A connecting bridge and a photovoltaic device

Abstract

The application discloses a connecting bridge and a photovoltaic device, and the connecting bridge mainly comprises two bases arranged oppositely and a telescopic adjusting arm, two extension arms are arranged on a single base, and at least one extension arm is rotationally arranged with the base; and the single adjusting arm is sealingly connected with the two extension arms arranged on different bases through a connecting assembly, the connecting assembly comprises a rotating part and a fixing part, the fixing part penetrates through the rotating part and is fixed with the extension arm, the rotating part is fixed with the adjusting arm, and the rotating part can rotate with the axis of the fixing part as a rotating shaft. The base of the connecting bridge is fixed with two photovoltaic assemblies on both sides, and the telescopic adjusting arm is arranged, when the two photovoltaic assemblies on both sides have different deflection angles, the two bases oppositely keep the same deflection angle with the corresponding photovoltaic assemblies, and the stable connection effect of the photovoltaic assemblies is kept through the deflection of the extension arms relative to the base and the elongation of the adjusting arm connected with the two extension arms.

Description

Technical Field

[0001] This application relates to the field of photovoltaic equipment technology, and in particular to a connecting cable tray and photovoltaic equipment. Background Technology

[0002] During the installation of photovoltaic power plants, gaps are set between different photovoltaic strings to independently adjust their operating status. To reduce the number of cleaning robots required, different photovoltaic strings are usually connected by steel bridges to provide robots with the means to cross between them, thus increasing their operating range. For single-axis photovoltaic modules, adjacent photovoltaic modules on both sides of the gap may have different operating angles. In this case, a rotating arm needs to be installed at the connection point between the bridge and the photovoltaic module, and a universal joint is used to achieve rotation so that the connection between the bridge and the photovoltaic module can still be maintained when the photovoltaic modules on both sides are at different operating angles. However, universal joints are not only expensive, but they are also prone to turning under their own weight, affecting the connection between the bridge and the photovoltaic module. At the same time, in desert environments, sand and other debris can easily enter the universal joint and the telescopic structure of the bridge, causing the bridge to jam, block, or even lose its telescopic function, affecting the connection stability of the bridge to the photovoltaic modules on both sides, and even causing the bridge to break during the rotation of the photovoltaic modules, affecting the operational stability of the photovoltaic equipment.

[0003] Therefore, how to improve the connection stability of the cable tray to the photovoltaic modules with spacing is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a connecting cable tray and photovoltaic equipment to improve the connection stability of the cable tray to the spaced photovoltaic modules.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A cable tray includes:

[0007] Two bases are arranged opposite each other, and each base is provided with two extension arms, and at least one of the extension arms is rotatably arranged with respect to the base;

[0008] A telescopic adjustable arm, wherein a single adjustable arm and two extension arms located on different bases are sealed together by a connecting assembly, the connecting assembly including a rotating part and a fixed part, the fixed part and the rotating part being nested and rotatably engaged, the fixed part being fixed to the extension arm, the rotating part being fixed to the adjustable arm, and the rotating part being able to rotate about the axis of the fixed part as a rotation axis.

[0009] Preferably, in the above-mentioned connecting cable tray, the rotating part is a ball joint with a central opening, the fixing part includes a bolt and a connecting block, the connecting block is embedded inside the extension arm and fixed to the extension arm, and the bolt passes through the central hole of the ball joint and is fixedly connected to the connecting block.

[0010] Preferably, in the above-mentioned connecting cable tray, the connecting assembly further includes a bushing, which is coaxially arranged with the bolt and sleeved on the outer periphery of the bolt, and the two ends of the bushing in the axial direction respectively abut against the ball joint and the connecting block.

[0011] Preferably, in the above-mentioned connecting cable tray, the adjusting arm includes an inner arm and an outer arm that are nested and slidably fitted. The outer arm has a sealing sleeve embedded in the opening on the side where it connects to the inner arm. The sealing sleeve has an installation hole for the inner arm to pass through. The end of the inner arm that penetrates into the outer arm is provided with a limiting sleeve with an outer diameter larger than the inner diameter of the installation hole.

