Connecting structure and photovoltaic tracking support

Abstract

The utility model provides a connecting structure and an applicable photovoltaic tracking support thereof, the connecting structure is suitable for connecting a plurality of photovoltaic tracking supports arranged in sequence, each photovoltaic tracking support comprises a first main beam, a second main beam and a connecting section, each first main beam is provided with a plurality of first open holes, each second main beam is provided with a plurality of second open holes, and the connecting section is connected with the first main beam and the second main beam. The first open holes and the second open holes are in one-to-one correspondence in spatial positions, each connecting piece comprises a first connecting part and a second connecting part, the second connecting parts are located above the first connecting parts, and the first connecting parts penetrate through one of the first open holes and the second open holes corresponding to the first open holes; and the hoop is arranged on the connecting section and covers the outer surface of the connecting section so as to fix the connecting piece and the corresponding photovoltaic tracking bracket. The shear capacity of the connecting piece can be improved, the deformation probability of the main beam is reduced, and the torsional bearing capacity and stability of the connecting section are improved.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the field of photovoltaic technology, and particularly relates to a connecting structure and a photovoltaic tracking support. BACKGROUND

[0002] A photovoltaic power generation system can effectively reduce carbon emissions, and therefore gradually becomes a widely used power generation method. A photovoltaic tracking system can make a photovoltaic panel rotate under the driving of a tracking support, effectively improve power generation efficiency, and therefore occupies a dominant position in the photovoltaic market. A main beam is a main component for bearing the weight of a photovoltaic module and transmitting torque in the tracking support. Due to the limitation of production length, the main beam is usually formed by splicing multiple steel pipes. The main beam connecting joint, as a weak part of the whole main beam, needs to have good bending and torsion resistance.

[0003] At present, the connecting piece at the splicing part of the main beam is generally a rivet or a bolt, and the contact surface is usually a semicircular arc surface, and the contact area is small, which is not conducive to the torsion resistance of the connecting joint. In the stress process, stress concentration is more likely to occur around the hole of the main beam, which affects the overall performance of the connecting joint. When the external load increases, the hole wall of the main beam will be deformed due to the shearing action of the rivet or the bolt, and at the same time, the rivet or the bolt will be sheared by the hole wall of the main beam, resulting in failure of the connecting part. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the present application is to provide a connecting structure and a photovoltaic tracking support suitable for the connecting structure, which can improve the shearing resistance of the connecting piece, reduce the deformation probability of the main beam, and improve the torsion resistance and stability of the connecting section.

[0005] To solve the above technical problems, the present application provides a connecting structure suitable for connecting multiple photovoltaic tracking supports arranged in sequence. Each photovoltaic tracking support includes a first main beam, a second main beam and a connecting section. Each first main beam is provided with multiple first openings, and each second main beam is provided with multiple second openings. The first openings and the second openings correspond to each other in space. The connecting structure includes multiple connecting pieces. Each connecting piece includes a first connecting part and a second connecting part. The second connecting part is located above the first connecting part. The first connecting part penetrates one of the first openings and the corresponding second opening. A hoop is arranged on the connecting section and covers the outer surface of the connecting section to fix the connecting piece and the corresponding photovoltaic tracking support.

[0006] Optionally, the width of the first connecting part in the first direction is less than or equal to the width of the first opening and the second opening in the first direction.

[0007] Optionally, the second connecting part has a width along the first direction that is greater than the width of the first connecting part along the first direction, and the width of the second connecting part along the first direction is greater than the width of the first opening and the second opening along the first direction.

[0008] Optionally, the first connecting part has a length along the first direction ranging from 10mm to 15mm, and the second connecting part has a width along the first direction ranging from 20mm to 30mm.

[0009] Optionally, the first connecting part has a thickness along a second direction ranging from 10mm to 15mm, wherein the first direction intersects the second direction.

[0010] Optionally, the clamp includes a fixed part and a clamp connecting part, an inner wall of the fixed part is attached to an outer wall of the photovoltaic tracking support to fix the connecting piece and the corresponding photovoltaic tracking support, and the clamp connecting part is provided with a connecting hole.

[0011] Optionally, the connecting structure further includes a fastener, and the fastener passes through the connecting hole on the clamp connecting part to fix the clamp.

[0012] Optionally, the fastener includes a fastening bolt and a fastening nut.

[0013] To solve the above technical problems, the present application provides a photovoltaic tracking support, which includes: a first main beam and a second main beam, each of the photovoltaic tracking supports has a connecting section, in the connecting section, the first main beam of each photovoltaic tracking support extends into the second main beam of another photovoltaic tracking support adjacent thereto, each first main beam is provided with a plurality of first openings, each second main beam is provided with a plurality of second openings, and the first openings and the second openings correspond to each other in spatial position; and the connecting structure as described above.

