Photovoltaic support purline connecting structure

Abstract

The utility model discloses a photovoltaic support purline connecting structure which comprises at least two purlines, an inclined beam, a connecting piece and a batter brace, the number of the purlines is at least two, the inclined beam is in bolted connection with all the purlines, the connecting piece is in bolted connection with the middle portions of all the purlines, and the batter brace is located between the two purlines on the uppermost portion. One end of the batter brace is connected to the joint of the purline and the oblique beam, and the other end of the batter brace is connected to the joint of the purline and the connecting piece. In the utility model, the connecting piece is used for connecting the middle parts of the plurality of purlines so as to connect the plurality of purlines into a whole, so that the strength and rigidity of the purlines are improved, and the deformation of the middle parts of the purlines is reduced, thereby improving the safety and stability of the structure; meanwhile, a plurality of straight pull rods or straight pull strips are replaced by one connecting piece, and the inclined pull strips are only arranged between the two purlins at the uppermost part, so that the use of steel materials such as the pull strips or the pull rods is reduced, the cost is saved, connecting points are reduced, and the installation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic support purlins, and in particular relates to a photovoltaic support purlin connection structure. Background Art

[0002] Purlins are an important structure of photovoltaic brackets, which play the role of connecting the photovoltaic bracket body and photovoltaic modules. Purlins are usually C-section steel profiles, which are formed by cold bending of steel strips and then drilled with holes, and connected to diagonal beams, photovoltaic modules and other supporting structures with bolts; in addition, since the span of purlins exceeds a certain distance, the appropriate position needs to be reinforced, and the torsion resistance of C-section purlins themselves is not strong, photovoltaic bracket manufacturers usually arrange tie rods or tie rods in the middle of two adjacent rows of purlins to connect multiple rows of purlins, thereby strengthening the structural strength of the purlins.

[0003] However, when the purlin is twisted, its own center is the twisting center, and the position where the purlins are connected by tie rods or pull rods is also at the center of the purlin. The tie rods or pull rods cannot play a significant inhibitory role during twisting, that is, the middle part of the top row of purlins cannot get obvious support, and because the top row of purlins is at the highest height from the ground, the middle part of the top row of purlins is deformed more greatly; in addition, the circular cross-section of the tie rods or pull rods that is too thin does not have much effect on the vertical bending deformation of the purlins.

[0004] At the same time, two adjacent rows of purlins are connected by multiple tie rods or multiple tie rods, and the number of tie rods or tie rods required is large, and the installation process is relatively cumbersome. Utility Model Content

[0005] In order to overcome the defects of the prior art, the utility model provides a photovoltaic support purlin connection structure, which can improve the structural stability.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] A photovoltaic support purlin connection structure, comprising:

[0008] Purlins: the number of purlins shall be at least two;

[0009] The diagonal beam is connected to all purlins by bolts;

[0010] Connectors, which are bolted to the middle of all purlins;

[0011] The diagonal brace is located between the two top purlins. One end of the diagonal brace is connected to the connection between the purlin and the diagonal beam, and the other end of the diagonal brace is connected to the connection between the purlin and the connecting piece.

[0012] The beneficial effects of adopting the above technical solution are: connecting parts are used to connect the middle parts of multiple purlins to connect the multiple purlins into a whole, so as to improve the strength and rigidity of the purlins and reduce the deformation of the middle part of the purlins, thereby improving the safety and stability of the structure; at the same time, a plurality of straight tie rods or straight tie bars are replaced by a connecting part, and only inclined tie bars are set between the top two purlins to reduce the use of steel materials such as tie bars or tie rods, thereby saving costs and reducing connection points, thereby facilitating installation.

[0013] In one embodiment, the diagonal beam and the connecting member are both located below the purlin.

[0014] The beneficial effect of adopting the above technical solution is that the inclined beam and the connecting parts are both located below the purlin, so as to facilitate the installation of photovoltaic modules above the purlin.

[0015] In one embodiment, the photovoltaic support purlin connection structure includes a first purlin support and a second purlin support, the first purlin support is bolted between one side of the purlin and the oblique beam, and the second purlin support is bolted between the other side of the purlin and the oblique beam.

