A connecting device for a solar photovoltaic support and a solar photovoltaic support

Abstract

The application discloses a connecting device for a solar photovoltaic support and the solar photovoltaic support, and the connecting device comprises a groove seat, an adapter groove and a connecting piece which are connected in sequence. The top of the groove seat is provided with a first clamping groove and a first clamping plate, the top of the adapter groove is provided with two second clamping grooves in the shape of an arc, the inner side of the second clamping groove is provided with an inner support plate, the outer side is provided with a second clamping plate, and the shoulder of the adapter groove is provided with a clamping part. The top of the connecting piece is provided with a third clamping groove and a clamping strip, the bottom is provided with an oval connecting body, an outer hanging ear, a middle pressing block and an inner clamping block. When assembled, the adapter groove is inserted into the first clamping groove to make the first clamping plate clamped with the clamping part, the connecting body is embedded into the second clamping groove and is flipped to make the second clamping plate clamped with the outer hanging ear, and the inner clamping block is clamped with the middle pressing block to clamp the inner support plate. The second clamping groove is internally provided with a limiting block, and the two ends of the connecting body abut against the limiting block for limiting. The application adopts the clamping structure, is simple and efficient to install, and is reliable and stable in connection.

Description

Technical Field

[0001] This invention relates to the field of solar photovoltaic power generation equipment technology, and in particular to a connection device for a solar photovoltaic support and a solar photovoltaic support. Background Technology

[0002] Solar photovoltaic (PV) mounting systems are crucial structural components used to support PV panel modules in a solar photovoltaic power generation system. Traditionally, during installation, the various components of a solar PV mounting system are typically fixed together using methods such as welding or screws.

[0003] However, welding connections require on-site welding operations, which have a long construction period and require highly skilled construction personnel, making it difficult to improve installation efficiency; screw connections require tightening each bolt individually, which is cumbersome, slow to install, and requires the corresponding tools, increasing construction costs.

[0004] Therefore, how to provide a connection device for solar photovoltaic brackets and a solar photovoltaic bracket is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] One objective of this invention is to provide a connection device for a solar photovoltaic support and a solar photovoltaic support itself. This invention can improve installation efficiency and save construction costs.

[0006] According to an embodiment of the present invention, a connecting device for a solar photovoltaic bracket and a solar photovoltaic bracket include a slot base, a transition slot, and a connector that are sequentially snapped together. The slot base has a continuous first snap-fit ​​slot at its top, and first snap-fit ​​plates are provided on both sides of the first snap-fit ​​slot. The transition slot has two arc-shaped second snap-fit ​​slots at its top, with an inner support plate on the inner side and a second snap-fit ​​plate on the outer side of each second snap-fit ​​slot, and a snap-fit ​​portion on the shoulder of the transition slot. The connector has a third snap-fit ​​slot at its top, with snap-fit ​​strips on both sides of the third snap-fit ​​slot for connecting a front column, a rear column, or other components; the bottom of the connector has an elliptical connecting body, an external mounting lug, a central pressure block, and an internal clamping block.

[0007] Preferably, a limiting block is fixed in the second snap-fit ​​groove. After the connector is fully embedded in the second snap-fit ​​groove, both ends of the connector abut against the corresponding limiting blocks to limit the displacement of the connector along the length direction of the second snap-fit ​​groove.

[0008] Preferably, the connecting body is provided with an abutting part, which abuts against the inner support plate from the inside and, together with the middle pressure block, clamps the inner support plate.

[0009] Preferably, the bottom end of the external mounting ear abuts against the top end of the first snap-fit ​​plate.

[0010] Preferably, the connector adopts a split design, including a lower base plate and an upper rotating body. The connector, external lug, middle pressure block and inner clamping block are disposed at the bottom of the base plate, and the third snap-fit ​​groove and snap-fit ​​strip are disposed on the rotating body.

[0011] Preferably, the base plate and the rotating body are rotatably connected by a connecting shaft. The connecting shaft is in the shape of a boss. After passing through the countersunk hole on the rotating body, the connecting shaft is screwed into the threaded hole of the base plate for fixation, so that the rotating body can rotate about the connecting shaft as an axis.

[0012] Preferably, the base plate has an arc-shaped limiting groove, and a limiting pin is fixed at the bottom of the rotating body. The limiting pin is inserted into the limiting groove, and when the rotating body rotates relative to the base plate, the limiting pin slides along the limiting groove.

