Stand column base for photovoltaic support and photovoltaic support

Abstract

The utility model discloses an upright post base for a photovoltaic support and the photovoltaic support, and belongs to the field of photovoltaic technology, the upright post base comprises a bottom plate, a sleeve arranged on the upper side of the bottom plate and an anchor bar arranged on the lower side of the bottom plate, the lower end of the sleeve and the bottom plate are welded into a whole, and the anchor bar is arranged on the lower side of the bottom plate. The anchor bar is formed by combining at least two standard length section steel bars, and the upper end of the anchor bar is connected with the bottom plate. According to the utility model, a single standard-length-section steel bar can be selected as the anchor bar as required, or two or more standard-length-section steel bars can be combined to form the anchor bar, so that the length of the anchor bar can be flexibly adjusted to adapt to wind pressure in different regions, and the universality of the stand column base is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic power generation equipment, in particular to a photovoltaic support. Background Technique

[0002] At present, for the photovoltaic power station installed in the hospital, square steel pipes are often used as the columns of the photovoltaic support, and reinforced concrete micro-pile foundations are used in combination. The column foot joints of the traditional process have the following parts: column foot, bottom plate, and anchor bars, which are welded and connected by installers on site. Chinese Patent No. 217904301U discloses a photovoltaic panel base, which includes a pre-embedded part and a support column installed on the pre-embedded part. The pre-embedded part includes an anchor plate, anchor bars, an upper connecting nut, and a lower connecting nut. A first through hole is respectively opened at each of the four corners of the anchor plate, and an anchor bar is installed on each first through hole. The upper end of the anchor bar extends out of the anchor plate through the first through hole, and one end of the anchor bar connected to the anchor plate is set as a screw end. A lower connecting nut is connected to the screw end of each anchor bar, and the lower connecting nut is located on the lower end face of the anchor plate. Due to different wind pressures in different regions, the required length of the anchor bars is also different. However, in the prior art, the length of the anchor bars is fixed. If it is too short, the fixation is unreliable; if it is too long, the entire reinforced concrete micro-pile foundation also needs to be increased, resulting in material waste. Content of the Utility Model

[0003] The purpose to be achieved by the utility model is to provide a column base for a photovoltaic support and a photovoltaic support, so as to solve the problem that it is difficult to adapt the length of the anchor bars due to different wind pressures in different regions, adapt to different regional wind pressures, and improve the versatility of the base.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] First of all, a column base for a photovoltaic support is provided, which includes a bottom plate, a sleeve arranged on the upper side of the bottom plate, and anchor bars arranged on the lower side of the bottom plate. The lower end of the sleeve is welded to the bottom plate as a whole, and the anchor bars are composed of at least two standard-length steel bars combined, and the upper ends are connected to the bottom plate.

[0006] Preferably, the standard-length steel bars extend vertically and at least one end is provided with an external thread, and the connecting ends of the two standard-length steel bars are connected by the external thread and a threaded sleeve.

[0007] Preferably, the upper ends of the anchor bars are welded to the bottom plate.

[0008] Preferably, a stiffening rib is welded between the bottom plate and the sleeve.

[0009] Preferably, the stiffening rib is a rectangular plate with notches at the corners of two of its diagonals.

[0010] Preferably, shear connectors are welded to the lower side of the bottom plate.

[0011] Preferably, the shear connector is a square steel pipe.

[0012] In addition, a photovoltaic support is also provided. The photovoltaic support is provided with a plurality of columns. The columns include column bodies and the column bases as described above. The lower end of the column body is connected to a sleeve.

[0013] Preferably, the lower end of the column body is welded to the sleeve.

[0014] Preferably, both the column body and the sleeve are square steel pipes.

[0015] The utility model adopts the foregoing technical solutions and has the following beneficial effects:

[0016] 1. Since the wind pressures in different regions are different, the required lengths of the anchor bars are also different. In the column base of the utility model, the anchor bar is composed of at least two standard-length steel bars combined. In this way, as needed, either a single standard-length steel bar can be selected as the anchor bar, or two or more standard-length steel bars can be combined to form the anchor bar. Therefore, the length of the anchor bar can be flexibly adjusted to adapt to the wind pressures in different regions, and the versatility of the column base can be improved.

[0017] In addition, the sleeve and the bottom plate are welded into one body, which can be pre-welded in the factory, reducing the on-site welding workload. Through the mechanized welding operation in the factory, the welding process quality can also be improved, the construction period can be reduced, and the overall safety performance of the power station can be improved.

