Main cable node of middle stand column of photovoltaic flexible support

Abstract

The utility model discloses a main cable node of a middle stand column of a photovoltaic flexible support, belongs to the technical field of photovoltaic flexible supports, and solves the technical problems that at present, a main cable and the middle stand column are prone to abrasion, and the service life of the main cable is shortened. The device comprises a connecting plate connected with a middle stand column cross beam, the connecting plate is connected with a deflection device, the deflection device comprises a frame connected with the connecting plate, a cable penetrating hole for a main cable to penetrate through is formed in the frame, the cable penetrating hole is of a structure with the small middle and the two large ends, and the inner wall of the cable penetrating hole is in smooth transition from the middle to the two ends through arc-shaped faces. And rope clamps are locked on the main ropes on the two sides of the frame respectively. The deflection device slows down the break angle of the main cable, enables load to be evenly transited, avoids local large deformation of the middle stand column beam structure, limits displacement of the main cable in the vertical direction and in the middle stand column beam direction, meanwhile limits displacement of the main cable in the extending direction through the rope clamp, reduces abrasion of the main cable, and improves service life of the main cable. And the prestress loss in the main cable tensioning process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic flexible brackets, and more specifically, to a main cable node of a central column of a photovoltaic flexible bracket. Background Art

[0002] In recent years, with the development and construction of photovoltaic power stations, the construction of photovoltaic power stations has moved towards remote areas. Photovoltaic flexible brackets are widely used in the construction of photovoltaic power stations in special terrains such as mountainous areas, lakes and offshore areas due to their advantages such as large span, high clearance and few pile foundations. Photovoltaic flexible brackets mainly include foundations, end columns, middle columns, side anchor structures, main cables and inter-row stability structures. The steel strands are used as the main cables, and both ends are anchored on the end columns. The end columns connect the main cables and the side anchor structures, and the side anchor structures transfer the load to the foundation. In order to improve the utilization rate of land, the main cables of photovoltaic flexible brackets are generally longer, and middle columns are set between the end columns on both sides to support and fix the main cables.

[0003] At present, the main cables are mostly fixed directly on the middle column support structure with locks. However, under complex terrain conditions, the middle column is subject to compression, tension and lateral force. When the elevation difference between adjacent middle columns is large, the main cable has a large angle at the fixed node. After the photovoltaic modules are installed, the angle increases again. The main cable and the middle column are prone to wear, which reduces the service life of the main cable. At the same time, unbalanced horizontal forces are generated on both sides of the main cable extension direction. The top structure of the middle column is prone to deformation due to force, and the sliding of the main cable cannot be limited. Utility Model Content

[0004] The technical problem to be solved by the utility model is to address the above-mentioned deficiencies in the prior art, and the purpose of the utility model is to provide a main cable node of the middle column of a photovoltaic flexible bracket that can prevent wear between the main cable and the middle column.

[0005] The technical solution of the utility model is: a main cable node of the middle column of a photovoltaic flexible bracket, including a connecting plate connected to the crossbeam of the middle column, the connecting plate is connected to a deflection device, the deflection device includes a frame connected to the connecting plate, and the frame is provided with a cable hole for the main cable to pass through, the cable hole is a structure that is small in the middle and large at both ends, and the inner wall of the cable hole smoothly transitions from the middle to the two ends through an arc surface, and the main cables on both sides of the frame are respectively locked with rope clamps.

[0006] As a further improvement, the cable passing hole is a square hole.

[0007] Furthermore, the four inner walls of the cable-through hole are all cylindrical surfaces.

[0008] Furthermore, the connecting plate is locked on the top or bottom of the middle column crossbeam by means of locking bolts.

[0009] Furthermore, the middle column crossbeam is an I-beam, and one side of the connecting plate connected to the I-beam is locked with the locking bolt through a first nut, and the other side of the I-beam is locked with the locking bolt through a second nut and a first double nut.

[0010] Furthermore, the connecting plate and the frame are connected by welding, riveting or bolts.

[0011] Furthermore, an adjustment block for adjusting the horizontality of the frame is provided between the connecting plate and the frame.

[0012] Furthermore, the adjustment block is a wedge-shaped structure, and the wedge angle of the adjustment block is equal to the inclination angle of the middle column crossbeam.

