Photovoltaic support and connecting structure thereof

Abstract

The utility model discloses a photovoltaic support and a connecting structure thereof, and relates to the technical field of photovoltaic supports. The photovoltaic support connecting structure comprises a first limiting strip and a second limiting strip. The first limiting strip and the second limiting strip have elasticity or plasticity, the first limiting strip is provided with a first plane, and the second limiting strip is provided with a second plane opposite to the first plane; a fastening bolt; the fastening bolt is provided with a third plane and a fourth plane; during use, the third plane is opposite to the first plane, the fourth plane is opposite to the second plane, and the third plane and the fourth plane are used for limiting rotation of the fastening bolt. The first plane on the first limiting strip and the second plane on the second limiting strip are matched with the third plane and the fourth plane on the fastening bolt, rotation of the fastening bolt can be limited, and loosening of the fastening bolt can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic brackets, and specifically to a photovoltaic bracket and a connection structure thereof. Background Art

[0002] Photovoltaic brackets are special brackets used to install and support photovoltaic modules. They are generally customized according to the size and shape of the photovoltaic modules to meet the installation requirements in different environments. Generally, photovoltaic brackets are fixed to the ground, roof or other structures to keep the photovoltaic modules at a certain tilt angle to maximize the reception of solar radiation. Generally, a large number of bolts are used to connect the various components in photovoltaic brackets. For example, in the prior art, photovoltaic brackets include beams and corrugated metal sheets. When in use, the beams and the corrugated metal sheets are connected by bolts, and then the photovoltaic modules are set on the corrugated metal sheets. The corrugated metal sheets can support the photovoltaic modules so that the photovoltaic modules maintain a certain tilt angle. In order to increase the structural strength of the corrugated metal sheet, a support is also provided at the metal corrugation. When in use, the support is connected to the corrugated metal sheet by bolts.

[0003] It should be understood that, since the photovoltaic modules have an inclination angle and are located outdoors, during long-term use, wind and rain will cause the photovoltaic bracket to vibrate, which will loosen the bolts and reduce the structural strength of the photovoltaic bracket. If the structural strength of the photovoltaic bracket decreases, the photovoltaic modules installed on the photovoltaic bracket will be at risk of falling. If the photovoltaic modules fall, it may cause damage to the photovoltaic modules at the least, or even cause a safety accident at the worst. Utility Model Content

[0004] The purpose of the present application is to provide a photovoltaic bracket and a connection structure thereof to solve the technical problem that the fastening bolts of the photovoltaic bracket located outdoors have the risk of loosening.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] In a first aspect, the present application proposes a technical solution for a photovoltaic support connection structure, wherein the photovoltaic support comprises a first part and a second part, wherein the first part and the second part are connected by fastening bolts. The photovoltaic support connection structure comprises:

[0007] A first limiting strip and a second limiting strip; the first limiting strip and the second limiting strip are elastic or plastic, and the first limiting strip has a first plane, and the second limiting strip has a second plane opposite to the first plane; a threaded hole is formed between the first limiting strip and the second limiting strip;

[0008] A fastening bolt; the fastening bolt has a third plane and a fourth plane; when in use, the third plane is opposite to the first plane, and the fourth plane is opposite to the second plane, for limiting the rotation of the fastening bolt;

[0009] Screw; the screw is adapted to the threaded hole; when in use, the end of the screw can conflict with the fastening bolt;

[0010] The photovoltaic support connection structure also includes a nut, which is provided with a plastic ring; the fastening bolt is provided with a second limiting groove, and the extension direction of the second limiting groove is parallel to the axial direction of the fastening bolt.

[0011] As a specific solution in the technical solution of this application, the fastening bolt includes:

[0012] Threaded rod;

[0013] A nut is arranged at one end of the threaded rod, and the third plane and the fourth plane are arranged on the nut.

[0014] As a specific solution in the technical solution of the present application, the nut is provided with a first limiting groove; the axial center lines of the nut, the threaded rod and the first limiting groove all coincide.

