Photovoltaic truss testing device

Abstract

The utility model relates to the technical field of photovoltaic support detection, in particular to a photovoltaic truss testing device, which comprises a detection box body internally provided with a containing cavity, a plurality of channels used for being communicated with the containing cavity are arranged outside the detection box body, the channels and the containing cavity can be combined with each other, and the channels are communicated with the containing cavity. Therefore, a plurality of detection stations corresponding to the to-be-detected trusses of different specifications are formed. According to the utility model, the whole positioning mechanism and the force application mechanism are wrapped in the detection box body, the test force is applied to the stress position of the truss to be detected through the force application mechanism, and all the test forces are mutually balanced in the whole detection box body and are converted into the internal force of the detection box body, so that a foundation does not need to be arranged, and the detection box body can be randomly placed; the testing device can be moved at any time, transportation management is facilitated, meanwhile, different detection stations can be suitable for testing trusses of different specifications, subsequent repeated use can be achieved, and efficient detection is achieved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support testing technology, and in particular to a photovoltaic truss testing device. Background Technology

[0002] Truss connection nodes require fixed component load cables. Large-span component load cables connect batches of photovoltaic modules. The load of the photovoltaic modules is transferred to the truss connection nodes through the component load cables, and then transferred to the truss main body through the connection nodes. Therefore, connection nodes are often the first parts of the truss to be damaged. Testing the connection nodes can help determine whether the manufacturing process meets the requirements that the truss can still be used normally after the load is added, thereby helping to find deficiencies in the process and improve the process. Therefore, truss connection node testing is an essential step.

[0003] Current testing solutions typically involve setting up testing facilities at the project site or factory. Factory testing requires a fixed foundation to transfer the test force to the ground, and the pouring of the foundation requires a special open space. When the span of the test truss is inconsistent, the foundation needs to be rebuilt, resulting in low reuse rate, long testing cycle, and cumbersome operation, which is not conducive to improving testing efficiency. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a photovoltaic truss testing device to solve the technical problem of low detection efficiency when testing trusses in the prior art.

[0005] To achieve the above objectives, this utility model provides a photovoltaic truss testing device, comprising:

[0006] The test chamber has an internal accommodating chamber, and the outside of the test chamber has several channels for connecting the accommodating chamber. The channels and the accommodating chamber can be combined to form multiple test stations corresponding to trusses of different specifications. The trusses to be tested can be placed into the corresponding test stations for testing through the channels.

[0007] The positioning mechanism installed inside the testing chamber is used to fix the truss to be tested at the corresponding testing station.

[0008] The force-applying mechanism installed inside the testing chamber is used to apply loads to the connection nodes on the surface of the truss to be tested after positioning.

[0009] As a preferred embodiment of this utility model, the detection chamber includes:

[0010] Several first pillars enclose each other, with adjacent first pillars arranged in parallel and aligned at their ends, and gaps between adjacent first pillars.

[0011] Second columns are spaced apart along the length of the first column to connect adjacent first columns. The second columns divide the gap into several through slots, thereby forming a frame with open ends and several through slots on the surface through the first and second columns. The channel is a combination of through slots and open ends.

[0012] As a preferred embodiment of this utility model, the first column and the second column are square tubes, and there are four first columns, thereby forming a frame with a rectangular cross-section.

[0013] As a preferred embodiment of the present invention, the positioning mechanism includes a plurality of first flanges disposed on the inner side of the second column, and a connecting member for connecting the first flanges and the flange of the truss to be tested is provided between the first flanges and the flange of the truss to be tested.

[0014] As a preferred embodiment of the present invention, the positioning mechanism further includes a first support column with second flanges at both ends, wherein one of the second flanges is connected to the first flange via a connector, and the other second flange is connected to the flange of the truss to be tested via a connector.

[0015] As a preferred embodiment of this utility model, a first reinforcing rib is provided between the first flange and the second column, and a second reinforcing rib is provided between the second flange and the first support column.