[0014] Optionally, the first opening and the second opening include a waist-shaped hole.

[0015] Compared with the prior art, the present application divides the connecting piece into a first connecting part and a second connecting part, and sets the width of the second connecting part along the first direction to be greater than the width of the first connecting part along the first direction, so that the contact area between the second connecting part and the main beam is increased, and the shear capacity of the connecting piece is further improved. Since the contact area between the connecting piece and the main beam is increased, the deformation probability of the main beam can be reduced, thereby improving the torsional carrying capacity and stability of the connecting section. The connecting structure of the present application further includes a clamp, which can further fix the main beam and the connecting piece, and further ensure the connection stability between the main beam and the connecting piece. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute apart of this application, illustrate embodiments of the present application and together with the description serve to explain the principles of the present application. In the drawings:

[0017] Figure 1 is a structural schematic diagram of a photovoltaic tracking support in a state according to an embodiment of the present application;

[0018] Figure 2 is a structural schematic diagram of a photovoltaic tracking support in a state according to an embodiment of the present application;

[0019] Figure 3 is a structural side view of a photovoltaic tracking support according to an embodiment of the present application;

[0020] Figure 4 is a structural schematic diagram of a photovoltaic tracking support according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some examples or embodiments of the present application, and for those skilled in the art, the present application can be applied to other similar scenarios without creative labor on the basis of these drawings. Unless the context clearly indicates otherwise or otherwise stated, the same reference numbers in the drawings represent the same structure or operation.

[0022] As shown in the present application and claims, unless the context clearly indicates otherwise or otherwise stated, "one", "a", "an" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "comprise" and "include" only indicate the inclusion of the steps and elements explicitly identified, and these steps and elements do not constitute an exclusive list, and the method or device can also include other steps or elements.

[0023] The foregoing is a summary and thus contains only the most basic embodiment. The application can be practiced with the specific embodiments and options described herein, and it can also be practiced without such specific embodiments and options. Furthermore, the foregoing summary should not limit the scope of the application to a single feature or option described herein. Accordingly, no single feature or option is a requisite for a practice of the application. Unless otherwise specifically explained herein, the relative arrangements of parts, sequences of processes, numerical expressions, and values stated in these embodiments are not meant to limit the scope of the present application. Also, it is understood that the dimensions of the various parts shown in the drawings are not drawn to scale. Techniques, methods, and devices known to those of ordinary skill can not be discussed in detail because such can be understood by persons skilled in the relevant art. In the examples shown and discussed herein, any specific values are to be interpreted as merely exemplary, and not limiting. Other examples of the exemplary embodiments can have different values. It is noted that like numbers and letters refer to like parts throughout the several views of the drawings and, as such, no further discussions on such will be separately undertaken since such will be understood from the description below.

[0024] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "horizontal", and "top", "bottom" are generally based on the orientation or positional relationships shown in the drawings, and are merely for convenience of description and simplification of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the scope of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the parts themselves.

[0025] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper", and the like can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0026] In addition, it should be noted that the use of the terms "first", "second" and the like does not denote any order, quantity, importance, and the like, but is merely intended to distinguish the corresponding parts, and the above terms have no special meaning unless otherwise stated. In addition, although the terms used in the present application are selected from commonly known terms, some terms mentioned in the specification of the present application can be selected by the applicant according to his or her judgment, and the detailed meanings thereof are described in the relevant part of the description. In addition, the present application is required to be understood not only by the actual terms used, but also by the meaning implied by each term.

[0027] The present application proposes a connecting structure 10 suitable for connecting a plurality of photovoltaic tracking supports 100 arranged in sequence. In order to better illustrate the specific structure of the connecting structure 10, the photovoltaic tracking support 100 will be described first.

[0028] Referring to Figure 1 , the photovoltaic tracking support 100 includes the connecting structure 10, the first main beam 11 and the second main beam 12, each photovoltaic tracking support 100 has a connecting section A1, in the connecting section A1, the first main beam 11 of each photovoltaic tracking support 101 extends into the second main beam 12 of the other photovoltaic tracking support 102 adjacent to it, each first main beam 11 is provided with a plurality of first openings 13, each second main beam 12 is provided with a plurality of second openings 14, the first openings 13 and the second openings 14 correspond one by one in spatial position. It should be noted that the photovoltaic tracking support 101 and the photovoltaic tracking support 102 have the same structure, and the distinction of the reference numerals is only for better illustrating the relationship of the photovoltaic tracking support 101 and the photovoltaic tracking support 102 arranged in sequence, and has no other meaning.

