A photovoltaic racking connection assembly

Abstract

The utility model provides a kind of photovoltaic support connecting assembly, it is related to photovoltaic support technical field, comprising: inclined beam, the inclined beam bottom is fixedly installed with universal joint by bolt fastener, and the two ear plates between universal joint are rotatably installed with support column and are locked by bolt fastener, the utility model is adjusted after to inclined beam angle, it can be by the sliding plug-in cooperation of limiting sliding slot and limiting plug block, the position of limiting plug block is adjusted, so that limiting insertion hole is aligned with the outer end surface of support column, angle displacement monitoring rod is inserted into the corresponding two limiting insertion holes of before and after subsequently, ensure that angle displacement monitoring rod and the outer end surface of support column are closely attached, form the monitoring structure that whether the angle of support column has deviation, solve the problem that the initial deviation of photovoltaic support inclined beam and column is difficult to identify by naked eye after adjusting angle by universal joint and bolt connection, need professional equipment detection, increase fault location complexity and time cost.

Description

Technical Field

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

[0002] As the core support structure of a photovoltaic power generation system, the photovoltaic bracket needs to stably support the weight of the photovoltaic modules and, depending on the latitude, sunshine conditions, and installation scenario (such as rooftop, ground, hillside, etc.), adjust its own angle to achieve optimal light intake for the photovoltaic modules in order to ensure power generation efficiency.

[0003] In current mainstream photovoltaic (PV) support components, the angle between the inclined beam and the support column is mostly adjusted using rotating connectors such as universal joints. After adjustment, it is then locked in place by bolts. However, PV supports are usually exposed to complex outdoor environments and are subjected to natural external forces such as strong winds, heavy rain, blizzards, and earthquakes over a long period of time. At the same time, ground settlement, thermal expansion and contraction of materials due to temperature changes, and loosening of bolts under long-term vibration can all cause the connection angle between the universal joint and the support column to shift. Once the angle of the inclined beam deviates from the preset optimal light-receiving angle, it will directly reduce the amount of solar radiation received by the PV module. In some cases, the initial angle shift is small and difficult to identify by visual observation alone. Due to the lack of intuitive judgment criteria, it is often necessary to use professional equipment for detection, which increases the complexity and time cost of fault location. Utility Model Content

[0004] This utility model relates to a photovoltaic support connection component, which solves the problem that after the angle of the photovoltaic support inclined beam and column is adjusted by universal joint and bolt connection, the connection angle is easily offset by external forces in the complex outdoor environment, foundation settlement, thermal expansion and contraction of materials and loose bolts. Moreover, the initial offset is difficult to identify with the naked eye and requires professional equipment for detection, which increases the complexity and time cost of fault location and also reduces the amount of solar radiation received by the photovoltaic module.

[0005] This utility model provides a photovoltaic bracket connection assembly, specifically including: an inclined beam, a universal joint fixedly installed at the bottom of the inclined beam by bolts and fasteners, a bracket column rotatably installed between the two lugs of the universal joint and locked by bolts and fasteners, an extension block fixedly installed on both the left and right sides of the two lugs of the universal joint, the side end face of the extension block being coplanar with the inclined surface of the lug; a limiting groove is formed on the side end face of the extension block, the limiting groove having an isosceles trapezoidal groove structure, a limiting plug is slidably installed inside the limiting groove, the limiting plug having an isosceles trapezoidal block structure, a limiting block is installed on the top surface of the limiting plug, and a limiting insertion hole is formed on both the left and right end faces of the limiting block.

[0006] Furthermore, the inner circumferential surface of the limiting insertion hole is tangent to the inclined surface of the ear plate.

[0007] Furthermore, each of the top surfaces of the limiting insert has a threaded locking through hole that penetrates its bottom surface, and a locking bolt is installed in the threaded locking through hole; when the locking bolt is locked along the threaded locking through hole, the bottom end of the locking bolt stud is in close contact with the bottom surface of the inner end of the limiting slide groove.

[0008] Furthermore, an angle displacement monitoring rod is inserted into the two corresponding limiting holes at the front and rear positions. The diameter of the angle displacement monitoring rod is consistent with the diameter of the limiting hole, and the angle displacement monitoring rod is made of a highly brittle plastic material.

[0009] This utility model provides a photovoltaic support connection component, which has the following advantages:

[0010] After the angle of the inclined beam is adjusted, the position of the limiting block can be adjusted by sliding the limiting groove and the limiting block to align the limiting hole with the outer end face of the support column. Then, the angle displacement monitoring rod is inserted into the two corresponding limiting holes to ensure that the angle displacement monitoring rod is in close contact with the outer end face of the support column, thus forming a monitoring structure to detect whether the angle of the support column has shifted.

[0011] This utility model's angle displacement monitoring rod is made of highly brittle plastic. When the photovoltaic support is operating normally and the universal joint is securely connected to the support column, the monitoring rod remains intact, directly reflecting the stability of the support angle. When the support is affected by factors such as strong winds, earthquakes, foundation settlement, or loose bolts, and the universal joint shifts at an angle to the support column, the radial pressure exerted by the support column on the monitoring rod will cause it to break. During daily inspections or periodic maintenance, staff can quickly determine whether there is an angle displacement problem in the support by simply observing whether the monitoring rod is broken, without the need for complex testing equipment. This significantly shortens troubleshooting time, lowers the technical threshold and cost of maintenance, and ensures efficient maintenance work. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0013] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0014] In the attached diagram:

[0015] Figure 1 A schematic diagram of the isometric structure of this utility model is shown;

[0016] Figure 2 This utility model illustrates Figure 1 A magnified view of the structure at point A in the middle;

[0017] Figure 3 This utility model illustrates Figure 2 A schematic diagram of the structure of the middle extension block, angular displacement monitoring rod and limiting plug in the disassembled state;

[0018] Figure 4 This invention presents a structural schematic diagram of the inclined beam, universal joint, and support column in their disassembled states.

