Rotating node and flexible tracking photovoltaic system

Abstract

The utility model discloses a rotating node and a flexible tracking photovoltaic system, the rotating node comprises a fixed part, a rotating part, a driving part and a supporting part, the fixed part is fixedly arranged on a main cable through locking parts, and the locking parts and the main cable are arranged in a one-to-one correspondence manner; the rotating part is rotationally connected with the fixed part, the driving part is arranged on the fixed part and is in transmission connection with the rotating part, and the driving part is used for outputting power to drive the rotating part to rotate relative to the fixed part; and the supporting part is fixedly connected with the rotating part. According to the utility model, the main cable is used as an assembly foundation of the fixed part, and then the driving part is used for driving the rotating part to rotate so as to drive the supporting part to rotate, so that the main cable can keep a stable tension supporting state, and the rotating node is arranged on the basis of the main cable instead of a stand column; the stable rotation supporting effect on the photovoltaic panel assembly can be achieved by additionally arranging the nodes in a large-span area.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic equipment technical field, especially in a kind of rotating node and flexible tracking photovoltaic system. BACKGROUND

[0002] In the field of photovoltaic equipment, photovoltaic tracking support can realize the support, fixation and rotation of photovoltaic module, and then have more excellent power generation efficiency by better receiving light;Current photovoltaic tracking support is driven by motor combined with rotary reducer to rotate main shaft, and photovoltaic module on the main shaft is driven to track the sun in real time, and the above structure needs to rotate synchronously with photovoltaic module, and motor needs stable basic structure support and larger power output, and is mostly used on ground or small-span photovoltaic support structure.For the scene of complex terrain and large-span photovoltaic module, more columns need to be set to support, and main shaft with large cross-sectional size is needed to realize support and rotation, which not only has high cost, but also small-span structure cannot meet the setting demand of support in part of complex mountain environment, resulting in that photovoltaic support is difficult to realize high-efficiency power generation of photovoltaic module.

[0003] Therefore, how to improve the adaptability of photovoltaic support in complex environment and meet the high-efficiency power generation demand of photovoltaic module is a technical problem to be solved by the person skilled in the art. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims at providing a rotating node to improve the adaptability of photovoltaic support in complex environment and meet the high-efficiency power generation demand of photovoltaic module.

[0005] Another purpose of the utility model is to provide a flexible tracking photovoltaic system comprising the above rotating node.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A rotating node is arranged on the main cable of a flexible tracking photovoltaic system, comprising:

[0008] A fixed part is fixedly arranged on the main cable by locking part, and the locking part is arranged one by one with the main cable;

[0009] A rotating part and a driving part, the rotating part is rotationally connected with the fixed part, the driving part is arranged on the fixed part and is transmissionally connected with the rotating part, and the driving part is used to output power to drive the rotating part to rotate relative to the fixed part;

[0010] A supporting part is fixedly connected with the rotating part.

[0011] Preferably, in the rotating node, the fixed part and the rotating part have a concentric ring structure, and a sliding bearing is arranged in the sleeving area of the fixed part and the rotating part.

[0012] Preferably, in the rotating node, the fixed part comprises an inner ring frame and a connecting beam, the connecting beam is arranged through the center of the inner ring frame, and the locking component cooperates with the connecting beam to form a connecting hole through which the main cable is arranged.

[0013] Preferably, in the rotating node, the rotating part comprises an outer ring frame and a support beam, the support beam is fixedly arranged on the outer wall surface of the outer ring frame and is arranged in parallel with the connecting beam, and the support part is fixedly arranged on the support beam.

[0014] Preferably, in the rotating node, the outer ring frame comprises an upper shell and a lower shell in a semicircular configuration, and the splicing area of the upper shell and the lower shell is raised and integrally connected by bolts.

[0015] Preferably, in the rotating node, the rotating part further comprises a reinforcing beam, the two ends of the reinforcing beam are fixedly connected with the outer wall surface of the outer ring frame and the support beam respectively, and at least two reinforcing beams are symmetrically arranged about the outer ring frame.

[0016] Preferably, in the rotating node, the driving part is an electric push rod, the electric push rod comprises a base and a telescopic rod, the base is rotatably arranged on the connecting beam, and the action end of the telescopic rod is rotatably arranged on the support beam.

[0017] Preferably, in the rotating node, the base is arranged on the connecting beam in the length direction and is staggered with the midpoint of the connecting beam, and the telescopic rod is also arranged in the length direction of the support beam and is staggered with the midpoint of the support beam.

[0018] Preferably, in the rotating node, the support part comprises at least two parallel and spaced support purlins, the support purlins are parallel to the main cable and are used for supporting the photovoltaic panel assembly.