[0013] A solar photovoltaic bracket includes a front column, a rear column, and the aforementioned connecting device. The front column and the rear column are connected to their respective connectors in the same way: the bottom of the front column or the rear column is embedded in the third snap-fit ​​groove, so that the snap-fit ​​strip is engaged with the weight-reducing hole on the side of the front column or the rear column, thereby fixing the front column or the rear column in the third snap-fit ​​groove.

[0014] Preferably, the device further includes a ballast plate, with both ends of the ballast plate connected to corresponding connectors. Connecting blocks are fixed at the bottom of both ends of the ballast plate, and the ballast plate is installed by engaging the connecting blocks with the connectors.

[0015] Preferably, it further includes a side baffle installed between the front column and the rear column, and a rear baffle installed between the rear columns.

[0016] Preferably, it also includes photovoltaic panel assemblies installed and fixed on the tops of the two front columns and the two rear columns.

[0017] Preferably, the two front columns are installed on the same slot, and the two rear columns are installed on the same slot, wherein the slot is installed horizontally.

[0018] The beneficial effects of this invention are: This invention employs a three-stage structure consisting of a slot, an adapter slot, and a connector that are sequentially snapped together, enabling fully snap-fit ​​installation without the need for welding or screw connections. This simplifies and speeds up the process, thereby improving installation efficiency and effectively saving on operating costs.

[0019] This invention, by fixing a limiting block inside the adapter groove and having the connector fully embedded in the second snap-fit ​​groove with its two ends abutting against the limiting block, can limit the displacement of the connector along the length direction of the second snap-fit ​​groove, thereby improving the accuracy of the installation position and the long-term stability of the connection.

[0020] This invention, by designing the connector as an ellipse and combining it with a second, curved groove, enables the connector to be quickly tilted and inserted and flipped to lock, simplifying the assembly process and shortening the installation time.

[0021] The present invention has a multi-fixing structure, which includes a second snap-fit ​​plate that snaps into the outer ear, an inner clamping block and a middle pressure block that clamp the inner support plate from both sides, and the bottom end of the outer ear that abuts against the top of the first snap-fit ​​plate. This structure can effectively enhance the connection stability between the components and improve the overall structural strength.

[0022] This invention adopts a split design for the connector, including a base plate and a rotating body, and connects the two by a connecting shaft. This allows the rotating body to rotate flexibly relative to the base plate, and the angle can be adjusted according to actual installation needs, thereby enhancing the versatility and adaptability of the connecting device. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a connection device for a solar photovoltaic support proposed in this invention; Figure 2 This is a schematic diagram of the slot seat in this invention; Figure 3 This is a schematic diagram of the structure of the transfer groove in this invention; Figure 4 This is a top view of the adapter groove in this invention; Figure 5 This is a schematic diagram of the connector structure in this invention; Figure 6 This is a partial cross-sectional schematic diagram of the assembly state of the connecting device of the present invention; Figure 7 This is a schematic diagram of the structure of the solar photovoltaic support of the present invention; Figure 8 This is a schematic diagram of the installation position of the ballast plate of the present invention; Figure 9 This is a schematic diagram of the ballast plate connection structure of the present invention; Figure 10 This is a schematic diagram showing the installation positions of the side baffle and the rear baffle of the present invention; Figure 11 This is a schematic diagram of the installation position of the photovoltaic panel module of the present invention; Figure 12 This is a schematic diagram of the assembly process of the connector and the adapter groove of the present invention; Figure 13 This is a schematic diagram of another embodiment of the connector of the present invention; Figure 14 This is a schematic diagram of the connection structure between the base plate and the rotating body of the present invention; Figure 15 This is a schematic diagram of another installation style of the solar photovoltaic bracket of the present invention.

[0024] In the diagram: 1. Slot base; 11. First snap-fit ​​slot; 12. First snap-fit ​​plate; 2. Adapter slot; 21. Second snap-fit ​​slot; 211. Inner support plate; 212. Second snap-fit ​​plate; 22. Limiting block; 23. Snap-fit ​​part; 3. Connector; 31. Third snap-fit ​​slot; 32. Connecting body; 321. Abutment part; 33. External mounting ear; 34. Middle pressure block; 35. Inner clamping block; 36. Snap-fit ​​strip; 37. Base plate; 371. Connecting shaft; 372. Limiting slot; 38. Rotating body; 4. Front column; 5. Rear column; 6. Ballast plate; 61. Connecting block; 7. Side baffle; 8. Rear baffle; 9. Photovoltaic panel module. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0026] Example 1 refer to Figure 1 A connection device for solar photovoltaic brackets, comprising a slot 1, an adapter slot 2, and a connector 3 that are sequentially snapped together.