[0016] The beneficial effect of adopting the above technical solution is that the two sides of the purlin are respectively connected to the inclined beam by the first purlin support and the second purlin support bolts to restrict the two sides of the purlin, thereby reducing the risk of bending of the purlin support root due to the force on one side of the purlin support.

[0017] In one embodiment, the cross section of the purlin is "n"-shaped, and the opening of the purlin faces the diagonal beam.

[0018] The beneficial effect of adopting the above technical solution is that the purlin with an "n"-shaped cross-section has a stronger bending resistance than the purlin with a traditional "C"-shaped cross-section.

[0019] In one embodiment, the first purlin support is a plate-bent purlin support, one end of the first purlin support is fitted and bolted to the purlin, and the other end of the first purlin support is fitted and bolted to the diagonal beam; the second purlin support is an angle steel purlin support, one end of the second purlin support is fitted and bolted to the purlin, and the other end of the second purlin support is fitted and bolted to the diagonal beam.

[0020] The beneficial effects of adopting the above technical solution are: the contact surfaces between the first purlin support and the second purlin support and the purlin and the diagonal beam are relatively large, so that the purlin can be firmly connected to the diagonal beam through the first purlin support and the second purlin support, thereby improving the bearing capacity by increasing the contact area, and effectively preventing the photovoltaic components from being overturned when the wind blows in the opposite direction.

[0021] In one embodiment, a connecting angle steel is bolted between one side of the purlin and the connecting member.

[0022] The beneficial effect of adopting the above technical solution is that the purlin is connected to the connecting piece through the connecting angle steel.

[0023] In one embodiment, one end of the connecting angle steel is attached and bolted to the connecting piece, and the other end of the connecting angle steel is attached and bolted to the purlin.

[0024] The beneficial effect of adopting the above technical solution is that the contact surface between the angle steel, the connecting piece and the purlin is larger, so that the purlin and the connecting piece can be firmly connected.

[0025] In one embodiment, the connecting member is a U-section profile.

[0026] The beneficial effect of adopting the above technical solution is that the connecting piece adopts a U-shaped cross-section profile, which can save steel.

[0027] In one embodiment, there is a gap between the purlin and the diagonal beam.

[0028] The beneficial effect of adopting the above technical solution is that there is a gap between the purlin and the inclined beam, so that the structure has the ability to adjust the angle, which is conducive to adapting to the slope.

[0029] In one embodiment, two ends of the connecting member are respectively clamped on two adjacent purlins.

[0030] The beneficial effects of the utility model are:

[0031] Connectors are used to connect the middle parts of multiple purlins, connecting the multiple purlins into a whole to improve the strength and rigidity of the purlins and reduce the deformation of the middle part of the purlins, thereby improving the safety and stability of the structure; at the same time, a plurality of straight tie rods or straight tie bars are replaced by a connector, and only inclined tie bars are set between the top two purlins to reduce the use of steel materials such as tie bars or tie rods, thereby saving costs and reducing connection points, thereby facilitating installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0033] in:

[0034] Figure 1 The schematic diagram of the structure of the existing photovoltaic bracket is shown;

[0035] Figure 2 The installation diagram of the utility model is shown;

[0036] Figure 3 The schematic diagram of the structure of the utility model is shown;

[0037] Figure 4 Shows Figure 3 A partial enlarged view of the middle A;

[0038] Figure 5 Shows Figure 3 A partial enlarged view of point B in the middle;

[0039] Figure 6 An axonometric view of the utility model is shown;

[0040] Figure 7 Shows Figure 6 A partial enlarged view of point C in the middle;

[0041] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0042] Reference numerals:

[0043] 1- purlin, 2- inclined beam, 3- straight brace, 4- inclined brace, 5- photovoltaic module, 6- connecting piece, 7- first purlin support, 8- connecting angle steel, 9- second purlin support. DETAILED DESCRIPTION

[0044] The utility model will be further described below in conjunction with the accompanying drawings.

[0045] like Figure 1 As shown, in the existing photovoltaic bracket, the photovoltaic components 5 are usually arranged in two rows, with thirteen to twenty-eight photovoltaic panels in each row, and the photovoltaic panels are arranged vertically. Each row of photovoltaic panels requires two rows of purlins 1 for connection, so the photovoltaic bracket usually has four rows of purlins 1; and the middle of each span of purlins 1 is a weak point and has the largest deformation, so the diagonal brace 4 is often used to connect the middle of the lower row of purlins 1 in each group of purlins 1 to the vicinity of the connection point of the upper row of purlins 1 and the inclined beam 2, and then three sections of straight braces 3 are used to connect the middle of each row of purlins 1. In addition to this solution, the diagonal brace 4 is also omitted in some purlin 1 arrangement solutions, but due to the limitation of span parameters, this solution is not very reliable.