[0019] Preferably, in the rotating node, the support purlin is a U-shaped beam, and the opening sides of two adjacent support purlins are arranged towards each other.

[0020] A flexible tracking photovoltaic system comprises a main cable, a photovoltaic panel assembly and a rotating node according to any one of the above embodiments, a plurality of the rotating nodes are arranged in parallel and are fixedly connected with the main cable, and the photovoltaic panel assembly is fixedly arranged on the support part of the rotating node.

[0021] From the above technical scheme can be seen, the utility model provides a rotating node, through fixed part as the bearing structure of other components, and the fixed part is fixedly arranged on the main cable through the locking part, and the fixed part is rotationally connected with the rotating part, so that in the process of adjusting the rotating node, the fixed part keeps the position fixed with the main cable, and only the rotating part is adjusted. The above structure provides the rotating node without setting the column structure in the bottom for supporting, and only needs the main cable in good tension state to realize stable installation, and the cost is lower. At the same time, in the process of rotating and adjusting the photovoltaic panel assembly through the rotating node, the main cable only acts as a supporting component and does not participate in rotation, so that the main cable can keep stable tensioning supporting effect after tensioning. The driving part is used to drive the rotating part to perform the rotating action relative to the fixed part, and then the support part fixedly connected with the rotating part realizes the smooth rotating adjustment of the photovoltaic panel assembly. The support base of the above structure is the main cable instead of the column structure, which can be used in the photovoltaic assembly setting scene with large span, meet the tracking demand of photovoltaic panel assembly to light, realize the setting of the tracking flexible tracking photovoltaic system, and then improve the power generation efficiency of the flexible tracking photovoltaic system. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating creative labor.

[0023] Figure 1 The rotating node structure schematic view provided by the embodiment of the utility model;

[0024] Figure 2 The assembly structure schematic view of single rotating node, main cable and photovoltaic panel assembly;

[0025] Figure 3 The assembly structure schematic view of fixed part and rotating part;

[0026] Figure 4 The structure schematic view of the flexible tracking photovoltaic system provided by the embodiment of the utility model.

[0027] Wherein, 10 - fixed part; 110 - inner ring frame; 120 - connecting beam; 20 - rotating part; 210 - outer ring frame; 2110 - upper shell; 2120 - lower shell; 220 - support beam; 230 - reinforcing beam; 30 - drive part; 310 - electric push rod; 3110 - base; 3120 - telescopic rod; 40 - support part; 410 - support purlin; 50 - locking part; 60 - sliding bearing; 710 - main cable; 720 - photovoltaic panel assembly; 730 - rotating node. DETAILED DESCRIPTION

[0028] The core of the utility model lies in disclose a kind of rotating node, to improve the adaptation degree of photovoltaic support under complex environment, meet the efficient power generation demand of photovoltaic assembly.

[0029] Another purpose of the utility model is to provide a kind of flexible tracking photovoltaic system containing the rotating node.

[0030] In order to make the personnel in the technical field better understand the utility model scheme, the utility model embodiment is described below with reference to the drawings, and besides, the embodiment shown below does not have any limiting effect on the utility model content recorded in claim.In addition, the entire content of the constitution represented in the following embodiment is not limited to the solution of the utility model recorded in claim.

[0031] As Figure 1 And Figure 2 As shown in the utility model embodiment provided by the rotating node, it is arranged on the main cable 710 of the flexible tracking photovoltaic system, to realize the rotation of the photovoltaic panel assembly 720 in the flexible tracking photovoltaic system based on the main cable 710, to meet the real-time tracking of sunlight of the photovoltaic panel assembly 720, and to improve the power generation efficiency of the flexible tracking photovoltaic system.

[0032] Specifically, the rotating node mainly includes fixed part 10, rotating part 20, drive part 30 and support part 40, wherein the fixed part 10 is a rigid structure and is fixedly arranged on the main cable 710 by locking part 50 to provide a basic bearing structure for other components of the rotating node.Locking part 50 is arranged one by one with the main cable 710, and here one by one corresponds to each main cable 710 corresponding to one locking part 50, and in some embodiments, the main cable 710 is usually arranged in two parallel ways, and is tensioned by two end columns, and correspondingly, for a single rotating node, the fixed part 10 is fixedly connected with the main cable 710 by two locking parts 50, and the two-point stationary point fixed mode can keep the fixed part 10 in a stable structure setting state on the main cable 710.