[0027] like Figure 2 As shown, the top of the slot 1 is provided with a continuous first snap-fit ​​slot 11, and the first snap-fit ​​plates 12 are provided on both sides of the first snap-fit ​​slot 11.

[0028] like Figure 3 As shown, the top of the adapter groove 2 is provided with two arc-shaped second snap-fit ​​grooves 21, the inner side of the second snap-fit ​​groove 21 is provided with an inner support plate 211, the outer side is provided with a second snap-fit ​​plate 212, and the shoulder of the adapter groove 2 is provided with a snap-fit ​​part 23.

[0029] Furthermore, a limit block 22 is fixed within the second card slot 21, such as... Figure 4 As shown, there are multiple limit blocks 22, which are used to limit the installation position of the connector 3.

[0030] like Figure 5As shown, the top of the connector 3 is provided with a third snap-fit ​​groove 31, and two snap-fit ​​strips 36 are provided on both sides of the groove for connecting the front column 4, the rear column 5 or other components. The bottom of the connector 3 is provided with an elliptical cylindrical connector 32, an external mounting lug 33, a middle pressure block 34 and an internal clamping block 35.

[0031] like Figure 6 and Figure 12 As shown, during assembly, the bottom of the adapter slot 2 is aligned with the first snap-fit ​​slot 11 of the slot seat 1 and inserted, so that the first snap-fit ​​plate 12 is snapped onto the snap-fit ​​part 23 of the adapter slot 2, thereby achieving a snap-fit ​​connection between the slot seat 1 and the adapter slot 2.

[0032] Tilt the connector 3 so that the elliptical cylindrical connector 32 is embedded in a second locking groove 21. Then, flip it in the direction of the arrow in the figure so that the connector 32 is fully embedded in the second locking groove 21. At this time, both ends of the connector 32 are stopped and limited by two limiting blocks 22, thereby restricting the displacement of the connector 3 in the length direction of the second locking groove 21 and preventing its axial movement. At the same time, as Figure 6 As shown, the second snap-fit ​​plate 212 snaps into the outer ear 33, and the inner clamping block 35 and the middle pressure block 34 clamp and fix the inner support plate 211 from both sides. The bottom end of the outer ear 33 presses against the top end of the first snap-fit ​​plate 12, which improves the snap-fit ​​stability between the second snap-fit ​​plate 212 and the outer ear 33.

[0033] The elliptical cylindrical connector 32 has a smaller lateral width when tilted, making it easier to enter the top opening of the second snap-fit ​​groove 21. After entering the snap-fit ​​groove 21, it flips over, flattens its major diameter, and the outer wall abuts against the horizontal diameter of the second snap-fit ​​groove 21, making it difficult for the horizontally placed connector 32 to come out directly from the snap-fit ​​groove, thus achieving an anti-detachment effect.

[0034] Compared to conventional welding and screw connections, the connection device with the above structure is extremely easy to operate, improves installation efficiency, and helps save on operating costs.

[0035] Furthermore, such as Figure 6 As shown, an abutment part 321 is provided on the connector 32, which abuts against the inner support plate 211 from the inside and, together with the middle pressure block 34, clamps the inner support plate 211, which helps to improve the connection stability between the connector 32 and the second snap-fit ​​groove 21.

[0036] During assembly, the adapter groove 2 is inserted vertically into the first snap-fit ​​groove 11 of the base 1. The first snap-fit ​​is completed by the lateral engagement of the first snap-fit ​​plate 12 and the snap-fit ​​part 23 (if necessary, self-tapping screws can be screwed in from the side to improve connection stability), restricting the displacement of the adapter groove 2 relative to the base 1 in the vertical and horizontal directions. Subsequently, the connector 32 enters the second snap-fit ​​groove 21 in an inclined position and flips to a horizontal position. The elliptical connector 32 and the arc-shaped second snap-fit ​​groove 21 form the second snap-fit: the arc-shaped groove forms a semi-enclosed constraint on the connector 32, and together with the abutment of the two ends of the connector 32 by the limiting block 22, they jointly restrict the displacement of the connector 3 in the vertical and horizontal directions and the length direction. At the same time, the outer lug 33 snaps into the second snap-fit ​​plate 212, and the inner clamping block 35 and the middle pressure block 34 clamp the inner support plate 211 from the inner and outer sides, forming the third snap-fit, further restricting the degree of freedom of the connector 3 relative to the adapter groove 2. The three-level snap-fit ​​mechanism creates multiple limiting and locking relationships between the connector 3, the adapter groove 2, and the groove seat 1.

