A connection structure for connecting ground piles and inclined beams of a solar photovoltaic support.

Abstract

This utility model discloses a connection structure between a solar photovoltaic support pile and an inclined beam connector, belonging to the field of photovoltaic support technology. It includes: an inclined beam connector, a support pile, and a flat washer. The inclined beam connector comprises a crossbeam, a support beam, and a bolt mounting part. The crossbeam connects two support beams. The bolt mounting part is located below the support beam and has bolt holes symmetrically arranged vertically. The support pile has an internal mounting groove. Bolt holes are provided on both sides above the mounting groove, and arc-shaped mounting holes are provided on both sides below the bolt holes. The flat washer has the same shape and structure as the bolt mounting part. The inclined beam connector is inserted into the mounting groove. The bolt holes on the upper part of the bolt mounting part correspond to the mounting holes on both sides of the mounting groove, and the lower bolt holes correspond to the arc-shaped mounting holes. The connection is secured with bolts, and a flat washer is placed between the bolt and the bolt hole. This utility model improves the lateral load of the connection node, reduces stress concentration by using a washer, and has strong applicability.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, specifically to a connection structure between the ground pile and the inclined beam of a solar photovoltaic support. Background Technology

[0002] The ground pile and inclined beam connector in a solar photovoltaic (PV) support system is one of the key load-bearing nodes of the entire structure. Its function is to reliably connect the underground ground piles (foundation) and the inclined beams (or main beams) supporting the PV modules, and to transfer the upper loads (module weight, wind pressure, snow pressure, etc.) to the foundation. Its design and selection directly affect the stability, safety, and durability of the system.

[0003] Traditional connection methods are shown in the attached diagram. Figure 5 As shown, the inclined beam connector and the ground pile are installed by a single bolt. Under lateral force, the load capacity of the connection is low and it is prone to torsion. Moreover, when the bolt is tightened, excessive tightening force will cause stress concentration at the installation position, which will damage the inclined beam connector and the ground pile. Utility Model Content

[0004] The purpose of this utility model is to provide a connection structure for the connection between the ground pile and the inclined beam of a solar photovoltaic support to solve the above problems, improve the lateral load capacity, have strong applicability, and reduce stress concentration during bolt installation.

[0005] Technical Solution: This utility model provides a connection structure for a solar photovoltaic support pile and an inclined beam connector, including: an inclined beam connector, a support pile, and a flat washer. The inclined beam connector includes a crossbeam, a support beam, and a bolt mounting part. Two support beams are connected below the crossbeam. The bolt mounting part is located below the support beams and is shaped like a racetrack. Bolt holes are symmetrically arranged above and below the bolt mounting part. The support pile is placed on the ground and has an installation groove inside. Bolt holes are provided on both sides above the installation groove, and arc-shaped installation holes are provided on both sides below the bolt holes. The flat washer has the same shape and structure as the bolt mounting part. The inclined beam connector is inserted into the installation groove. The bolt holes at the top of the bolt mounting part correspond to the installation holes on both sides of the installation groove, and the bolt holes at the bottom of the bolt mounting part correspond to the arc-shaped installation holes. Two bolts pass through the two bolt holes at the top and bottom of the bolt mounting part, and a flat washer is placed between the bolts and the bolt holes to fix the inclined beam connector and the support pile.

[0006] Furthermore, in the aforementioned connection structure of the solar photovoltaic support pile and inclined beam connector, there are two support beams, symmetrically arranged below the crossbeam, and with an inwardly curved arc.

[0007] Furthermore, in the aforementioned connection structure of the solar photovoltaic support pile and inclined beam connector, the crossbeam, support beam, and bolt mounting part are manufactured as a single unit.

[0008] Furthermore, in the aforementioned connection structure of the solar photovoltaic support pile and inclined beam connector, a screw hole is provided in the middle of the bolt mounting part, and a self-tapping screw is driven into the screw hole to enhance the connection strength.

[0009] Furthermore, in the aforementioned connection structure of the solar photovoltaic support pile and inclined beam connector, auxiliary holes are provided above and below the screw drilling holes.

[0010] Furthermore, in the aforementioned connection structure of the solar photovoltaic support pile and inclined beam connector, the arc-shaped mounting hole is arc-shaped, with a width equal to the diameter of the upper and lower bolt holes of the bolt mounting part, and the radius of the arc is the distance between the upper and lower bolt holes of the bolt mounting part.

