A photovoltaic support post column foot device and photovoltaic support capable of adjusting direction

Abstract

This utility model discloses an adjustable photovoltaic support column base device and a photovoltaic support, belonging to the field of photovoltaic support technology, which can be installed even in small eaves gutters or drainage ditches. The column base device includes a column base connected to the column body, an upper column base plate integrally formed at the bottom of the column base, and a lower column base plate located below the upper column base plate and connected to the upper column base plate by fasteners. Both the upper and lower column base plates are rectangular plates. The lower column base plate has a first installation angle and a second installation angle. At the first installation angle, the length direction of the lower column base plate is consistent with the length direction of the upper column base plate, and at the second installation angle, the length direction is perpendicular to the length direction of the upper column base plate.

Description

Technical Field

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

[0002] For sloping roof types, most of which have platforms or small eaves gutters or drainage ditches along the north and south edges, if more components are to be installed on the sloping roof, more of the components need to protrude from the roof. Therefore, it is necessary to install columns for support at the eaves gutters or drainage ditches. However, the existing bases need to be placed in a north-south orientation, which may not be possible to install at smaller eaves gutters or drainage ditches. As a result, the protrusion must be cancelled, thus losing some component installation and reducing the profits of companies, farmers, and agents. Therefore, solving how to install the bases at smaller eaves gutters and drainage ditches has become a key consideration.

[0003] Previously, when agents encountered such situations, they would typically raise the inclined beams and extend them outwards to add additional diagonal bracing to the wall. However, this method is prone to failing to meet the spacing requirements between the hooks and the supports. Furthermore, in some self-built houses in the south, which are quite tall, installing diagonal bracing is difficult. If diagonal bracing is to be installed, scaffolding or suspended platforms need to be erected, which greatly increases the agent's construction costs and construction period. Utility Model Content

[0004] This utility model provides a photovoltaic support column base device and photovoltaic support with adjustable direction, which can be installed in small eaves gutters or drainage ditches.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] First, an adjustable photovoltaic support column base device is provided, including a column base connected to the column body, an upper column base plate integrally disposed at the bottom of the column base, and a lower column base plate disposed below the upper column base plate and connected to the upper column base plate by fasteners. Both the upper column base plate and the lower column base plate are rectangular plates. The lower column base plate has a first installation angle and a second installation angle. At the first installation angle, the length direction of the lower column base plate is consistent with the length direction of the upper column base plate, and at the second installation angle, the length direction is perpendicular to the length direction of the upper column base plate.

[0007] Preferably, the widths of the upper column base plate and the lower column base plate are equal, and the length of the upper column base plate is less than that of the lower column base plate; and / or, a concave-convex positioning structure is provided between the upper column base plate and the lower column base plate.

[0008] Preferably, the concave-convex positioning structure includes a row of convex toothed racks on the bottom surface of the upper column base plate and convex toothed blocks arranged in a rectangular array on the top surface of the lower column base plate, wherein the convex toothed racks are fitted into the gaps in the rectangular array of convex toothed blocks.

[0009] Preferably, the length direction of the convex toothed strip is perpendicular to the length direction of the upper column base plate; and / or, the convex toothed block is square.

[0010] Preferably, the fastener is an expansion bolt, and three bolt holes are distributed at intervals along the length direction at the midpoint of the width of the lower column base plate and the upper column base plate, with the middle bolt hole located at the center of the lower column base plate and the upper column base plate.

[0011] Preferably, the upper column base plate has arc-shaped clearance holes on both sides at the middle position of its length to avoid the expansion bolts.

[0012] Preferably, the upper column base plate is connected to positioning blocks that align with the width of the lower column base plate at the second installation angle.

[0013] Preferably, the upper column base plate is provided with a locking hole, and the positioning block is provided with a buckle that connects to the locking hole.

[0014] Preferably, the column body and the column base are nested inside and outside each other and fixed by lateral fastening bolts.

[0015] In addition, a photovoltaic support structure is also provided, including a column, wherein the column is provided with the aforementioned column foot device.