[0012] Preferably, in the above-mentioned connecting cable tray, the outer arm is a square tube, the inner arm is a round tube, and the sealing sleeve is a square sleeve with a round hole in the center that matches the outer diameter of the inner arm.

[0013] Preferably, in the above-mentioned connecting cable tray, the connecting assembly includes a ball joint and a transition member. The ball joint is fixed to the extension arm by bolts. The transition member is inserted into the ball joint and includes a cylindrical mating portion extending into the inner cavity of one end of the adjusting arm. The mating portion is connected to the adjusting arm through a through hole and by a pin.

[0014] Preferably, in the above-mentioned connecting cable tray, both of the extension arms on a single base are rotatably engaged with the base via pins.

[0015] Preferably, in the above-described connecting cable tray, the two extension arms are symmetrically arranged along the length direction of a single base.

[0016] Preferably, in the above-mentioned connecting cable tray, the base is a plate structure with a U-shaped cross-section, and the extension arm is at least partially embedded in the U-shaped groove of the base when it is rotated to a position where it is in the same straight line as the base.

[0017] Preferably, in the above-mentioned connecting bridge, the two opposite bases are disposed in the interval area between two adjacent photovoltaic modules, or the two opposite bases are disposed in the interval area between a photovoltaic module and a cleaning robot parking position.

[0018] A photovoltaic device is characterized in that it includes at least two sets of photovoltaic strings arranged at intervals, and a parking position for a cleaning robot to stop, wherein adjacent photovoltaic strings are connected, and / or the photovoltaic modules are connected to the parking position via a connecting bridge provided by any of the above.

[0019] As can be seen from the above technical solution, the connecting bridge provided in this disclosure mainly includes two bases arranged opposite to each other and a telescopic adjusting arm. The connecting bridge is fixedly connected to the photovoltaic modules on both sides through the bases. The bases are fixed to one side of the photovoltaic modules so as to be arranged on the same plane as the photovoltaic modules. For each base, there are two extension arms to realize the structural extension along the length direction of the base. At least one extension arm is rotatably arranged relative to the photovoltaic module, so that the extension arm has the function of rotation relative to the photovoltaic module. On this basis, the two ends of a single adjusting arm are connected to the two extension arms located on different bases through a connecting component. The adjusting arm is a telescopic structure, and the connecting component includes a rotating part to achieve rotational cooperation with the extension arm. The rotating part only needs to rotate along the axis of the fixed part as the rotation axis to reduce its degree of freedom and failure risk. When the photovoltaic modules on both sides of the connecting bridge are at different deflection angles, the two bases of the connecting bridge are deflected relative to each other, and the extension arm rotates relative to the base. The extension of the extension arm is used to maintain the connection state of the connecting bridge and ensures the smooth passage of the robot on the connecting bridge after the two bases return to the coplanar state.

[0020] The photovoltaic equipment disclosed herein uses the aforementioned connecting bridge between two sets of photovoltaic strings spaced apart. When the two sets of photovoltaic strings are at different deflection angles, the connecting bracket maintains a stable connection between the photovoltaic strings on both sides through the structure of the extension arm and the adjustment arm. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the connecting cable tray structure provided in this disclosure;

[0023] Figure 2 for Figure 1 A diagram showing the back view;

[0024] Figure 3 for Figure 1 Side view;

[0025] Figure 4 This is a schematic diagram of the parallel structure connecting the cable tray to the photovoltaic modules on both sides;

[0026] Figure 5 for Figure 4 A schematic diagram of the bottom structure of the connecting cable tray;

[0027] Figure 6 A schematic diagram of the connection assembly between the outer arm and the extension arm;

[0028] Figure 7 A schematic diagram of the connection assembly between the inner arm and the extension arm;

[0029] Figure 8 A schematic diagram of the inner and outer arm surrounding the circular tube;

[0030] Figure 9 A schematic diagram of a connecting bridge structure with two extension arms for rotation on a single base.