[0013] Furthermore, the adjusting block is welded to the connecting plate and the frame.

[0014] Furthermore, the rope clamp includes a U-shaped piece and a buckle that closes the open end of the U-shaped piece.

[0015] Beneficial Effects

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The utility model reduces the bending angle of the main cable through the deflection device, makes the load transition evenly, avoids the local large deformation of the middle column beam structure, and limits the displacement of the main cable in the vertical direction and the middle column beam direction. At the same time, the displacement of the main cable in the extension direction is limited by the rope clamp, which reduces the wear of the main cable and the prestress loss in the process of tensioning the main cable.

[0018] 2. The utility model provides an adjustment block for adjusting the horizontality of the frame to adapt to the inclination angle of the middle support beam at different angles, ensure the safety and stability of the main cable node, and adapt to the compression, tension and lateral force of the middle column caused by various reasons. It is beneficial to the application of the photovoltaic flexible support structure system under complex terrain conditions and has strong promotion and practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the front view of the utility model installed on the top of the middle column beam;

[0020] Figure 2 This is a three-dimensional diagram of the utility model installed on the top of the middle column beam;

[0021] Figure 3 for Figure 1 The enlarged view of point A in the middle;

[0022] Figure 4 This is the front view of the utility model installed at the bottom of the middle column beam;

[0023] Figure 5 This is a three-dimensional diagram of the utility model installed at the bottom of the middle column beam;

[0024] Figure 6 It is a front view of the deflection device in the utility model;

[0025] Figure 7 It is a three-dimensional diagram of the deflection device in the utility model;

[0026] Figure 8 This is a three-dimensional diagram of the middle column beam;

[0027] Fig. 9 This is the front view of the rope clamp in the utility model;

[0028] Fig.10 It is a three-dimensional diagram of the rope clamp in the utility model.

[0029] Among them: 1-middle column crossbeam, 2-connecting plate, 3-frame, 4-main cable, 5-rope hole, 6-arc surface, 7-rope clamp, 8-locking bolt, 9-first nut, 10-second nut, 11-first double nut, 12-adjusting block, 13-U-shaped part, 14-clip, 15-second double nut, 16-middle column, 17-installation hole. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0031] See also Figures 1 to 10 A main cable node of a middle column of a photovoltaic flexible support includes a connecting plate 2 connected to a middle column cross beam 1, the middle column cross beam 1 is located at the top of the middle column 16, the connecting plate 2 is connected to a deflection device, the deflection device includes a frame 3 connected to the connecting plate 2, a cable hole 5 for a main cable 4 to pass through is provided in the frame 3, the cable hole 5 is a structure that is small in the middle and large at both ends, and the inner wall of the cable hole 5 smoothly transitions from the middle to both ends through an arc surface 6, and the main cables 4 on both sides of the frame 3 are respectively locked with rope clamps 7.

[0032] The curved surface 6 of the deflection device reduces the bending angle of the main cable 4, makes the load transition even, avoids large local deformation of the structure of the middle column beam 1, and limits the displacement of the main cable in the vertical direction and the middle column beam direction. At the same time, the rope clamps 7 on both sides limit the displacement of the main cable 4 in the extension direction, reduces the wear of the main cable 4, and reduces the prestress loss during the tensioning of the main cable 4.

[0033] Specifically, the cable hole 5 is a square hole. Preferably, the four inner walls of the cable hole 5 are all cylindrical surfaces, that is, the frame 3 is cut and welded by four semi-cylinders, and the main cable 4 passes through its hole, and the arc surface makes the transition of the main cable 4 more natural.

[0034] The middle column cross beam 1 is provided with a mounting hole 17. Figure 1 , Figure 2 As shown, the connecting plate 2 is locked on the top of the middle column beam 1 by means of locking bolts 8 passing through the mounting holes 17; or, as shown Figure 4 , Figure 5 As shown, the connecting plate 2 is locked to the bottom of the middle column cross beam 1 by means of locking bolts 8 passing through the mounting holes 17 .

[0035] In this embodiment, the middle column crossbeam 1 is an I-beam, and one side of the connecting plate 2 connected to the I-beam is locked with the first nut 9 and the locking bolt 8, and the other side of the I-beam is locked with the second nut 10 and the first double nut 11 and the locking bolt 8 to ensure the stability of the locking.