[0015] As a specific solution in the technical solution of the present application, the nut is in a hexagonal block structure or a square block structure.

[0016] As a specific solution in the technical solution of the present application, the first limiting strip and the second limiting strip are arranged on the first part; the first part is any one of a metal corrugated plate, a support member and a beam.

[0017] As a specific solution in the technical solution of the present application, the fastening bolt is threadedly connected to the second part.

[0018] As a specific solution in the technical solution of the present application, the photovoltaic bracket connection structure also includes a nut, and the second part is also provided with a contoured groove, and the contoured groove is adapted to the nut.

[0019] As a specific solution in the technical solution of the present application, the first plane and the second plane are parallel.

[0020] As a specific solution in the technical solution of the present application, the distance between the first plane and the second plane is greater than or equal to the distance between the third plane and the fourth plane, and is less than the maximum outer diameter of the fastening bolt around the third plane and the fourth plane.

[0021] In a second aspect, the present application proposes a technical solution for a photovoltaic bracket, which includes a photovoltaic bracket connection structure as described in any one of the first aspects.

[0022] As a specific solution in the technical solution of this application, the photovoltaic bracket also includes:

[0023] beam;

[0024] A metal corrugated plate; the metal corrugated plate is connected to the crossbeam, and the metal corrugated plate has metal corrugations;

[0025] At least one supporting member; each supporting member is arranged on the metal corrugation.

[0026] As a specific solution in the technical solution of the present application, the support member is in a sheet-like structure.

[0027] As a specific solution in the technical solution of the present application, the support member includes a support plate and a connecting plate; the support plate and the connecting plate are hinged.

[0028] Compared with the prior art, the beneficial effects of this application are:

[0029] The present application can limit the rotation of the fastening bolts by using the first plane on the first limit strip and the second plane on the second limit strip in conjunction with the third plane and the fourth plane on the fastening bolts, that is, can prevent the fastening bolts from loosening. During long-term use, if the fastening bolts are difficult to loosen, the structural strength of the photovoltaic bracket will decrease due to the loosening of the fastening bolts, and the phenomenon of photovoltaic components falling and being damaged or causing safety accidents will be unlikely to occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the structure of a photovoltaic bracket proposed in an embodiment of the present application;

[0031] Figure 2 A three-dimensional schematic diagram of a metal corrugated plate proposed in an embodiment of the present application;

[0032] Figure 3 for Figure 2 The front view of the corrugated metal sheet;

[0033] Figure 4 A three-dimensional schematic diagram of a support member proposed in an embodiment of the present application;

[0034] Figure 5 A three-dimensional schematic diagram of a fastening bolt proposed in an embodiment of the present application;

[0035] Figure 6 A three-dimensional schematic diagram of another fastening bolt proposed in an embodiment of the present application;

[0036] Figure 7 A three-dimensional schematic diagram of another fastening bolt proposed in an embodiment of the present application;

[0037] Figure 8 for Figure 1 A partial enlarged schematic diagram of part A;

[0038] Fig. 9 for Figure 1 Another partial enlarged schematic diagram of part A;

[0039] Fig.10 A schematic diagram of a connection between a fastening bolt and a nut proposed in an embodiment of the present application;

[0040] Fig.11 A schematic diagram of the positions of a first plane and a second plane proposed in an embodiment of the present application;

[0041] Fig.12 A schematic diagram of the positions of another first plane and a second plane proposed in an embodiment of the present application;

[0042] Fig.13 This is a three-dimensional schematic diagram of another support member proposed in an embodiment of the present application.

[0043] In the figure: 1. crossbeam; 11. contoured groove; 2. metal corrugated board; 3. photovoltaic module; 4. metal corrugation; 41. first inclined portion; 42. corrugated bottom; 43. second inclined portion; 5. support member; 51. support plate; 52. connecting plate; 6. fastening bolt; 61. nut; 62. threaded rod; 621. second limiting groove; 63. third plane; 64. fourth plane; 65. first limiting groove; 71. first limiting strip; 72. second limiting strip; 73. threaded hole; 8. nut; 81. plastic ring; 9. screw. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] It should be noted that, in the description of the present application, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", 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 application and simplifying the description. They 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 application.

