Connecting structure applied to photovoltaic support and photovoltaic support

Abstract

The utility model relates to a connecting structure applied to a photovoltaic support and the photovoltaic support. Comprising an outer shaft and an inner shaft; the outer shaft is provided with a first spherical groove with an opening; the inner shaft is provided with a spherical raised head, one end of the spherical raised head extends into the first spherical groove, and the other end of the spherical raised head is exposed through the opening; wherein the spherical raised head can rotate in the first spherical groove, and the groove wall of the first spherical groove prevents the spherical raised head from being separated from the first spherical groove through the opening. In this way, the connecting structure can be installed on the rugged topography; and meanwhile, the spherical raised head slides in the first spherical groove, so that the torque release function can be realized, the torques between the two adjacent photovoltaic main beams are not mutually influenced, and the synchronism requirement of the two adjacent photovoltaic main beams is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photovoltaic technology, in particular to a connecting structure applied to a photovoltaic support and the photovoltaic support. BACKGROUND

[0002] In order to install a photovoltaic support on undulating terrain such as mountains and hills, the related art generally adopts the ways of leveling the site, cutting the site or increasing the height of the column, which will increase the additional cost and significantly reduce the economic performance of the project. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a connecting structure applied to a photovoltaic support in view of the problem that the existing photovoltaic support will increase the cost when being installed on undulating terrain.

[0004] A connecting structure applied to a photovoltaic support, comprising:

[0005] an outer shaft, which is configured with a first spherical groove with an opening;

[0006] an inner shaft, which is configured with a spherical protrusion; one end of the spherical protrusion extends into the first spherical groove, and the other end of the spherical protrusion is exposed through the opening;

[0007] wherein the spherical protrusion can rotate in the first spherical groove, and the groove wall of the first spherical groove blocks the spherical protrusion from disengaging from the first spherical groove through the opening.

[0008] In one of the embodiments, the outer shaft comprises a main body segment and a locking segment which are distributed along the axial direction of the outer shaft, and the main body segment is detachably connected with the locking segment.

[0009] The main body segment and the locking segment cooperatively configure the first spherical groove.

[0010] In one of the embodiments, the outer surface of the main body segment and the outer surface of the locking segment are located on the spherical surface of the same virtual sphere; and / or,

[0011] the main body segment and the locking segment are located on both sides of the median plane of the spherical protrusion.

[0012] In one of the embodiments, the main body segment and the locking segment are respectively configured with a first connecting part and a second connecting part, and the first connecting part and the second connecting part are threadedly connected.

[0013] In one of the embodiments, the side surface of the main body segment away from the spherical protrusion is configured with a first accommodating groove; and the side surface of the locking segment away from the spherical protrusion is configured with a second accommodating groove.

[0014] The connecting structure further comprises a connecting member arranged in the first accommodating groove and the second accommodating groove to connect the main body segment and the locking segment.

[0015] In one of the embodiments, the connecting member comprises a plurality of connecting members which are arranged along the circumference of the outer shaft; and / or,

[0016] The outer surface of the connecting member and the outer surface of the outer shaft are located on the spherical surface of the same virtual sphere.

[0017] In one of the embodiments, a damping pad is arranged between the outer shaft and the spherical head.

[0018] In one of the embodiments, the projection of the connecting member on the spherical head and the projection of the damping pad on the spherical head have an overlapping area; and / or,

[0019] One of the main body segment and the locking segment is provided with a first mounting groove for mounting the damping pad, and the first mounting groove is in communication with the first spherical groove.

[0020] In one of the embodiments, the connecting structure further comprises a mounting seat for connecting with the support column of the photovoltaic support, and the mounting seat is configured with a second spherical groove for rotationally fitting with the outer shaft, and the groove wall of the second spherical groove can block the outer shaft from being separated from the second spherical groove.

[0021] A photovoltaic support comprises a plurality of photovoltaic assemblies and a connecting structure applied to the photovoltaic support as described above, and the photovoltaic assembly comprises a photovoltaic main beam, and the photovoltaic main beams in two adjacent photovoltaic assemblies are connected through the connecting structure.