[0016] As a preferred embodiment of this utility model, the force-applying mechanism includes a force-applying device.

[0017] As a preferred embodiment of this utility model, the force-applying mechanism further includes:

[0018] Second support column;

[0019] A third flange is provided at one end of the second support column, and the third flange is connected to the first flange by a connector;

[0020] A mounting plate is provided at the other end of the second support column, the mounting plate being used to fix the force-applying device.

[0021] As a preferred embodiment of this utility model, a third reinforcing rib is provided between the second support column and the third flange.

[0022] As a preferred embodiment of this utility model, the force-applying device is a jack or a hydraulic cylinder.

[0023] The beneficial effects of this utility model are as follows: This utility model encloses the entire positioning mechanism and force application mechanism within a testing box. The test force is applied to the stress position of the truss to be tested through the force application mechanism. All the test forces are balanced within the entire testing box and transformed into internal forces of the testing box. Therefore, no foundation is required, and the device can be placed arbitrarily. The testing device can also be moved at any time, facilitating transportation and management. At the same time, different testing stations can be used to test trusses of different specifications, allowing for repeated use and achieving efficient testing. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention;

[0026] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0027] Figure 3 This is a three-dimensional structural diagram of the first column, the second column, the first flange, and the force-applying device of this utility model;

[0028] Figure 4 This is a three-dimensional structural diagram of the first column, the second column, the first flange, and the force-applying device of this utility model;

[0029] Figure 5 This is a three-dimensional structural diagram of the first support column and the second flange of this utility model;

[0030] Figure 6 This is a three-dimensional structural diagram of the second support column and the third flange of this utility model.

[0031] The following are marked in the diagram: 1. First column; 2. Second column; 3. First flange; 4. First reinforcing rib; 5. First support column; 6. Second flange; 7. Second reinforcing rib; 8. Side truss; 9. Fifth flange; 10. Mounting hole; 11. Fastening bolt; 12. Fastening nut; 13. Washer; 14. Second support column; 15. Third flange; 16. Third reinforcing rib; 17. Mounting plate; 18. Force application device; 19. Reinforcing member; 20. Middle truss; 21. Fourth flange. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0033] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] like Figure 1 As shown, a photovoltaic truss testing device includes: a testing box with an internal accommodating chamber, and several channels on the outside of the testing box for connecting the accommodating chamber. The channels and the accommodating chamber can be combined to form multiple testing stations corresponding to trusses of different specifications. The trusses to be tested can be placed into the corresponding testing stations for testing through the channels; a positioning mechanism installed in the testing box for fixing the trusses to be tested in the corresponding testing stations; and a force-applying mechanism installed in the testing box for applying loads to the connection nodes on the surface of the positioned trusses to be tested.

[0035] The above technical solution can improve the efficiency of truss testing. By setting up a testing box, the entire positioning mechanism and force application mechanism are enclosed inside and connected to the testing box. The test force is applied to the stress position of the truss to be tested through the force application mechanism, which is the connection node on the surface of the truss to be tested. All the test forces are balanced within the entire testing box and converted into the internal force of the testing box. Therefore, no foundation is required, and it can be placed at will. The testing device as a whole can be moved at any time, which is convenient for transportation and management. At the same time, different testing stations can be used to test trusses of different specifications, so it can be reused in the future, achieving efficient testing. Since the test force is converted into the internal force inside the testing box, even if a connection node of the truss to be tested is suddenly damaged, the internal force of the entire device is reduced, which plays a protective role and has a certain degree of safety.