[0036] In one embodiment, the connection plate 2 and the frame 3 are connected by welding, riveting or bolts.

[0037] In one embodiment, in practice, the middle column cross beam 1 is installed at the top of the middle column 16 according to the terrain, and the middle column cross beam 1 may be inclined. At this time, an adjustment block 12 for adjusting the horizontality of the frame 3 is provided between the connecting plate 2 and the frame 3, that is, the frame 3 is installed in a horizontal state by placing the adjustment block 12. It can adapt to the inclination of the middle support cross beam at different angles, ensure the safety and stability of the main cable node, and adapt to the compression, tension and lateral force of the middle column caused by various reasons, which is conducive to the application of the photovoltaic flexible support structure system under complex terrain conditions, and has strong promotion and practical application value.

[0038] Preferably, the adjustment block 12 is a wedge-shaped structure, and the wedge angle of the adjustment block 12 is equal to the inclination angle of the middle column beam 1. Figure 6 As shown, the adjusting block 12 is mounted on the connecting plate 2, and the top surface of the adjusting block 12 is a horizontal surface. The adjusting block 12 is welded to the connecting plate 2 and the frame 3 to ensure the connection strength between the adjusting block 12 and the connecting plate 2 and the frame 3.

[0039] The rope clamp 7 includes a U-shaped part 13 and a buckle 14 that closes the open end of the U-shaped part 13. A semicircular groove is provided on one side of the buckle 14. A clamping hole for clamping the main rope 4 is formed between the semicircular groove and the U-shaped part 13. A threaded section is provided at the open end of the U-shaped part 13, which is locked by a second double nut 15 to lock the main rope 4 in the rope clamp 7.

[0040] The above are only preferred implementations of the utility model. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the utility model, which will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A main cable node of a central column of a photovoltaic flexible support, comprising a connecting plate (2) connected to a central column crossbeam (1), characterized in that: The connecting plate (2) is connected to a deflection device, which comprises a frame (3) connected to the connecting plate (2), wherein a cable hole (5) for a main cable (4) to pass through is provided in the frame (3), wherein the cable hole (5) is a structure with a small middle portion and large ends, and the inner wall of the cable hole (5) smoothly transitions from the middle portion to both ends through an arc surface (6), and the main cables (4) on both sides of the frame (3) are respectively locked with rope clamps (7).

2. The main cable node of the middle column of a photovoltaic flexible support according to claim 1 is characterized in that: The cable passing hole (5) is a square hole.

3. The main cable node of the middle column of a photovoltaic flexible support according to claim 2 is characterized in that: The four inner walls of the cable-through hole (5) are all cylindrical surfaces.

4. The main cable node of the middle column of a photovoltaic flexible support according to claim 1 is characterized in that: The connecting plate (2) is locked on the top or bottom of the middle column crossbeam (1) by means of locking bolts (8).

5. The main cable node of the middle column of a photovoltaic flexible support according to claim 4 is characterized in that: The middle column cross beam (1) is an I-beam, and one side of the connecting plate (2) connected to the I-beam is locked with the locking bolt (8) via a first nut (9), and the other side of the I-beam is locked with the locking bolt (8) via a second nut (10) and a first double nut (11).

6. The main cable node of the middle column of a photovoltaic flexible support according to claim 1 is characterized in that: The connecting plate (2) and the frame (3) are connected by welding, riveting or bolts.

7. A main cable node of a central column of a photovoltaic flexible support according to any one of claims 1 to 6, characterized in that: An adjustment block (12) for adjusting the horizontality of the frame (3) is provided between the connecting plate (2) and the frame (3).

8. The main cable node of the middle column of the photovoltaic flexible support according to claim 7 is characterized in that: The adjustment block (12) is a wedge-shaped structure, and the wedge angle of the adjustment block (12) is equal to the inclination angle of the middle column crossbeam (1).

9. The main cable node of the middle column of the photovoltaic flexible support according to claim 7, characterized in that: The adjusting block (12) is welded to the connecting plate (2) and the frame (3).

10. The main cable node of the middle column of a photovoltaic flexible support according to claim 1, characterized in that: The rope clamp (7) comprises a U-shaped piece (13) and a buckle (14) for closing the open end of the U-shaped piece (13).

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