[0016] The present invention adopts the above technical solution and has the following beneficial effects:

[0017] 1. In the prior art, the upper and lower column base plates are connected and fixed to the eaves gutter or drainage ditch of the roof by fasteners. Both the upper and lower column base plates are rectangular plates with equal widths, and the length of the upper column base plate is less than that of the lower column base plate. The technical solution of this utility model, while maintaining the same size of the upper and lower column base plates, allows for changes in the structure and positional relationship between the upper and lower column base plates to enable installation in smaller eaves gutter or drainage ditch locations. Specifically, the lower column base plate has a first installation angle and a second installation angle. In the first installation state, at the first installation angle, the length direction of the lower column base plate is aligned with the length direction of the upper column base plate; in the second installation state, at the second installation angle, the length direction of the lower column base plate is perpendicular to the length direction of the upper column base plate. In the first installation configuration, the upper and lower column base plates function as a single unit with a total length of L1, which is the length of the lower column base plate. This configuration allows for installation in conventional eaves gutters or drainage ditches. In the second installation configuration, the upper and lower column base plates function as a single unit with a total length of L2, which is the length of the upper column base plate. This configuration allows for installation in smaller eaves gutters or drainage ditches. Therefore, this effectively solves the problem of columns being unable to be installed in smaller eaves gutters or drainage ditches, eliminating the need for additional diagonal bracing to the wall and avoiding increased construction costs and time associated with such bracing.

[0018] 2. Because a concave-convex positioning structure is provided between the upper and lower column base plates, misalignment between the upper and lower column base plates can be avoided, facilitating subsequent bolt fixing.

[0019] 3. Since the upper column base plate has a first installation angle and a second installation angle, the relative angle between the upper and lower column base plates can have two possibilities. To ensure that the concave-convex positioning structure functions effectively at both installation angles, the concave-convex positioning structure includes a row of convex toothed racks on the bottom surface of the upper column base plate and convex toothed blocks arranged in a rectangular array on the top surface of the lower column base plate. The convex toothed racks are fitted into the gaps in the rectangular array of convex toothed blocks. Thus, even after the upper column base plate rotates 90 degrees relative to the lower column base plate, it can still ensure that the convex toothed racks are fitted into the gaps in the rectangular array of convex toothed blocks.

[0020] 4. The length direction of the convex toothed strip is perpendicular to the length direction of the upper column base plate. The convex toothed strip and the upper column base plate can be integrally formed, which also increases the structural strength of the upper column base plate. In addition, the convex toothed blocks are square to facilitate the formation of equal gaps in both the longitudinal and transverse directions. Moreover, the array of convex toothed blocks can be integrally formed with the lower column base plate, which also increases the structural strength of the lower column base plate.

[0021] 5. The fasteners are expansion bolts. Three bolt holes are spaced apart along the length of the lower and upper column base plates at their midpoints, with the middle bolt hole located at the center of both plates. This method uses three expansion bolts to integrally fix the lower and upper column base plates to the roof, providing more effective connection points with the building, improving the stability of the photovoltaic support system, and enhancing its wind resistance.

[0022] 6. Since the upper column base plate has a first installation angle and a second installation angle, the relative angle between the upper and lower column base plates can have two possibilities. To ensure that the expansion bolts can be connected to the upper column base plate at the second installation angle, arc-shaped clearance holes are provided on both sides of the middle position of the upper column base plate to avoid the expansion bolts. This requires that the center distance between the two bolt holes on both sides of the three bolt holes be equal to the width of the upper column base plate. Thus, at the second installation angle, the two clearance holes correspond to the positions of the two bolt holes on both sides of the three bolt holes on the lower column base plate, thereby still ensuring that three expansion bolts can be used for fixing.

[0023] 7. Because the upper column base plate is connected to positioning blocks on both sides of the width of the lower column base plate at the second installation angle. Furthermore, the upper column base plate has locking holes, and the positioning blocks have buckles that connect to these holes. This not only positions the upper and lower column base plates relative to each other but also enhances the overall structural stability of the upper and lower column base plates.

[0024] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0025] The utility model will be further described below with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the photovoltaic support column foot device in the first installation state in an embodiment of this utility model;

[0027] Figure 2 This is a schematic diagram of the photovoltaic support column foot device in the first installation state in an embodiment of this utility model;

[0028] Figure 3 This is a schematic diagram of the photovoltaic support column foot device in the second installation state in an embodiment of this utility model;

[0029] Figure 4 This is a schematic diagram of the photovoltaic support column foot device in the second installation state in an embodiment of this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the upper column base plate in an embodiment of this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the upper column base plate in an embodiment of this utility model;

[0032] Figure 7 This is a schematic diagram of the structure of the upper column base plate in an embodiment of this utility model;

[0033] Figure 8 This is a schematic diagram of the structure of the upper column base plate in an embodiment of this utility model;

[0034] Figure 9 This is a schematic diagram of the structure of the lower column base plate in an embodiment of this utility model;

[0035] Figure 10 This is a schematic diagram of the structure of the column base in an embodiment of this utility model;

[0036] Figure 11 This is a schematic diagram of the expansion bolt structure in an embodiment of this utility model;

[0037] Reference numerals: 1. Column base, 11. Lateral fastening bolt, 2. Upper column base plate, 21. Raised toothed rack, 22. Bolt hole, 23. Clearance hole, 24. Locking hole, 25. Positioning block, 26. Glue injection hole, 3. Lower column base plate, 31. Raised toothed block, 4. Expansion bolt, 5. Column body, 6. Hinge. Detailed Implementation