[0036] like Figure 1 , Figure 3 and Figure 4As shown, in this embodiment, the detection box includes: a plurality of mutually enclosing first columns 1, adjacent first columns 1 are arranged in parallel and aligned at their ends, and there are gaps between adjacent first columns 1; second columns 2 are spaced apart along the length of the first columns 1 at the gaps to connect adjacent first columns 1, the second columns 2 divide the gaps into a plurality of through slots, thereby forming a frame with open ends and a plurality of through slots on the surface through the first columns 1 and the second columns 2, the channels being through slots and open ends; the first columns 1 and the second columns 2 are square tubes, and there are four first columns 1, thereby forming a frame with a rectangular cross section;

[0037] The above technical solution facilitates the construction of the testing box. Using square tubes as the base material for the testing box is advantageous because square tubes are inexpensive and readily available locally. Furthermore, square tubes are lightweight due to their hollow structure, making them easy to move and transport. Additionally, the rectangular frame structure allows the testing box to be placed in the desired location as needed.

[0038] like Figure 4 As shown, in this embodiment, the positioning mechanism includes a plurality of first flanges 3 disposed on the inner side of the second column 2, and a connecting member for connecting the first flanges 3 and the flange of the truss to be tested is provided between the first flanges 3 and the flange of the truss to be tested.

[0039] The above technical solution enables the inspection of the middle truss 20. The truss mainly includes two types: one is the side truss 8, which is set at the outermost ends of the photovoltaic support to fix the entire module fixing cable; the other is the middle truss 20, which is set between the side trusses 8 to support the module fixing cable from the middle. The two types of trusses have certain structural differences. The side truss 8 is generally a right-angled triangular frame structure, while the middle truss 20 is generally an isosceles triangular frame structure. The bottom of the middle truss 20 is generally connected to the supporting column through the fourth flange 21. Therefore, when it is necessary to position the middle truss 20, the fourth flange 21 at the bottom of the middle truss 20 needs to be connected to the first flange 3 on the second column 2 through a connector, so that the middle truss 20 can be positioned.

[0040] like Figure 1 , Figure 3 and Figure 5 As shown, in this embodiment, the positioning mechanism further includes a first support column 5 with second flanges 6 at both ends, one of the second flanges 6 being connected to the first flange 3 via a connector, and the other second flange 6 being connected to the flange of the truss to be tested via a connector.

[0041] The above technical solution can be used to position the side truss 8. Unlike the middle truss 20, the side truss 8 generally has two fifth flanges 9 at the bottom and two fifth flanges 9 on one side. The two sets of fifth flanges 9 are perpendicular to each other at 90 degrees. Therefore, it is necessary to fix four fifth flanges 9 at the same time to achieve sufficient fixation of the side truss 8. By setting the first support column 5 to connect the second flange 6, the second flange 6 can fit with the fifth flange 9 on one side of the side truss 8, so as to connect the first flange 3, the second flange 6 and the fifth flange 9 at the bottom and side of the side truss 8 respectively with the connecting parts.

[0042] like Figure 2 and Figure 5 As shown, in this embodiment, a first reinforcing rib 4 is provided between the first flange 3 and the second column 2, and a second reinforcing rib 7 is provided between the second flange 6 and the first support column 5.

[0043] The above technical solution can improve the connection stability of the flange.

[0044] like Figure 3 , Figure 4 and Figure 6 As shown, in this embodiment, the force-applying mechanism includes a force-applying device 18; the force-applying mechanism also includes: a second support column 14; a third flange 15 disposed at one end of the second support column 14, the third flange 15 being connected to the first flange 3 via a connector; a mounting plate 17 disposed at the other end of the second support column 14, the mounting plate 17 being used to fix the force-applying device 18; a third reinforcing rib 16 is provided between the second support column 14 and the third flange 15;

[0045] The above technical solution can apply pressure to the connection nodes of the truss, thereby judging whether the truss is qualified by observing whether the connection nodes are deformed or the degree of deformation. The force application device 18 can be a jack or hydraulic cylinder or other equipment that can apply pressure.

[0046] like Figure 2 As shown, in this embodiment, the connector includes a fastening bolt 11, a fastening nut 12 that matches the fastening bolt 11, and a washer 13. The fastening bolt 11 is used to insert into the mounting holes 10 of all the flanges mentioned above to achieve installation.

[0047] The above technical solution enables flanges to be installed together or disassembled.

