Photovoltaic support cable force monitor

Abstract

The utility model relates to a photovoltaic support cable force monitor, and aims to solve the problems of vibration interference and retraction of a conventional monitor in an outdoor complex environment. The monitor comprises a hinge rod, an L-shaped circular tube, a supporting rod, a shock absorber, a multi-stage connecting rod, an air cylinder and a monitor main body. One end of the hinge rod is hinged with the photovoltaic bracket, and the other end of the hinge rod is connected with the L-shaped circular tube; one end of the L-shaped circular tube is arranged in the rod end knuckle bearing, and the other end of the L-shaped circular tube is hinged to the supporting rod; the multi-stage connecting rod is linked with the hinge rod, the L-shaped round pipe and the air cylinder piston rod, and structure contraction and expansion are achieved. The sensor module is arranged in the monitor main body, cable force is converted into electric signals, the electric signals are transmitted to the calculator through the signal processing circuit and the wireless transmission module for spectral analysis, and a cable force value is calculated. The device is mainly used for monitoring the cable force of the photovoltaic support in real time and improving the structural safety.

Description

Technical Field

[0001] This application relates to the photovoltaic field, specifically a photovoltaic support cable tension monitoring instrument. Background Technology

[0002] With the rapid development of the photovoltaic power generation industry, photovoltaic (PV) supports play a crucial supporting role in PV power plants. To ensure the stability and safety of PV supports, real-time monitoring of cable tension (i.e., the tensile force on structures such as cables) is essential. However, in complex outdoor environments, existing PV support cable tension monitoring instruments often face vibration interference, easily leading to inaccurate monitoring data. Furthermore, when monitoring is not required, the lack of effective retraction protection makes the instruments susceptible to damage, affecting their lifespan and reliability. Utility Model Content

[0003] The purpose of this utility model is to provide a photovoltaic support cable tension monitoring device that can effectively solve the problems of vibration interference and retraction of existing monitoring devices in complex outdoor environments. To achieve the above objective, this application provides the following technical solution: A photovoltaic support cable tension monitoring device, comprising:

[0004] The hinge rod has rod end joint bearings at both ends. One end is hinged to the photovoltaic bracket, and the other end is provided with an L-shaped round tube. The side wall of the hinge rod is integrally formed with a hinge block, and the hinge block is provided with a hinge hole.

[0005] One end of the L-shaped tube is disposed in the rod end joint bearing, and the other end is hinged to a support rod. A shock absorber is hinged to the side wall of the support rod, and the other end of the shock absorber is hinged to the outer side wall of the bend of the L-shaped tube. A first connecting rod is hinged to the side wall of the hinge end of the L-shaped tube, and a second connecting rod is hinged to the other end of the first connecting rod. The other end of the second connecting rod is hinged to the hinge block.

[0006] A cylinder, wherein the cylinder body is fixed to the photovoltaic bracket by a fixed bracket, and the end of its piston rod is hinged to the middle of the hinge rod;

[0007] The third link has one end hinged to the hinge rod, and its hinge axis is coaxial with the hinge axis of the piston rod. The other end is hinged to the fourth link, and the other end of the fourth link is hinged to the middle of the second link. When the piston rod extends or retracts, it drives the hinge rod to swing. Under the linkage of multiple links, the hinge end of the L-shaped tube rotates to a position parallel to the hinge rod, thereby realizing the contraction and expansion of the overall structure.

[0008] The main body of the monitoring instrument contains a sensor module for detecting cable force. This sensor module can convert cable force into a corresponding electrical signal and transmit it to the signal processing circuit for processing and analysis. Finally, the information is transmitted to the calculator by the wireless transmission module, and the signal is analyzed by the analysis device to calculate the value of cable force.

[0009] In this preferred embodiment, the shock absorber is a spring shock absorber, which can effectively absorb and buffer external vibrations, protecting the main body of the monitoring instrument and other components from vibration damage.

[0010] In a preferred embodiment of this technical solution, the cylinder is electrically controlled, and its extension and retraction movements are controlled by a controller according to a preset program or external instructions to achieve automated operation of the monitoring instrument.

[0011] In a preferred embodiment, this technical solution further includes a limiting rod, which is disposed on the hinge rod and is L-shaped, with one end located below the hinge axis of the first connecting rod and the second connecting rod.

[0012] In a preferred embodiment of this technical solution, the second connecting rod and the fourth connecting rod are not collinear.

[0013] In a preferred embodiment, this technical solution also includes a universal joint, which is disposed at the connection between the support rod and the main body of the monitoring instrument.