[0011] Furthermore, in the aforementioned connection structure between the solar photovoltaic support pile and the inclined beam connector, an M12 bolt is inserted through the bolt holes on the inclined beam connector and the support pile for through-installation.

[0012] As can be seen from the above technical solution, this utility model has the following beneficial effects: The connection structure of the solar photovoltaic support pile and inclined beam connector described in this utility model sets up a bolt mounting part for the traditional single bolt hole inclined beam connector. The bolt mounting part is designed with symmetrical upper and lower bolt holes. The upper hole corresponds to the mounting holes on both sides of the support pile mounting groove, and the lower hole corresponds to the arc-shaped mounting hole. When rotating, the bolt installed in the upper hole is the rotation center, and the lower hole bolt can slide in the arc-shaped mounting hole, which effectively improves the lateral load capacity of the connection node. A screw drill hole is also provided in the middle of the bolt mounting part, which can flexibly install fasteners according to different load levels. A flat washer is also provided to increase the force-bearing area when the bolts and self-tapping screws are tightened, reduce stress concentration at the installation position, and prevent damage to the support pile and inclined beam connector. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the connection structure of a solar photovoltaic support pile and inclined beam connector according to the present invention;

[0014] Figure 2 This is a schematic diagram of the inclined beam connector of this utility model;

[0015] Figure 3 This is a schematic diagram of the support pile of this utility model;

[0016] Figure 4 This is a schematic diagram of the flat gasket of this utility model;

[0017] Figure 5 This is a schematic diagram of the connection structure between a traditional inclined beam connector and a support pile.

[0018] In the diagram: 1. Inclined beam connector, 2. Support pile, 3. Flat washer, 11. Crossbeam, 12. Bolt mounting part, 13. Arc-shaped mounting hole, 21. Screw hole, 131. Auxiliary hole, 132. Detailed Implementation

[0019] Example 1

[0020] like Figure 1-4 The diagram illustrates a connection structure between a solar photovoltaic support pile and an inclined beam connector, comprising: an inclined beam connector 1, a support pile 2, and a flat washer 3. The inclined beam connector 1 includes a crossbeam 11, a support beam 12, and a bolt mounting part 13. Two support beams 12 are connected below the crossbeam 11. The bolt mounting part 13 is located below the support beams 12 and is shaped like a racetrack, with bolt holes symmetrically arranged above and below it. The support pile 2 is placed on the ground and has an installation groove inside. Bolt holes are provided on both sides above the installation groove, and arc-shaped installation holes 21 are provided on both sides below the bolt holes. The flat washer 3 has the same shape and structure as the bolt mounting part 13. The inclined beam connector 1 is inserted into the installation groove. The bolt holes on the upper part of the bolt mounting part 13 correspond to the installation holes on both sides of the installation groove, and the bolt holes on the lower part of the bolt mounting part 13 correspond to the arc-shaped installation holes 21. Two bolts pass through the upper and lower bolt holes of the bolt mounting part 13, with the flat washer 3 placed between the bolts and the bolt holes, thus fixing the inclined beam connector 1 and the support pile 2 together. A bolt mounting section 13 is provided, featuring symmetrical upper and lower bolt holes. During rotation, the bolt in the upper hole serves as the center of rotation, while the bolt in the lower hole can slide within the arc-shaped mounting hole 21, effectively improving the lateral load capacity of the connection node. To test the lateral load, after the inclined beam connector 1 and the support pile 2 are installed, an electronic crane scale is used to read the tensile force data. One side of the electronic crane scale holds the inclined beam connector 1, while the other side is connected to a lever hoist. The lever hoist is then connected to a stationary forklift (or other stationary heavy object). Figure 5 The traditional inclined beam connector and the support pile connection structure have a lateral load of 400KG as tested, while the lateral load test result of this scheme is 900KG.

[0021] like Figure 2 The diagram shows a connection structure between a solar photovoltaic support pile and an inclined beam connector. The support beam 12 has two beams, which are symmetrically arranged below the crossbeam 11 and have an inwardly curved arc.

[0022] like Figure 2 , 3The diagram illustrates a connection structure between a solar photovoltaic support pile and an inclined beam. The arc-shaped mounting hole 21 is circular, with a width equal to the diameter of the upper and lower bolt holes of the bolt mounting part 13. The radius of the arc is the distance between the upper and lower bolt holes of the bolt mounting part 13. During rotation, the bolt in the upper hole serves as the center of rotation, while the bolt in the lower hole can slide within the arc-shaped mounting hole 21, effectively improving the lateral load capacity of the connection node.