[0022] The connecting structure applied to the photovoltaic support provided in the first embodiment of the present application is shown in the figure. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The connecting structure applied to the photovoltaic support provided in the first embodiment of the present application is shown in the figure.

[0024] Figure 2 The connecting structure applied to the photovoltaic support provided in the first embodiment of the present application is shown in the figure. Figure 1 The connecting structure applied to the photovoltaic support provided in the first embodiment of the present application is shown in the figure.

[0025] Figure 3 The connecting structure applied to the photovoltaic support provided in the first embodiment of the present application is shown in the figure. Figure 2 The connecting structure applied to the photovoltaic support provided in the first embodiment of the present application is shown in the figure.

[0026] Figure 4 The connecting structure applied to the photovoltaic support provided in the first embodiment of the present application is shown in the figure.

[0027] Figure 5 The connecting structure applied to the photovoltaic support provided in the first embodiment of the present application is shown in the figure. Figure 4 The connecting structure applied to the photovoltaic support provided in the first embodiment of the present application is shown in the figure.

[0028] Figure 6 The connecting structure applied to the photovoltaic support provided in the first embodiment of the present application is shown in the figure. Figure 5 The connecting structure applied to the photovoltaic support provided in the first embodiment of the present application is shown in the figure.

[0029] Figure 7 FIG. 1 shows a perspective view of a connection structure applied to a photovoltaic support. Figure 4 FIG. 2 shows an exploded view of the connection structure applied to the photovoltaic support.

[0030] Figure 8 FIG. 3 shows a partial view of the connection structure applied to the photovoltaic support. Figure 7 FIG. 4 shows a partial view of the connection structure applied to the photovoltaic support.

[0031] 100, outer shaft; 110, first spherical groove; 111, opening; 120, main body section; 121, first connecting portion; 122, first accommodating groove; 123, first mounting groove; 130, locking section; 131, second connecting portion; 132, second accommodating groove; 140, connecting piece; 150, damping pad; 200, inner shaft; 210, spherical protrusion; 310, mounting seat; 311, second spherical groove; 312, first mounting portion; 313, second mounting portion; 320, support column; 321, first adjusting hole; 330, column connecting frame; 410, main beam connecting portion; 411, first connecting hole; 500, photovoltaic main beam; 510, second adjusting hole. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is to be understood that the present application is not limited to the specific embodiments described below.

[0033] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or implicating the number of indicated technical features. Thus, a feature defined with "first" or "second" can include at least one of the features explicitly or implicitly. In the description of the present application, the term "plurality" means at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0035] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0037] It should be noted that if an element is referred to as "fixed to" or "disposed to" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0038] Reference Figures 1 to 3As shown, an embodiment provided by the application provides a connecting structure applied to a photovoltaic support, which comprises an outer shaft 100 and an inner shaft 200; the outer shaft 100 is configured with a first spherical groove 110 with an opening 111; the inner shaft 200 is configured with a spherical protrusion 210, one end of the spherical protrusion 210 extends into the first spherical groove 110, and the other end of the spherical protrusion 210 is exposed through the opening 111; wherein the spherical protrusion 210 can rotate in the first spherical groove 110, and the groove wall of the first spherical groove 110 blocks the spherical protrusion 210 from disengaging from the first spherical groove 110 through the opening 111.

