Connecting device for photovoltaic support
By designing a connection device for photovoltaic brackets, the column height adjustment is achieved using the breaking groove and limit holes, avoiding waste generated by hole punching, improving the stability and durability of the structure, and solving the installation unevenness in the prior art and the problem of low construction efficiency.
Patent Information
- Application Number
- CN202420406034.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-01
AI Technical Summary
The concrete pile foundation installation plane of the array photovoltaic bracket cannot be achieved at the same height. The existing installation method requires secondary processing, which damages the anti-corrosion layer of the upper column, and the drop of iron chips affects construction efficiency.
Design a connecting device for a photovoltaic bracket, including a first hollow column and a second column, and the height is achieved by providing a breaking groove and a limiting hole on the first section of the column, and after the second column is inserted, the first section of the column expands and opens. Adjustment, using clasp and locking parts to ensure structural stability.
Waste generated by punching during assembly is avoided, and the total height is indefinitely adjusted, the contact area between the first hollow column and the second column is increased, and the stability and durability of the structure are improved.
Smart Images
Figure CN222262531U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the photovoltaic field, and in particular to a connection device for a photovoltaic bracket. Background Art
[0002] Because the installation plane of the concrete pile foundation of the array photovoltaic bracket cannot be made equal, in order to ensure the flat installation of the photovoltaic modules, the installation method of the steel upper and lower columns of the bracket is: first process the holes on the lower column, and then drill the installation holes on the upper column after confirming the bracket elevation at the construction site. This is a secondary processing, which will inevitably damage the anti-corrosion layer of the upper column, and the iron filings will fall into the steel pipe and cannot be discharged, which also affects the construction efficiency. Utility Model Content
[0003] An embodiment of the present application provides a connection device for a photovoltaic bracket, which can achieve stepless adjustment of a high degree and has good overall structural stability and durability.
[0004] The embodiment of the present application discloses a connection device for a photovoltaic bracket, including: a first hollow column, the first hollow column includes a first section column and a second section column along its axial direction; the first section column is provided with a plurality of break grooves along its axial direction, and a limiting hole is provided on the first section column; the second column, at least a part of the second column is coaxially inserted in the first section column; a clamp, including a clamp body and a locking piece; a limiting protrusion is provided on the inner circumferential wall of the clamp body, and at least a part of the limiting protrusion is inserted in the limiting hole; the locking piece is used to tighten the clamp body.
[0005] The connection device for photovoltaic bracket of the present application has at least the following beneficial effects:
[0006] The connecting device of the present application can avoid drilling when assembling the second column, will not generate excess waste, and can achieve infinite adjustment of the total height. The contact area between the first hollow column and the second column is larger and the force is better. The clamp body is tightly clamped on the first section of the column, and the clamp body is limited in the form of limiting protrusions and limiting holes to limit the freedom of rotation in the height direction and the horizontal direction. The overall structural stability and durability are better. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:
[0008] Figure 1 It is a structural schematic diagram of the connection device of the present application;
[0009] Figure 2yes Figure 1 Side view of
[0010] Figure 3 is a side view of the first hollow column;
[0011] Figure 4 This is a partial schematic diagram of the first section of columns;
[0012] Figure 5 It is a schematic diagram of the structure of the clamp in this application;
[0013] Figure 6 yes Figure 5 The enlarged view of point A in the middle;
[0014] Figure 7 yes Figure 2 In AA view;
[0015] Figure 8 yes Figure 7 The enlarged view of point B in the middle;
[0016] Description of the reference numerals is as follows:
[0017] 1. first hollow column; 11. first section column; 12. second section column; 121. column base plate; 1a. opening groove; 1b. limiting hole;
[0018] 2. The second column;
[0019] 3. Clamp; 31. Clamp body; 311. Limiting protrusion; 32. Locking piece. DETAILED DESCRIPTION
[0020] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.
[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements.
[0022] In order to facilitate understanding of the technical solution of the present application, the current situation of the industry is first described.
[0023] The steel columns of array-type photovoltaic brackets are generally divided into upper columns and lower columns. The lower columns are installed on the concrete pile foundation or embedded in the concrete pile foundation. Affected by various factors such as construction technology and terrain, the installed or embedded columns cannot be at the same height, so the columns are made into sections for easy height adjustment to ensure that the panel surface is flat after the photovoltaic modules are installed without obvious undulations.
[0024] In the existing installation method, the upper and lower columns generally have 8 installation points, 2 through bolt groups and 6 limit bolt groups. First, the through bolt holes and limit bolt holes are processed on the lower column, and then the plate and limit nut are welded on the lower column. During installation, the lower column is generally fixed first, and the height is adjusted to the required value after the upper column is inserted, and the limit bolts are tightened. Then, the coaxiality (straightness) of the upper and lower columns is adjusted, and the through bolt holes of the upper column are drilled, and finally the through bolt group is installed.