[0046] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0047] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0048] The terms "first", "second", etc. in the description and claims of the embodiments of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, such as the first part and the second part proposed below, which belong to different parts. It should be understood that the parts used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that shown or described herein.

[0049] Before understanding the embodiments of the present application, it should be noted that in order to simplify the drawings in the present application so that technicians in this field can clearly understand the specific structures of various parts proposed in the embodiments of the present application, the threads of all parts (for example: the fastening bolts 6 and threaded rods 62 mentioned below) are omitted in the drawings of the present application.

[0050] In order to solve the technical problem that the fastening bolts of the photovoltaic bracket located outdoors have the risk of loosening as proposed in the background technology, the present application proposes an embodiment of a photovoltaic bracket connection structure, which includes a first part and a second part, and the first part and the second part are connected by a fastening bolt 6. In this embodiment, the first part and the second part can be any parts in the photovoltaic bracket that need to be connected by fastening bolts, for example: if the first part is a metal corrugated plate 2, the second part can be a support 5. Of course, if the first part is a support 5, the second part can also be a metal corrugated plate 2. Or, if the first part is a metal corrugated plate 2, the second part can be a beam 1. Of course, if the first part is a beam 1, the second part can also be a metal corrugated plate 2, and no further details will be listed later.

[0051] In this embodiment, the photovoltaic support connection structure includes a first limiting strip 71, a second limiting strip 72 and a fastening bolt 6. Figure 3 and Figure 4 As shown, the first limiting strip 71 has a first plane, and the second limiting strip 72 has a second plane opposite to the first plane. And the first limiting strip 71 and the second limiting strip 72 are elastic or plastic. Figures 5 to 7 As shown, the fastening bolt 6 has a third plane 63 and a fourth plane 64. When in use, Figure 8 and Fig. 9 As shown, the third plane 63 is opposite to the first plane, and the fourth plane 64 is opposite to the second plane, which is used to limit the rotation of the fastening bolt 6. It should be noted that under the limiting effect between the first plane, the second plane, the third plane 63 and the fourth plane 64, the fastening bolt 6 cannot be rotated during use. If the fastening bolt 6 cannot be rotated, then during long-term use, the fastening bolt 6 must not be loosened. In other words, the embodiment of the present application can limit the rotation of the fastening bolt 6 by the first plane on the first limiting strip 71 and the second plane on the second limiting strip 72, in conjunction with the third plane and the fourth plane on the fastening bolt 6, that is, it can prevent the fastening bolt 6 from loosening. During long-term use, if the fastening bolt 6 is difficult to loosen, the structural strength of the photovoltaic bracket caused by the loosening of the fastening bolt will decrease, and the phenomenon of photovoltaic components falling and being damaged or causing safety accidents will be difficult to occur.

[0052] In order to further limit the position of the fastening bolt 6 to prevent the fastening bolt 6 from rotating. In one embodiment of the present application, Figure 4 and Fig. 9 As shown, a threaded hole 73 is formed between the first limiting strip 71 and the second limiting strip 72. Figure 4 As shown, the photovoltaic support connection structure also includes a screw 9, and the screw 9 is adapted to the threaded hole 73. When in use, the screw 9 is screwed into the threaded hole 73 so that the end of the screw 9 conflicts with the fastening bolt 6, which can further limit the position of the fastening bolt 6.

[0053] It should be noted that, in the present embodiment, the first limit strip 71 and the second limit strip 72 are elastic or plastic, that is, the first limit strip 71 and the second limit strip 72 can undergo elastic deformation or plastic deformation, that is, in the subsequent use process, the part of the fastening bolt 6 having the third plane 63 and the fourth plane 64 (for example, the nut 61 below) can be placed between the first limit strip 71 and the second limit strip 72 without damaging the first limit strip 71 and the second limit strip 72, so that the first limit strip 71 and the second limit strip 72 can limit the fastening bolt 6.