[0039] The connecting structure applied to the photovoltaic support, the outer shaft 100 and the inner shaft 200 are respectively used to be connected with two adjacent photovoltaic main beams 500, the first spherical groove 110 and the spherical protrusion 210 are arranged between the outer shaft 100 and the inner shaft 200, and the spherical protrusion 210 and the first spherical groove 110 are rotationally matched, so that the outer shaft 100 and the inner shaft 200 can produce rotation in any direction, that is, the axial direction of the outer shaft 100 can be non-parallel to the axial direction of the inner shaft 200, the axes of the two adjacent photovoltaic main beams 500 can not be on the same straight line, the two adjacent photovoltaic main beams 500 are allowed to be installed at a certain angle in the vertical direction and the east-west direction, so as to adapt to the installation of undulating terrains such as mountains and hills, without the need to level the site or cut the site, without the need to change the height of the column, and the requirements for pile driving precision and installation cost are reduced. At the same time, through the sliding of the spherical protrusion 210 in the first spherical groove 110, the function of torque release can be realized, the torque between the two adjacent photovoltaic main beams 500 does not affect each other, that is, the movement of the driving units arranged in the two adjacent photovoltaic main beams 500 does not affect each other, the synchronization requirement of the two adjacent photovoltaic main beams 500 is reduced, the controller development cost is reduced, and the risk of the connection node and even the photovoltaic support being twisted and damaged due to the asynchronization of the two adjacent photovoltaic main beams 500 is avoided; and when a driving unit fails, the entire row of photovoltaic supports does not need to be shut down for maintenance, only the driving unit at the fault position needs to be shut down, thereby reducing the loss of power generation caused by system maintenance.

[0040] As Figure 1As shown in the embodiment, one end of the outer shaft 100 away from the inner shaft 200 and one end of the inner shaft 200 away from the outer shaft 100 are connected with the main beam connecting part 410, which is connected with the photovoltaic main beam 500 on the corresponding side through the main beam connecting part 410 on both sides, so as to realize the connection of the photovoltaic main beam 500 in the adjacent two photovoltaic assemblies. Specifically, the second adjusting hole 510 is arranged on the photovoltaic main beam 500, and the first connecting hole 411 is arranged on the main beam connecting part 410. The fastener is passed through the first connecting hole 411 and the second adjusting hole 510 to realize the connection of the main beam connecting part 410 and the photovoltaic main beam 500. In some embodiments, the second adjusting hole 510 is specifically a long hole, so that the connection position of the fastener in the second adjusting hole 510 can be changed during the installation of the photovoltaic support, so as to change the spacing of the arrangement of the adjacent two photovoltaic assemblies, and adapt to the actual use requirement.

[0041] As shown in the embodiment, Figure 7 In an embodiment, the outer shaft 100 is in the shape of a goblet, and a plurality of threaded holes are arranged on one end of the outer shaft 100 facing the main beam connecting part 410. A plurality of corresponding threaded holes are arranged on one end of the main beam connecting part 410 facing the outer shaft 100. A plurality of bolts are passed through the corresponding threaded holes to realize the connection of the main beam connecting part 410 and the outer shaft 100. The connection mode of the inner shaft 200 and the main beam connecting part 410 on the corresponding side can refer to the connection mode of the outer shaft 100 and the main beam connecting part 410, which will not be described here.

[0042] As shown in the embodiment, Figures 6 to 7 In one of the embodiments, the connecting structure further comprises a mounting seat 310 for connecting with the support column 320 of the photovoltaic support. The mounting seat 310 is provided with a second spherical groove 311 for rotatingly matching with the outer shaft 100, and the groove wall of the second spherical groove 311 can block the outer shaft 100 from leaving the second spherical groove 311. The outer shaft 100 and the inner shaft 200 can be connected on the support column 320 through the mounting seat 310. The connecting structure can transmit the shearing force, but cannot transmit the torque and bending moment, so as to cooperate with the support column 320 to support the photovoltaic main beam 500 and reduce the deflection of the adjacent two photovoltaic main beams 500.

[0043] At the same time, since the inner ring of the mounting seat 310 is provided with the second spherical groove 311, the outer shaft 100 can rotate in the second spherical groove 311 to adapt to the actual installation angle of the photovoltaic main beam 500. For example, in the embodiment shown in Figure 5 When the connecting structure is applied to the undulating terrain, the outer shaft 100 is rotated in the second spherical groove 311, that is, the outer shaft 100 is rotated relative to the mounting seat 310, so as to adjust the installation angle of the corresponding photovoltaic main beam 500, so that the left photovoltaic main beam 500 is inclined downward to adapt to the installation of the complex terrain, and the use adaptability is stronger.