[0046] And the existing purlin connection structure has the following problems:

[0047] The strengthening effect of the purlin 1 is not obvious. Specifically, when the purlin 1 is twisted, its own center position is the twisting center, and the position where the purlins 1 are connected by the tie rods or tie rods is also at the center position of the purlin 1. The tie rods or tie rods cannot play an obvious inhibitory role during twisting, that is, the middle part of the top row of purlins 1 cannot be obviously supported, and because the top row of purlins 1 is at the highest height from the ground, the middle part of the top row of purlins 1 is deformed more; in addition, the circular cross-section of the tie rods or tie rods that are too thin does not have much effect on the vertical bending deformation of the purlin 1;

[0048] The large number of tie rods or tie bars makes installation complicated and brings more bracket production costs;

[0049] When the inclination angle of the photovoltaic panel is too large, the purlin support has a strong bending resistance requirement. The root of the purlin support of the current mainstream product is easily bent, and the single-sided fixing form makes the purlin 1 always rest on the inclined beam 2, and the ability to cope with slope changes is poor.

[0050] Therefore, the utility model provides a photovoltaic support purlin connection structure, such as Figure 2-7 As shown, including:

[0051] Purlin 1, the number of purlins 1 is four;

[0052] Inclined beam 2, which is connected to all purlins 1 by bolts;

[0053] Connecting member 6, connecting member 6 is connected with middle bolts of all purlins 1;

[0054] The diagonal brace 4 is located between the two uppermost purlins 1 , one end of the diagonal brace 4 is connected to the connection between the purlin 1 and the diagonal beam 2 , and the other end of the diagonal brace 4 is connected to the connection between the purlin 1 and the connecting piece 6 .

[0055] It can be understood that the connecting member 6 is used to connect the middle parts of the four purlins 1 to connect the four purlins 1 into a whole, so as to improve the strength and rigidity of the purlin 1 and reduce the deformation of the middle part of the purlin 1, thereby improving the safety and stability of the structure; at the same time, a plurality of straight tie rods or straight tie bars 3 are replaced by a connecting member 6, and only the inclined tie bars 4 are arranged between the top two purlins 1 to reduce the use of steel materials such as tie bars or tie rods, thereby saving costs, and reducing the connection points, thereby facilitating installation.

[0056] It should be noted that both ends of all purlins 1 of each span are respectively connected to two diagonal beams 2 by bolts; in addition, bolt connection is adopted for the convenience of on-site installation of components after they are completed in the factory.

[0057] In one embodiment, the oblique beam 2 and the connecting member 6 are both located below the purlin 1 to facilitate the installation of the photovoltaic module 5 above the purlin 1 .

[0058] In one embodiment, Figure 4 and Figure 7 As shown, the photovoltaic support purlin connection structure includes a first purlin support 7 and a second purlin support 9. The first purlin support 7 is bolted to one side of the purlin 1 and the inclined beam 2, and the second purlin support 9 is bolted to the other side of the purlin 1 and the inclined beam 2.

[0059] It can be understood that both sides of the purlin 1 are bolted to the inclined beam 2 through the first purlin bracket 7 and the second purlin bracket 9 respectively to restrict both sides of the purlin 1, thereby reducing the risk of bending of the purlin bracket root due to stress on one side of the purlin bracket.

[0060] In one embodiment, the cross section of the purlin 1 is “n”-shaped, and the opening of the purlin 1 faces the diagonal beam 2 .

[0061] It can be understood that the purlin 1 with an “n”-shaped cross-section has a stronger bending resistance than the purlin 1 with a traditional “C”-shaped cross-section.

[0062] In one embodiment, the first purlin support 7 is a plate-bent purlin support, one end of the first purlin support 7 is fitted and bolted to the purlin 1, and the other end of the first purlin support 7 is fitted and bolted to the diagonal beam 2; the second purlin support 9 is an angle steel purlin support, one end of the second purlin support 9 is fitted and bolted to the purlin 1, and the other end of the second purlin support 9 is fitted and bolted to the diagonal beam 2.