[0033] It should be noted that the above structure simplifies the structural complexity of the rotating node while maintaining its functional effect. Similarly, the fixing part 10 and the single main cable 710 can also be fixed by two or more locking parts 50. The two or more locking parts 50 are spaced apart in the length direction of the main cable 710 to improve the structural stability of the fixing part 10 through multi-point connection.

[0034] Based on this, the rotating part 20 is rotatably connected to the fixed part 10. Here, rotatable connection means that the rotating part 20 can rotate relative to the fixed part 10 and the main cable 710. The specific rotation is achieved by the drive part 30. The drive part 30 is provided on the fixed part 10 and is connected to the rotating part 20 for transmission. The drive part 30 is used to output power, which drives the rotating part 20 to generate rotational movement relative to the fixed part 10 based on the fixed part 10.

[0035] It should be noted that the drive unit 30 can be fixedly mounted on the fixed unit 10 so that one end of it is stationary relative to the main cable 710. The drive unit 30 can include a swing rod. The drive unit 30 drives the swing rod to swing based on a preset point through electric or hydraulic action. The moving end of the swing rod is fixedly connected to the rotating unit 20. During the swinging process, the swing rod can drive the rotating unit 20 to rotate relative to the fixed unit 10. By setting the swing direction of the swing rod, the clockwise and counterclockwise rotation of the rotating unit 20 can be achieved, thereby enabling the rotating node to have the effect of driving the rotation of the photovoltaic panel module 720.

[0036] Similarly, the drive unit 30 can also be a structure with its two ends hinged to the fixed part 10 and the rotating part 20 respectively. Based on this, the drive unit 30 adjusts its own length and the fixed part 10 is fixed relative to the main cable 710. It then applies a force to the rotating part 20 through the other end, thereby satisfying the clockwise and counterclockwise movement of the rotating part 20 relative to the fixed part 10 through the elongation and shortening action.

[0037] Furthermore, the support part 40 is a structure that is directly connected to the photovoltaic panel assembly 720 in the flexible tracking photovoltaic system. It is provided on the rotating part 20 and can be fixed to the rotating part 20 as an integral structure by welding or bolting. Under the driving action of the drive part 30, it can follow the rotating part 20 to perform a rotational action relative to the fixed part 10. In turn, when the rotating node is used in the flexible tracking photovoltaic system, it drives the photovoltaic panel assembly 720 to rotate and achieve the effect of tracking the light.

[0038] The rotating node provided in this embodiment uses a fixing part 10 as a load-bearing structure for other components. The fixing part 10 is fixedly mounted on the main cable 710 by a locking part 50. Simultaneously, the fixing part 10 is rotatably connected to a rotating part 20, so that during adjustment of the rotating node, the fixing part 10 and the main cable 710 remain in a fixed position, and adjustment is achieved solely through the rotating part 20. This rotating node design eliminates the need for a bottom support column structure; stable installation is achieved solely based on the well-tensioned main cable 710, reducing the production cost of new flexible tracking photovoltaic systems. Furthermore, during the rotation adjustment of the photovoltaic panel module 720 via the rotating node, the main cable 710 only acts as a support and does not participate in the rotation, thus ensuring a stable tension support effect after tensioning and fixing. The drive unit 30 is used to drive the rotating unit 20 to perform a rotational action relative to the fixed unit 10, and then the photovoltaic panel module 720 is smoothly rotated and adjusted by the support unit 40 fixedly connected to the rotating unit 20. The support base of the above structure is the main cable 710 rather than the column structure, which can be used in photovoltaic module installation scenarios with large spans, thereby improving the power generation efficiency of the flexible tracking photovoltaic system.

[0039] Furthermore, in the rotating node provided in this embodiment of the present invention, the rotational engagement of the fixed part 10 and the rotating part 20 is the basis for the smooth rotation of the support part 40. The fixed part 10 and the rotating part 20 can achieve rotational engagement through various structures. In some embodiments of the present invention, the fixed part 10 and the rotating part 20 can achieve rotational connection through a sliding track engagement. That is, the fixed part 10 and the rotating part 20 are partially stacked. The fixed part 10 is provided with a guide groove in the stacked area, and the rotating part 20 is provided with a protrusion to be inserted into the guide groove. The guide groove is an arc structure so that the movement process of the protrusion in the guide groove is an arc-shaped rotation process. On this basis, the driving part 30 applies a force to the rotating part 20 along the groove direction of the guide groove or at a non-perpendicular angle to the groove direction of the guide groove, thereby realizing the sliding of the protrusion in the driving part 30, and thus satisfying the rotational action of the rotating part 20 relative to the fixed part 10.

