Stand column and cross straining beam connecting structure of photovoltaic support

Abstract

The utility model discloses a vertical column and transverse straining beam connecting structure of a photovoltaic support, which comprises vertical columns, transverse straining beams, connecting pieces and fastening assemblies, and is characterized in that the transverse straining beams are horizontally arranged, and two ends of each transverse straining beam are respectively connected with the adjacent vertical columns through the connecting pieces; a connecting groove with a T-shaped section is formed in the periphery of a main body of the section bar. The connecting piece is provided with a U-shaped enclasping part, at least one of two side walls of the U-shaped enclasping part is provided with an extending part, and the extending part extends outwards from the side edge of the side wall connected with the extending part; the U-shaped clasping part is used for clasping the end part of the transverse straining beam, the extending part is used for being attached to the outer surface of the stand column, and connecting holes are formed in the positions, corresponding to the connecting grooves in the sectional material, of the U-shaped clasping part and the extending part; the fastening assembly comprises a bolt and a nut, the head of the bolt is limited in the connecting groove of the sectional material, the rod portion of the bolt penetrates through the connecting hole in the connecting piece and then is fastened by the nut, and therefore fixed connection of the stand column and the transverse straining beam is achieved. The stand column and cross straining beam connecting structure is easy and convenient to assemble, can effectively improve the field construction efficiency, and has higher structural stability.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, and in particular to a column-beam connection structure for a photovoltaic support. Background Technology

[0002] In the photovoltaic energy field, photovoltaic (PV) brackets, as crucial structures supporting PV modules, significantly impact the performance and cost-effectiveness of the entire PV system due to their stability and assembly efficiency. Traditional PV bracket column-beam connection structures require drilling holes or openings in the columns 1' and beams 2' during assembly, followed by connection using bolt assemblies 3'. This method presents at least the following problems:

[0003] 1. On-site drilling or opening requires extremely high precision; any slight deviation may lead to a decrease in the overall stability and safety of the support structure.

[0004] 2. This assembly method involves multiple cumbersome construction steps, which not only increases installation costs but also significantly extends the construction period and reduces construction efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a column and crossbeam connection structure for a photovoltaic support, which is simple and convenient to assemble and has high structural stability.

[0006] To achieve the above objectives, the solution of this utility model is: a column-horizontal tie beam connection structure for a photovoltaic bracket, including a column, a horizontal tie beam, a connector, and a fastening assembly. The column is vertically supported between the roof and the ground of the photovoltaic bracket, and the horizontal tie beam is horizontally arranged with its two ends connected to the adjacent column through connectors.

[0007] The profiles used as the columns and tie beams have T-shaped connecting grooves on the outer periphery of their main body;

[0008] The connector has a U-shaped clamping part. At least one of the two side walls of the U-shaped clamping part is provided with an extension part, which extends outward from the side edge of the connected side wall. The U-shaped clamping part is used to clamp the end of the crossbeam, while the extension part is used to fit the outer surface of the column. Both the U-shaped clamping part and the extension part are provided with connection holes at positions corresponding to the connection grooves on the profile.

[0009] The fastening assembly includes bolts and nuts. The head of the bolt is limited in the connecting groove of the profile, and the shank of the bolt passes through the connecting hole on the connector and is tightened by the nut, thereby achieving a fixed connection between the column and the tie beam.

[0010] Furthermore, each of the two side walls of the U-shaped clamping part of the connector is provided with an extension, the two extensions extend in opposite directions and are located on the same horizontal plane.

[0011] Further, the connecting hole is an oval connecting hole.

[0012] Further, the minimum diameter of the connecting hole is greater than the diameter of the rod portion of the bolt and less than the outer diameter of the nut.

[0013] Further, the bolt is a T-shaped bolt. The head of the T-shaped bolt is a parallel hexagon, and among the opposite sides of the hexagon, one pair is the long sides and the other two pairs are the short sides.

[0014] Further, the connection part between the connecting groove of the profile and the main body is in a U-shaped structure. The U-shaped structure includes a horizontal side and two vertical sides. The two vertical sides are respectively located at both ends of the horizontal side and extend parallel in the same direction from both ends of the horizontal side.

[0015] Further, the connecting groove on the profile extends along the length direction of the main body, and both sides of the connecting groove have lateral openings.

[0016] Further, the cross-section of the profile used as the upright column and the horizontal tie beam is quadrilateral, pentagonal or octagonal.