[0029] For example, the first openings 13 on the first main beam 11 and the second openings 14 on the second main beam 12 can be waist-shaped holes, and the number of the first openings 13 and the second openings 14 can be adaptively adjusted according to actual application, which is not limited by the present application.

[0030] Continuing to refer to Figure 1 , the connecting structure 10 includes a plurality of connecting pieces 20, each connecting piece 20 includes a first connecting part 21 and a second connecting part 22, the second connecting part 22 is located above the first connecting part 21, and the first connecting part 21 penetrates one of the first openings 13 and the second openings 14 corresponding to the first openings 13. The number of connecting pieces 20 can be adaptively adjusted according to actual application, which is not limited by the present application.

[0031] Further, the width W1 of the first connecting portion 21 along the first direction X is less than the width W0 of the first opening 13 and the second opening 14 along the first direction X, so that the first connecting portion 21 can be better inserted into the first opening 13 and the second opening 14. The width W2 of the second connecting portion 22 along the first direction X is greater than the width W1 of the first connecting portion 21 along the first direction X, and the width W2 of the second connecting portion 22 along the first direction X is greater than the width W0 of the first opening 13 and the second opening 14 along the first direction X.

[0032] In the embodiment, Figure 1 It is shown that part of the connecting piece 20 (such as the connecting piece 211 marked by the number 211 in the figure, the connecting piece 211 and other connecting pieces 20 have the same structure, and different numbers are used only to illustrate the state of different connecting pieces 20) has been inserted into the first opening 13 and the second opening 14. It can be seen that, due to the width W2 of the second connecting portion 22 along the first direction X being greater than the width W1 of the first connecting portion 21 along the first direction X, and the width W2 of the second connecting portion 22 along the first direction X being greater than the width W0 of the first opening 13 and the second opening 14 along the first direction X.

[0033] Due to the above width setting, when the connecting piece 20 is inserted into the inside of the first opening 13 and the second opening 14, the second connecting portion 22 can be clamped on the second main beam 12 of the photovoltaic tracking support 102, increasing the contact area of the connecting piece 20 and the second main beam 12. The photovoltaic tracking support 100 will bear torque on the connecting section A1 during operation, and the torque is decomposed into tangential force acting on the connecting piece 20 and the second main beam 12. According to the shear stress calculation formula τ=FQ / A, the greater the shear plane area, the smaller the shear stress. Therefore, by connecting the photovoltaic tracking support 101 and the photovoltaic tracking support 102 through the connecting piece 20 of the present application, the shear capacity of the connecting piece can be improved, the probability of main beam deformation can be further reduced, and the torsional bearing capacity and stability of the connecting section can be improved.

[0034] Further, the length of the first connecting portion 21 along the first direction X ranges from 10mm to 15mm, for example, 10mm, 12mm and 15mm, and the preferred length of the first connecting portion 21 along the first direction X in the embodiment is 10mm. The thickness of the first connecting portion 21 along the second direction Y intersecting the first direction X ranges from 10mm to 15mm, for example, 10mm, 12mm and 15mm, and the preferred thickness of the first connecting portion 21 along the second direction Y in the embodiment is 15mm. The width of the second connecting portion 22 along the first direction X ranges from 20mm to 30mm, for example, 20mm, 25mm and 30mm, and the preferred width of the second connecting portion 22 along the first direction X in the embodiment is 30mm.

[0035] In the embodiment, when all the connecting pieces 20 have been inserted into the first opening 13 and the second opening 14, the connecting structure 10 further fixes the connecting pieces 20 and the photovoltaic tracking support 101 and the photovoltaic tracking support 102 by using the hoop 30. More specifically,Figure 2 By Figure 2 As can be seen, the clamp 30 is arranged on the connecting section A1 and covers the outer surface of the connecting section A1 to fix the connecting member 20 and the corresponding photovoltaic tracking support 101 and photovoltaic tracking support 102.

[0036] Further, the clamp 30 comprises a fixing part 31 and a clamp connecting part 32, the inner wall S1 of the fixing part 31 is attached to the outer wall S2 of the photovoltaic tracking support 101 and photovoltaic tracking support 102 to fix the connecting member 20 and the corresponding photovoltaic tracking support 101 and photovoltaic tracking support 102, and the clamp connecting part 32 is provided with a connecting hole 33.