[0054] In the embodiment of the present application, there is no restriction on the shape and structure of the first limiting strip 71 and the second limiting strip 72. For example, the first limiting strip 71 and the second limiting strip 72 can be rectangular strips or can be shaped like Figure 4 It should be noted that, compared with the rectangular strip, Figure 4 The bottom of the long strip-shaped first limiting strip 71 and the second limiting strip 72 is arc-shaped, so it is difficult for stress concentration to form at the bottom of the first limiting strip 71 and the second limiting strip 72, that is, when the portion of the fastening bolt 6 having the third plane 63 and the fourth plane 64 is screwed into the first limiting strip 71 and the second limiting strip 72, the first limiting strip 71 and the second limiting strip 72 will not crack due to stress concentration and will not be connected to the first part (for example, Figure 4 The support member 5 shown or Figure 8 The corrugated metal sheets 2) shown are separated.

[0055] In an embodiment of the present application, the first plane, the second plane, the third plane 63 and the fourth plane 64 can be matched in any reasonable manner to limit the rotation of the fastening bolt 6. For example, in an embodiment of the present application, the first plane, the second plane, the third plane 63 and the fourth plane 64 can be matched as follows: Fig.12 In order to stably limit the position of the fastening bolt 6, as shown in Fig.11 As shown, the first plane and the second plane may be parallel, that is, the third plane 63 and the fourth plane 64 are parallel.

[0056] It should be noted that in the application scenario where the first plane and the second plane are parallel, in order to ensure that the fastening bolt 6 is easily installed between the first limiting strip 71 and the second limiting strip 72, the distance between the first plane and the second plane (i.e. Fig.11 The distance S1 shown in FIG. 1 may be greater than or equal to the distance between the third plane 63 and the fourth plane 64 (ie, Fig.11 The distance S2 shown). It is easy to understand that if the distance between the first plane and the second plane is greater than or equal to the distance between the third plane 63 and the fourth plane 64, then after installation, the third plane 63 on the fastening bolt 6 is in contact with or has a gap with the first plane on the first limiting strip 71, and the fourth plane 64 on the fastening bolt 6 is also in contact with or has a gap with the second plane on the second limiting strip 72. Compared with the application scenario in which the fastening bolt 6 conflicts with the first limiting strip 71 or the second limiting strip 72 after installation, the application scenario in which the fastening bolt 6 contacts or has a gap with the first limiting strip 71 or the second limiting strip 72 after installation is more convenient for installing the fastening bolt 6.

[0057] It should be noted that in the application scenario where the first plane and the second plane are parallel, in order to ensure that the combination of the first plane, the second plane, the third plane 63 and the fourth plane 64 can stably limit the fastening bolt 6. Fig.11 The distance S1 shown in FIG. 1 must be smaller than the maximum outer diameter of the fastening bolt 6 around the third plane 63 and the fourth plane 64 (i.e., Fig.11 It is easy to understand that if the distance between the first plane and the second plane is smaller than the maximum outer diameter of the fastening bolt 6 around the third plane 63 and the fourth plane 64, the fastening bolt 6 is difficult to rotate under the restriction of the first plane and the second plane.

[0058] In the embodiment of the present application, there is no restriction on the shape and structure of the fastening bolt 6. For example, the fastening bolt 6 may be a threaded rod having only threads. In order to facilitate the rotation of the fastening bolt 6, in one embodiment of the present application, the fastening bolt 6 may include a threaded rod 62 and a nut 61. Figures 5 to 7 As shown, the nut 61 is arranged at one end of the threaded rod 62, and the third plane 63 and the fourth plane 64 are arranged on the nut 61. Through the arrangement of the nut 61, the user can rotate the fastening bolt 6 through the nut 61 with the aid of a tool.

[0059] In the embodiment of the present application, there is no restriction on the shape and structure of the nut 61. It only needs to have a third plane 63 and a fourth plane 64. For example, the nut 61 can be as follows: Figure 5 As shown, it is a hexagonal block structure; or, as Figure 6 As shown, it has a square block structure.