[0037] Example 2 like Figure 13 As shown, in this embodiment, the connector 3 adopts a split design, including a lower base plate 37 and an upper rotating body 38. The connector 32, the outer hanging ear 33, the middle pressure block 34 and the inner clamping block 35 are set at the bottom of the base plate 37. The third snap-fit ​​groove 31 and the snap-fit ​​strip 36 are set on the rotating body 38, so that it can rotate and deform.

[0038] Furthermore, such as Figure 14 As shown, the base plate 37 and the rotating body 38 are rotatably connected by a connecting shaft 371. The connecting shaft 371 is in the shape of a boss. After passing through the countersunk hole on the rotating body 38, the connecting shaft 371 is screwed into the threaded hole of the base plate 37 for fixation, thus connecting the two so that the rotating body 38 can rotate about the connecting shaft 371 as an axis.

[0039] Furthermore, an arc-shaped limiting groove 372 is provided on the base plate 37, and a limiting pin (not shown in the figure) is fixed at the bottom of the rotating body 38. The limiting pin is inserted into the limiting groove 372. When the rotating body 38 rotates relative to the base plate 37, the limiting pin slides along the limiting groove 372, thereby limiting the rotation angle.

[0040] In this embodiment, taking the maximum rotation angle between the rotating body 38 and the base plate 37 as 90 degrees as an example, that is, the two can be set parallel or perpendicular.

[0041] Everything else is the same as in Example 1, and will not be repeated here.

[0042] Based on the three-level snap-fit ​​structure of Embodiment 1, this embodiment further divides the connector 3 into two parts: a base plate 37 and a rotating body 38, which can rotate relative to each other. The base plate 37 is snap-fitted and fixed to the adapter groove 2 and the groove seat 1 through the connector 32, external lug 33, central pressure block 34, and internal clamping block 35 at its bottom. The rotating body 38 rotates relative to the base plate 37 in the horizontal plane with the connecting shaft 371 as the rotation center, realizing flexible adjustment of the orientation of the third snap-fit ​​groove 31. The cooperation between the limiting pin and the arc-shaped limiting groove 372 forms a mechanical limit on the rotation angle, controlling the maximum rotation angle to 90 degrees, avoiding excessive rotation that may cause structural interference or connection failure. At the same time, due to the symmetrical structural design of the rotating body, it is actually equivalent to the rotating body being able to rotate 180 degrees. This split structure allows the same connecting device to adapt to the installation requirements of columns in different directions: when the rotating body 38 rotates to be parallel to the base plate 37, it is suitable for scenarios where the front and rear columns are arranged in a straight line; when it rotates to the vertical direction, it is suitable for scenarios where the columns are arranged in a vertically intersecting direction; it can also stay at any intermediate angle to meet the requirements of oblique arrangement. Thus, without changing the installation position of the slot 1 and the adapter slot 2, the orientation of the third card slot 31 can be adjusted as needed, improving the versatility and adaptability of the connecting device in different photovoltaic bracket layouts.

[0043] Example 3 like Figure 7 As shown, a solar photovoltaic bracket includes a front column 4, a rear column 5, and the connecting device described in Embodiment 1. In this embodiment, the front column 4 and the rear column 5 are connected to the corresponding connecting parts 3 in the same way. Specifically, taking the front column 4 as an example, the bottom of the front column 4 is embedded in the third snap-fit ​​groove 31, so that the snap-fit ​​strip 36 is snapped into the weight-reducing hole on the side of the front column 4, fixing the front column 4 in the groove. The rear column 5 is fixed in the same way, which will not be described in detail here. Using this method, the front and rear columns can be installed conveniently and quickly, which is beneficial to improving the assembly speed of the solar photovoltaic bracket.

[0044] like Figure 8 As shown, it also includes a ballast plate 6, with both ends of the ballast plate 6 connected to corresponding connectors 3. Figure 9 As shown, the bottom of both ends of the ballast plate 6 is fixed with connecting blocks 61 similar to the front and rear column structures. The ballast plate 6 can be quickly installed by the snap-fit ​​of the connecting blocks 61 and the connecting parts 3.

[0045] like Figure 10 As shown, it also includes a side baffle 7 fixedly installed between the front column 4 and the rear column 5, and a rear baffle 8 fixedly installed between the rear columns 5. The two baffles can block the wind from the side and the rear.

[0046] like Figure 11As shown, it also includes photovoltaic panel assemblies 9 installed and fixed on the tops of the two front columns 4 and the two rear columns 5. The photovoltaic panel assemblies 9 adopt a conventional structural design, and their installation process and power generation principle will not be described in detail here.