[0031] Among them, 10-base; 110-extension arm; 20-adjusting arm; 210-inner arm; 2110-limiting sleeve; 220-outer arm; 230-sealing sleeve; 2310-mounting hole; 30-connecting assembly; 310-rotating part; 3110-ball joint; 320-fixing part; 3210-bolt; 3220-connecting block; 330-shield; 340-transition piece; 3410-connecting part; 100-photovoltaic module. Detailed Implementation

[0032] The core of this application is to disclose a connecting cable tray and photovoltaic equipment to improve the connection stability of the cable tray to the spaced photovoltaic modules.

[0033] To enable those skilled in the art to better understand the present application, embodiments of the present application will be described below with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model described in the claims. Additionally, the complete content of the structures represented in the following embodiments is not limited to those necessary for the solution of the utility model described in the claims.

[0034] like Figure 1 , Figure 2 and Figure 3As shown, this disclosure provides a connecting bridge, which mainly includes a base 10 and an adjusting arm 20. Two bases 10 are arranged opposite each other for connecting two adjacent photovoltaic modules 100, or for a stop position of a photovoltaic module 100 and a cleaning robot that are spaced apart. It should be noted that the following description takes the connection of the connecting bridge to two adjacent photovoltaic modules 100 that are spaced apart as an example. The base 10 is usually a rigid structure and is fixedly connected to the purlin structure on the side of the photovoltaic module 100 so that the base 10 and the corresponding photovoltaic module 100 are located on the same plane, and can rotate synchronously with the photovoltaic module 100 when the photovoltaic module 100 changes angle. Meanwhile, the base 10 is also provided with an extension arm 110. It should be noted that the extension arm 110 is used to provide structural extensions to the base 10 on both sides in the length direction of the base 10, so that the base 10 including the extension arm 110 can have the same structural length as its corresponding photovoltaic module 100. Thus, after the adjusting arm 20 is connected to the extension arm 110, and when the base 10, the extension arm 110 and the adjusting arm 20 are all located on the same plane, the connecting bridge has a rectangular frame structure and has the same length dimension as the photovoltaic module 100. This enables the cleaning robot to move smoothly from one side of the photovoltaic module 100 to the connecting bridge and cross over to the other side of the photovoltaic module 100, thereby reducing the cost of the number of cleaning robots.

[0035] As for the extension arm 110 set on the base 10, specifically, for a single base 10, at least one of the two extension arms 110 is rotatably connected to the base 10. Specifically, one end of the extension arm 110 is rotatably set on the base 10 through a hinge or pin, while the other end of the extension arm 110 is a free end that can rotate relative to the base 10. This allows the extension arm 110 to be angled within a certain range, thus adapting to the connection requirements of the photovoltaic module 100 when it is rotating.

[0036] The adjusting arm 20 is a telescopic structure, enabling axial length adjustment. Specifically, for example... Figure 1 and Figure 4As shown, a single adjusting arm 20 is sealed to two extension arms 110 located on different bases 10 via a connecting assembly 30, so that the two opposing adjusting arms 20 form a closed frame structure for the connecting cable tray. The sealed connection between the adjusting arm 20 and the extension arm 110 effectively prevents external impurities such as dust and moisture from entering the connection area or the interior of the adjusting arm 20 and the extension arm 110, thereby extending the service life of the cable tray and ensuring the reliability of its connection. The connecting assembly 30 mainly includes a rotating part 310 and a fixed part 320. The fixed part 320 and the rotating part 310 are nested and rotatably engaged. It should be noted that the fixed part 320 and the rotating part 310 are usually nested and rotatably engaged by plugging in each other. The fixed part 320 can pass through the rotating part 310, and similarly, the rotating part 310 can also pass through the fixed part 320. In some embodiments of this disclosure, in order to enable the connecting assembly 30 to have a larger swing angle, the fixing part 320 is disposed through the rotating part 310. Specifically, the fixing part 320 passes through the rotating part 310 and is fixed to the extension arm 110 to fix the connecting assembly 30 on the extension arm 110. The rotating part 310 is fixed to the adjusting arm 20. With the effect of the fixing part 320 passing through, it can rotate about the axis of the fixing part 320 as the rotation axis, thereby driving the end of the adjusting arm 20 connected to it to rotate to a certain degree.