[0037] Further referring to Figure 3 And Figure 4 , Figure 3 Fig. 4 shows a side view of the photovoltaic tracking support 101 and photovoltaic tracking support 102, Figure 4 Fig. 5 shows a structural schematic view of the photovoltaic tracking support 101 and photovoltaic tracking support 102 after being fixed. By Figures 3-4 As can be seen, the clamp 30 further comprises a fastener 34, in this embodiment, the fastener 34 comprises a fastening nut 35 and a fastening bolt 36. After the inner wall of the fixing part 31 is attached to the outer wall of the photovoltaic tracking support 101 and photovoltaic tracking support 102, the fastening bolt 36 passes through the connecting hole 33 on the clamp connecting part 32 and is fixed to the clamp 30 by cooperating with the fastening nut 35, so as to realize the fixation of the clamp 30 to the connecting member 20 and the photovoltaic tracking support 101 and photovoltaic tracking support 102. After the clamp 30 fixes the connecting member 20 and the photovoltaic tracking support 101 and photovoltaic tracking support 102, the connecting member 20 cannot move inside the clamp 30.

[0038] The application divides the connecting member into a first connecting part and a second connecting part, and sets the width of the second connecting part along the first direction to be greater than the width of the first connecting part along the first direction, so as to increase the contact area between the second connecting part and the main beam, further improve the shear capacity of the connecting member, and reduce the deformation probability of the main beam due to the increased contact area between the connecting member and the main beam, thereby improving the torsional carrying capacity and stability of the connecting section. The connecting structure of the application further comprises a clamp, which can further fix the main beam and the connecting member, and further ensure the connection stability between the main beam and the connecting member.

[0039] The above has described the basic concept, and it is obvious that the above-mentioned application disclosure is only taken as an example and does not constitute a limitation on the application. Although it is not explicitly stated here, those skilled in the art can make various modifications, improvements and corrections to the application. Such modifications, improvements and corrections are suggested in the application, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the application.

[0040] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0041] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0042] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of scope in some embodiments of this application are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0043] Although this application has been described with reference to specific embodiments, those skilled in the art should recognize that the above embodiments are only used to illustrate this application, and various equivalent changes or substitutions can be made without departing from the spirit of this application. Therefore, any changes or modifications to the above embodiments within the essential spirit of this application will fall within the scope of the claims of this application.

Claims

1. A connection structure suitable for connecting multiple photovoltaic tracking brackets arranged sequentially, each photovoltaic tracking bracket including a first main beam, a second main beam, and a connecting section, each first main beam having multiple first openings, each second main beam having multiple second openings, the first openings and the second openings corresponding one-to-one in spatial position, characterized in that, include: Multiple connectors, each connector including a first connecting portion and a second connecting portion, the second connecting portion being located above the first connecting portion, the first connecting portion passing through one of the first openings and the second opening corresponding to the first opening; A clamp is provided on the connecting section and covers the outer surface of the connecting section to fix the connector to the corresponding photovoltaic tracking bracket.

2. The connection structure as described in claim 1, characterized in that, The width of the first connecting portion along the first direction is less than or equal to the width of the first opening and the second opening along the first direction.

3. The connection structure as described in claim 2, characterized in that, The width of the second connecting portion along the first direction is greater than the width of the first connecting portion along the first direction, and the width of the second connecting portion along the first direction is greater than the widths of the first opening and the second opening along the first direction.

4. The connection structure as described in claim 3, characterized in that, The length of the first connecting part along the first direction ranges from 10mm to 15mm, and the width of the second connecting part along the first direction ranges from 20mm to 30mm.

5. The connection structure as described in claim 2, characterized in that, The thickness of the first connecting portion along the second direction ranges from 10mm to 15mm, wherein the first direction intersects the second direction.

6. The connection structure as described in claim 1, characterized in that, The clamp includes a fixing part and a clamp connecting part. The inner wall of the fixing part is fitted with the outer wall of the photovoltaic tracking bracket to fix the connector and the corresponding photovoltaic tracking bracket. The clamp connecting part is provided with a connecting hole.

7. The connection structure as described in claim 6, characterized in that, It also includes fasteners that pass through the connecting holes on the clamp connection portion to secure the clamp.

8. The connection structure as described in claim 7, characterized in that, The fasteners include fastening bolts and fastening nuts.

9. A photovoltaic tracking bracket, characterized in that, include: First main beam and second main beam, each of the photovoltaic tracking brackets has a connecting section, in which the first main beam of each photovoltaic tracking bracket extends into the second main beam of the nearest adjacent photovoltaic tracking bracket, each first main beam is provided with a plurality of first openings, each second main beam is provided with a plurality of second openings, and the first openings and the second openings correspond one-to-one in spatial position; The connection structure as described in any one of claims 1 to 8.

10. The photovoltaic tracking bracket as described in claim 9, characterized in that, The first opening and the second opening include oblong openings.

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