[0040] It should be noted that the rotational connection between the fixed part 10 and the rotating part 20 can also be achieved by a structure such as a slide rail or slide path. The arrangement is similar to the matching method of the guide groove and the protrusion in the above embodiment, and will not be described again here.

[0041] To improve the connection between the fixed part 10 and the rotating part 20 and prevent the rotating part 20 from detaching from the fixed part 10 during rotation, in some embodiments of this utility model, the fixed part 10 and the rotating part 20 are arranged in a concentric ring structure. To facilitate the connection between the rotating part 20 and the support part 40, the fixed part 10 is preferably located in the inner ring of the concentric ring as a basic load-bearing structure, and the main cable 710 passes through the inner ring of the fixed plate and is connected to the fixed part 10. The rotating part 20 is located in the outer ring of the concentric ring so as to be directly connected to the support part 40 and other structures at its side wall or outer wall position. On this basis, a sliding bearing 60 is provided in the area where the fixed part 10 and the rotating part 20 are fitted together to realize the rotation setting of the fixed part 10 and the rotating part 20. Meanwhile, the sliding bearing 60 is preferably made of high-molecular plastic material, which has the effect of resisting chemical corrosion in outdoor environment and has a good resistance to various strong oxidants such as acids, alkalis and salts. At the same time, it has the characteristics of being lighter than metal, which reduces the load on the main cable 710 when the rotating node is set on the main cable 710.

[0042] It should be noted that the concentric ring structure of the fixed part 10 and the rotating part 20 has a larger overlapping area, resulting in a more stable connection. At the same time, the fixed part 10 and the rotating part 20 are connected by a rotating bearing, which allows the rotating part 20 to make full contact with the outer wall of the fixed part 10 during rotation, without causing the rotating part to deviate or fall off. In addition, the entire structure of the rotating part 20 can rotate around the fixed part 10 as an axis, which allows the support part 40 to have a more flexible connection posture. That is, the support part 40 only needs to be fixed to any position on the rotating part 20 to satisfy the rotation effect of following the rotating part 20.

[0043] Based on the stable annular rotation structure achieved by the sliding bearing 60, in some embodiments of this utility model, in order to improve the structural stability of the fixing part 10 and facilitate the stable installation of the main cable 710, the fixing part 10 specifically includes an inner ring frame 110 and a connecting beam 120. The inner ring frame 110 is a regular circular structure, and the two ends of the connecting beam 120 are fixedly set at two points on the inner wall of the inner ring frame 110, so as to strengthen the structure of the inner ring frame 110 through the supporting effect of the connecting beam 120. Based on this, the locking component 50 cooperates with the connecting beam 120 to lock the main cable 710, thereby satisfying the fixed setting of the fixing part 10 on the main cable 710. Specifically, at least two main cables 710 pass through and fit against one side wall of the connecting beam 120 to provide two connection points for the fixing part 10 to meet its fixed setting requirements. The locking component 50 is a U-bolt. The U-bolt passes through the connecting beam 120 and forms a connection hole structure between its closed end and one side wall of the connecting beam 120. The connection hole structure is used to fit around the outer periphery of the main cable 710. Then, by tightening the U-bolt, the closed end of the U-bolt contacts the main cable 710, thereby pressing the main cable 710 against the side wall of the connecting beam 120. Tightening the nut on the U-bolt can achieve the fixed setting of the connecting beam 120 on the main cable 710.

[0044] It should be noted that, in the above embodiments, it is preferable that the two main cables 710 are fixed to the same sidewall of the connecting beam 120. For example, when the two main cables 710 are on the same horizontal plane relative to the ground, the connecting beam 120 is also horizontally positioned and placed at the bottom of the main cables 710. In addition, in order to enable the connecting beam 120 to provide a stable reinforcement effect on the inner ring frame 110 and to enable the two main cables 710 to provide stable support force to the connecting beam 120 and the fixing part 10, it is preferable that the connecting beam 120 passes through the center of the inner ring frame 110, that is, the connecting beam 120 is positioned along one diameter of the inner ring frame 110, and the two locking components 50 are symmetrically positioned on the connecting beam 120 about the midpoint of the connecting beam 120. The connecting beam 120 divides the inner ring frame 110 into two semi-circular structures, so that after the locking components 50 located on the connecting beam 120 are fixedly connected to the main cables 710, they can provide a more uniform and symmetrical support force to the fixing part 10 at two symmetrical points on the diameter structure.

