Integrated short purline and photovoltaic mounting rack

Abstract

The invention relates to the technical field of photovoltaic module installation, in particular to an integrated short purlin which comprises a purlin body, the purlin body is provided with a supporting plate used for supporting the bottom end of a module and at least one side wall with one end connected with the supporting plate, and the other end, away from the supporting plate, of the side wall is provided with a lower positioning groove matched with the section shape of a main shaft. The side wall extends in the length direction of the main shaft and forms a certain thickness, the purline is provided with a first auxiliary positioning structure used for being matched with the first locking structure to fix the purline and the main shaft, and the purline is provided with a second auxiliary positioning structure used for being matched with the second locking structure to fix the purline and the assembly. The functions of the purline reinforcer and the purline are integrated on one part, and an integrated structural design is adopted, so that the number of related parts of the purline can be reduced, the mounting efficiency is improved, unnecessary materials can be saved, the production process is simplified, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic assembly installation, and in particular to an integrated short purlin and a photovoltaic installation frame. Background Art

[0002] As attached Figure 1 As shown, the installation of purlins in the prior art needs to be used in conjunction with purlin reinforcements. The purlin reinforcements are at the bottom and the purlins are at the top. The function of the purlin reinforcements is to fit closely with the outer contour of the main shaft to provide support for the purlins. The function of the purlins is to install photovoltaic modules. The two are connected by U-bolts. During the installation process, one worker is required to keep the purlins and the purlin reinforcements in contact and unable to move relative to each other, and another worker connects the purlins and the purlin reinforcements to the main shaft through U-bolts. Finally, the modules are installed. The installation steps are cumbersome and difficult, which is not conducive to rapid batch installation of modules. Summary of the invention

[0003] In view of this, an object of the present invention is to provide an integrated short purlin to solve the technical problem of low efficiency of the existing purlin during installation.

[0004] Based on the above-mentioned purpose, the present invention provides an integrated short purlin, including a purlin, wherein the purlin has a support plate for supporting the bottom end of the assembly, and at least one side wall connected to the support plate at one end, and the side wall is provided with a lower positioning groove matching the cross-sectional shape of the main shaft at the other end away from the support plate, and the side wall extends in the length direction of the main shaft and forms a certain thickness, and the purlin is provided with a first auxiliary positioning structure for cooperating with the first locking structure to fix the purlin to the main shaft, and the purlin is provided with a second auxiliary positioning structure for cooperating with the second locking structure to fix the purlin to the assembly.

[0005] As a preferred technical solution of the present invention, an extension plate for increasing the contact surface between the lower positioning groove and the main shaft is provided on the side wall of the purlin, and the extension plates are provided in plurality and arranged in a central annular array about the lower positioning groove.

[0006] As a preferred technical solution of the present invention, the side wall of the purlin has a folded angle along its length direction, thereby forming a folded edge on the side wall.

[0007] As a preferred technical solution of the present invention, the first auxiliary positioning structure is at least two first positioning holes opened on the purlin support plate.

[0008] As a preferred technical solution of the present invention, the first locking structure includes:

[0009] A U-shaped bolt and a U-shaped bolt fastening nut matching the U-shaped bolt, wherein the U-shaped bolt matches the first positioning hole;

[0010] A purlin fixing piece is provided with an upper positioning groove matching the cross-sectional shape of the main shaft, and the purlin fixing piece is provided with at least two second positioning holes matching the U-bolts. The purlin, the U-bolts and the purlin fixing piece together form a clamping space for clamping the main shaft.

[0011] As a preferred technical solution of the present invention, the second auxiliary positioning structure is a first component mounting hole opened on the purlin support plate, the second locking structure includes a positioning bolt and a positioning nut matching the positioning bolt, the first component mounting hole is used to cooperate with the positioning bolt, and the positioning bolt cooperates with the second component mounting hole opened on the component surface.

[0012] As a preferred technical solution of the present invention, the second auxiliary positioning structure is a quick-release clamp installation groove provided on the side wall of the purlin, the second locking structure is a quick-release clamp, and the quick-release clamp installation groove is used to install the quick-release clamp.

[0013] As a preferred technical solution of the present invention, a pre-positioning convex bump is provided on the support plate of the purlin, and the pre-positioning convex bump matches with the waist-shaped hole opened on the surface of the component.

[0014] As a preferred technical solution of the present invention, the purlin has two side walls, the two side walls are symmetrically arranged with respect to the support plate, and the side walls are integrally designed with the support plate.