[0063] It can be understood that the contact areas between the first purlin support 7 and the second purlin support 9 and the purlin 1 and the diagonal beam 2 are relatively large, so that the purlin 1 can be firmly connected to the diagonal beam 2 through the first purlin support 7 and the second purlin support 9, thereby improving the bearing capacity by increasing the contact area and effectively preventing the photovoltaic module 5 from being overturned when the wind blows in the opposite direction.

[0064] In one embodiment, Figure 5 As shown, a connecting angle steel 8 is bolted between one side of the purlin 1 and the connecting member 6 .

[0065] In one embodiment, one end of the connecting angle steel 8 is attached to and bolted to the connecting piece 6 , and the other end of the connecting angle steel 8 is attached to and bolted to the purlin 1 .

[0066] It can be understood that the contact surface between the connecting angle steel 8 and the connecting member 6 and the purlin 1 is relatively large, so that the purlin 1 and the connecting member 6 can be firmly connected.

[0067] In one embodiment, the connecting member 6 is a U-shaped cross-section profile.

[0068] It can be understood that the connection member 6 adopts a U-shaped cross-section profile, which can save steel.

[0069] It should be noted that the cross-sectional shape of the connecting member 6 may also be L-shaped or C-shaped.

[0070] In one embodiment, there is a gap between the purlin 1 and the diagonal beam 2 so that the structure has the ability to adjust the angle to facilitate adapting to the slope.

[0071] In one embodiment, two ends of the connecting member 6 are respectively clamped on two adjacent purlins 1 .

[0072] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0073] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in a manner different from that described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other described embodiments.

Claims

1. A photovoltaic support purlin connection structure, characterized in that: include: Purlins (1), the number of the purlins (1) being at least two; An inclined beam (2), wherein the inclined beam (2) is bolted to all the purlins (1); A connecting member (6), the connecting member (6) being connected to the middle portions of all the purlins (1) by bolts; A diagonal brace (4), wherein the diagonal brace (4) is located between the two uppermost purlins (1), one end of the diagonal brace (4) is connected to the connection between the purlin (1) and the diagonal beam (2), and the other end of the diagonal brace (4) is connected to the connection between the purlin (1) and the connecting member (6).

2. A photovoltaic support purlin connection structure according to claim 1, characterized in that: The oblique beam (2) and the connecting member (6) are both located below the purlin (1).

3. A photovoltaic support purlin connection structure according to claim 1, characterized in that: It comprises a first purlin support (7) and a second purlin support (9), wherein the first purlin support (7) is bolted between one side of the purlin (1) and the inclined beam (2), and the second purlin support (9) is bolted between the other side of the purlin (1) and the inclined beam (2).

4. A photovoltaic support purlin connection structure according to claim 3, characterized in that: The cross section of the purlin (1) is "n"-shaped, and the opening of the purlin (1) faces the oblique beam (2).

5. A photovoltaic support purlin connection structure according to claim 4, characterized in that: The first purlin support (7) is a plate-bent purlin support, one end of the first purlin support (7) is fitted and bolted to the purlin (1), and the other end of the first purlin support (7) is fitted and bolted to the inclined beam (2); the second purlin support (9) is an angle steel purlin support, one end of the second purlin support (9) is fitted and bolted to the purlin (1), and the other end of the second purlin support (9) is fitted and bolted to the inclined beam (2).

6. A photovoltaic support purlin connection structure according to claim 1, characterized in that: A connecting angle steel (8) is bolted between one side of the purlin (1) and the connecting member (6).

7. A photovoltaic support purlin connection structure according to claim 6, characterized in that: One end of the connecting angle steel (8) is attached to and bolted to the connecting piece (6), and the other end of the connecting angle steel (8) is attached to and bolted to the purlin (1).

8. A photovoltaic support purlin connection structure according to claim 1, characterized in that: The connecting piece (6) is a U-shaped cross-section profile.

9. A photovoltaic support purlin connection structure according to claim 1, characterized in that: There is a gap between the purlin (1) and the diagonal beam (2).

10. A photovoltaic support purlin connection structure according to claim 1, characterized in that: The two ends of the connecting member (6) are respectively clamped on two adjacent purlins (1).

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