[0038] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0039] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0040] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "south," and "north," which indicate orientation or positional relationships, are based solely on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0043] This embodiment relates to a photovoltaic (PV) bracket installed on a sloping roof. The sloping roof has small gutters or drainage ditches along both the north and south sides, and the PV bracket's support column base is located within these gutters or drainage ditches. (Refer to...) Figures 1 to 11 As shown, this embodiment provides an adjustable photovoltaic support column base device, including a column base 1 connected to the column body 5, an upper column base plate 2 and a lower column base plate 3 located below the column base 1, and fasteners connecting the upper column base plate 2 and the lower column base plate 3. The upper column base plate 2 is integrally formed at the bottom of the column base 1. Conventionally, the upper column base plate is a steel plate, and the column base is a square steel tube; the upper column base plate is welded to the bottom of the square steel tube. In the prior art, both the upper column base plate 2 and the lower column base plate 3 are rectangular plates, and their widths are equal, while the length of the upper column base plate 2 is less than that of the lower column base plate 3. Currently, the size of the lower column base plate is uniformly designed according to load-bearing requirements. Its length is perpendicular to the extension direction of the eaves gutter or drainage ditch, and its width is basically the same as or slightly smaller than that of a conventional eaves gutter or drainage ditch, thus allowing it to be installed within a conventional eaves gutter or drainage ditch. However, at smaller eaves gutters or drainage ditches, its length may exceed the width of a conventional eaves gutter or drainage ditches, making installation impossible. While maintaining the same size for the upper and lower column base plates, to enable installation at smaller eaves gutters or drainage ditches, the structural and positional relationship between the upper and lower column base plates can be modified. This allows for installation in both conventional and lateral configurations of the lower column base plate, satisfying most installation scenarios. The lower column base plate 3 has a first installation angle and a second installation angle, such as... Figure 1 and Figure 2As shown, in the first installation state, the lower column base plate 3 is at a first installation angle, and its length direction is consistent with the length direction of the upper column base plate; as Figure 3 and Figure 4 As shown, in the second installation state, the lower column base plate 3 is at a second installation angle, and its length direction is perpendicular to the length direction of the upper column base plate. In the first installation state, the upper and lower column base plates are integrated as a whole, with a total length of L1, which is the length of the lower column base plate, and can be installed in a conventional eaves gutter or drainage ditch. In the second installation state, by adjusting the direction of the lower column base plate without changing the orientation of the column, the upper and lower column base plates are integrated as a whole, with a total length of L2, which is the length of the upper column base plate, and can be installed in a smaller eaves gutter or drainage ditch. Therefore, this effectively solves the problem of columns not being able to be installed in smaller eaves gutters or drainage ditches, thus eliminating the need for additional diagonal bracing to the wall and avoiding the increased construction costs and time caused by additional diagonal bracing.

[0044] Of course, it is understandable that this implementation method is also for situations where the size of the upper column base plate and the lower column base plate remains unchanged, and the length of the upper column base plate is basically the same as or slightly smaller than the width of a smaller eaves gutter or drainage ditch.

[0045] In some embodiments, a concave-convex positioning structure is provided between the upper column base plate 2 and the lower column base plate 3. This can prevent misalignment between the upper column base plate and the lower column base plate, facilitating subsequent bolt fixing.

[0046] Since the upper column base plate has a first installation angle and a second installation angle, the relative angle between the upper and lower column base plates can be either one. To ensure that the concave-convex positioning structure functions effectively at both installation angles, the concave-convex positioning structure includes a row of convex toothed racks 21 on the bottom surface of the upper column base plate and convex toothed blocks 31 arranged in a rectangular array on the top surface of the lower column base plate. The convex toothed racks 21 are fitted into the gaps in the rectangular array of convex toothed blocks. Thus, even after the upper column base plate rotates 90 degrees relative to the lower column base plate, it can still ensure that the convex toothed racks are fitted into the gaps in the rectangular array of convex toothed blocks.

[0047] Specifically, the length direction of the convex toothed strip is perpendicular to the length direction of the upper column base plate. Furthermore, the area where the convex toothed strip is located is at the centroid of the upper column base plate, with a bolt hole passing through this area. The convex toothed strip can be integrally formed with the upper column base plate, thus increasing the structural strength of the upper column base plate. Additionally, the convex toothed blocks in the array are square to facilitate the formation of equal gaps in both the longitudinal (north-south direction) and transverse (east-west direction) directions of the building. Moreover, the array of convex toothed blocks can be integrally formed with the lower column base plate, also increasing the structural strength of the lower column base plate.