[0015] Based on the above purpose, the present invention also provides a photovoltaic mounting frame, including components, a main shaft and an integrated short purlin, wherein the main shaft is a multi-sided column, and correspondingly, the lower positioning groove is a polygonal groove matching the edge of the column, and the polygonal groove and the edge of the column are fitted together to prevent the purlin from rotating relative to the axis of the main shaft.

[0016] Beneficial effects of the present invention:

[0017] 1. First of all, functional integration and process integration are adopted. The functions of the purlin reinforcement and the purlin are integrated into one part. The integrated structural design can not only reduce the number of purlin-related parts, thereby improving installation efficiency, but also save unnecessary materials, simplify production processes and reduce production costs;

[0018] 2. Secondly, the lower part of the purlin is supported by the main shaft on multiple sides, so that the purlin contacts the main shaft contour on multiple sides, ensuring that the main shaft supports and fixes the purlin more stably, which is beneficial to improving the anti-overturning ability of the structure connection;

[0019] 3. Again, the purlin side angle design increases the overall rigidity of the purlin and improves its anti-deformation ability;

[0020] 4. In addition, the upper part of the purlin can be quickly installed between the component and the purlin by positioning bolts, positioning nuts or quick-release clamps in conjunction with pre-positioning convex bumps. Since the bolt installation direction is changed, the technical problem that when the U-bolt is installed from bottom to top, the threaded end of the U-bolt is located in the narrow gap between the components and is not large enough to accommodate the wrench operation can be overcome, thereby further improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of a photovoltaic mounting rack in the prior art;

[0023] Figure 2 It is a schematic diagram of the main structure of the purlin of the first embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the side structure of the purlin of the first embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of a top view structure of a purlin according to a first embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the purlin according to the first embodiment of the present invention;

[0027] Figure 6 It is a schematic diagram of the purlin installation structure of the first embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the main structure of the photovoltaic mounting rack of the present invention;

[0029] Figure 8 For the present invention Figure 7 The enlarged structural diagram at A in the middle;

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the photovoltaic mounting frame of the present invention;

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the purlin according to the second embodiment of the present invention;

[0032] Fig.11 It is a schematic diagram of the installation structure of the quick-release clamp in the prior art;

[0033] Fig.12 It is a schematic diagram of the installation structure of the quick-release clamp in the prior art;

[0034] Fig.13 For the present invention Fig. 9 Enlarged structural diagram at B in the middle.

[0035] Markings in the figure are: 1. purlin; 101. support plate; 102. side wall; 2. first component mounting hole; 3. lower positioning groove; 4. extension plate; 5. first positioning hole; 6. folded edge; 7. U-bolt; 8. U-bolt fastening nut; 9. purlin fixing piece; 10. upper positioning groove; 11. second positioning hole; 12. component; 13. second component mounting hole; 14. positioning bolt; 15. positioning nut; 16. main shaft; 17. limit hole; 18. quick-release fixture mounting groove; 19. pre-positioning bump. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0037] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0038] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the integrated short purlin comprises a purlin 1, the purlin 1 has a support plate 101 for supporting the bottom end of the assembly 12, and at least one side wall 102 connected to the support plate 101 at one end, the side wall 102 is provided with a lower positioning groove 3 matching the cross-sectional shape of the main shaft 16 at the other end thereof away from the support plate 101, the side wall 102 extends in the length direction of the main shaft 16 and forms a certain thickness, the purlin 1 is provided with a first auxiliary positioning structure for cooperating with the first locking structure to fix the purlin 1 to the main shaft 16, and the purlin 1 is provided with a second auxiliary positioning structure for cooperating with the second locking structure to fix the purlin 1 to the assembly 12;

[0039] The adoption of the above technical solution can improve the installation efficiency. Since the purlin 1 and the reinforcement are integrated with each other as a whole, the time for installing the purlin reinforcement can be saved during the installation process. When in use, it is only necessary to fit the lower positioning groove 3 at the lower end of the side wall 102 of the purlin 1 on the outer contour of the main shaft 16, and use the first locking structure in conjunction with the first auxiliary positioning structure to fix the purlin 1 and the main shaft 16. Then, by using the second locking structure in conjunction with the second auxiliary positioning structure, the purlin 1 can be fixed to the component 12, and the installation is completed, and disassembly is relatively convenient.