[0037] Based on this, when the photovoltaic modules 100 on both sides of the connecting bridge have different rotation angles, the base 10 and the photovoltaic modules 100 connected to it remain fixed, while the extension arm 110, which is rotatably mounted on the base 10, rotates relative to the base 10 and drives the connecting component 30 to rotate synchronously through the fixing part 320; however, due to the deviation of the photovoltaic modules 100 on both sides, the connection length at both ends of the adjusting arm 20 will change. At this time, by means of the angle adjustment of the rotating part 310 and the extension and retraction of the adjusting arm 20, the connecting angle of the adjusting arm 20 can be changed, and it can be lengthened or shortened as needed to maintain the connection effect of the connecting bridge; at the same time, After the photovoltaic modules 100 on both sides of the connecting bridge return to the same plane, the adjusting arm 20 also returns to the same plane as the photovoltaic modules 100 through its own extension and retraction and the angle adjustment of the rotating part 310, thus maintaining the smooth passage of the robot on the connecting bridge. In the above-mentioned process, in the connecting component 30 used to realize the adjustment arm 20 to rotate at a certain angle, its rotating part 310 only needs to rotate around the axis of the fixed part 320. Compared with the universal joint structure, it has a smaller rotation angle requirement and is less prone to abnormal rotation due to the weight of the surrounding structure, thus having a longer service life and a more stable operating state.

[0038] Furthermore, in order to achieve the rotational requirements of the connecting component 30, such as Figure 5 and Figure 6 As shown, in some embodiments of this disclosure, the rotating part 310 is a ball joint 3110 with a hole in its central region for the fixing part 320 to pass through, so that the ball joint 3110 can rotate around its central axis, thereby driving the angle adjustment of the adjusting arm 20 connected thereto. The fixing part 320 includes a bolt 3210 and a connecting block 3220. The connecting block 3220 is embedded in the inner cavity structure of the extension arm 110, and preferably the outer circumferential size of the connecting block 3220 matches the inner cavity size of the extension arm 110 to seal the inner cavity of the extension arm 110, reducing the risk of impurities entering the extension arm 110. The connecting block 3220 can be fixed to the extension arm 110 circumferentially by fixing structures such as screws and rivets. The bolt 3210 passes through the central hole of the ball joint 3110 and is fixed to the connecting block 3220 to fix the connecting assembly 30 on the adjusting arm 20. This structure is easy to operate, and the tightness of the bolt 3210 can be adjusted as needed to adapt to different installation requirements and environmental conditions. By adopting a combination structure of ball joint 3110, bolt 3210, and connecting block 3220, the connecting component 30 ensures connection reliability while also having flexible rotation function, enabling the connecting cable tray to better adapt to various complex installation scenarios and the layout requirements of photovoltaic module 100 in practical applications, thereby improving the practicality and flexibility of the connecting cable tray.

[0039] To further optimize the above technical solution, the connecting assembly 30 also includes a bushing 330. Specifically, the bushing 330 is coaxially arranged with the bolt 3210 and sleeved on the outer periphery of the bolt 3210. At the same time, the bushing 330 abuts against the ball joint 3110 and the connecting block 3220 at its two ends in the axial direction, respectively. On the one hand, the bushing 330 can form a buffer and support structure between the connecting block 3220 and the ball joint 3110, so as to disperse and transmit the pressure of the bolt 3210 on the ball joint 3110 and the connecting block 3220, avoid damage to the ball joint 3110 or the connecting block 3220 due to excessive local pressure, thereby extending the service life of the connecting assembly 30. On the other hand, the bushing 330 can reduce the direct friction between the ball joint 3110 and the connecting block 3220, reduce the degree of wear, and enable the ball joint 3110 to rotate more flexibly, further improving the reliability of the connecting assembly 30.

