Node support for anchoring end of cable structure photovoltaic cross beam

Abstract

The utility model provides a node support used for a cable structure photovoltaic crossbeam anchoring end, comprising a frame column, two sides of the frame column are fixedly provided with an inner connecting plate and an outer connecting plate, the top end of the frame column is fixedly provided with a middle connecting plate, and two sides of the middle connecting plate and the inner connecting plate are provided with first anchoring bolts. The first anchor bolt is used for fixing a bearing cable penetrating through the inner connecting plate and the middle connecting plate to the middle connecting plate and the inner connecting plate, a clamping plate is fixedly arranged on the outer connecting plate, an anchor device is rotationally arranged on the clamping plate, and the anchor device is used for being fixedly connected with one end of a stay cable. According to the utility model, the durability of the structure is improved, the stress influence caused by the ultra-large span and severe conditions of the photovoltaic support is reduced, and the safety of the whole structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-layer prestressed cable photovoltaic supports, in particular to a node support used for the anchoring end of a cable structure photovoltaic beam. Background Art

[0002] The photovoltaic supports currently used in engineering projects can be divided into two categories: one is the traditional rigid photovoltaic support, and the other is the flexible support. The flexible support includes single-layer prestressed cable photovoltaic support and double-layer prestressed cable photovoltaic support.

[0003] Due to the limitation of the structural form, the span of traditional rigid photovoltaic brackets is generally about 5m, and they need to be fully distributed in the photovoltaic power plant area. Therefore, the application area is greatly limited. They are generally used in deserts, Gobi, and some roofs, mountains, fish ponds, mudflats and other places with better conditions. They cannot be used in mountains with large slopes and high vegetation, mudflats with poor geological conditions, fish ponds with deep water levels and large spans, and pools in sewage treatment plants.

[0004] Single-layer prestressed cable photovoltaic supports use prestressed steel strands stretched between two fixed points, with a rigid foundation providing the counterforce. This allows for spans of 10 to 30 meters. However, single-layer prestressed cable photovoltaic supports lack stability, are prone to significant deflection, and are susceptible to significant displacement under wind loads, making them difficult to achieve for larger spans.

[0005] Double-layer prestressed cable photovoltaic supports are composed of component load-bearing, stable flexible cables, and intermediate struts (for example, the Chinese invention patent with authorization announcement number CN110011598B). Ultimately, the force is transmitted to the rigid support frames at both ends, which then transfer the force to the foundation. The photovoltaic components are connected to two parallel cables via connectors, forming a complete force-bearing system that can achieve spans of 20 to 50 meters. However, compared to single-layer prestressed cable photovoltaic supports, double-layer prestressed cable photovoltaic supports have a larger span and good rigidity within the support plane, but weak out-of-plane rigidity. The force conditions at the connection between rows are more complex, and the structural nodes at the rigid support frame are more susceptible to damage under the action of axial tension and lateral tension. Therefore, a more reasonable structural form is needed to reduce the possibility of node damage and adapt to the impact of ultra-large spans and harsh conditions. Utility Model Content

[0006] The purpose of this utility model is to address the defects of the existing technology and provide a node bracket for the anchoring end of the cable structure photovoltaic beam, which improves the durability of the structure, reduces the stress impact caused by the super-large span and harsh conditions of the photovoltaic bracket, and improves the safety of the overall structure.

[0007] In order to solve the above technical problems, the utility model provides a node bracket for the anchoring end of a cable-structured photovoltaic beam, comprising a frame column, an inner connecting plate and an outer connecting plate fixedly arranged on both sides of the frame column, a middle connecting plate fixedly arranged on the top of the frame column, a first anchor bolt arranged on both sides of the middle connecting plate and the inner connecting plate, the first anchor bolt being used to fix the load-bearing cable passing through the inner connecting plate and the middle connecting plate to the middle connecting plate and the inner connecting plate, a splint being fixedly arranged on the outer connecting plate, an anchoring device being rotatably arranged on the splint, and the anchoring device being used to be fixedly connected to one end of the inclined cable.

[0008] Furthermore, one end of the load-bearing cable passes through the outer connecting plate and is fixed to the outer connecting plate by a first anchor bolt.

[0009] Furthermore, pads are provided on both sides of the middle connecting plate and the inner connecting plate, and the first anchor bolts fix the load-bearing cables through the pads.

[0010] Furthermore, the outer connecting plates, the middle connecting plates and the inner connecting plates are all fixedly connected to the frame columns by welding.

[0011] Furthermore, a second anchor bolt is rotatably provided in the clamping plate, and the anchoring device is rotatably connected to the clamping plate via the second anchor bolt.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model sets a middle connecting plate at the top of the frame column, wherein the load-bearing cables are fixedly connected by two steel plates, the middle connecting plate and the inner connecting plate, thereby enhancing the load-bearing performance of the large-span flexible photovoltaic structure node, and the inclined cables are fixedly connected by the outer connecting plate. The structure uses a total of three steel connecting plates to jointly bear the lateral load (i.e., the external load parallel to the direction of the middle connecting plate), thereby improving the durability, reducing the stress impact caused by the super-large span and harsh conditions of the photovoltaic bracket, and improving the safety of the overall structure.