[0017] Further, the number of connecting grooves distributed on the outer periphery of the profile is two, three or four.

[0018] After adopting the above solution, the beneficial effects of the present utility model are as follows:

[0019] The beneficial effects of the present utility model are mainly reflected in the following aspects:

[0020] Simple and convenient assembly:

[0021] In this solution, the profile with a connecting groove is used as the upright column and the horizontal tie beam. During assembly, it is配合连接件和紧固组件实现快速装配,克服了传统方式需现场打孔或开口的难题,大大简化了施工工序面积高工作效率,同时能够节省人力成本。

[0022] High structural stability:

[0023] The connecting piece has a U-shaped clamping part adapted to the horizontal tie beam and an extension part adapted to the upright column, which can better fit the profile and ensure seamless connection at the connection part. Through the tight fit between the connecting groove on the profile and the fastening component, the profile and the connecting piece are firmly connected, which can not only improve the stability and firmness of the connection, but also avoid the problem of weakening the strength of the profile caused by opening on the profile in the traditional method. Brief Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the connection structure of the upright column and the horizontal tie beam in the traditional photovoltaic bracket;

[0025] Figure 2 It should be noted that there is an unclear expression in the English translation of the content in line 31. Please check and correct it according to the actual situation. The approximate meaning is presented here for the time.This is a schematic diagram (at the corner) of the column and horizontal tie beam connection structure of a photovoltaic bracket according to an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram (straight edge) of the column and horizontal tie beam connection structure of a photovoltaic bracket according to an embodiment of this utility model;

[0027] Figure 4 This is a perspective view of the profile structure according to an embodiment of the present invention;

[0028] Figure 5 This is a perspective view of the connector structure according to an embodiment of the present invention;

[0029] Figure 6 This is a side view of the connector structure according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the fastening component structure according to an embodiment of the present invention;

[0031] Figure 8 This is a cross-sectional schematic diagram of the profile and fastening assembly according to an embodiment of the present invention;

[0032] Figure 9 yes Figure 8 Enlarged view of a portion of point A in the middle;

[0033] Figure 10 This is a schematic diagram of the installation of a T-bolt according to an embodiment of this utility model.

[0034] Label Explanation:

[0035] 1. Columns; 2. Tie beams;

[0036] 3. Connector; 31. U-shaped clamping part; 32. Extension part; 33. Connecting hole;

[0037] 4. Fastening components; 41. Bolts; 42. Nuts;

[0038] 5. Profile; 51. Main body; 52. Connecting groove; 53. Z-shaped structure; 531. Horizontal edge; 532. Vertical edge. Detailed Implementation

[0039] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] This utility model provides a column-to-beam connection structure for a photovoltaic support system, such as... Figures 2 to 10 As shown, it includes a column 1, a horizontal tie beam 2, a connector 3, and a fastening assembly 4. The column 1 is vertically supported between the roof and the ground of the photovoltaic bracket, and the horizontal tie beam 2 is horizontally arranged with its two ends connected and fixed to the adjacent column 1 through the connector 3.

[0041] In this design, the connection method between the profiles 5 differs from the conventional method of using drilled holes and screws. This design achieves a simpler and more stable connection through the cooperation of the connecting groove 52 on the profile 5 with the connector 3 and the fastening assembly 4. The specific structure is as follows:

[0042] like Figure 4 As shown, the profile 5, used as the main material for the column 1 and the tie beam 2, has a connecting groove 52 formed on its outer periphery during processing and forming by methods such as rolling. This connecting groove 52 serves as the installation point for fasteners, and its cross-section is T-shaped, i.e., it has a constricted structure, used for snapping fasteners in place.

[0043] like Figure 4 As shown, the connecting groove 52 on the profile 5 extends along the length of the main body 51, providing a wide and flexible sliding space for the bolt 41. This allows the bolt 41 to move freely within the connecting groove 52 along its length, thus providing as many installation point options as possible and ensuring that the bolt 41 can achieve a stable fixing effect in each ideal position. This further improves the efficiency and flexibility of on-site assembly construction.