[0040] Furthermore, it should be noted that in some embodiments of this disclosure, the bushing 330 is made of a material with certain elasticity and wear resistance, such as polytetrafluoroethylene (PTFE) or nylon, so as to not only provide a good cushioning effect, but also maintain a low coefficient of friction during long-term use, thereby further improving the service life and reliability of the connecting assembly 30.

[0041] Furthermore, in some embodiments of this disclosure, the adjusting arm 20 is composed of an inner arm 210 and an outer arm 220 that are nested and slidably fitted together, so that the telescopic function of the adjusting arm 20 is realized by the sliding action of the inner arm 210 relative to the outer arm 220. Specifically, one end of the inner arm 210 extends into the interior of the outer arm 220, and a sealing sleeve 230 is embedded in the opening on the side of the outer arm 220 that connects to the inner arm 210. The sealing sleeve 230 has a mounting hole 2310 for the inner arm 210 to pass through. The sealing of the sealing sleeve 230 means that the area of ​​the sealing sleeve 230 excluding the mounting hole 2310 can completely seal the opening of the outer arm 220, so as to effectively prevent external dust, moisture and other impurities from entering the interior of the outer arm 220, thereby avoiding problems such as poor sliding or component damage caused by the entry of impurities, and extending the service life of the adjusting arm 20.

[0042] It should be noted that while the sealing sleeve 230 is used for the inner arm 210 to pass through, it can also play a certain guiding role for the inner arm 210, thereby ensuring that the inner arm 210 slides smoothly inside the outer arm 220 and improving the telescopic performance and stability of the adjusting arm 20.

[0043] Based on the above structure, a limiting sleeve 2110 is provided at the end of the inner arm 210 that inserts into the outer arm 220. The outer diameter of the limiting sleeve 2110 is larger than the inner diameter of the mounting hole 2310 to prevent the inner arm 210 from completely sliding out of the outer arm 220, thereby ensuring the structural stability of the adjusting arm 20 during the extension and retraction process. This not only effectively avoids connection failure caused by the inner arm 210 sliding out, but also limits the sliding range of the inner arm 210 to a certain extent, ensuring that the extension and retraction length of the adjusting arm 20 is within a reasonable range, thus better adapting to the connection requirements of the photovoltaic module 100. Through the nested and sliding fit structure of the inner arm 210 and outer arm 220, and the auxiliary design of the sealing sleeve 230 and the limiting sleeve 2110, the adjusting arm 20 achieves the function of extension and retraction, and has good sealing and stability during the extension and retraction process.

[0044] Furthermore, in some embodiments of this disclosure, the outer arm 220 is a square tube structure, which has high strength and stability, and can withstand large forces, thereby providing reliable support for the entire connecting bridge. It also provides a larger contact area for the cleaning robot when it passes through the connecting bridge, thus improving the robot's stability. The inner arm 210, on the other hand, is a round tube structure, which reduces frictional resistance when sliding inside the outer arm 220, thereby improving the flexibility of the adjusting arm 20's extension and retraction. The round tube shape also enhances the stability of the inner arm 210 during sliding, preventing jamming caused by irregular shapes.

[0045] Based on the above structure, the sealing sleeve 230 is a square sleeve structure to fit the inner arm 210. Specifically, the square sealing sleeve 230 can be tightly fitted onto the inner arm 210, thus achieving a smooth seal between the inner arm 210 and the outer arm 220. The center of the square sleeve has a circular hole that matches the outer diameter of the inner arm 210. The matching of the central opening of the square sleeve with the outer diameter of the inner arm 210 specifically means that the inner arm 210 passes through the opening of the square sleeve and can slide at the opening position. At the same time, there is only a small gap between the outer diameter of the inner arm 210 and the opening of the square sleeve, reducing the risk of dust and impurities entering the outer arm 220 from the square sleeve position.