[0018] 2. Since the connecting ends of the two standard-length steel bars are connected to the threaded sleeve through external threads, it is convenient to form the anchor bar by combining two or more standard-length steel bars during on-site construction, and the technical requirements for construction workers are not high.

[0019] 3. Since stiffening ribs can also be welded between the bottom plate and the sleeve, the connection stability and torsional resistance between the bottom plate and the sleeve can be improved.

[0020] 4. Since shear connectors can also be welded on the lower side of the bottom plate, the shear force at the column bottom can be resisted through the shear connectors, preventing slippage between the bottom plate and the top surface of the foundation concrete.

[0021] 5. The column body, the sleeve, and the shear connectors can all be made of square steel pipes, which are standardized products. They not only have high strength but also low cost, and are widely used in photovoltaic supports.

[0022] 6. As a key node in the construction of the steel structure of the photovoltaic support, the column base is a crucial part to ensure the safety and stability of the power station. Therefore, high requirements are put forward for on-site welding workers. However, limited by the uneven level of construction workers, quality defects such as porosity, slag inclusion, and cracks often occur. This application proposes an integrated column base. On-site, only the column body needs to be welded or connected to the column base in other ways, and each component in the column base, including the bottom plate, sleeve, stiffening rib, anchor bar, and shear connector, is pre-welded in the factory. Therefore, this integrated base greatly reduces the on-site welding workload, improves the welding process quality through mechanized in-factory welding operations, reduces the construction period, and improves the overall safety performance of the power station.

[0023] These features and advantages of the present utility model will be disclosed in detail in the following specific embodiments and drawings. Brief Description of the Drawings

[0024] The following further describes the present utility model with reference to the drawings:

[0025] Figure 1 It is a decomposition structure diagram of the column base of the present utility model;

[0026] Figure 2 It is an overall structure diagram of the column base of the present utility model;

[0027] Figure 3 It is a schematic diagram of the anchor bar composed of two standard-length steel bars combined;

[0028] In the figure: 100 - column body; 200 - sleeve; 201 - stiffening rib; 202 - bottom plate; 203 - shear connector; 300 - threaded sleeve; 301 - standard-length steel bar; 302 - external thread. Detailed Description of the Preferred Embodiment

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0030] In the description and claims of the present utility model, terms such as "first", "second", etc. (if any) are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily imply the existence of "first". It should be understood that in the present utility model, "comprising" and "having" and any of their variations are intended to cover non-exclusive inclusion. It should be understood that in the present utility model, "a plurality of" means two or more. "And / or" is merely a description of the relationship between associated objects, indicating that three relationships may exist. For example, X and / or Y may represent three situations: X exists alone, X and Y exist simultaneously, and Y exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "Comprising X, Y, and Z", "comprising X, Y, Z" means that X, Y, and Z are all included, "comprising X, Y, or Z" means that one of X, Y, and Z is included, and "comprising X, Y, and / or Z" means that any one or any two or all three of X, Y, and Z are included.

[0031] The technical solution of the present utility model will be described in detail below with specific embodiments. These specific embodiments can be combined or replaced according to actual situations, and the same or similar concepts or processes may not be described again in some embodiments.

[0032] As Figures 1 to 3 shown, the present utility model provides a column base for a photovoltaic support, which includes a bottom plate 202, a sleeve 200 provided on the upper side of the bottom plate 202, and anchor bars provided on the lower side of the bottom plate 202. The lower end of the sleeve is welded to the bottom plate, and the anchor bars are composed of at least two standard-length steel bars 301 and are connected to the bottom plate 202 at the upper end. The entire column base is a pre-embedded part, and the anchor bars are fixed integrally with the concrete pile foundation after pouring. The length of the sleeve 200 is selected as needed, for example, within the range of 2 - 20 cm.

[0033] Since the wind pressure in different regions is different, the required length of the anchor bars is also different. In the column base of the present utility model, the anchor bars are composed of at least two standard-length steel bars. In this way, according to needs, either a single standard-length steel bar can be selected as the anchor bar, or two or more standard-length steel bars can be combined to form the anchor bar. Therefore, the length of the anchor bar can be flexibly adjusted to adapt to the wind pressure in different regions and improve the versatility of the column base.

[0034] In addition, the sleeve is welded to the bottom plate as a whole, which can be pre-welded in the factory to reduce the on-site welding workload. Through mechanized welding operations in the factory, the welding process quality can also be improved, the construction period can be reduced, and the overall safety performance of the power station can be improved.