[0048] Working principle: Taking the side truss 8 as an example, during use, the side truss 8 is placed into the accommodating space from one open end of the testing box. Since the side truss 8 generally has two fifth flanges 9 at the bottom and two fifth flanges 9 on one side, and the two sets of fifth flanges 9 are perpendicular to each other at 90 degrees, it is necessary to fix four fifth flanges 9 at the same time to achieve sufficient fixation of the side truss 8. By setting the first support column 5 to connect the second flange 6, the second flange 6 can fit with the fifth flange 9 on one side of the side truss 8. In order to cooperate with the connectors, the first flange 3, the second flange 6 and the fifth flanges 9 at the bottom and side of the side truss 8 are connected respectively. The connectors include fastening bolts 11, fastening nuts 12 that match the fastening bolts 11 and washers 13. By activating the jack as the force application device 18, pressure can be applied to the connection nodes of the side truss 8 to simulate the load on site. By observing whether the connection nodes are deformed or the degree of deformation, the truss can be judged to be qualified.

[0049] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can 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 the details for the sake of brevity.

[0050] This utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A photovoltaic truss testing device, characterized in that, include: The test chamber has an internal accommodating chamber, and the outside of the test chamber has several channels for connecting the accommodating chamber. The channels and the accommodating chamber can be combined to form multiple test stations corresponding to trusses of different specifications. The trusses to be tested can be placed into the corresponding test stations for testing through the channels. The positioning mechanism installed inside the testing chamber is used to fix the truss to be tested at the corresponding testing station. The force-applying mechanism installed inside the testing chamber is used to apply loads to the connection nodes on the surface of the truss to be tested after positioning.

2. The photovoltaic truss testing device according to claim 1, characterized in that, The detection chamber includes: Several first columns (1) that enclose each other, with adjacent first columns (1) arranged in parallel and aligned at their ends, and gaps between adjacent first columns (1); Second columns (2) are spaced apart along the length of the first column (1) to connect adjacent first columns (1). The second columns (2) divide the gap into several through slots, thereby forming a frame with open ends and several through slots on the surface through the first column (1) and the second column (2). The channel is a through slot and an open end.

3. The photovoltaic truss testing device according to claim 2, characterized in that, The first column (1) and the second column (2) are square tubes, and there are four first columns (1), thus forming a frame with a rectangular cross section.

4. The photovoltaic truss testing device according to claim 2, characterized in that, The positioning mechanism includes a plurality of first flanges (3) disposed on the inner side of the second column (2), and a connecting piece for connecting the first flanges (3) and the flange of the truss to be tested is provided between the first flanges (3) and the flange of the truss to be tested.

5. The photovoltaic truss testing device according to claim 4, characterized in that, The positioning mechanism also includes a first support column (5) with second flanges (6) at both ends, one of the second flanges (6) being connected to the first flange (3) via a connector, and the other second flange (6) being connected to the flange of the truss to be tested via a connector.

6. The photovoltaic truss testing device according to claim 5, characterized in that, A first reinforcing rib (4) is provided between the first flange (3) and the second column (2), and a second reinforcing rib (7) is provided between the second flange (6) and the first support column (5).

7. The photovoltaic truss testing device according to claim 4, characterized in that, The force-applying mechanism includes a force-applying device (18).

8. The photovoltaic truss testing device according to claim 7, characterized in that, The force-applying mechanism also includes: Second support column (14); A third flange (15) is provided at one end of the second support column (14), and the third flange (15) is connected to the first flange (3) by a connector; A mounting plate (17) is provided at the other end of the second support column (14), the mounting plate (17) being used to fix the force application device (18).

9. The photovoltaic truss testing device according to claim 8, characterized in that, A third reinforcing rib (16) is provided between the second support column (14) and the third flange (15).

10. The photovoltaic truss testing device according to any one of claims 7-9, characterized in that, The force-applying device (18) is a jack or a hydraulic cylinder.

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