[0046] By designing the outer arm 220 as a square tube, the inner arm 210 as a round tube, and the sealing sleeve 230 as a square sleeve with matching round holes, the structure of the adjusting arm 20 is more reasonable. This not only ensures the realization of its telescopic function but also improves the sealing and stability during the telescopic process. Furthermore, the round tube inner arm 210 has a lower risk of jamming during rotation and sliding, while the square tube outer arm 220 can provide a larger contact area for the cleaning robot while maintaining a stable connection structure, so that the cleaning robot has a more stable running path when passing through the connecting bridge.

[0047] Based on the above embodiments, for the outer arm 220 of the square tube structure, such as Figure 6 As shown, the connecting assembly 30 can use a ball joint 3110, with bolts 3210 and connecting blocks 3220 to connect the outer arm 220 and the extension arm 110. For the inner arm 210 of the circular tube structure, in some embodiments of this disclosure, the fixing part 320 of the connecting assembly 30 used to connect the inner arm 210 and the extension arm 110 on the base 10 is the same as in the aforementioned embodiments, including bolts 3210 and connecting blocks 3220.

[0048] Furthermore, in order to improve the connection effect of the connection component 30, such as Figure 5 and Figure 7As shown, the rotating part 310 of the connecting assembly 30 specifically includes a ball joint 3110 and a transition member 340. The ball joint 3110 is fixed to the extension arm 110 by a bolt 3210. Specifically, a connecting block 3220 is embedded inside the extension arm 110, and the bolt 3210 passes through the ball joint 3110 and is fixed to the connecting block 3220. The transition member 340 is inserted into the ball joint 3110 so that the transition member 340 can follow the ball joint 3110 to rotate around the bolt 3210 axis. The transition member 340 can rotate along the line and effectively transmit force and torque. Simultaneously, the transition member 340 can be connected to different adjusting arms 20 via its other end structure. Taking the above embodiment as an example, where the adjusting arm 20 includes an outer arm 220 of a square tube structure and an inner arm 210 of a round tube structure, the transition member 340 includes a cylindrical docking portion 3410. The docking portion 3410 extends into the inner cavity of the inner arm 210, and is connected to the through hole on the inner arm 210 via a pin. This structure achieves the connection between the extension arm 110 and the inner arm 210 of the round tube structure, while also satisfying the function of the inner arm 210 rotating around the axis of the bolt 3210 in the connecting assembly 30. When adjacent photovoltaic modules 100 rotate to different angles, the inner arm 210 can rotate and extend / retract.

[0049] It needs to be further explained that, such as Figure 8 As shown, in some other embodiments of this disclosure, the outer arm 220 can be the same as the inner arm 210, both adopting a circular tube structure. This reduces the types of materials, allows for standardized processes and equipment in the processing steps, improves processing accuracy and efficiency, and reduces processing costs; and further, as... Figure 8 As shown, the extension arm 110 on the base 10 can also be set as a circular tube structure. With the help of the circumferential symmetry of the circular tube, the contact between the extension arm 110 and the base 10 is more uniform and smooth when the extension arm 110 returns to its original position, which can effectively eliminate the risk of jamming during return and ensure stable operation of the equipment. At the same time, the unified circular tube structure makes the connection method between the extension arm 110 and the inner arm 210 and the outer arm 220 uniform. During the installation process on the project site, the construction personnel can use the same connection process to reduce the installation difficulty, effectively reduce the installation time, and improve the installation efficiency.