[0044] As shown in Figure 6 In an embodiment, the mounting seat 310 can be designed as a split structure, including a first mounting part 312 and a second mounting part 313. The first mounting part 312 is sleeved on the outer shaft 100 from the left side, and the second mounting part 313 is sleeved on the outer shaft 100 from the right side. Then the first mounting part 312 and the second mounting part 313 are locked by fasteners such as bolts. Through the split design of the mounting seat 310, the outer shaft 100 is facilitated to be assembled on the mounting seat 310.

[0045] In an embodiment, as shown in Figure 7 The mounting seat 310 is installed on the support column 320 through the column connecting bracket 330. Specifically, the column connecting bracket 330 is in the form of a U-shaped clamp structure. The lower surface of the mounting seat 310 and the upper surface of the column connecting bracket 330 are attached, and the two are connected by fasteners such as bolts. The outer surface of the support column 320 is attached to the inner side surface of the column connecting bracket 330, and is locked by fasteners. Further, the support column 320 is also provided with a plurality of groups of first adjusting holes 321 arranged in the height direction. When it is necessary to adjust the support height of the support column 320, that is, to adjust the connection height of the support column 320 and the connecting structure, the connection position of the column connecting bracket 330 and the support column 320 is changed, so that the fasteners are connected with one of the groups of first adjusting holes 321.

[0046] Referring to Figure 3 In one of the embodiments, the outer shaft 100 includes a main body segment 120 and a locking segment 130 distributed along the axial direction of the outer shaft 100. The main body segment 120 and the locking segment 130 are detachably connected. The main body segment 120 and the locking segment 130 cooperatively form the first spherical groove 110. By setting the split main body segment 120 and the locking segment 130, on the one hand, the assembly of the spherical protrusion 210 and the outer shaft 100 is facilitated, and on the other hand, after the assembly is completed, the axial two ends of the spherical protrusion 210 can be respectively limited by the main body segment 120 and the locking segment 130, thereby reducing the possibility of the spherical protrusion 210 being separated from the first spherical groove 110. The main body segment 120 and the locking segment 130 are located on both sides of the median plane of the spherical protrusion 210, and the opening 111 side of the first spherical groove 110 is located on the locking segment 130, so that the size of the opening 111 of the first spherical groove 110 is smaller than the outer diameter of the spherical protrusion 210, thereby limiting the spherical protrusion 210. It can be understood that the median plane of the sphere refers to a plane that passes through the center of the sphere and divides the sphere into two completely symmetrical parts. This plane divides the sphere into two equal hemispheres.

[0047] Referring to Figure 3As shown, in one of the embodiments, the curvature center of the main section 120 and the curvature center of the locking section 130 coincide, and the outer diameter of the main section 120 and the locking section 130 is the same. That is, the outer surface of the main section 120 and the outer surface of the locking section 130 are located on the spherical surface of the same virtual sphere, that is, the outer circle of the main section 120 and the locking section 130 is the spherical surface with the same radius, and the inner circle of the main section 120 and the locking section 130 cooperatively forms the first spherical groove 110. In this way, the main section 120 and the locking section 130 are connected to present an integrated structure, which can be synchronously rotated smoothly in the second spherical groove 311 of the mounting seat 310.

[0048] Referring to Figure 3 As shown, in one of the embodiments, the main section 120 and the locking section 130 are respectively configured with a first connecting part 121 and a second connecting part 131, and the first connecting part 121 and the second connecting part 131 are threadedly connected. By setting the main section 120 and the locking section 130 in the threadedly connected manner, the detachable connection of the two is facilitated, the assembly difficulty of the two is reduced, the assembly efficiency is improved, and the limiting effect on the spherical protrusion 210 is ensured.

[0049] In one embodiment, referring to Figures 6 to 8 As shown, the damping pad 150 is arranged between the outer shaft 100 and the inner shaft 200, that is, between the outer shaft 100 and the spherical protrusion 210. Since the outer shaft 100 and the inner shaft 200 can rotate relative to each other, that is, the end of the connecting structure is a torque free end, which is easily affected by external loads to cause vibration, so that one end of the photovoltaic main beam 500 is easy to transmit the vibration to the other end of the photovoltaic main beam 500, or the vibration of the two ends of the photovoltaic main beam 500 is superimposed, and the photovoltaic support is difficult to stabilize. Therefore, by arranging the damping pad 150, the vibration of the connecting structure caused by the external influence can be reduced. The damping pad 150 is made of elastically deformable material, and when the outer shaft 100 or the inner shaft 200 vibrates, the transmission of the vibration is reduced by the elastic deformation of the damping pad 150. The damping pad 150 can be made of rubber, plastic, and metal with damping performance, such as spring steel, titanium alloy, stainless steel, aluminum alloy, and magnesium alloy.