[0060] In order to further facilitate the rotation of the fastening bolt 6, in the embodiment of the present application, the nut 61 may be provided with a first limiting groove 65. The axis center lines of the nut 61, the threaded rod 62 and the first limiting groove 65 are all coincident. Through the provision of the first limiting groove 65, the user can rotate the fastening bolt 6 through the first limiting groove 65 with the aid of a tool.

[0061] In the embodiment of the present application, there is no limitation on the shape and structure of the first limiting groove 65, as long as it can be rotated with a tool. Figure 5 As shown in FIG. 1 , the first limit groove 65 is in the shape of a regular hexagonal groove. When in use, the bolt 6 can be rotated and tightened by using an inner hexagon wrench in conjunction with the first limit groove 65. Alternatively, the first limit groove 65 can also be as shown in FIG. Figure 7 As shown, the groove is in the shape of a cross, and when in use, the fastening bolt 6 can be rotated with the help of a cross screwdriver in conjunction with the first limiting groove 65 .

[0062] It should be clear that in the embodiment of the present application, the first limit strip 71 and the second limit strip 72 can be set at any suitable position on the photovoltaic bracket. In order to facilitate the fixing of the first limit strip 71 and the second limit strip 72, the first limit strip 71 and the second limit strip 72 can be set on the first part, and the first part can be the metal corrugated plate 2, the support member 5 and the crossbeam 1 in the photovoltaic bracket. In this embodiment, the fastening bolt 6 is threadedly connected to the second part.

[0063] In a specific embodiment of the present application, Figure 8 As shown, the first limiting strip 71 and the second limiting strip 72 can be integrally provided on the metal corrugated plate 2 (i.e., the first part), and an internal thread groove (not shown in the figure) can be provided inside the cross beam 1 (i.e., the second part). When in use, the cross beam 1 and the metal corrugated plate 2 are connected together by the fastening bolt 6 and the internal thread groove. Due to the limiting effect of the first limiting strip 71 and the second limiting strip 72, the fastening bolt 6 is difficult to rotate and loosen.

[0064] It should be noted that during long-term use, the photovoltaic bracket or photovoltaic module 3 needs to be disassembled for repair or maintenance. In the application scenario where the internal thread groove is provided on the second part, if the internal thread groove on the second part is damaged due to frequent installation and disassembly, the entire second part needs to be replaced, which is costly. In order to reduce the use cost, in the embodiment of the present application, the photovoltaic bracket connection structure also includes a nut 8. Fig. 9 As shown, when in use, the crossbeam 1 and the metal corrugated plate 2 can be connected by nuts 8 and fastening bolts 6. In the application scenario where the photovoltaic bracket or photovoltaic assembly 3 is frequently disassembled, even if the nuts 8 or fastening bolts 6 are damaged, the replacement cost is low.

[0065] It is easy to understand that in the application scenario where the nut 8 is used, if only the fastening bolt 6 is limited but the nut 8 is not limited, the fastening bolt 6 may still be loose. Fig. 9 As shown, the second part is also provided with a profiled groove 11 , which is matched with the nut 8 .

[0066] It should be noted that, in the embodiment of the present application, the matching of the profiling groove 11 and the nut 8 means that the nut 8 can be placed in the profiling groove 11, and the nut 8 cannot rotate after being placed in the profiling groove 11. For example, if the nut 8 is in the shape of a regular hexagonal block, the profiling groove 11 can be in the shape of a regular hexagonal groove; if the nut 8 is in the shape of a square block, the profiling groove 11 can be in the shape of a square groove, etc., which will not be listed one by one here.

[0067] It should be noted that if the profiling groove 11 is provided in the second part, the structural strength of the second part may be affected. In order to avoid affecting the structural strength of the second part, in one embodiment of the present application, Fig.10 As shown, a plastic ring 81 can be provided on the nut 8, the plastic ring 81 can be plastically deformed, and the plastic ring 81 can be a metal ring or a plastic ring, etc. The fastening bolt 6 is provided with a second limiting groove 621, and the extension direction of the second limiting groove 621 is parallel to the axial direction of the fastening bolt 6.