[0050] Furthermore, in the connecting cable tray provided in the embodiments of this disclosure, for a single-sided base 10, one extension arm 110 can be rotatably configured relative to the base 10 so that it rotates relative to the base 10 as the base 10 rotates with the photovoltaic module 100, while maintaining the same angle with the opposite photovoltaic module 100. The other extension arm 110 can be fixedly configured with the base 10 and the photovoltaic module 100 connected to the base 10, so that the angle of the connecting cable tray can be adjusted by using the extension arm 110 rotatably configured on the opposite base 10. In some embodiments of this disclosure, such as... Figure 9As shown, the two extension arms 110 on a single base 10 are rotatably coupled to the base 10 via pins, allowing both extension arms 110 to rotate relative to the base 10. This provides greater adjustment freedom for the connecting cable tray. When the base 10 remains fixedly connected to the photovoltaic module 100 and the photovoltaic modules 100 on both sides are at different deflection angles, the two extension arms 110 on a single base 10 can rotate synchronously at a certain angle. This achieves a structure where the two bases 10 on the connecting cable tray deflect while maintaining connection. Compared to a single rotating extension arm 110, this structure allows each extension arm 110 to have a smaller rotation angle during rotation, reducing the risk of damage from large-angle rotation of the extension arm 110. It also provides a larger angle adjustment range for the connecting cable tray, enabling it to better adapt to the installation and adjustment needs of the photovoltaic module 100 and providing a more reliable connection solution for the stable operation of photovoltaic equipment.

[0051] Based on the above embodiments, in order to improve the structural stability of the connecting cable tray, for a single base 10, two extension arms 110 are symmetrically arranged along the length direction of the base 10 to ensure the overall balance and stability of the connecting cable tray. Specifically, the symmetrical arrangement of the two extension arms 110 along the length direction of the base 10 means that the mounting points of the two extension arms 110 on the base 10 are symmetrical about the midpoint of the base 10 along its length. During installation and use, the symmetrical extension arm 110 structure allows the connecting cable tray to be subjected to more even stress, thereby reducing deformation or damage caused by uneven stress.

[0052] It should be noted that the extension arm 110 can be manufactured using various materials and shapes, such as square tubes, round tubes, angle steel, and irregularly shaped tubes, to meet the mechanical performance and spatial layout requirements of different application scenarios.

[0053] In addition, the symmetrically arranged extension arms 110 do not require distinguishing between their positive and negative positions on the base 10, which can reduce the installation difficulty of the connecting cable tray, and the symmetrically arranged extension arms 110 can also improve the overall aesthetics of the connecting cable tray.

[0054] Furthermore, in some embodiments of this disclosure, the base 10 is a U-shaped plate structure with high strength and stability, providing reliable support for the connecting cable tray. Simultaneously, the U-shaped base 10 also offers spatial advantages, better accommodating and arranging the extension arm 110. Specifically, the connection point of the extension arm 110 on the base 10 is located within the groove of the U-shaped base 10, and when the extension arm 110 rotates to a position aligned with the base 10, at least a portion of the extension arm 110 is embedded within the U-shaped groove of the base 10, thereby reducing the overall volume of the connecting cable tray to a certain extent, making it more compact.

[0055] It should be noted that the embedded structure also improves the installation efficiency of the cable tray. During installation, installers can quickly insert the extension arm 110 into the U-shaped groove of the base 10 without any other positioning process, and fix it with pins or other devices, simplifying the installation steps and reducing installation time and cost.

[0056] Furthermore, it should be noted that the connecting bridge provided in this disclosure can be used for gap connection between photovoltaic modules 100. Similarly, it is also suitable for gap connection between the stopping position of the cleaning robot and the photovoltaic module 100. It can serve as a transition bridge on the stopping position side to undertake the transition function. Its connection method and adjustment structure operation process are the same as those in the aforementioned embodiment when applied between two photovoltaic modules 100, and will not be repeated here.

[0057] Furthermore, this disclosure also provides a photovoltaic device, which includes at least two sets of spaced photovoltaic strings and a stopping position for a cleaning robot to stop. The photovoltaic strings are flat single-axis photovoltaic modules with multiple photovoltaic panels. It should be noted that in this photovoltaic device, the spacing between adjacent photovoltaic strings can be achieved using the connecting bridge provided in any of the above embodiments. Similarly, a single photovoltaic string and a single stopping position can also be connected using the connecting bridge provided in any of the above embodiments. Since the connecting bridge has the technical effects provided in any of the above embodiments, the photovoltaic device also has the aforementioned technical effects, which will not be elaborated upon here.