[0044] Connector 3 is a key component for connecting two or more profiles 5. For example... Figure 5 and 6 As shown, the connector 3 has a U-shaped clamping part 31, which is used to clamp the end of the crossbeam 2. At least one of the two side walls of the U-shaped clamping part 31 has an extension part 32, which extends outward from the side edge of the connected side wall and is used to fit against the outer surface of the column 1. Here, a connection can be achieved with just one side wall having an extension part 32. However, to improve the stability of the connection, usually one extension part 32 is provided on each of the two side walls of the U-shaped clamping part 31. These two extension parts 32 extend in opposite directions and are located on the same horizontal plane; in other words, these two extension parts 32 are axially symmetrically distributed relative to the U-shaped clamping part 31. Thus, during installation, the U-shaped clamping part 31 clamps the crossbeam 2, while the extension parts 32 on both sides fit onto the columns 1 on both sides of the crossbeam 2, forming a more stable connection.

[0045] like Figure 5 and Figure 6 As shown, both the U-shaped clamping part 31 and the extension part 32 are provided with connecting holes 33 for mates with the connecting groove 52 and the fastening assembly 4. The fastening assembly 4 includes a bolt 41 and a nut 42. During installation, the head of the bolt 41 is limited in the connecting groove 52, while the shank of the bolt 41 passes through the connecting hole 33 on the connector 3 and is fastened by the nut 42, thereby achieving a fixed connection between the column 1 and the tie beam 2.

[0046] Preferably, the bolt 41 is a T-bolt 41, such as... Figure 7 and Figure 8 As shown, the head of the T-bolt 41 is a parallelepiped, with one pair of opposite sides being longer than the other two pairs being relatively shorter. The T-bolt 41 also mates with the connecting groove 52 on the profile 5 as follows (see reference). Figure 10 Slide the head of the T-bolt 41 into the connecting groove 52 through the side opening, and then rotate the T-bolt 41 at a certain angle so that its head is locked against the groove wall of the connecting groove 52. In this way, the T-bolt 41 can no longer slide in the connecting groove 52.

[0047] Regarding the connecting hole 33, its shape is usually circular, but it can also be elliptical. For example... Figure 5 and Figure 6 As shown, the design of the elliptical connecting hole 33 allows for a certain degree of fine-tuning during installation, ensuring precise alignment and tight fit between the profile 5 and the connector 3. Regardless of the shape of the connecting hole 33, it must meet the following requirements: the minimum diameter of the connecting hole 33 is greater than the diameter of the shank of the bolt 41, facilitating the passage of the shank of the bolt 41; and the minimum diameter of the connecting hole 33 is smaller than the outer diameter of the nut 42, thus limiting the movement of the nut 42.

[0048] Regarding the number of connecting slots 52 distributed on the profile 5, it includes, but is not limited to, two, three, or four connecting slots 52, and the specific number depends on the assembly requirements and application scenario. Regarding the shape of the profile 5, the profile 5 used as the column 1 and the crossbeam 2 can be designed with a quadrilateral, pentagonal, or octagonal cross-section according to the installation requirements in the photovoltaic bracket. In this embodiment, the profile 5 used as the column 1 has an axisymmetric octagonal cross-section and four connecting slots 52, while the profile 5 used as the crossbeam 2 has an axisymmetric rectangular cross-section and two connecting slots 52.

[0049] As a further improvement to the structure, the connection between the connecting groove 52 on the profile 5 and the main body 51 in this design is a Z-shaped structure 53. Specifically, as... Figure 8 and Figure 9 As shown, the Z-shaped structure 53 includes a horizontal side 531 and two vertical sides 532. The two vertical sides 532 are located at both ends of the horizontal side 531 and extend parallel to each other in the same direction from both ends of the horizontal side 531. During processing, these components are integrally formed with the main body 51. Compared with traditional sharp bends, this Z-shaped transition structure can effectively disperse stress and significantly reduce stress concentration, thus making the stress distribution at the connection more uniform and reasonable. It can effectively improve the fatigue resistance of the profile 5 during use and enhance structural stability.

[0050] The installation method of the column-cross tie beam connection structure of this utility model photovoltaic bracket is as follows:

[0051] First, fastening components 4 can be pre-connected to connector 3, that is, bolts 41 and nuts 42 are pre-connected to connector 3 without tightening nuts 42, leaving a certain space between the head of nuts 42 and bolts 41; then, connector 3 with fastening components 4 pre-connected is installed on column 1. The connection method is to slide the head of T-bolt 41 on extension 32 into the side opening of connecting groove 52 on column 1 and adjust it to the required position, and then tighten nuts 42; then, align the connecting groove 52 of crossbeam 2 with the U-shaped clamping part 31 of connector 3 on column 1, and similarly, slide the head of T-bolt 41 on U-shaped clamping part 31 into the side opening of upper connecting groove 52, and finally tighten nuts 42.