[0045] Furthermore, corresponding to the fixing part 10 containing the inner ring frame 110 structure, in some embodiments of this utility model, the rotating part 20 includes an outer ring frame 210 and a supporting beam 220. The outer ring frame 210 is sleeved on the outer periphery of the inner ring frame 110 to form a cavity structure with the inner ring frame 110 for the sliding bearing 60. Thus, after the fixing part 10 is fixedly installed, the rotating part 20 and the fixing part 10 can be rotated. The supporting beam 220 is fixedly installed on the outer wall surface of the outer ring frame 210. Its position can be through the plane of the outer ring frame 210 or tangential to the outer wall surface of the outer ring frame 210. The supporting beam 220 is used to support the supporting part 40 to achieve stable installation of the supporting part 40. With the help of the beam structure, the supporting part 40 can be fixed to the top surface of the supporting beam 220 by welding or bolting to meet the load-bearing requirements of the photovoltaic panel module 720.

[0046] It should be noted that since the rotation of the outer ring frame 210 is centered on the center of the inner ring frame 110, to ensure a more regular movement path for the rotating part 20, it is preferable that the supporting beam 220 and the outer ring frame 210 are disposed on the same plane, and the supporting beam 220 is tangent to the outer wall surface of the outer ring frame 210; furthermore, in the basic state, i.e., the assembled state when the rotating part 20 is not rotating, the supporting beam 220 is arranged parallel to the connecting beam 120 in the fixing part 10. Based on this, when the two main cables 710 pass through the same side of the connecting beam 120, the plane formed by the two main cables 710 is also parallel to the supporting beam 220. The supporting force exerted by the main cables 710 on the fixed part 10 and the rotating part 20 can be perpendicular to the supporting beam 220, so that the photovoltaic panel assembly 720 carried on its upper part remains parallel to the main cables 710; thereby, the supporting beam 220 maintains a stable bearing state and satisfies the stable support for the supporting part 40 and the photovoltaic panel assembly 720.

[0047] To further optimize the above technical solution, in some embodiments of this utility model, such as Figure 3As shown, the outer ring frame 210 includes a semi-circular upper shell 2110 and a lower shell 2120, which improve the ease of assembly between the outer ring frame 210 and the inner ring frame 110 through the separate structure of the upper shell 2110 and the lower shell 2120. At the same time, the splicing area of ​​the upper shell 2110 and the lower shell 2120 is provided with corresponding protrusions. The protrusions are based on the outer wall of the outer ring frame 210 and protrude in a direction away from its center. After the protrusions of the upper shell 2110 and the lower shell 2120 are joined together, a through hole is formed, and they are fixedly connected as a whole structure by bolts. The split assembly structure of the upper housing 2110 and the lower housing 2120 allows the inner ring frame 110 and the sliding bearing 60 to be integrated into the lower housing 2120 after the sliding bearing 60 is fitted onto the outer periphery of the inner ring frame 110. The semi-circular structure of the lower housing 2120 allows the integrated structure of the inner ring frame 110 and the sliding bearing 60 to be directly inserted. After the integrated structure of the inner ring frame 110 and the sliding bearing 60 is in place, the upper housing 2110 and the lower housing 2120 are then connected and fixed with bolts, thus achieving convenient assembly of the rotating part 20, the fixed part 10 and the sliding bearing 60.

[0048] It should be noted that, based on the above structure, the supporting beam 220 can be pre-assembled with the upper housing 2110 as an integral structure, and its installation is completed when the upper housing 2110 and the lower housing 2120 are assembled with bolts. Furthermore, the upper housing 2110 and the lower housing 2120 are fixed in the mating area on one side by at least two spaced bolts to improve the stability of their connection structure and avoid the risk of separation caused by the force exerted by the sliding bearing 60 on the upper housing 2110 and the lower housing 2120 during rotation.

[0049] Since the supporting beam 220 is in direct contact with the supporting part 40, its structural stability is the basis for the supporting part 40 to provide effective support for the photovoltaic panel module 720. Therefore, in some embodiments of this utility model, the rotating part 20 also includes a reinforcing beam 230 to provide structural reinforcement to the supporting beam 220 and to rotate synchronously with the supporting beam 220. Specifically, the two ends of the reinforcing beam 230 are fixedly connected to the outer wall of the outer ring frame 210 and the supporting beam 220, respectively, which can be achieved by welding or bolting. Since the supporting beam 220 and the outer ring frame 210 are tangentially connected, after the reinforcing beam 230 is provided, a single reinforcing beam 230 can form a closed small frame structure with the outer ring frame 210 and the supporting beam 220, so that the supporting beam 220 has stronger structural stability. It should also be noted that the closed frame structure formed by the reinforcing beam 230, the outer ring frame 210, and the supporting beam 220 can be increased by increasing the number of reinforcing beams 230, thereby correspondingly improving the reinforcement effect of the supporting beam 220.