[0023] In this embodiment, M12 bolts are inserted through the bolt holes on the inclined beam connector 1 and the support pile 2 for through installation.

[0024] Example 2

[0025] Based on Example 1, in this example, as... Figure 2 The diagram illustrates a connection structure between a solar photovoltaic support pile and an inclined beam. The bolt mounting portion 13 has a screw hole 131 in the center, into which a self-tapping screw is driven to strengthen the connection. The self-tapping screw used is an ST5.5 self-tapping screw. Using the same load testing method as in Example 1, but with the added self-tapping screw for enhanced fixation, the measured load is 1500 kg.

[0026] like Figure 4 The diagram shows a connection structure for a solar photovoltaic support pile and inclined beam connector. The flat washer 3 has symmetrical bolt holes on the top and bottom and a screw hole in the middle. The screw holes correspond to the bolt holes and screw drill holes 131 of the bolt mounting part 13.

[0027] In this embodiment, the crossbeam 11, the support beam 12, and the bolt mounting part 13 are made as a single piece, which improves the overall strength of the inclined beam connector 1.

[0028] like Figure 2 The diagram illustrates a connection structure for a solar photovoltaic support pile and inclined beam connector, wherein auxiliary holes 132 are provided above and below the screw drill hole 131. This reduces stress concentration at the edge of the screw drill hole, improves fatigue resistance, facilitates installation, and achieves localized weight reduction.

[0029] It should be noted that the above description is merely a technical solution of the utility model and not a limitation. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of the utility model without departing from the scope of the present utility model, and all such modifications and substitutions should be covered within the scope of the claims of the present utility model.

Claims

1. A connection structure for connecting the ground pile and inclined beam of a solar photovoltaic support, characterized in that: include: Inclined beam connector (1), the inclined beam connector (1) includes a crossbeam (11), a support beam (12), and a bolt mounting part (13). The crossbeam (11) is connected to two support beams (12) below. The bolt mounting part (13) is located below the support beams (12). The bolt mounting part (13) is shaped like a runway. Bolt holes are symmetrically arranged on the upper and lower sides of the bolt mounting part (13). The support pile (2) is set on the ground. The support pile (2) has an installation groove inside. Bolt holes are provided on both sides above the installation groove, and arc-shaped installation holes (21) are provided on both sides below the bolt holes. Flat washer (3), the shape and structure of which are the same as those of bolt mounting part (13); The inclined beam connector (1) is inserted into the mounting groove. The bolt holes on the upper part of the bolt mounting part (13) correspond to the mounting holes on both sides of the mounting groove. The bolt holes on the lower part of the bolt mounting part (13) correspond to the arc-shaped mounting holes (21). Two bolts pass through the upper and lower bolt holes of the bolt mounting part (13), and a flat washer (3) is set between the bolt and the bolt hole to fix the inclined beam connector (1) and the support pile (2).

2. The connection structure of the solar photovoltaic support pile and inclined beam connector according to claim 1, characterized in that: There are two support beams (12), which are symmetrically arranged below the crossbeam (11) and have an inward curvature.

3. The connection structure of the solar photovoltaic support pile and inclined beam connector according to claim 1, characterized in that: The crossbeam (11), support beam (12), and bolt mounting part (13) are made as a single unit.

4. The connection structure of the solar photovoltaic support pile and inclined beam connector according to claim 1, characterized in that: The bolt mounting part (13) has a screw hole (131) in the middle, and a self-drilling screw is driven into the screw hole (131) to strengthen the connection.

5. The connection structure of the solar photovoltaic support pile and inclined beam connector according to claim 4, characterized in that: The screw hole (131) is provided with auxiliary holes (132) on the top and bottom.

6. The connection structure of the solar photovoltaic support pile and inclined beam connector according to claim 1, characterized in that: The arc-shaped mounting hole (21) is arc-shaped, with a width equal to the diameter of the upper and lower bolt holes of the bolt mounting part (13), and the radius of the arc is the distance between the upper and lower bolt holes of the bolt mounting part (13).

7. The connection structure of the solar photovoltaic support pile and inclined beam connector according to claim 1, characterized in that: M12 bolts are inserted through the bolt holes on the inclined beam connector (1) and the support pile (2) for installation.

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