[0047] This embodiment uses the connecting device from Embodiment 1 in a solar photovoltaic support system. The support system is based on two connecting devices, corresponding to the installation positions of the two front columns 4 and two rear columns 5, respectively. The snap-fit ​​strip 36 snaps into the weight-reducing holes on the side of the columns, using these holes as snap-fit ​​points. This eliminates the need for additional connection structures on the columns, allowing for seamless connection between each column and the connecting piece 3. The ballast plate 6 is snapped into the connecting piece 3 at both ends via connecting blocks 61. Side baffles 7 and rear baffles 8 form windbreaks on the sides and rear of the support system, reducing risk. The entire photovoltaic support system requires only a few welding or other fastening tools, thus facilitating a shorter construction cycle, improving work efficiency, and reducing labor costs.

[0048] Example 4 like Figure 15 As shown, the difference between this embodiment and embodiment 3 is that a solar photovoltaic bracket includes the connecting device described in embodiment 2. In this embodiment, two front columns 4 are installed on the same slot 1, and the rear column 5 is installed on the same slot 1. The slot 1 is installed and fixed horizontally. Since the connector 3 adopts a split design in which the base plate 37 and the rotating body 38 can rotate relative to each other, when the slot 1 is horizontally positioned, the base plate 37 of each connector 3 is horizontally fixed along with the slot 1 and the transition slot 2, while the rotating body 38 can independently rotate to the corresponding angle according to the actual installation position of each column, so that the orientation of the third snap-fit ​​slot 31 is consistent with the insertion direction of the bottom of the column.

[0049] Due to the adjustable angle of the split connector 3, even if the horizontal slot seat 1 has a certain level deviation or the column position has a slight offset during installation, it can still be compensated by the rotation of the rotating body 38, so that the engagement between the column and the connector 3 is accurate, thereby reducing the installation accuracy requirements.

[0050] Everything else is the same as in Example 3, and will not be repeated here.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A connection device for a solar photovoltaic mounting bracket, characterized in that, include: Slot (1), adapter slot (2) and connector (3); The top of the slot (1) is provided with a first snap-fit ​​slot (11), and the first snap-fit ​​plates (12) are provided on both sides of the first snap-fit ​​slot (11). The top of the adapter groove (2) is provided with two arc-shaped second snap-fit ​​grooves (21), the inner side of the second snap-fit ​​groove (21) is provided with an inner support plate (211), the outer side is provided with a second snap-fit ​​plate (212), and the shoulder of the adapter groove (2) is provided with a snap-fit ​​part (23). The connector (3) has a third snap-fit ​​groove (31) at the top, snap-fit ​​strips (36) on both sides of the third snap-fit ​​groove (31), and an elliptical cylindrical connector (32), an external hanging ear (33), a middle pressure block (34), and an inner clamping block (35) at the bottom.

2. The connection device for a solar photovoltaic support according to claim 1, characterized in that, The second card slot (21) is provided with multiple limit blocks (22).

3. The connection device for a solar photovoltaic support according to claim 1, characterized in that, The connecting body (32) is provided with an abutment part (321), which abuts against the inner support plate (211) from the inside and, together with the middle pressure block (34), clamps the inner support plate (211).

4. A connection device for a solar photovoltaic support according to claim 1, characterized in that, The bottom end of the external ear (33) abuts against the top end of the first snap-fit ​​plate (12).

5. A connection device for a solar photovoltaic support according to claim 1, characterized in that, The connector (3) includes a base plate (37) and a rotating body (38).

6. The connection device for a solar photovoltaic support according to claim 5, characterized in that, The base plate (37) and the rotating body (38) are rotatably connected by a connecting shaft (371).

7. The connection device for a solar photovoltaic support according to claim 6, characterized in that, The base plate (37) has an arc-shaped limiting groove (372), and the bottom of the rotating body (38) is fixed with a limiting pin. The limiting pin is inserted into the limiting groove (372) and can slide along the limiting groove (372).

8. A solar photovoltaic support bracket, comprising a front column (4), a rear column (5), and a connection device for a solar photovoltaic support bracket as described in any one of claims 1 to 7, characterized in that, The front column (4) and the rear column (5) are respectively engaged with the corresponding connectors (3).

9. The solar photovoltaic support according to claim 8, characterized in that, It also includes a ballast plate (6), the two ends of which are connected to corresponding connectors (3), and the bottom of both ends of the ballast plate (6) are fixed with connecting blocks (61), which are engaged with the connectors (3).

10. The solar photovoltaic support according to claim 8, characterized in that, It also includes side panels (7), rear panels (8) and photovoltaic panels (9).

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