[0050] Furthermore, to balance the production cost and reinforcement effect of the rotating node, in a specific embodiment of this utility model, two reinforcing beams 230 are provided, and the two reinforcing beams 230 are symmetrically arranged about the outer ring frame 210. It should also be noted that in this embodiment, the supporting beam 220 is also symmetrically arranged about the outer ring frame 210. Specifically, the supporting beam 220 is tangent to the outer wall surface of the outer ring frame 210, and the supporting beam 220 is symmetrical about its tangent point on the outer ring frame 210. The length of the supporting beam 220 on both sides of the tangent point is equal. Since the two reinforcing beams 230, which are also symmetrically arranged about the outer ring frame 210, need to be connected to the supporting beam 220, they also need to be symmetrical about the tangent point of the supporting beam 220 on the outer ring frame 210. The supporting beam 220 and the outer ring frame 210 can form two symmetrical closed frame structures with equal areas, so that the two ends of the supporting beam 220 away from the tangent point also have a connection foundation, thus enabling stable support for the support part 40.

[0051] Furthermore, in the rotating node provided in the embodiments of this utility model, the driving part 30 can be a power component such as a motor or hydraulic cylinder that drives the rotating part 20 and the fixed part 10 to generate relative motion. In some embodiments of this utility model, in order to reduce the production cost of the rotating node, the driving part 30 adopts an electric push rod 310 with low cost and simple operation process, so that the rotation process of the rotating node is stable and effective. Specifically, the electric push rod 310 includes a base 3110 and a telescopic rod 3120. The base 3110 is rotatably mounted on the connecting beam 120, which can be achieved by a structure such as a pin, hinge, or bearing. In a specific embodiment of this utility model, the end of the base 3110 is an annular groove, while a protruding shaft structure is provided on one side of the connecting beam 120. The annular groove of the base 3110 is sleeved on the outer periphery of the protruding shaft to achieve a rotatable connection between the two. Here, the protruding shaft is set on one side wall of the connecting beam 120 parallel to the inner ring frame 110, so that the driving part 30 can deviate from the fixed part 10 and the rotating part 20, and apply a force to the rotating part 20 from one side. The telescopic rod 3120 of the electric push rod 310 includes an actuating end located away from the base 3110. The actuating end is rotatably mounted on the support beam 220. It can also be rotatably mounted through the cooperation structure of the protruding shaft and the annular groove, which will not be described in detail here. When the telescopic rod 3120 changes length, the electric push rod 310 can generate a component force at the actuating end of the telescopic rod 3120 through the rotational action and position fixation effect with the connecting beam 120, thereby pushing the support beam 220 to rotate to meet the length change of the electric push rod 310. Based on this, by adjusting the extension and retraction of the telescopic rod 3120, the clockwise and counterclockwise rotation of the support beam 220 based on the fixed part 10 can be realized.

[0052] It should be further explained that the purpose of the electric actuator 310 is to generate a force along the rotation direction on the supporting beam 220 and the rotating part 20 by changing its length and using the positional fixation effect of the fixing part 10, thereby satisfying the rotation drive of the rotating part 20. The electric actuator 310 can be arbitrarily set as long as the force component effect is along the rotation direction of the rotating part 20. For example, the electric actuator 310 can be set perpendicular to the connecting beam 120, and the connection point of the electric actuator 310 and the connecting beam 120 is offset from the midpoint of the connecting beam 120, so that the connection point of the electric actuator 310 and the supporting beam 220 is offset from the tangent point of the supporting beam 220 and the outer ring frame 210. In this case, the electric actuator 310 can provide a force component to drive the rotating part 20 to perform rotation when the telescopic rod 3120 extends and retracts.

[0053] In some other embodiments of this utility model, the base 3110 is rotatably disposed on the connecting beam 120 along the length direction and offset from the midpoint; at the same time, the connection point of the telescopic rod 3120 on the supporting beam 220 is also offset from the midpoint of the supporting beam 220, so that the electric push rod 310 can realize rotational drive of the rotating part 20, without making the driving force arm too short or disappearing and difficult to drive.

[0054] Furthermore, in the rotating node provided in this embodiment of the present invention, the support part 40 can be a frame structure and fixedly installed on the support part 40 in an integrated structure. Alternatively, the support part 40 can be a multi-part beam structure, which is respectively connected and fixed to the support beam 220. In some embodiments of the present invention, the support part 40 includes at least two parallel and spaced-apart support purlins 410. It should be noted that the at least two parallel and spaced-apart support purlins 410 are used to simulate the parallel structure of the main cable 710, providing a stable support foundation for the photovoltaic panel assembly 720. The two support purlins 410 can be connected into an integrated structure by multiple reinforcing ribs perpendicular to the support purlins 410, or they can be two separate support purlin structures, each fixedly installed on the support beam 220. The support purlins 410 are arranged parallel to the main cable 710, so that the photovoltaic panel assembly 720, which can be smoothly assembled onto the main cable 710, can also be installed on the support purlins 410.