[0040] like Figure 5 and Figure 6 As shown, in this embodiment, an extension plate 4 for increasing the contact surface between the lower positioning groove 3 and the main shaft 16 is provided on the side wall 102 of the purlin 1, and the extension plate 4 has a plurality of extension plates 4 and is arranged in a central annular array about the lower positioning groove 3;

[0041] The above technical solution can improve the connection stability between the purlin 1 and the main shaft 16. By providing the extension plate 4, the extension plate 4 can fit the outer contour of the main shaft 16, ensuring that the main shaft 16 supports and fixes the purlin 1 more stably.

[0042] like Figure 5 As shown, in this embodiment, the side wall 102 of the purlin 1 has a folded angle along its length direction, so that a folded edge 6 is formed on the side wall 102;

[0043] The above technical solution can improve the anti-deformation ability of the purlin 1, and increase the overall rigidity of the purlin 1 through the angle design.

[0044] like Figure 5 and Figure 6 As shown, in this embodiment, the first auxiliary positioning structure is at least two first positioning holes 5 opened on the purlin 1 support plate 101; the first locking structure includes: a U-bolt 7 and a U-bolt fastening nut 8 matching the U-bolt 7, the U-bolt 7 matches the first positioning hole 5; a purlin fixing piece 9 with an upper positioning groove 10 matching the cross-sectional shape of the main shaft 16, the purlin fixing piece 9 has at least two second positioning holes 11 matching the U-bolt 7, and the purlin 1, the U-bolt 7 and the purlin fixing piece 9 together form a clamping space for clamping the main shaft 16;

[0045] The above technical solution can be used to install the purlin 1 on the main shaft 16. When in use, first fit the lower positioning groove 3 at the lower end of the purlin 1 on the outer contour of the main shaft 16, insert the U-bolt 7 from top to bottom and pass through the first positioning hole 5, then fit the side of the purlin fixing piece 9 with the upper positioning groove 10 on the main shaft 16, and ensure that the U-bolt 7 passes through the second positioning hole 11 on the surface of the purlin fixing piece 9, then use the U-bolt fastening nut 8 to screw on the U-bolt 7, but do not tighten it, so as to facilitate the subsequent fine-tuning of the position of the purlin 1 on the main shaft 16, and install the required purlins 1 on the main shaft 16 in batches according to this step.

[0046] like Figure 7 , Figure 8 and Fig. 9 as well as Fig.13 As shown, in this embodiment, the second auxiliary positioning structure is a first component mounting hole 2 opened on the purlin 1 support plate 101, the second locking structure includes a positioning bolt 14 and a positioning nut 15 matching the positioning bolt 14, the first component mounting hole 2 is used to match the positioning bolt 14, and the positioning bolt 14 matches the second component mounting hole 13 opened on the surface of the component 12;

[0047] The above technical solution can be used to install the components 12 in batches on the support plate 101 of the purlin 1. When in use, the purlin 1 that was initially fixed in the previous step is slid along the main shaft 16 to the desired position, ensuring that the second component mounting hole 13 on the surface of the component 12 is aligned with the first component mounting hole 2 on the support plate 101, and then the positioning bolt 14 is passed through the second component mounting hole 13 and the first component mounting hole 2 from top to bottom in sequence, and then the positioning bolt 14 is used to tighten the positioning bolt 14 from the bottom, and then tighten the positioning bolt 14 that is aligned with the component 12. The U-bolts 7 of the connected purlins 1, generally, one component 12 requires at least two purlins 1 to be stably supported, and each purlin 1 is provided with two sets of first component mounting holes 2, so that one purlin 1 can fix at most two components 12 at the same time, and the subsequent components 12 can be first mounted on the previous purlin 1 during installation, and then by sliding other purlins 1 on the same main shaft 16, another purlin 1 can cooperate with the previously fixed purlin 1 to install the next component 12, and the installation efficiency is high;

[0048] It should be noted that the U-bolt 7 is installed from top to bottom, that is, the threaded end of the U-bolt 7 faces downward. This installation method can avoid the failure to tighten the U-bolt 7 due to the small spacing between the components 12. Specifically, Figure 1As shown, when the U-bolt 7 is installed from bottom to top, the threaded end of the U-bolt 7 is located in the narrow gap between the components 12 and 12, which is not large enough to accommodate the operation of the wrench. Therefore, in order to facilitate the tightening of the U-bolt 7, the U-bolt 7 has to be locked before the component 12 is installed. Otherwise, the U-bolt 7 cannot be tightened after the component 12 is installed. However, once the U-bolt 7 is locked, it means that the purlin 1 can no longer slide along the main axis 16, making the subsequent batch installation steps difficult to achieve.