[0050] As Figure 8 As shown, in one embodiment, the damping pad 150 is bowl-shaped, so that it can better fit the spherical protrusion 210 and improve the connection tightness of the two.

[0051] Referring to Figures 6 to 8As shown, in one embodiment, the damping pad 150 does not cover the entire inner ring of the outer shaft 100; that is, the projected area of ​​the damping pad 150 within the first spherical groove 110 is smaller than the area of ​​the first spherical groove 110. This arrangement facilitates the placement of the damping pad 150 into the first spherical groove 110 of the outer shaft 100. In one embodiment, the outer shaft 100 is provided with a first mounting groove 123 for mounting the damping pad 150, and the first mounting groove 123 communicates with the first spherical groove 110. By accommodating the damping pad 150 within the first mounting groove 123, the fit between the damping pad 150 and the outer shaft 100, as well as between the damping pad 150 and the inner shaft 200, is improved.

[0052] See Figure 4 , Figures 6 to 8 As shown, in one embodiment, the surface of the main body segment 120 facing away from the spherical protrusion 210 has a first receiving groove 122; the surface of the locking segment 130 facing away from the spherical protrusion 210, i.e., its outer surface, has a second receiving groove 132; the connecting structure also includes a connector 140, which is disposed in the first receiving groove 122 and the second receiving groove 132 to connect the main body segment 120 and the locking segment 130. The connector 140 is made of a metal with vibration damping properties, such as the aforementioned titanium alloy, stainless steel, aluminum alloy, and magnesium alloy. Thus, the connector 140 not only connects the main body segment 120 and the locking segment 130, ensuring synchronous rotation of the main body segment 120 and the locking segment 130, but also cooperates with the vibration damping pad 150 to further enhance the vibration damping effect of the connecting structure. It can be understood that the connector 140 is tightly fitted with the first receiving groove 122 and the second receiving groove 132.

[0053] See Figure 6 As shown, in one embodiment, the outer surface of the connector 140 and the outer surface of the outer shaft 100 are located on the same virtual sphere, that is, the curvature center of the connector 140 coincides with the curvature center of the outer shaft 100, so that after the connector 140 connects the main body segment 120 and the locking segment 130, the three form an approximately integrated spherical structure, which improves the smoothness of the free rotation of the outer shaft 100 and the connector 140 in the second spherical groove 311 of the mounting base 310, so as to adapt to the adjustment of the actual installation angle of the photovoltaic main beam 500.

[0054] See Figure 7 As shown, in one embodiment, the connector 140 includes multiple connectors 140, which are spaced apart circumferentially along the outer shaft 100. The connectors 140 are embedded in the first receiving groove 122 of the main body section 120 and the second receiving groove 132 of the locking section 130. By providing multiple connectors 140 evenly distributed circumferentially, the connection structure achieves good vibration reduction in the circumferential direction.

[0055] SeeFigure 6 As shown in the figure, in one of the embodiments, the projection of the connecting member 140 on the spherical boss 210 has an overlapping area with the projection of the damping pad 150 on the spherical boss 210, which can be understood as the projection of the connecting member 140 and the damping pad 150 on the spherical boss 210 has an overlapping projection area in the circumferential direction of the spherical boss 210. In this way, it can be ensured that all the contact positions between the outer shaft 100 and the inner shaft 200 are provided with damping structures, so as to enhance the damping effect of the connecting structure.