[0058] The terms "first," "second," "left side," and "right side," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units may not be defined in the listed steps or units, but may include steps or units not listed.

[0059] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connecting cable tray, characterized in that, include: Two bases (10) are arranged opposite each other, and two extension arms (110) are provided on each of the bases (10), and at least one of the extension arms (110) is rotatably arranged with respect to the base (10); A telescopic adjusting arm (20) is provided. A single adjusting arm (20) is sealed to two extension arms (110) located on different bases (10) by a connecting assembly (30). The connecting assembly (30) includes a rotating part (310) and a fixed part (320). The fixed part (320) is nested with the rotating part (310) and rotates in cooperation with it. The fixed part (320) is fixed to the extension arm (110), and the rotating part (310) is fixed to the adjusting arm (20). The rotating part (310) can rotate about the axis of the fixed part (320).

2. The connecting cable tray as described in claim 1, characterized in that, The rotating part (310) is a ball joint (3110) with a central opening. The fixing part (320) includes a bolt (3210) and a connecting block (3220). The connecting block (3220) is embedded inside the extension arm (110) and fixed to the extension arm (110). The bolt (3210) passes through the central hole of the ball joint (3110) and is fixedly connected to the connecting block (3220).

3. The connecting cable tray as described in claim 2, characterized in that, The connecting assembly (30) further includes a bushing (330), which is coaxially arranged with the bolt (3210) and sleeved on the outer periphery of the bolt (3210), and the two ends of the bushing (330) in the axial direction respectively abut against the ball joint (3110) and the connecting block (3220).

4. The connecting cable tray as described in claim 1, characterized in that, The adjusting arm (20) includes an inner arm (210) and an outer arm (220) that are nested and slidably fitted. A sealing sleeve (230) is embedded in the opening on the side where the outer arm (220) connects to the inner arm (210). An installation hole (2310) is provided on the sealing sleeve (230) for the inner arm (210) to pass through. A limiting sleeve (2110) with an outer diameter larger than the inner diameter of the installation hole (2310) is provided at the end of the inner arm (210) that passes into the outer arm (220).

5. The connecting cable tray as described in claim 4, characterized in that, The outer arm (220) is a square tube, the inner arm (210) is a round tube, and the sealing sleeve (230) is a square sleeve with a round hole in the center that matches the outer diameter of the inner arm (210).

6. The connecting cable tray as described in claim 1, characterized in that, The connecting assembly (30) includes a ball joint (3110) and a transition member (340). The ball joint (3110) is fixed to the extension arm (110) by bolts (3210). The transition member (340) is inserted into the ball joint (3110) and includes a cylindrical mating part (3410) extending into the inner cavity of one end of the adjusting arm (20). The mating part (3410) has a through hole on the adjusting arm (20) and is connected by a pin.

7. The connecting cable tray as described in claim 1, characterized in that, Both of the extension arms (110) on a single base (10) are rotatably engaged with the base (10) via pins.

8. The connecting cable tray as described in claim 7, characterized in that, The two extension arms (110) are symmetrically arranged along the length of the single base (10).

9. The connecting cable tray as described in claim 1, characterized in that, The base (10) is a plate structure with a U-shaped cross section. When the extension arm (110) is rotated to a position that is in the same straight line as the base (10), it is at least partially embedded in the U-shaped groove of the base (10).

10. The connecting cable tray as described in claim 1, characterized in that, Two opposing bases (10) are disposed in the space between two adjacent photovoltaic modules (100), or two opposing bases (10) are disposed in the space between a photovoltaic module (100) and a cleaning robot parking position.

11. A photovoltaic device, characterized in that, It includes at least two sets of photovoltaic strings arranged at intervals, and a parking position for the cleaning robot to stop. The adjacent photovoltaic strings are connected, and / or the photovoltaic strings and the parking position are connected by a connecting bridge as described in any one of claims 1-10.

Images