[0019] List of reference numerals

[0020] 1. Inclined beam; 2. Universal joint; 3. Support column; 4. Extension block; 401. Limiting groove; 5. Angle displacement monitoring rod; 6. Limiting block; 601. Limiting insert; 602. Locking bolt; 603. Limiting insertion hole; 604. Threaded locking through hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example: Please refer to Figures 1 to 4 :

[0023] This utility model proposes a photovoltaic support connection assembly, including: a inclined beam 1, a universal joint 2 fixedly installed at the bottom of the inclined beam 1 by bolts and fasteners, a support column 3 rotatably installed between the two ear plates of the universal joint 2 and locked by bolts and fasteners, an extension block 4 fixedly installed on both the left and right sides of the two ear plates of the universal joint 2, the side end face of the extension block 4 being coplanar with the inclined surface of the ear plate; a limiting groove 401 is formed on the side end face of the extension block 4, the limiting groove 401 having an isosceles trapezoidal groove structure, a limiting insert 601 slidably installed inside the limiting groove 401, the limiting insert 601 having an isosceles trapezoidal block structure, a limiting block 6 installed on the top surface of the limiting insert 601, and the left and right end faces of the limiting block 6... A limiting insertion hole 603 is provided in common; the inner circumferential surface of the limiting insertion hole 603 is tangent to the inclined surface of the ear plate; a threaded locking through hole 604 is provided on both sides of the top surface of the limiting insertion block 601, and a locking bolt 602 is installed in the threaded locking through hole 604; when the locking bolt 602 is locked along the threaded locking through hole 604, the bottom end of the stud of the locking bolt 602 is in close contact with the bottom surface of the inner end of the limiting slide groove 401; an angle displacement monitoring rod 5 is inserted into the two limiting insertion holes 603 corresponding to the front and rear positions. The diameter of the angle displacement monitoring rod 5 is the same as the diameter of the limiting insertion hole 603, and the angle displacement monitoring rod 5 is made of a highly brittle plastic material.

[0024] The working principle of this embodiment:

[0025] During the installation of the photovoltaic bracket, the tilt angle of the inclined beam 1 (which carries the photovoltaic panel) is first adjusted according to the on-site lighting conditions and installation requirements through the rotating connection structure between the universal joint 2 and the bracket column 3. During the adjustment process, the two lugs of the universal joint 2 and the bracket column 3 maintain a rotating fit until the inclined beam 1 reaches the preset optimal tilt angle. After the angle is adjusted to the correct position, the connection between the universal joint 2 and the bracket column 3 is locked with bolt fasteners to achieve initial fixation of the two and prevent unexpected rotation in subsequent operations.

[0026] After the angle of the inclined beam 1 is adjusted, slide the limiting block 601 along the limiting groove 401 on the extension block 4 (because both the limiting groove 401 and the limiting block 601 are isosceles trapezoidal structures, they can effectively prevent lateral displacement during sliding and ensure motion stability). Adjust the position of the limiting block 601 so that the limiting hole 603 installed on the limiting block 6 is aligned with the outer end face of the support column 3. Then insert the angle displacement monitoring rod 5 into the two corresponding limiting holes 603 at the front and rear. Within 3, ensure that the angle displacement monitoring rod 5 is tightly fitted to the outer end face of the support column 3; then, screw in the locking bolt 602 through the threaded locking through holes 604 on both sides of the top surface of the limiting plug 601. When the bottom end of the stud of the locking bolt 602 is tightly fitted to the bottom surface of the inner end of the limiting slide groove 401, stop screwing. At this time, the limiting plug 601 is firmly fixed in the limiting slide groove 401, and the position of the angle displacement monitoring rod 5 is also locked, forming an auxiliary limiting for the support column 3.

[0027] During normal operation of the photovoltaic support system, if the connection between the universal joint 2 and the support column 3 remains secure, and the angle displacement monitoring rod 5 remains tightly fitted to the support column 3, and due to its brittle plastic material, it remains intact without external pressure, indicating that the support angle is stable and requires no maintenance. However, when affected by factors such as strong winds, earthquakes, foundation settlement, or loose bolts, causing an angular shift between the universal joint 2 and the support column 3, the support column 3 will exert radial pressure on the tightly fitted angle displacement monitoring rod 5. Because the angle displacement monitoring rod 5 is made of brittle plastic, its bending and compression resistance is weak, and it may break under pressure. During daily inspections or periodic maintenance, staff can quickly determine whether there is an angular shift problem by observing the state of the angle displacement monitoring rod 5. If the angle displacement monitoring rod 5 is found to be broken, it indicates that the connection angle between the universal joint 2 and the support column 3 has changed, and the bolts need to be tightened or the support angle recalibrated in a timely manner to ensure that the photovoltaic support system is always at the optimal working angle and to guarantee the power generation efficiency of the photovoltaic modules.

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