributed and installed on the plane of the cantilever truss 1, and various loads transmitted by the photovoltaic module are born by virtue of the excellent large-span stress performance of the cantilever truss 1; the first supporting leg 2, the second supporting leg 3, the third supporting leg 4 and the fourth supporting leg 5 can be designed to be equal in height or different in height according to the terrain condition of four supporting points, so that the cantilever truss is suitable for different height differences, and various loads transmitted by the cantilever truss 1 are transmitted, and then the loads are transmitted downwards to the foundation structure 6. The high-low leg type large-span support with the structure has the advantages of small occupied area, strong terrain adaptation capability, good spanning performance, simple structure and regular components, is beneficial to design, manufacture and installation standardization, is easy to realize standardized production, and meets the requirement of large-spanning layout functions of photovoltaic modules in complex terrains.

Example 2:

on the basis of the embodiment 1, the heights of the first supporting leg 2, the second supporting leg 3, the third supporting leg 4 and the fourth supporting leg 5 are the same or different.

The first supporting leg 2, the second supporting leg 3, the third supporting leg 4 and the fourth supporting leg 5 can be designed to be equal in height or different in height according to the terrain condition of four supporting points, so that the cantilever truss is suitable for different height differences, and various loads transmitted by the cantilever truss 1 are transmitted, and then the loads are transmitted downwards to the foundation structure 6.

Preferably, the first leg 2 and the second leg 3 are connected below the left part of the cantilever truss 1 from front to back, and the third leg 4 and the fourth leg 5 are connected below the right part of the cantilever truss 1 from front to back.

Compared with the number of the stand columns in each small unit structure in the prior art, when the small units of the stand columns need to span greatly, the number of the stand columns is 2, and the stand columns can not meet the acceptance requirement, so that the stand is easy to overturn; according to the utility model, any two of the first support leg 2, the second support leg 3, the third support leg 4 and the fourth support leg 5 and the cantilever truss 1 form a door-shaped structure, so that the stress requirement is met, the problems of wind-driven vibration and prestress failure of the flexible suspension cable structure are avoided, and the structural stability is higher.

Preferably, the first supporting leg 2, the second supporting leg 3, the third supporting leg 4 and the fourth supporting leg 5 are all variable-section lattice type steel upright posts.

The variable-section lattice type steel upright post can reduce the deformation of the beam, the strength of each component forming the steel upright post is more fully utilized, the steel upright post is more in line with the actual stress state, the installation is quick, the appearance is attractive, the shape and the section of the steel upright post can be adjusted according to the actual stress state of the steel upright post, the steel upright post structure can be optimized, and the steel and the construction cost are saved. The concrete structure of the variable-section lattice type steel upright post is an existing structure, and the variable-section lattice type steel upright post is selected according to actual conditions during use. The utility model introduces the design concept of high and low legs in the angle steel iron tower of the transmission line, arranges the lattice type steel upright posts with variable cross sections at four corners of the cantilever truss 1, but the cantilever truss 1 extends out of two sides of the supporting legs along the slope direction for a certain cantilever length, and four supporting arms can be designed at equal heights or different heights according to the topography condition of four supporting points, so that the angle steel iron tower is suitable for different height differences, transmits various loads transmitted by an upper truss structure, and then transmits the loads downwards to a foundation structure 6.

Preferably, the cantilever truss 1 is a space truss structure.

The cantilever truss of the space truss structure is simple and convenient to design, manufacture and install, and the truss has a large adaptive span range, so that the large span can be met.

Preferably, the cantilever truss 1 comprises a left-span cantilever truss, a middle-span cantilever truss and a right-span cantilever truss, and the left-span cantilever truss, the middle-span cantilever truss and the right-span cantilever truss are connected into a whole; the lower part between the middle cantilever truss and the right cantilever truss is connected with a third support leg 4 and a fourth support leg 5; this arrangement provides for better device stability.

The left-span cantilever truss is made of Q355, is of a space truss structure, adopts angle steel as a main section, is arranged on the left side of the outer side of a door-shaped structure formed by supporting legs and an inner-span truss (middle-span cantilever truss), and is finally connected with the inner-span truss to form an integral structure. The section and the material can be customized according to the requirement, and the stress requirement can be met.

The mid-span cantilever truss is made of Q355 and is of a space truss structure, angle steel is adopted as a main section, and the mid-span cantilever truss and the supporting legs are connected to form a portal space integral structure. The section and the material can be customized according to the requirement, and the stress requirement can be met.

The right cantilever truss is Q355, is of a space truss structure, adopts angle steel as a main section, is arranged on the right side of the outer side of the door-shaped structure consisting of the supporting legs and the inner truss, and is finally connected with the inner truss to form an integral structure. The section and the material can be customized according to the requirement, and the stress requirement can be met.

Preferably, the span of the cantilever truss 1 is 10m-30m.

The span of the cantilever truss 1 is 10m-30m, so that the structural stress is reasonable, the large-span stress performance of the cantilever truss 1 is good, the cost is reduced, and the economic performance is good.

Preferably, the first support leg 2, the second support leg 3, the third support leg 4 and the fourth support leg 5 are all connected with the foundation structure 6 through the embedded part 7.