[0055] It should be noted that the support purlin 410 structure can save material usage in the support part 40 and reduce the production cost of the rotating node. At the same time, in order to ensure the support stability of the support part 40 while saving materials, in some embodiments of this utility model, the support purlin 410 is a U-shaped beam to have good rigidity. In addition, the opening sides of two adjacent support purlins 410 are arranged facing each other, so that when the two adjacent support purlins 410 are reinforced in the middle, they can form a stable truss structure and have a tendency to deform towards the opposite inward side when deformed. This avoids the problem of the two support purlins 410 deforming towards the same side when subjected to accidental force, which could lead to the photovoltaic panel module 720 falling off.

[0056] Furthermore, such as Figure 4 As shown in the figure, this utility model embodiment also provides a flexible tracking photovoltaic system. This flexible tracking photovoltaic system includes a main cable 710, a photovoltaic panel assembly 720, and multiple rotating nodes 730 provided in any of the above embodiments. The main cable 710 is tensioned through end columns and a middle column structure. The multiple rotating nodes 730 are arranged in parallel, and each rotating node 730 is fixedly connected to the main cable 710 through its fixing part 10. The photovoltaic panel assembly 720 is fixedly mounted on the support parts 40 on the multiple rotating nodes 730, so that it can follow the rotation of the main cable 710 under the synchronous action of multiple driving parts 30, thereby achieving the effect of tracking light and improving the power generation efficiency of the flexible tracking photovoltaic system. It should be noted that since the rotating node 730 has the above-mentioned technical effects, the flexible tracking photovoltaic system also has the above-mentioned technical effects, which will not be elaborated further here.

[0057] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0058] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0059] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles employed, and is not intended to limit this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. The scope of this utility model is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this utility model.

Claims

1. A swivel node configured to be disposed on a main cable of a flexible tracking photovoltaic system, the swivel node comprising: The utility model relates to a rotating node for photovoltaic panel assembly, comprising: a fixing part fixedly arranged on the main cable by locking parts, and the locking parts are arranged one by one corresponding to the main cable; a rotating part and a driving part, the rotating part is rotationally connected with the fixing part, the driving part is arranged on the fixing part and is in transmission connection with the rotating part, and the driving part is used for outputting power to drive the rotating part to rotate relative to the fixing part; a supporting part fixedly connected with the rotating part.

2. The rotary node of claim 1, wherein, The fixing part comprises an inner ring frame and a connecting beam, the connecting beam is arranged through the center of the inner ring frame, and the locking parts are matched with the connecting beam to form connecting holes for the main cable to pass through.

3. The rotary node of claim 2, wherein, The rotating part comprises an outer ring frame and a supporting cross beam, the outer ring frame is matched with the inner ring frame and is rotationally connected through a sliding bearing; the supporting cross beam is fixedly arranged on the outer wall surface of the outer ring frame and is arranged in parallel with the connecting beam, and the supporting part is fixedly arranged on the supporting cross beam.

4. The rotary node of claim 3, wherein, The outer ring frame comprises a semicircular upper shell and a lower shell, the splicing area of the upper shell and the lower shell is protruded and fixedly connected as an integral structure through bolts.

5. The rotary node of claim 3, wherein, The rotating part further comprises a reinforcing beam, the two ends of the reinforcing beam are fixed with the outer wall surface of the outer ring frame and the supporting cross beam respectively, and at least two reinforcing beams are arranged symmetrically about the outer ring frame.

6. The rotary node of claim 3, wherein, The driving part is an electric push rod and is hingedly connected with the fixing part and the rotating part respectively, the electric push rod comprises a base and a telescopic rod, the base is rotationally arranged on the connecting beam, and the action end of the telescopic rod is rotationally arranged on the supporting cross beam.

7. The rotary node of claim 6, wherein, The base is arranged on the connecting beam in the length direction and is staggered with the midpoint of the connecting beam, and the telescopic rod is also arranged in the length direction of the supporting cross beam and is staggered with the midpoint of the supporting cross beam.

8. The rotary node of claim 1, wherein, The supporting part comprises at least two parallel and spaced supporting purlins, the supporting purlins are parallel to the main cable and are used for supporting the photovoltaic panel assembly.