[0025] In the above installation method, first, the plates and nuts on the lower columns need to be welded, which are prone to welding deformation, and the spatter generated needs to be polished, resulting in poor appearance quality; second, due to welding deformation, in order to facilitate adjustment and installation, the assembly gap designed between the columns is large; third, the iron filings generated by drilling fall into the pipe and cannot be cleaned, which affects the construction efficiency; fourth, multiple sets of fasteners are required, and the adjustment of coaxiality (straightness) is inefficient and difficult.
[0026] like Figures 1 to 4 As shown, the embodiment of the present application discloses a connection device for a photovoltaic bracket, including a first hollow column 1, a second column 2 and a clamp 3;
[0027] The first hollow column 1 (circular) includes a first column section 11 and a second column 22 along its axial direction, and a limiting hole 1b is provided on the first column section 11;
[0028] At least part of the second column 2 (circular, solid or hollow) is coaxially inserted into the first column 11;
[0029] like Figure 5 and Figure 6 As shown, the clamp 3 includes a clamp body 31 and a locking piece 32; a limiting protrusion 311 is provided on the inner peripheral wall of the clamp body 31, and at least a part of the limiting protrusion 311 can be inserted into the limiting hole 1b; the locking piece 32 is used to tighten the clamp body 31.
[0030] The first hollow column 1 can be divided into two sections, the first section column 11 is used to assemble the second column 2, and the lower end of the second section column 12 is installed on the foundation surface.
[0031] The opening groove 1a extends downward from the upper end surface of the first section of the column 11 to a certain length.
[0032] Among them, the locking part 32 of the clamp 3 includes a locking bolt and a nut, the locking bolt passes through the connecting ear of the clamp body 31, and the locking bolt and the nut thread cooperate to encircle and tighten the clamp body 31 on the outer periphery of the first section column 11, thereby achieving the clamping between the first section column 11 and the second section column 12.
[0033] In the embodiment of the present application, it is not necessary to drill holes on the second column 2 after on-site docking, and the limit hole 1b on the first section column 11 can be drilled before leaving the factory, which can avoid the problem of drill cuttings falling and being unable to be cleaned up. In addition, due to the provision of the break groove 1a, one end of the second column 2 can be inserted into the first section column 11 and the first section column 11 is expanded to achieve infinite adjustment of the total height of the second column 2 and the first hollow column 1. After the adjustment is completed, the hoop 3 is encircled on the outer periphery of the first section column 11, so that the first section column 11 is The inner periphery of the column 11 is in close contact with the outer periphery of the second column 2 to achieve relative stability between the first hollow column 1 and the second column 2. In order to avoid relative looseness between the clamp 3 and the first section column 11 during long-term use, a limiting protrusion 311 is provided on the clamp body 31. At least part of the limiting protrusion 311 is inserted into the limiting hole 1b. The rotation and displacement in the height direction of the clamp 3 are limited by the cooperation of the limiting hole 1b and the limiting protrusion 311 to ensure the stability of the clamp 3 during long-term use.
[0034] Preferably, Figure 4 As shown, a plurality of breakout grooves 1 a are symmetrically arranged on the first section column 11 , and the inner diameter of the first section column 11 is smaller than the outer diameter of the second section column 2 .
[0035] Among them, two break grooves 1a are designed in the embodiment of the present application, and the two break grooves 1a are symmetrically arranged with respect to a vertical plane.
[0036] The inner diameter of the first column 11 is slightly smaller than the outer diameter of the second column 2 , and the “slightly smaller” may be 0.9 times to 0.97 times.
[0037] In the embodiment of the present application, the rupture groove 1a facilitates the second column 2 to expand into the first column 11. The processing technology of the rupture groove 1a is simple and convenient for mass production. By designing the diameter difference between the first column 11 and the second column 2, the second column 2 after expansion can be tightly fitted with the first column 11, and the relative stability of the structure is achieved by means of the friction between the two. There is no need to adjust the coaxiality between the two, and the assembly is quick.
[0038] Preferably, Figure 2 As shown, a plurality of hoops 3 are arranged on the first section column 11 along the axial direction of the first hollow column 1 .
[0039] Among them, two hoops 3 are illustrated in the embodiment of the present application, and the two hoops 3 are respectively clamped at the upper and lower ends of the first section column 11.
[0040] In the embodiment of the present application, two clamps 3 are designed to clamp onto the first section column 11, which can further improve the stability of the structure and prevent the structure from loosening after long-term use.
[0041] Preferably, Figure 6 As shown, the limiting protrusion 311 and the clamp body 31 are an integral structure, and the limiting protrusion 311 is a hollow structure.
[0042] The limiting protrusion 311 is integrally formed on the inner circumference of the clamp body 31 , and the limiting protrusion 311 is penetrated in the horizontal direction to form a hollow structure.
[0043] In the embodiment of the present application, because the clamp body 31 is a stamped part, the hollow structure of the limiting protrusion 311 can be stamped out by a mold (if it is solid, it needs to be welded), the manufacturing process is simple, and the limiting protrusion 311 and the clamp body 31 are integrally formed, and the structural performance is better.
[0044] Preferably, Figure 6 As shown, the outer peripheral shape of the limiting protrusion 311 is conical.