The embedded part 7 is reliably connected with the lower part of the supporting leg upright post, and the foundation structure 6 can directly take part in the foundation type of the transmission line iron tower and meet the stress requirement.

Preferably, the first support leg 2, the second support leg 3, the third support leg 4 and the fourth support leg 5 are all Q355, are lattice steel columns with variable cross sections, are mainly made of angle steel, are one of the support legs for supporting the upper integral truss structure, and are matched with the corresponding supporting point in height, so that the fixed angle of the upper surface of the upper integral truss (cantilever truss) is finally met.

Preferably, the embedded part 7 adopts a reinforced concrete structure to embed foundation bolts or steel embedded plates.

The embedded foundation bolts or the steel embedded plates of the reinforced concrete structure are simple to connect and good in stability after connection.

Preferably, the foundation structure 6 is a cast-in-place pile foundation.

The bored concrete pile foundation has no vibration, no soil squeezing and low noise during construction, is favorable for construction in mountain areas and has wide application range.

Preferably, the foundation structure 6 adopts prefabricated pipe piles; the prefabricated pipe pile can be lifted off the ground by a certain height, so that the height of the high and low legs is reduced, the steel consumption is reduced, and the cost is saved.

In the implementation process of the mountain photovoltaic project, for a mountain slope with a specific gradient, the angle of the high-low leg type large-span support is determined according to local sunlight resource data and the radiation angle, and after the positions, the elevations and the lowest point ground-leaving heights of the components of four legs (a first leg 2, a second leg 3, a third leg 4 and a fourth leg 5) are determined in the mountain slope area of the photovoltaic component to be arranged, the structure and the foundation structure 6 of the large-span support are determined by utilizing the high-low leg type large-span support and engineering practical conditions. Firstly, constructing a foundation structure 6 and embedded parts 7 of four support legs, when the concrete strength of the foundation structure 6 reaches a specified level, starting the upper structure installation, respectively assembling the four support leg structures during the installation, connecting and fixing the support leg structures with the foundation structure 6 after the support leg structures are in place, and temporarily reinforcing to prevent overturning; the upper structure is assembled and spliced into a whole in section and then is in place (namely, the cantilever truss is assembled), the cantilever truss and the four supporting legs are connected and fixed after being adjusted and positioned, so that an integral structure is formed, and finally, the photovoltaic module panels are arranged on the upper plane of the cantilever truss one by one.

The high-low leg type large-span support achieves the functions of crossing structural design and photovoltaic module layout of a photovoltaic module in complex terrains, solves the problem of fluctuation and crossing of terrains which are difficult to adapt to the structural type of the traditional fixed support, avoids the problems of wind-following vibration and prestress invalidation of a flexible suspension cable structure, and has the advantages of simple support structure, small occupied area, good stability, regular components, standardized production, good adaptability, convenient construction, low cost and stronger popularization and application value when the mountain photovoltaic project is laid in the large crossing of the complex terrains.

In the description of the present utility model, it should be understood that, if any, the terms "front," "interior," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, rather than indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus the terms describing the positional relationship in the drawings are for illustration only and are not to be construed as limiting the utility model.

The foregoing examples are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model, and all designs that are the same or similar to the present utility model are within the scope of the present utility model.

Claims (7)

1. A high-low leg large span support, said support being mounted on a base structure (6), characterized in that: the support comprises a cantilever truss (1), a first support leg (2), a second support leg (3), a third support leg (4) and a fourth support leg (5), wherein the upper end of the first support leg (2), the upper end of the second support leg (3), the upper end of the third support leg (4) and the upper end of the fourth support leg (5) are connected through the cantilever truss (1), and the lower end of the first support leg (2), the lower end of the second support leg (3), the lower end of the third support leg (4) and the lower end of the fourth support leg (5) are all connected with a foundation structure (6); the first supporting leg (2), the second supporting leg (3), the third supporting leg (4) and the fourth supporting leg (5) are all variable-section lattice type steel upright posts; the foundation structure (6) adopts prefabricated pipe piles, and the pile tops of the prefabricated pipe piles are higher than the ground.

2. The high and low leg type large span stent of claim 1, wherein: the first supporting leg (2), the second supporting leg (3), the third supporting leg (4) and the fourth supporting leg (5) are the same or different in height.

3. The high and low leg type large span stent of claim 1, wherein: the first supporting leg (2) and the second supporting leg (3) are connected from front to back below the left part of the cantilever truss (1), and the third supporting leg (4) and the fourth supporting leg (5) are connected from front to back below the right part of the cantilever truss (1).

4. The high and low leg type large span stent of claim 1, wherein: the cantilever truss (1) is of a space truss structure.

5. The high and low leg type large span stent of claim 4, wherein: the span of the cantilever truss (1) is 10m-30m.

6. The high and low leg type large span stent of claim 1, wherein: the first supporting leg (2), the second supporting leg (3), the third supporting leg (4) and the fourth supporting leg (5) are connected with the foundation structure (6) through embedded parts (7).

7. The high and low leg type large span stent of claim 6, wherein: the embedded part (7) adopts a reinforced concrete structure to embed foundation bolts or steel embedded plates.