[0068] When in use, if the fastening bolt 6 and the nut 8 are connected in place, the plastic ring 81 is deformed by external force and pressed into the second limiting groove 621. It is easy to understand that if the plastic ring 81 is pressed into the second limiting groove 621, the nut 8 is difficult to rotate under the restriction of the plastic ring 81 and the second limiting groove 621. If the nut 8 cannot rotate, the fastening bolt 6 is difficult to loosen.

[0069] It should be clear that the embodiment of the photovoltaic support connection structure proposed in the present application can limit the rotation of the fastening bolts through the first plane on the first limit strip and the second plane on the second limit strip, in conjunction with the third plane and the fourth plane on the fastening bolts, that is, it can prevent the fastening bolts from loosening. During long-term use, if the fastening bolts are difficult to loosen, the structural strength of the photovoltaic support will decrease due to the loosening of the fastening bolts, and it will be difficult for the photovoltaic components to fall and be damaged or cause safety accidents.

[0070] After introducing the photovoltaic bracket connection structure proposed in the embodiments of the present application, a photovoltaic bracket proposed in the present application is introduced below. Specifically, the photovoltaic bracket includes the photovoltaic bracket connection structure proposed in any one of the above embodiments.

[0071] In a specific embodiment of the present application, Figure 1 As shown, the photovoltaic support further includes a crossbeam 1 and a metal corrugated plate 2. The metal corrugated plate 2 is connected to the crossbeam 1, and the metal corrugated plate 2 has metal corrugations 4.

[0072] In order to increase the strength of the metal corrugated sheet 4 and improve the overall strength of the metal corrugated sheet 2, in one embodiment of the present application, the photovoltaic support further includes at least one support member 5, such as Figure 2 As shown, each support member 5 is arranged on the metal corrugation 4.

[0073] In the embodiment of the present application, the support member 5 mainly supports the metal corrugated board 4 to improve the overall strength of the metal corrugated board 2. In the present embodiment, there is no restriction on the shape and structure of the support member 5. For example, the support member 5 can be a rod-shaped structure or a Figure 4 The structure shown is sheet-like.

[0074] It should be clear that in this embodiment, if Figure 1 and Figure 3 As shown, the metal corrugated sheet 4 includes a first inclined portion 41, a corrugated bottom 42, and a second inclined portion 43 which are connected in sequence. When the support member 5 is in use, one end is connected to the first inclined portion 41, and the other end is connected to the second inclined portion 43. In order to avoid that the angle of the support member 5 itself is not compatible with the angle between the first inclined portion 41 and the corrugated bottom 42 of the metal corrugated sheet 4 or the angle between the second inclined portion 43 and the corrugated bottom 42, after the support member 5 is installed on the metal corrugated sheet 4, a large internal stress is formed between the support member 5 and the metal corrugated sheet 4. In one embodiment of the present application, as Fig.13 As shown, the support member 5 may include a support sheet 51 and a connecting sheet 52, and the support sheet 51 and the connecting sheet 52 are hinged.

[0075] It should be clear that in this embodiment, the support piece 51 mainly plays the role of supporting the metal corrugated board 4, and the connecting piece 52 is mainly used to form a connection with the first inclined portion 41 or the second inclined portion 43. Since the support piece 51 and the connecting piece 52 are hinged, the angles of the support piece 51 and the connecting piece 52 can be adjusted according to the angle between the first inclined portion 41 and the corrugated bottom 42 or the angle between the second inclined portion 43 and the corrugated bottom 42 in the metal corrugated board 4 during use, so that the support member 5 can be applied to metal corrugated boards 4 with different angles.