[0014] In a preferred embodiment, this technical solution also includes a position sensor, which is mounted on the piston rod of the cylinder. The position sensor can detect the extension and retraction position of the piston rod in real time and feed the position signal back to the controller so that the controller can control the extension and retraction of the cylinder according to the position signal.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] This application provides a photovoltaic support cable tension monitoring device, which includes a hinged rod, an L-shaped tube, a support rod, a shock absorber, multiple connecting rods, a cylinder, and a monitoring device body. The hinged rod is driven by the cylinder to swing, realizing the contraction and expansion of the overall structure. The shock absorber absorbs external vibrations, effectively solving the problems of poor shock resistance, lack of retraction protection mechanism, and insufficient flexibility of existing monitoring devices. It has the advantages of good shock resistance, retraction protection, and flexible operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the usage status of a photovoltaic support cable tension monitoring device proposed in an embodiment of this application;

[0018] Figure 2 This is a three-dimensional schematic diagram of a photovoltaic support cable tension monitoring device proposed in an embodiment of this application;

[0019] Figure 3 This is a three-dimensional schematic diagram from another perspective of a photovoltaic support cable tension monitoring device proposed in the embodiments of this application;

[0020] Figure 4 This is a front view of a photovoltaic support cable tension monitoring device proposed in an embodiment of this application;

[0021] In the diagram: 1. Hinge rod; 2. Rod end spherical bearing; 3. L-shaped round tube; 4. Hinge block; 5. Support rod; 6. Shock absorber; 7. First connecting rod; 8. Second connecting rod; 9. Cylinder; 10. Third connecting rod; 11. Fourth connecting rod; 12. Monitoring instrument body; 13. Sensor module; 14. Signal processing circuit; 15. Limit rod; 16. Universal joint; 17. Position sensor. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that in the description of this application, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale; for example, the thickness or width of some layers may be exaggerated relative to other layers.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0026] In order to solve the technical problems in the background art, such as Figure 1-4 As shown, this application provides a technical solution: a photovoltaic support cable tension monitoring instrument, characterized as follows:

[0027] The hinge rod 1 has a long, hollow structure to reduce its weight and provide space for internal wiring or other structures. Both ends of the hinge rod 1 are equipped with rod end bearings 2; one end is hinged to the photovoltaic support, and the other end has an L-shaped tube 3. A hinge block 4 is integrally formed on the side wall of the hinge rod 1, with hinge holes. The rod end bearing 2 is a cylindrical bearing, providing 360 degrees of rotational freedom and reducing friction and wear. The L-shaped tube 3 is L-shaped and curved; one end is shorter, located at one end of the hinge rod 1, and is engaged with the rod end bearing 2, allowing it to rotate around the bearing; the other end is longer and used to install the support rod 5 and connect other components. A shock absorber 6 is hinged to the side wall of the support rod 5, and the other end of the shock absorber 6 is hinged to the outer wall of the bend in the L-shaped tube 3. The L-shaped tube 3 has a first connecting rod 7 hinged to its hinged end sidewall. The other end of the first connecting rod 7 is hinged to a second connecting rod 8, and the other end of the second connecting rod 8 is hinged to a hinge block 4. The cylinder body of the cylinder 9 is fixed to the photovoltaic support via a fixed bracket, and the end of its piston rod is hinged to the middle of the hinge rod 1. The fixed bracket is bolted to the photovoltaic support to ensure the cylinder 9 remains stable during operation. One end of the third connecting rod 10 is hinged to the hinge rod 1, and its hinge axis is coaxial with the hinge axis of the piston rod, ensuring that the third connecting rod 10 moves synchronously with the hinge rod 1 during the extension and retraction of the cylinder 9. The other end of the third connecting rod 10 is hinged to a fourth connecting rod 11, and the other end of the fourth connecting rod 11 is hinged to the middle of the second connecting rod 8. When the piston rod extends or retracts, it drives the hinge rod 1 to swing. Under the combined action of multiple connecting rods, the hinged end of the L-shaped tube 3 rotates to a position parallel to the hinge rod 1, thereby achieving the contraction of the overall structure. The main body 12 of the monitoring instrument is equipped with a sensor module 13 for detecting cable force. This sensor module 13 can be a camera or a remote camera, etc. The sensor module 13 can convert the cable force into a corresponding electrical signal and transmit it to the signal processing circuit 14 for processing and analysis. Finally, the information is transmitted to the calculator by the wireless transmission module. The analysis device performs spectrum analysis on the signal to calculate the value of the cable force.