[0035] In one of the embodiments, at least one end of the standard-length steel bar 301 is provided with an external thread 302 to form a threaded joint, and the connecting ends of two standard-length steel bars are connected to the threaded sleeve 300 through the external thread 302. This facilitates the combination of two or more standard-length steel bars to form anchor bars during on-site construction and has low technical requirements for construction workers. Of course, welding or other connection methods can also be used.

[0036] In one of the embodiments, the upper end of the anchor bar is welded to the bottom plate 202, that is, the upper end of the uppermost standard-length steel bar is welded to the bottom plate 202. It can also be pre-welded in the factory, and on-site, it can be selected whether to add standard-length steel bars for combination according to needs. Of course, threaded connection or other connection methods can also be used.

[0037] It can be understood that a stiffening rib 201 can also be welded between the bottom plate 202 and the casing 200. The stiffening rib is a strip-shaped strengthening member, which can improve the connection stability and torsional resistance between the bottom plate and the casing. For a square casing, a stiffening rib can be connected to each side, or it can be arranged on one side only, or on two of the sides. In addition, the stiffening rib 201 can be a rectangular plate with notches at two of the diagonal corners, which is convenient for welding.

[0038] It can be understood that a shear-resistant connector 203 can also be welded to the lower side of the bottom plate 202. Preferably, the shear-resistant connector 203 is a square steel pipe. The shear-resistant connector resists the shear force at the bottom of the column to prevent slippage between the bottom plate and the top surface of the foundation concrete.

[0039] In addition, the above-mentioned column base can be applied to a photovoltaic support with a reinforced concrete pile foundation. Among them, the photovoltaic support is provided with a plurality of columns, and the column includes a column body and the above-mentioned column base. As Figure 1 and Figure 2 shown, the lower end of the column body 100 is connected to the casing 200 by welding or other means, such as bolt connection.

[0040] Preferably, the lower end of the column body 100 is welded to the casing 200. Of course, bolt connection or other connection methods can also be used. Both the column body and the casing are square steel pipes. Of course, round steel pipes, aluminum alloy pipes, etc. can also be used.

[0041] The column body, the casing, and the shear-resistant connector can all be made of square steel pipes, which are standardized products, not only with high strength but also low cost, and are widely used in photovoltaic supports.

[0042] The column base, as a key node in the steel structure construction of the photovoltaic support, is a crucial part to ensure the safety and stability of the power station. Therefore, high requirements are put forward for the on-site welding workers. However, limited by the uneven level of construction workers, quality defects such as pores, slag inclusions, and cracks often occur. This embodiment proposes an integrated column base. On-site, only the column body needs to be welded to the column base, while all components in the column base, including the bottom plate, sleeve, stiffening rib, anchor bar, and shear connector, are pre-welded in the factory. Therefore, this integrated base greatly reduces the on-site welding workload, improves the welding process quality through mechanized welding operations in the factory, reduces the construction period, and improves the overall safety performance of the power station.

[0043] In addition to the above preferred embodiments, there are other embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection claimed by the present utility model.

Claims

1. A column base for a photovoltaic support, comprising a bottom plate, a sleeve disposed on the upper side of the bottom plate, and anchor bars disposed on the lower side of the bottom plate, characterized in that, The lower end of the casing is integrally welded to the bottom plate, and the anchor bars are composed of at least two standard-length steel bars and the upper ends are connected to the bottom plate.

2. The column base according to claim 1, characterized in that, The standard-length steel bars extend vertically and at least one end is provided with an external thread, and the connecting ends of the two standard-length steel bars are connected to the threaded sleeve through the external thread.

3. The column base according to claim 1, characterized in that, The upper end of the anchor bar is welded to the bottom plate.

4. The column base according to claim 1, characterized in that, A stiffening rib is welded between the bottom plate and the casing.

5. The column base according to claim 4, characterized in that, The stiffening rib is a rectangular plate with notches at two of its diagonal corners.

6. The column base according to claim 1, characterized in that, Shear connectors are welded to the lower side of the bottom plate.

7. The column base according to claim 6, characterized in that, The shear connectors are square steel pipes.

8. A photovoltaic support, characterized in that, The photovoltaic support is provided with a plurality of columns, and each column includes a column body and the column base according to any one of claims 1 to 7, and the lower end of the column body is connected to the casing.

9. A photovoltaic support according to claim 8, characterized in that, The lower end of the column body is welded to the casing.

10. A photovoltaic support according to claim 8, characterized in that, Both the column body and the casing are square steel pipes.

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