[0076] It should be noted that the embodiment of the photovoltaic bracket proposed in the present application has the photovoltaic bracket connection structure proposed in the above embodiment, so the photovoltaic bracket can limit the rotation of the fastening bolt through the first plane on the first limit strip and the second plane on the second limit strip, in conjunction with the third plane and the fourth plane on the fastening bolt, that is, it can prevent the fastening bolt from loosening. During long-term use, if the fastening bolt is difficult to loosen, the structural strength of the photovoltaic bracket will decrease due to the loosening of the fastening bolt, and the phenomenon of photovoltaic components falling and being damaged or causing safety accidents is unlikely to occur.

[0077] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic support connection structure, the photovoltaic support comprising a first part and a second part, the first part and the second part are connected by a fastening bolt (6); characterized in that: The photovoltaic support connection structure comprises: a first limiting strip (71) and a second limiting strip (72); the first limiting strip (71) and the second limiting strip (72) are elastic or plastic, and the first limiting strip (71) has a first plane, and the second limiting strip (72) has a second plane opposite to the first plane; a threaded hole (73) is formed between the first limiting strip (71) and the second limiting strip (72); A fastening bolt (6); the fastening bolt (6) has a third plane (63) and a fourth plane (64); when in use, the third plane (63) is opposite to the first plane, and the fourth plane (64) is opposite to the second plane, for limiting the rotation of the fastening bolt (6); A screw (9); the screw (9) is adapted to fit the threaded hole (73); when in use, the end of the screw (9) can come into contact with the fastening bolt (6); The photovoltaic support connection structure further comprises a nut (8), wherein the nut (8) is provided with a plastic ring (81); the fastening bolt (6) is provided with a second limiting groove (621), wherein the extension direction of the second limiting groove (621) is parallel to the axial direction of the fastening bolt (6).

2. The photovoltaic support connection structure according to claim 1, characterized in that: The fastening bolt (6) comprises: Threaded rod (62); A nut (61) is arranged at one end of the threaded rod (62), and the third plane (63) and the fourth plane (64) are arranged on the nut (61).

3. The photovoltaic support connection structure according to claim 2, characterized in that: The nut (61) is provided with a first limiting groove (65); the axis lines of the nut (61), the threaded rod (62) and the first limiting groove (65) all coincide with each other.

4. The photovoltaic support connection structure according to claim 2, characterized in that: The nut (61) is in a hexagonal block structure or a square block structure.

5. The photovoltaic support connection structure according to any one of claims 1 to 4, characterized in that: The first limiting strip (71) and the second limiting strip (72) are arranged on the first part; the first part is any one of a metal corrugated plate (2), a support member (5) and a crossbeam (1).

6. The photovoltaic support connection structure according to claim 5, characterized in that: The fastening bolt (6) is threadedly connected to the second part.

7. The photovoltaic support connection structure according to claim 5, characterized in that: The photovoltaic support connection structure also includes a nut (8), and the second part is also provided with a contoured groove (11), and the contoured groove (11) is adapted to fit the nut (8).

8. The photovoltaic support connection structure according to any one of claims 1 to 4, characterized in that: The first plane and the second plane are parallel.

9. The photovoltaic support connection structure according to claim 8, characterized in that: The distance between the first plane and the second plane is greater than or equal to the distance between the third plane (63) and the fourth plane (64), and is less than the maximum outer diameter of the fastening bolt (6) around the third plane (63) and the fourth plane (64).

10. A photovoltaic support, characterized in that: It comprises a photovoltaic support connection structure as described in any one of claims 1 to 9.

11. The photovoltaic support according to claim 10, characterized in that: The photovoltaic support further comprises: Beam (1); A metal corrugated plate (2); the metal corrugated plate (2) is connected to the crossbeam (1), and the metal corrugated plate (2) has metal corrugations (4); At least one support member (5); each support member (5) is arranged on the metal corrugation (4).

12. The photovoltaic support according to claim 11, characterized in that: The support member (5) is in a sheet-like structure.

13. The photovoltaic support according to claim 12, characterized in that: The support member (5) comprises a support sheet (51) and a connecting sheet (52); the support sheet (51) and the connecting sheet (52) are hinged.

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