[0028] When monitoring the cable tension of the photovoltaic (PV) support is required, the monitoring instrument is first installed on the PV support. Cylinder 9 is activated, extending the piston rod and causing the hinge rod 1 to swing outwards around its hinge point with the PV support. Under the action of the linkage mechanism, the hinged end of the L-shaped tube 3 gradually moves away from the hinge rod 1, the support rod 5 unfolds accordingly, and the shock absorber 6 is in a naturally extended state. The entire device unfolds to its working position, at which point the sensor module 13 inside the monitoring instrument body 12 begins to detect changes in cable tension in real time. The sensor module 13 converts the cable tension into an electrical signal, which is transmitted to the signal processing circuit 14 for processing and analysis. Finally, the information is transmitted to the calculator via a wireless transmission module. The calculator performs spectrum analysis on the signal, calculates the cable tension value, and displays it. When monitoring is not required, cylinder 9 is activated to retract the piston rod. Under the linkage mechanism, the hinged end of the L-shaped tube 3 gradually moves closer to the hinge rod 1, eventually rotating to a position parallel to the hinge rod 1. The entire device retracts into a compact structure, facilitating operation and management.

[0029] This photovoltaic support cable tension monitoring device aims to solve the problems of vibration interference and lack of retraction protection in existing technologies. By setting multiple connecting rods and shock absorbers 6 between the hinge rod 1 and the L-shaped tube 3, it can effectively absorb and buffer external vibrations, protecting the monitoring device body 12 and other components from vibration damage. At the same time, through the extension and retraction of the cylinder 9, the monitoring device can be automatically operated and the overall structure can be retracted, thus effectively protecting the monitoring device when monitoring is not required, extending its service life and reliability.

[0030] Furthermore, this application proposes that the shock absorber 6 is a spring shock absorber 6, which can effectively absorb and buffer external vibrations, protecting the main body 12 of the monitoring instrument and other components from vibration damage. The spring shock absorber 6 absorbs vibration energy through the elastic deformation of the spring, thereby reducing the degree to which vibration is transmitted to the main body 12 of the monitoring instrument and other components. Specifically, when external vibration occurs, the spring shock absorber 6 absorbs and releases vibration energy through the compression and rebound of the spring, reducing the impact of vibration on the main body 12 of the monitoring instrument and other components. Thus, the spring shock absorber 6 can effectively protect the main body 12 of the monitoring instrument and other components, avoiding damage caused by vibration.

[0031] Furthermore, cylinder 9 is electrically controlled, and its extension and retraction are controlled by the controller according to a preset program or external commands, thereby automating the operation of the monitor. Specifically, after receiving the preset program or external commands, the controller controls the motor or solenoid valve of cylinder 9, thus achieving the extension and retraction of the piston rod. In this way, the monitor can be automated, reducing manual intervention and improving work efficiency. There are several ways to implement electrically controlled cylinder 9; for example, a solenoid valve cylinder 9 can be used. The solenoid valve cylinder 9 controls the flow of gas into and out of cylinder 9 through a solenoid valve, thereby achieving the extension and retraction of the piston rod.

[0032] Furthermore, it also includes a limiting rod 15, which is disposed on the hinge rod 1 and is L-shaped, with one end located below the hinge axis of the first connecting rod 7 and the second connecting rod 8. The limiting rod 15 effectively restricts the range of motion of the first connecting rod 7 and the second connecting rod 8, preventing them from excessively swinging during operation, thereby improving the stability and reliability of the entire monitoring instrument. Specifically, the limiting rod 15, through its L-shaped structure, forms a physical constraint below the hinge axis of the first connecting rod 7 and the second connecting rod 8. When the connecting rod moves to a certain angle, the limiting rod 15 will prevent it from continuing to move, ensuring that the monitoring instrument will not suffer structural damage or inaccurate monitoring data due to excessive swinging of the connecting rod during operation.

[0033] Furthermore, the second link 8 and the fourth link 11 are not collinear. When the second link 8 and the fourth link 11 are collinear, a dead point occurs, and the movement may become stuck or even stop. This feature optimizes the motion characteristics of the linkage system. Through this design, possible jamming or interference during the movement of the linkage system can be effectively avoided, thereby improving the reliability and stability of the system.

[0034] Furthermore, a universal joint 16 is included, which is located at the connection between the support rod 5 and the monitoring instrument body 12. The universal joint 16 makes the connection more flexible, adaptable to multi-directional force and motion changes, and improves the adaptability and stability of the monitoring instrument in complex environments. The use of the universal joint 16 can effectively alleviate stress concentration caused by support movement or external vibration, thereby protecting the monitoring instrument body 12 and its internal sensor module 13, ensuring the accuracy and reliability of monitoring data. The universal joint 16 can be implemented using a spherical universal joint. The spherical universal joint 16 achieves free rotation in multiple directions through a spherical joint.