[0049] like Fig.10 , Fig.11 and Fig.12 As shown, in this embodiment, the second auxiliary positioning structure is a quick-release clamp installation groove 18 provided on the side wall 102 of the purlin 1, and the second locking structure is a quick-release clamp, and the quick-release clamp installation groove 18 is used to install the quick-release clamp;

[0050] The above-mentioned technical solution can more efficiently fix the component 12 and the purlin 1 to each other. The quick-release clamp mentioned here refers to the technical solution recorded in the Chinese invention patent application with publication number CN117040407A, entitled Clamp and Photovoltaic Mounting Rack. The quick-release clamp is provided with a clamping opening, and the front end of the lower wall of the clamping opening is provided with a lower limit tooth. Therefore, after the lower limit tooth is inserted into the quick-release clamp installation groove 18 of the purlin 1, the clamping opening will bite the upper end surface of the component 12 and the lower end surface of the purlin 1 support plate 101 at the same time. Under the knocking action of the worker, the quick-release clamp will move, and the lower limit tooth will be inserted into the limit hole 17 on the surface of the purlin 1 support plate 101, thereby locking the quick-release clamp to prevent it from falling off.

[0051] like Fig.10 As shown, in this embodiment, a pre-positioning convex bump 19 is provided on the support plate 101 of the purlin 1, and the pre-positioning convex bump 19 matches with the waist-shaped hole opened on the surface of the component 12;

[0052] The above technical solution can realize the pre-positioning between the component 12 and the purlin 1 support plate 101. When in use, the waist-shaped hole on the surface of the component 12 is aligned with the pre-positioning convex bump 19 on the purlin 1 support plate 101 after preliminary fixation and embedded, so that the component 12 and the purlin 1 can be pre-positioned, which is conducive to the subsequent fixing using the positioning bolts 14, positioning nuts 15 or quick-release clamps.

[0053] like Figure 5 and Fig.10 As shown, in this embodiment, the purlin 1 has two side walls 102, the two side walls 102 are symmetrically arranged about the support plate 101, and the side walls 102 and the support plate 101 are integrally designed;

[0054] The above technical solution can ensure that the connection between the purlin 1 and the main shaft 16 is more stable and save materials. When only one side wall 102 is set, in order to ensure the stability of the connection between the purlin 1 and the main shaft 16, the thickness of the side wall 102 needs to be set very large, which is not only heavy but also wastes materials.

[0055] like Fig. 9 As shown, the present invention further provides a photovoltaic mounting frame, comprising a component 12, a main shaft 16 and an integrated short purlin, wherein the main shaft 16 is a multi-sided column, and correspondingly, the lower positioning groove 3 is a multi-sided groove matching the column edge, and the multi-sided groove and the column edge are fitted together to prevent the purlin 1 from rotating relative to the axis of the main shaft 16;

[0056] The above technical solution can facilitate the installation of photovoltaic panels. The installation method has been mentioned above and will not be repeated here.

[0057] Working principle: When in use, first fit the lower positioning groove 3 at the lower end of the purlin 1 onto the outer contour of the main shaft 16, insert the U-bolt 7 from top to bottom and pass through the first positioning hole 5, then fit the side of the purlin fixing piece 9 with the upper positioning groove 10 onto the main shaft 16, and ensure that the U-bolt 7 passes through the second positioning hole 11 on the surface of the purlin fixing piece 9, then use the U-bolt fastening nut 8 to screw on the U-bolt 7, but do not tighten it, so as to facilitate the subsequent fine-tuning of the position of the purlin 1 on the main shaft 16, and install the required purlins 1 on the main shaft 16 in batches according to this step;