9. The rotary node of claim 8, wherein, The supporting purlin is a U-shaped beam, and the opening sides of two adjacent supporting purlins are arranged towards each other.

10. A flexible tracking photovoltaic system characterized by, The utility model relates to a rotating node for photovoltaic panel assembly, comprising: a fixing part fixedly arranged on the main cable by locking parts, and the locking parts are arranged one by one corresponding to the main cable; a rotating part and a driving part, the rotating part is rotationally connected with the fixing part, the driving part is arranged on the fixing part and is in transmission connection with the rotating part, and the driving part is used for outputting power to drive the rotating part to rotate relative to the fixing part; a supporting part fixedly connected with the rotating part. The fixing part comprises an inner ring frame and a connecting beam, the connecting beam is arranged through the center of the inner ring frame, and the locking parts are matched with the connecting beam to form connecting holes for the main cable to pass through. The rotating part comprises an outer ring frame and a supporting cross beam, the outer ring frame is matched with the inner ring frame and is rotationally connected through a sliding bearing; the supporting cross beam is fixedly arranged on the outer wall surface of the outer ring frame and is arranged in parallel with the connecting beam, and the supporting part is fixedly arranged on the supporting cross beam. The outer ring frame comprises a semicircular upper shell and a lower shell, the splicing area of the upper shell and the lower shell is protruded and fixedly connected as an integral structure through bolts. The rotating part further comprises a reinforcing beam, the two ends of the reinforcing beam are fixed with the outer wall surface of the outer ring frame and the supporting cross beam respectively, and at least two reinforcing beams are arranged symmetrically about the outer ring frame. The driving part is an electric push rod and is hingedly connected with the fixing part and the rotating part respectively, the electric push rod comprises a base and a telescopic rod, the base is rotationally arranged on the connecting beam, and the action end of the telescopic rod is rotationally arranged on the supporting cross beam. The base is arranged on the connecting beam in the length direction and is staggered with the midpoint of the connecting beam, and the telescopic rod is also arranged in the length direction of the supporting cross beam and is staggered with the midpoint of the supporting cross beam. The supporting part comprises at least two parallel and spaced supporting purlins, the supporting purlins are parallel to the main cable and are used for supporting the photovoltaic panel assembly. The supporting purlin is a U-shaped beam, and the opening sides of two adjacent supporting purlins are arranged towards each other. The utility model relates to a rotating node for photovoltaic panel assembly, comprising: a fixing part fixedly arranged on the main cable by locking parts, and the locking parts are arranged one by one corresponding to the main cable; a rotating part and a driving part, the rotating part is rotationally connected with the fixing part, the driving part is arranged on the fixing part and is in transmission connection with the rotating part, and the driving part is used for outputting power to drive the rotating part to rotate relative to the fixing part; a supporting part fixedly connected with the rotating part. The fixing part comprises an inner ring frame and a connecting beam, the connecting beam is arranged through the center of the inner ring frame, and the locking parts are matched with the connecting beam to form connecting holes for the main cable to pass through. The rotating part comprises an outer ring frame and a supporting cross beam, the outer ring frame is matched with the inner ring frame and is rotationally connected through a sliding bearing; the supporting cross beam is fixedly arranged on the outer wall surface of the outer ring frame and is arranged in parallel with the connecting beam, and the supporting part is fixedly arranged on the supporting cross beam. The outer ring frame comprises a semicircular upper shell and a lower shell, the splicing area of the upper shell and the lower shell is protruded and fixedly connected as an integral structure through bolts. The rotating part further comprises a reinforcing beam, the two ends of the reinforcing beam are fixed with the outer wall surface of the outer ring frame and the supporting cross beam respectively, and at least two reinforcing beams are arranged symmetrically about the outer ring frame. The driving part is an electric push rod and is hingedly connected with the fixing part and the rotating part respectively, the electric push rod comprises a base and a telescopic rod, the base is rotationally arranged on the connecting beam, and the action end of the telescopic rod is rotationally arranged on the supporting cross beam. The base is arranged on the connecting beam in the length direction and is staggered with the midpoint of the connecting beam, and the telescopic rod is also arranged in the length direction of the supporting cross beam and is staggered with the midpoint of the supporting cross beam. The supporting part comprises at least two parallel and spaced supporting purlins, the supporting purlins are parallel to the main cable and are used for supporting the photovoltaic panel assembly. The supporting purlin is a U-shaped beam, and the opening sides of two adjacent supporting purlins are arranged towards each other. The utility model relates to a rotating node for photovoltaic panel assembly, comprising:

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