[0035] Furthermore, a position sensor 17 is included, which is mounted on the piston rod of the cylinder 9. The position sensor 17 can detect the extension and retraction position of the piston rod in real time and feed the position signal back to the controller, so that the controller can control the extension and retraction of the cylinder 9 according to the position signal. The position sensor 17 can be of various types, such as an inductive sensor, a photoelectric sensor, or a magnetic sensor. An inductive sensor outputs a signal by sensing changes in the position of the piston rod, a photoelectric sensor detects position changes through the photoelectric effect, and a magnetic sensor detects the position of the piston rod through changes in the magnetic field. The introduction of the position sensor 17 allows for precise control of the extension and retraction of the cylinder 9 based on real-time position signals, thereby improving the automation level and operational accuracy of the photovoltaic support cable tension monitoring instrument. Compared with existing technologies, this design effectively solves the problems of vibration interference and lack of retraction protection, improving the accuracy of monitoring data and the service life of the equipment.

[0036] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic support cable tension monitoring instrument, characterized in that, include: The hinge rod (1) is provided with rod end joint bearings (2) at both ends. One end of the hinge rod (1) is hinged to the photovoltaic bracket, and the other end is provided with an L-shaped round tube (3). The side wall of the hinge rod (1) is integrally formed with a hinge block (4), and the hinge block (4) is provided with a hinge hole. One end of the L-shaped tube (3) is located inside the rod end joint bearing (2), and the other end is hinged to a support rod (5). A shock absorber (6) is hinged to the side wall of the support rod (5), and the other end of the shock absorber (6) is hinged to the outer side wall of the bend of the L-shaped tube (3). A first connecting rod (7) is hinged to the side wall of the hinge end of the L-shaped tube (3), and a second connecting rod (8) is hinged to the other end of the first connecting rod (7). The other end of the second connecting rod (8) is hinged to the hinge block (4). Cylinder (9), the cylinder body of the cylinder (9) is fixed to the photovoltaic bracket by a fixed bracket, and the end of its piston rod is hinged to the middle of the hinge rod (1); The third link (10) has one end hinged to the hinge rod (1), and its hinge axis is coaxial with the hinge axis of the piston rod. The other end is hinged to the fourth link (11), and the other end of the fourth link (11) is hinged to the middle of the second link (8). When the piston rod extends and retracts, it drives the hinge rod (1) to swing. Under the linkage of multiple links, the hinge end of the L-shaped tube (3) rotates to a position parallel to the hinge rod (1), thereby realizing the contraction and expansion of the overall structure. The main body of the monitoring instrument (12) is equipped with a sensor module (13) for detecting cable force. The sensor module (13) can convert the cable force into a corresponding electrical signal and transmit it to the signal processing circuit (14) for processing and analysis. Finally, the wireless transmission module transmits the information to the calculator, and the analysis device performs spectrum analysis on the signal to calculate the value of the cable force.

2. The photovoltaic support cable tension monitoring instrument according to claim 1, characterized in that, The shock absorber (6) is a spring shock absorber (6), which can effectively absorb and buffer external vibrations and protect the main body (12) of the monitoring instrument and other components from vibration damage.

3. The photovoltaic support cable tension monitoring instrument according to claim 1, characterized in that, The cylinder (9) is electrically controlled, and its extension and retraction actions are controlled by the controller according to a preset program or external instructions to realize the automated operation of the monitoring instrument.

4. The photovoltaic support cable tension monitoring instrument according to claim 2, characterized in that, It also includes a limiting rod (15), which is disposed on the hinge rod (1) and is L-shaped, with one end located below the hinge axis of the first connecting rod (7) and the second connecting rod (8).

5. The photovoltaic support cable tension monitoring instrument according to claim 4, characterized in that, The second link (8) is not collinear with the fourth link (11).

6. The photovoltaic support cable tension monitoring instrument according to any one of claims 1-5, characterized in that, It also includes a universal joint (16), which is located at the connection between the support rod (5) and the main body of the monitoring instrument (12).

7. The photovoltaic support cable tension monitoring instrument according to claim 6, characterized in that, It also includes a position sensor (17), which is disposed on the piston rod of the cylinder (9). It can detect the extension and retraction position of the piston rod in real time and feed the position signal back to the controller so that the controller can control the extension and retraction of the cylinder (9) according to the position signal.

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