[0056] As shown in the figures, Figure 4 and Figure 7 Further, an embodiment of the present application further provides a photovoltaic support, which comprises a plurality of photovoltaic assemblies and the connecting structure applied to the photovoltaic support as above, and the photovoltaic assembly comprises a photovoltaic main beam 500, and the photovoltaic main beams 500 in two adjacent photovoltaic assemblies are connected through the connecting structure. Since two adjacent photovoltaic supports are connected through one connecting structure, a plurality of photovoltaic supports can be spliced into a long support through a plurality of connecting structures, and one driving unit is arranged on the photovoltaic main beam 500 of each photovoltaic support, so that the modular design of the photovoltaic support can be realized, and the actual use requirement can be met. The specific connection mode of the photovoltaic main beam 500 and the connecting structure can refer to the connection between the main beam connecting portion 410 and the photovoltaic main beam 500 as described above, and will not be described here.

[0057] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that they are within the scope of the present application.

[0058] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A connection structure for use in photovoltaic brackets, characterized in that, The connection structure includes: An outer shaft (100) is constructed with a first spherical groove (110) having an opening (111). An inner shaft (200) is provided with a spherical protrusion (210); one end of the spherical protrusion (210) extends into the first spherical groove (110), and the other end of the spherical protrusion (210) is exposed through the opening (111); The spherical protrusion (210) is able to rotate within the first spherical groove (110), and the groove wall of the first spherical groove (110) prevents the spherical protrusion (210) from disengaging from the first spherical groove (110) through the opening (111).

2. The connection structure applied to a photovoltaic support according to claim 1, characterized in that, The outer shaft (100) includes a main body section (120) and a locking section (130) distributed along its own axial direction, the main body section (120) and the locking section (130) being detachably connected; The main body section (120) and the locking section (130) cooperate to form the first spherical groove (110).

3. The connection structure applied to photovoltaic brackets according to claim 2, characterized in that, The outer surface of the main body segment (120) and the outer surface of the locking segment (130) are located on the same virtual sphere; and / or, The main body segment (120) and the locking segment (130) are located on both sides of the mid-plane of the spherical protrusion (210).

4. The connection structure applied to a photovoltaic support according to claim 3, characterized in that, The main body section (120) and the locking section (130) are respectively constructed with a first connecting part (121) and a second connecting part (131), and the first connecting part (121) and the second connecting part (131) are threadedly connected.

5. The connection structure applied to a photovoltaic support according to claim 3, characterized in that, The main body section (120) has a first receiving groove (122) on the side surface opposite to the spherical protrusion (210); the locking section (130) has a second receiving groove (132) on the side surface opposite to the spherical protrusion (210). The connection structure further includes a connector (140) disposed in the first receiving groove (122) and the second receiving groove (132) to connect the main body segment (120) and the locking segment (130).

6. The connection structure applied to a photovoltaic support according to claim 5, characterized in that, The connectors (140) include a plurality of connectors (140) spaced apart circumferentially along the outer shaft (100); and / or, The outer surface of the connector (140) and the outer surface of the outer shaft (100) are located on the same virtual sphere.

7. The connection structure applied to a photovoltaic support according to claim 5, characterized in that, A damping pad (150) is connected between the outer shaft (100) and the spherical protrusion (210).

8. The connection structure applied to a photovoltaic support according to claim 7, characterized in that, The projection of the connector (140) onto the spherical protrusion (210) overlaps with the projection of the damping pad (150) onto the spherical protrusion (210); and / or, One of the main body section (120) and the locking section (130) is provided with a first mounting groove (123) for mounting the vibration damping pad (150), and the first mounting groove (123) is connected to the first spherical groove (110).

9. The connection structure applied to a photovoltaic support according to any one of claims 1 to 8, characterized in that, The connection structure also includes a mounting base (310) for connecting to the support column (320) of the photovoltaic bracket. The mounting base (310) is constructed with a second spherical groove (311) for rotating with the outer shaft (100), and the groove wall of the second spherical groove (311) can prevent the outer shaft (100) from disengaging from the second spherical groove (311).

10. A photovoltaic support structure, characterized in that, The device includes multiple photovoltaic modules and a connection structure for use in photovoltaic mounting as described in any one of claims 1 to 9. The photovoltaic modules include a photovoltaic main beam (500), and the photovoltaic main beams (500) of two adjacent photovoltaic modules are connected by the connection structure.

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