[0058] Then align the waist-shaped hole on the surface of the component 12 with the pre-positioning convex bump 19 on the support plate 101 of the purlin 1 after preliminary fixation, so that the component 12 and the purlin 1 can be pre-positioned, and the purlin 1 preliminarily fixed in the previous step is slid along the main axis 16 to the desired position, ensuring that the second component mounting hole 13 on the surface of the component 12 is aligned and overlapped with the first component mounting hole 2 on the support plate 101, and then the positioning bolt 14 is passed through the second component mounting hole 13 and the first component mounting hole 2 from top to bottom in sequence, and then the positioning bolt 14 is used to tighten the positioning bolt 14 from the bottom , and then tighten the U-bolt 7 of the purlin 1 connected to the component 12. Generally, one component 12 requires at least two purlins 1 to be stably supported. Each purlin 1 is provided with two groups of first component mounting holes 2, so that one purlin 1 can fix up to two components 12 at the same time. The subsequent components 12 can be mounted on the previous purlin 1 during installation, and then by sliding other purlins 1 on the same main shaft 16, another purlin 1 can cooperate with the previously fixed purlin 1 to install the next component 12, and the installation efficiency is high.

[0059] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0060] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. One-piece short purlin, characterized in that: The invention comprises a purlin (1), wherein the purlin (1) has a support plate (101) for supporting the bottom end of an assembly (12), and at least one side wall (102) connected to the support plate (101) at one end, wherein the side wall (102) is provided with a lower positioning groove (3) matching the cross-sectional shape of a main shaft (16) at the other end thereof away from the support plate (101), wherein the side wall (102) extends in the length direction of the main shaft (16) and forms a certain thickness, wherein the purlin (1) is provided with a first auxiliary positioning structure for cooperating with a first locking structure to fix the purlin (1) to the main shaft (16), and wherein the purlin (1) is provided with a second auxiliary positioning structure for cooperating with a second locking structure to fix the purlin (1) to the assembly (12).

2. The integrated short purlin according to claim 1, characterized in that: An extension plate (4) for increasing the contact surface between the lower positioning groove (3) and the main shaft (16) is provided on the side wall (102) of the purlin (1), and the extension plates (4) have a plurality of extension plates (4) and are arranged in a central annular array about the lower positioning groove (3).

3. The integrated short purlin according to claim 1, characterized in that: The side wall (102) of the purlin (1) has a folded angle along its length direction, thereby forming a folded edge (6) on the side wall (102).

4. The integrated short purlin according to claim 1, characterized in that: The first auxiliary positioning structure is at least two first positioning holes (5) opened on the purlin (1) support plate (101).

5. The integrated short purlin according to claim 4, characterized in that: The first locking structure comprises: A U-shaped bolt (7) and a U-shaped bolt fastening nut (8) matching the U-shaped bolt (7), wherein the U-shaped bolt (7) matches the first positioning hole (5); A purlin fixing member (9) is provided with an upper positioning groove (10) matching the cross-sectional shape of a main shaft (16), the purlin fixing member (9) is provided with at least two second positioning holes (11) matching the U-shaped bolts (7), and the purlin (1), the U-shaped bolts (7) and the purlin fixing member (9) together form a clamping space for clamping the main shaft (16).

6. The integrated short purlin according to claim 1, characterized in that: The second auxiliary positioning structure is a first component mounting hole (2) opened on the purlin (1) support plate (101), the second locking structure comprises a positioning bolt (14) and a positioning nut (15) matching the positioning bolt (14), the first component mounting hole (2) is used to cooperate with the positioning bolt (14), and the positioning bolt (14) cooperates with the second component mounting hole (13) opened on the surface of the component (12).

7. The integrated short purlin according to claim 1, characterized in that: The second auxiliary positioning structure is a quick-release clamp installation groove (18) provided on the side wall (102) of the purlin (1), the second locking structure is a quick-release clamp, and the quick-release clamp installation groove (18) is used to install the quick-release clamp.

8. The integrated short purlin according to claim 7, characterized in that: A pre-positioning convex bump (19) is provided on the support plate (101) of the purlin (1), and the pre-positioning convex bump (19) matches with a waist-shaped hole opened on the surface of the component (12).

9. The integrated short purlin according to claim 1, characterized in that: The purlin (1) has two side walls (102), the two side walls (102) are symmetrically arranged with respect to the support plate (101), and the side walls (102) and the support plate (101) are designed to be integrated in one piece.

10. A photovoltaic mounting rack, characterized in that: The invention comprises a component (12) and a main shaft (16) and an integrated short purlin as claimed in any one of claims 1 to 9, wherein the main shaft (16) is a multi-sided column, and correspondingly, the lower positioning groove (3) is a multi-sided groove matching the edge of the column, and the multi-sided groove and the edge of the column are fitted together to prevent the purlin (1) from rotating relative to the axis of the main shaft (16).

Images