[0048] In some embodiments, the fastener is an expansion bolt 4, and three bolt holes 22 are spaced apart along the length of the lower and upper column base plates at their midpoints, with the middle bolt hole located at the center of the lower and upper column base plates. This method of using three expansion bolts to integrally fix the lower and upper column base plates to the roof provides more effective connection points with the building, improves the stability of the photovoltaic support system, and enhances its wind resistance.

[0049] Since the upper column base plate has a first installation angle and a second installation angle, the relative angle between the upper column base plate and the lower column base plate can have two possibilities. To ensure that the expansion bolts can be connected to the upper column base plate at the second installation angle, arc-shaped clearance holes 23 are provided on both sides of the middle position of the upper column base plate 2 to avoid the expansion bolts. This requires that the distance between the centers of the two bolt holes on both sides of the three bolt holes be equal to the width of the upper column base plate. In this way, at the second installation angle, the two clearance holes 23 correspond to the positions of the two bolt holes on both sides of the three bolt holes on the lower column base plate, thus ensuring that three expansion bolts can still be used for fixing.

[0050] Furthermore, the upper column base plate 2 is connected to positioning blocks 25 that engage with the width sides of the lower column base plate when the second installation angle is reached. This not only positions the upper column base plate 2 and the lower column base plate 3 relative to each other but also enhances the overall structural stability of the upper column base plate 2 and the lower column base plate 3. The upper column base plate is provided with locking holes 24, and the positioning blocks 25 are provided with buckles that connect to the locking holes 24. Additionally, glue can be injected for fixation, with glue injection holes 26 provided to enhance the fixing reliability of the positioning blocks.

[0051] Referring to existing technology, the column body 5 and the column base 1 are nested internally and externally and fixed by lateral fastening bolts 11. The upper end of the column body 5 is hinged to the hinge member 6, and the hinge member 6 is fixed to the inclined beam of the photovoltaic bracket by bolts. In addition, other structures of the photovoltaic bracket can refer to existing technology.

[0052] In this embodiment, the column body is a square tube, and the column base is also a square tube, specifically an aluminum alloy or stainless steel square tube. This not only provides corrosion resistance but also high strength and a long service life. Furthermore, it allows for large-scale industrial production, which helps reduce costs.

[0053] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A photovoltaic support column base device with adjustable orientation, characterized in that, The device includes a column base connected to the column body, an upper column base plate integrally disposed at the bottom of the column base, and a lower column base plate disposed below the upper column base plate and connected to the upper column base plate by fasteners. Both the upper column base plate and the lower column base plate are rectangular plates. The lower column base plate has a first installation angle and a second installation angle. At the first installation angle, the length direction of the lower column base plate is consistent with the length direction of the upper column base plate, and at the second installation angle, the length direction is perpendicular to the length direction of the upper column base plate.

2. A photovoltaic racking post foot assembly according to claim 1, wherein, The upper and lower column base plates have equal widths, and the upper column base plate has a shorter length than the lower column base plate; and / or, a concave-convex positioning structure is provided between the upper and lower column base plates.

3. A photovoltaic racking post foot assembly according to claim 2, wherein, The concave-convex positioning structure includes a row of convex toothed racks on the bottom surface of the upper column base plate and convex toothed blocks arranged in a rectangular array on the top surface of the lower column base plate. The convex toothed racks are fitted into the gaps in the rectangular array of convex toothed blocks.

4. A photovoltaic racking post foot assembly according to claim 3, wherein, The length direction of the convex toothed rack is perpendicular to the length direction of the upper column base plate; and / or, the convex toothed block is square.

5. The photovoltaic mounting racking post foot assembly of claim 1, wherein, The fastener is an expansion bolt. Three bolt holes are distributed at intervals along the length direction at the middle position of the width of the lower column base plate and the upper column base plate, and the middle bolt hole is located at the center of the lower column base plate and the upper column base plate.

6. A photovoltaic racking post foot assembly according to claim 5, wherein, The upper column base plate has arc-shaped clearance holes on both sides at the middle position of its length to avoid expansion bolts.

7. The photovoltaic mounting racking post foot assembly of claim 5, wherein, The upper column base plate is connected to positioning blocks that align with the width of the lower column base plate at the second installation angle.

8. A photovoltaic racking post foot assembly according to claim 7, wherein, The upper column base plate is provided with a locking hole, and the positioning block is provided with a buckle that connects to the locking hole.

9. The photovoltaic racking post foot assembly of claim 1, wherein, The column body and the column base are nested inside and outside each other and fixed by lateral fastening bolts.

10. A photovoltaic mount comprising a post, characterized in that, The column is provided with a column base device as described in any one of claims 1 to 9.

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