[0052] The above method involves first connecting the connector 3 to the column 1, and then connecting the horizontal tie beam 2. Alternatively, depending on the actual installation requirements, the method of first connecting the connector 3 to the horizontal tie beam 2, and then connecting it to the column 1, can be selected.

[0053] In actual photovoltaic support system construction scenarios, multiple columns 1 are distributed in a matrix. In this scheme, regardless of the horizontal tie beams 2 and the corners (refer to...), Figure 2 Regarding the connection between column 1 and the horizontal tie beam 2 and the straight edge (refer to...) Figure 3 In the case of connecting the column 1, the above-mentioned connector 3 and fastening component 4 can be used to fix it.

[0054] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components. Furthermore, the front, back, left, and right directions involved in this embodiment are only as a reference and do not represent the actual orientation in practical application.

[0055] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A post cross beam connection structure of a photovoltaic support, characterized by: The utility model relates to a photovoltaic support, which comprises a column (1), a cross beam (2), a connecting piece (3) and a fastening assembly (4), the column (1) is vertically supported between the roof and the ground of the photovoltaic support, the cross beam (2) is horizontally arranged and its two ends are connected with the adjacent columns (1) through the connecting pieces (3) respectively; The profile (5) used as the column (1) and the cross beam (2) has a T-shaped connecting groove (52) on the outer periphery of the main body (51); The connecting piece (3) has a U-shaped clamping part (31), at least one of the two side walls of the U-shaped clamping part (31) is provided with an extension (32) extending outward from the side edge of the connected side wall; the U-shaped clamping part (31) is used for clamping the end of the cross beam (2), and the extension (32) is used for abutting the outer surface of the column (1); the U-shaped clamping part (31) and the extension (32) are both provided with a connecting hole (33) at a position corresponding to the connecting groove (52) on the profile (5); The fastening assembly (4) comprises a bolt (41) and a nut (42), the head of the bolt (41) is limited in the connecting groove (52) of the profile (5), the rod of the bolt (41) passes through the connecting hole (33) on the connecting piece (3) and is fastened by the nut (42), so that the column (1) and the cross beam (2) are fixedly connected.

2. A post cross beam connection structure for a photovoltaic racking according to claim 1, characterized in that: The two side walls of the U-shaped clamping part (31) of the connecting piece (3) are both provided with an extension (32), the extension directions of the two extensions (32) are opposite and located on the same horizontal plane.

3. A post cross beam connection structure for a photovoltaic racking according to claim 1, characterized in that: The connecting hole (33) is an oval connecting hole (33).

4. A post cross beam connection structure for a photovoltaic racking according to claim 1, characterized in that: The minimum diameter of the connecting hole (33) is greater than the diameter of the rod of the bolt (41) and smaller than the outer diameter of the nut (42).

5. A post cross beam connection structure for a photovoltaic racking according to claim 1, wherein: The bolt (41) is a T-shaped bolt (41), the head of the T-shaped bolt (41) is a parallelepiped, one pair of the opposite sides of the parallelepiped is a long side, and the other two pairs of the opposite sides are short sides.

6. A post cross beam connection structure for a photovoltaic racking according to claim 1, characterized in that: The connecting groove (52) of the profile (5) and the main body (51) are connected in a U-shaped structure (53), the U-shaped structure (53) comprises a horizontal side (531) and two vertical sides (532), the two vertical sides (532) are located at the two ends of the horizontal side (531) and extend in the same direction from the two ends of the horizontal side (531).

7. A post cross beam connection structure for a photovoltaic racking according to claim 1, wherein: The connecting groove (52) on the profile (5) extends along the length direction of the main body (51), and the two sides of the connecting groove (52) have lateral openings.

8. A post cross beam connection structure for a photovoltaic racking according to claim 1, wherein: The profile (5) used as the column (1) and the cross beam (2) has a quadrilateral, pentagonal or octagonal cross section.

9. A post cross beam connection structure for a photovoltaic racking according to claim 1, wherein: The number of the connecting grooves (52) distributed on the outer periphery of the profile (5) is two, three or four.

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