[0014] 2. The utility model fixedly connects the load-bearing cables with the outer connecting plates, which is equivalent to connecting the inner connecting plates, the middle connecting plates and the outer connecting plates into one through the load-bearing cables. When the load-bearing cables are subjected to lateral loads, the outer connecting plates can also share part of the load, reducing the stress on the inner connecting plates and the middle connecting plates; the axial tension from the load-bearing cables and the oblique cables can act on the inner connecting plates, the middle connecting plates and the outer connecting plates at the same time. Since the tension directions of the load-bearing cables and the oblique cables are opposite, the tension on the inner connecting plates, the middle connecting plates and the outer connecting plates can be reduced, and the possibility of fatigue fracture of the welds due to long-term stress is reduced, thus forming a stable and reasonable double-layer cable space structure stress system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the utility model;

[0016] Figure 2 It is a top view of the utility model.

[0017] Reference numerals: base plate 1; first anchor bolt 2; inner connecting plate 3; middle connecting plate 4; outer connecting plate 5; anchoring device 6; clamping plate 7; second anchor bolt 8; load-bearing cable 9; inclined cable 10; frame column 11. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0019] like Figure 1 、 2 As shown, this embodiment provides a node bracket for the anchoring end of a cable-structured photovoltaic beam, including a frame column 11. There are two frame columns 11 in total. Inner connecting plates 3 and outer connecting plates 5 are fixedly arranged on both sides of the two frame columns 11 by welding. A middle connecting plate 4 is fixedly arranged on the top of the two frame columns 11 by welding. A plurality of load-bearing cables 9 are arranged between the two frame columns 11. The load-bearing cables 9 are used to support the photovoltaic panels above them. The ends of the load-bearing cables 9 pass through the inner connecting plate 3, the outer connecting plate 5, and the outer connecting plate 5 on the frame column 11 in sequence. Pads 1 and first anchor bolts 2 are arranged on both sides of the middle connecting plate 4 and the inner connecting plate 3. The first anchor bolt 2 is arranged on the side of the outer connecting plate 5 away from the middle connecting plate 4. The first anchor bolt 2 is used to fix the load-bearing cables 9 passing through the inner connecting plate 3, the middle connecting plate 4, and the outer connecting plate 5.

[0020] A splint 7 is fixedly provided on the side of the outer connecting plate 5 away from the middle connecting plate 4, a second anchor bolt 8 is rotatably provided in the splint 7, an anchoring device 6 is rotatably provided on the second anchor bolt 8, one end of the anchoring device 6 is connected to a cable-stayed cable 10, and the end of the cable-stayed cable 10 away from the anchoring device 6 is fixed in the concrete foundation.

[0021] In this embodiment, the frame columns 11 , the inner connecting plates 3 , the outer connecting plates 5 , and the outer connecting plates 5 are all made of steel structures.

[0022] It can be understood that the load-bearing cable 9 will be subjected to axial tension under the action of its own weight and the gravity of the photovoltaic panel, and the axial tension is transmitted to the inner connecting plate 3, the middle connecting plate 4, and the outer connecting plate 5. The inner connecting plate 3, the middle connecting plate 4, and the outer connecting plate 5 work together to improve the stability of the load-bearing cable 9, and under the action of the inclined cable 10, the inclined cable 10 transmits the reverse tension to the outer connecting plate 5, which can offset part of the axial tension of the load-bearing cable 9, reduce the tension on the inner connecting plate 3, the middle connecting plate 4, and the outer connecting plate 5, and prevent fatigue damage at the welds with the frame column 11; when the photovoltaic panel is subjected to lateral wind loads, the inner connecting plate 3, the middle connecting plate 4, and the outer connecting plate 5 can also work together to improve the stability of the load-bearing cable 9, and under the action of the inclined cable 10, the lateral force on the inner connecting plate 3, the middle connecting plate 4, and the outer connecting plate 5 can also be reduced. Therefore, the node bracket of this embodiment forms a stable and reasonable force system, improves the durability of the overall structure, and reduces the force impact caused by the ultra-large span and harsh conditions of the photovoltaic bracket.

[0023] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A node bracket for the anchoring end of a photovoltaic beam of a cable structure, characterized in that: The invention comprises a frame column (11), an inner connecting plate (3) and an outer connecting plate (5) are fixedly arranged on both sides of the frame column (11), a middle connecting plate (4) is fixedly arranged on the top of the frame column (11), first anchor bolts (2) are arranged on both sides of the middle connecting plate (4) and the inner connecting plate (3), the first anchor bolts (2) are used to fix the load-bearing cable (9) passing through the inner connecting plate (3) and the middle connecting plate (4) to the middle connecting plate (4) and the inner connecting plate (3), a clamping plate (7) is fixedly arranged on the outer connecting plate (5), an anchoring device (6) is rotatably arranged on the clamping plate (7), and the anchoring device (6) is used to be fixedly connected to one end of the inclined cable (10).

2. The node bracket for the anchoring end of the cable structure photovoltaic beam according to claim 1, characterized in that: One end of the load-bearing cable (9) passes through the outer connecting plate (5) and is fixed to the outer connecting plate (5) by a first anchor bolt (2).

3. The node bracket for the anchoring end of the photovoltaic beam of the cable structure according to claim 1 or 2, characterized in that: Pads (1) are provided on both sides of the middle connecting plate (4) and the inner connecting plate (3), and the first anchor bolts (2) are fixed to the load-bearing cables (9) via the pads (1).

4. The node bracket for the anchoring end of the photovoltaic beam of the cable structure according to claim 1 or 2, characterized in that: The outer connecting plate (5), the middle connecting plate (4) and the inner connecting plate (3) are all fixedly connected to the frame column (11) by welding.

5. The node bracket for the anchoring end of the photovoltaic beam of the cable structure according to claim 1 or 2, characterized in that: A second anchor bolt (8) is rotatably arranged in the clamping plate (7), and the anchoring device (6) is rotatably connected to the clamping plate (7) via the second anchor bolt (8).

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