[0045] In some embodiments, the overall shape of the limiting protrusion 311 is a cone, and the small end of the cone faces the limiting hole 1b on the first section of the column 11.
[0046] In the embodiment of the present application, the purpose of setting the shape of the limiting protrusion 311 to a cone is to facilitate the smooth insertion of the limiting protrusion 311 into the limiting hole 1b (round hole) to achieve the limiting function, and the conical limiting protrusion 311 can also reduce the alignment requirements with the limiting hole 1b during assembly to ensure rapid assembly on site.
[0047] Preferably, Figure 7 and Figure 8 As shown, the cone angle θ of the limiting protrusion 311 is 3 degrees to 10 degrees.
[0048] Among them, Figure 8 As shown, the limiting protrusion 311 has a cone angle θ. In the embodiment of the present application, the cone angle refers to the angle between the generatrix and the axis. Preferably, the cone angle θ is 5 degrees to 8 degrees.
[0049] In the embodiment of the present application, the cone angle is designed to meet the requirement of convenient assembly between the limiting protrusion 311 and the limiting hole 1b, and to avoid excessive free play between the limiting hole 1b and the limiting protrusion 311.
[0050] Preferably, a plurality of limiting protrusions 311 are provided on the inner circumference of the clamp body 31 , and a plurality of limiting holes 1 b corresponding to the limiting protrusions 311 are provided on the first section column 11 .
[0051] Among them, two limiting protrusions 311 are arranged on the inner circumference of the clamp body 31, and a plurality of limiting holes 1b corresponding to the limiting protrusions 311 are arranged on the first section column 11. The limiting holes 1b are radially penetrated and opened on the side wall of the first section column 11.
[0052] In the embodiment of the present application, designing a plurality of limiting protrusions 311 can further improve the durability of the structure, and the plurality of limiting protrusions 311 can achieve limiting from a plurality of positions, and the force bearing performance is better.
[0053] Preferably, a column base plate 121 is provided at the lower end of the second section column 12, and a plurality of column base holes connected to an external structure are provided on the column base plate 121.
[0054] In the embodiment of the present application, a column base plate 121 is fixedly provided at the lower end of the second section column 12, and a plurality of column base holes are provided on the column base plate 121. The column base holes on the column base plate 121 are connected to the external structure via screws.
[0055] An installation method of the connecting device in the embodiment of the present application is as follows:
[0056] 1. The second section of the column 12 is vertically mounted on the external structure through the column base plate 121 at its lower end;
[0057] 2. Insert the lower end of the second column 2 into the first column 11 and expand the first column 11 circumferentially. Select the length of the second column 2 inserted into the first column 11 according to the actual situation.
[0058] 3. Use the clamp body 31 to embrace the outer circumference of the first section column 11, and insert the limiting protrusion 311 on the inner circumference of the clamp body 31 into the limiting hole 1b of the first section column 11, and then use the locking piece 32 to clamp the clamp body 31, so that the inner circumference of the first section column 11 and the outer circumference of the second column 2 are tightly fitted, and the installation is completed.
[0059] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.
Claims
1. A connection device for a photovoltaic support, characterized in that: include: A first hollow column (1), wherein the first hollow column (1) comprises a first column section (11) and a second column section (12) along its axial direction; the first column section (11) is provided with a plurality of break grooves (1a) along its axial direction, and a limiting hole (1b) is provided on the first column section (11); A second column (2), at least a portion of the second column (2) is coaxially inserted into the first column (11); The clamp (3) comprises a clamp body (31) and a locking piece (32); a limiting protrusion (311) is provided on the inner peripheral wall of the clamp body (31), and at least a part of the limiting protrusion (311) is inserted into the limiting hole (1b); the locking piece (32) is used to tighten the clamp body (31).
2. The connection device for a photovoltaic support according to claim 1, characterized in that: A plurality of breakout grooves (1a) are symmetrically arranged on the first section column (11), and the inner diameter of the first section column (11) is smaller than the outer diameter of the second section column (2).
3. The connection device for a photovoltaic support according to claim 1, characterized in that: A plurality of hoops (3) are arranged on the first section of the column (11) along the axial direction of the first hollow column (1).
4. The connection device for a photovoltaic support according to any one of claims 1 to 3, characterized in that: The limiting protrusion (311) and the clamp body (31) are an integral structure, and the limiting protrusion (311) is a hollow structure.
5. The connection device for a photovoltaic support according to claim 4, characterized in that: The outer peripheral shape of the limiting protrusion (311) is conical.
6. The connection device for a photovoltaic support according to claim 5, characterized in that: The cone angle θ of the limiting protrusion (311) is 3 degrees to 10 degrees.
7. The connection device for a photovoltaic support according to claim 5 or 6, characterized in that: A plurality of limiting protrusions (311) are arranged on the inner circumference of the clamp body (31), and a plurality of limiting holes (1b) corresponding one-to-one to the limiting protrusions (311) are arranged on the first section column (11).
8. The connection device for a photovoltaic support according to claim 1, characterized in that: A column base plate (121) is provided at the lower end of the second section column (12), and a plurality of column base holes connected to an external structure are provided on the column base plate (121).