Flexible support tensioning system capable of applying prestress

Abstract

The utility model discloses a flexible support tensioning system capable of applying prestress, belongs to the technical field of photovoltaic supports, and effectively solves the problems that in the prior art, an operator is difficult to pre-tighten a steel wire rope through manpower, and the pre-tightening can be completed by means of a tensioning machine. The flexible support tensioning system capable of applying the prestress comprises a turn buckle with the adjustable size and a fixing device. One end of the turn buckle is connected with a steel wire rope needing to be tensioned, and the other end of the turn buckle is fixed to the flexible support middle stand column through a fixing device. The adjustable characteristic of the turn buckle is utilized, the turn buckle is arranged between the steel wire rope and the flexible support middle stand column, when the steel wire rope is tensioned, only the size of the turn buckle needs to be adjusted, small prestress can be applied to the steel wire rope, operation is easy, and extra mechanical equipment is not needed.

Description

Technical Field

[0001] The embodiments of the utility model belong to the technical field of photovoltaic brackets, and particularly relate to a flexible bracket tensioning system capable of applying prestress. Background Art

[0002] In recent years, flexible photovoltaic brackets have been more and more widely used in mountain photovoltaic, fish pond photovoltaic and desert photovoltaic due to their characteristics of large span and good terrain adaptability. The flexible photovoltaic bracket replaces the purlin of the traditional photovoltaic bracket with galvanized steel strands. Although it increases the adaptability of the bracket to complex terrains, due to the light self-weight and large span of the steel strands themselves, the wind effect is obvious. Therefore, the key to the design of the flexible photovoltaic bracket lies in its wind resistance design.

[0003] At present, most designers use reverse-curved steel wires as wind-resistant cables to prevent large displacements of the steel strands of the flexible bracket under the action of wind loads. During the construction and installation process, the steel wires often only need to be in a tensioned state and do not require a large initial tension, because applying a large initial tension will increase the construction cost of the flexible bracket foundation, and at the same time, the tensioned steel wires can achieve a good wind protection effect.

[0004] However, it is impossible to tension the steel wires only by manpower and usually a tensioning machine is needed to complete it. The construction environment of the flexible bracket is complex. If the operator tensions the steel wires through mechanical equipment, the construction is very difficult and the quality is also difficult to guarantee. Summary of the Invention

[0005] The purpose of the embodiments of the utility model is to provide a flexible bracket tensioning system capable of applying prestress, which is used to solve the problem that it is very difficult for operators to pre-tighten steel wires by manpower in the prior art and usually a tensioning machine is needed to complete it.

[0006] The technical solution adopted by the embodiments of the utility model is that a flexible bracket tensioning system capable of applying prestress includes an adjustable-size turnbuckle and a fixing device; one end of the turnbuckle is connected to the steel wire to be tensioned, and the other end of the turnbuckle is fixed on the middle column of the flexible bracket through the fixing device.

[0007] Further, the fixing device includes a ring bolt, and the ring bolt includes a connected ring and a bolt; the ring is connected to the turnbuckle, and the bolt is fixed on the middle column of the flexible bracket.

[0008] Further, the turnbuckle is a UU-type open lock screw with pins at both ends. One end of the UU-type open lock screw is connected to the steel wire through a pin, and the other end of the UU-type open lock screw is connected to the ring through a pin.

[0009] Further, it further includes a hoop fixed to the middle column of the flexible bracket. The hoop is provided with an installation hole, and the bolt is fixed to the hoop through the installation hole.

[0010] Further, it further includes a flexible bracket load-bearing cable, a flexible bracket component cable for placing photovoltaic modules, and a triangular support frame; the flexible bracket component cable, the flexible bracket load-bearing cable, and the steel wire rope are fixed between two middle columns of the flexible bracket through the triangular support frame.

[0011] Further, the triangular support frame is arranged upside down, including a first corner at the lowest position and two second corners; the flexible bracket load-bearing cable is fixed at the first corner, there are two steel wire ropes and two flexible bracket component cables respectively, the two steel wire ropes are respectively fixed at the two second corners, and the two flexible bracket component cables are respectively fixed at the two second corners.

[0012] Further, the triangular support frame is arranged at the midpoint of two middle columns of the flexible bracket.

[0013] The beneficial effect of the present utility model is that: by utilizing the adjustable characteristic of the turnbuckle, the turnbuckle is arranged between the steel wire rope and the middle column of the flexible bracket. When the steel wire rope is tensioned, only by adjusting the size of the turnbuckle can a small prestress be applied to the steel wire rope. The operation is simple and no additional mechanical equipment is required. Description of the Drawings

[0014] Figure 1 is the structural diagram of the flexible bracket provided by the embodiment of the present utility model;

[0015] Figure 2 is the structural diagram of the flexible bracket tensioning system capable of applying prestress provided by the embodiment of the present utility model;

[0016] Figure 3 is provided by the embodiment of the present utility model Figure 1 exploded view of the A part structure;

[0017] Figure 4 is the structural diagram of the fixing device provided by the embodiment of the present utility model.

[0018] Reference numerals: 1, middle column of the flexible bracket; 2, steel wire rope; 3, flexible bracket load-bearing cable; 4, flexible bracket component cable; 5, photovoltaic module; 6, triangular bracket; 61, first corner; 62, second corner; 7, turnbuckle; 71, pin shaft; 8, fixing device; 81, eyebolt; 82, eyebar; 83, bolt; 9, hoop; 91, installation hole; 10, prestressed pipe column. Detailed Embodiments

[0019] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter of the present utility model is limited to the following embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. After reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings.

[0021] A prestress-applyable flexible support tensioning system provided by an embodiment of the present utility model, as Figure 2 shown, includes an adjustable-size turnbuckle 7 and a fixing device 8; one end of the turnbuckle 7 is connected to a wire rope 2 to be tensioned, and the other end of the turnbuckle 7 is fixed to a prestressed pipe column 10 of a middle column 1 of the flexible support through the fixing device 8.

[0022] The turnbuckle 7 is arranged between the wire rope 2 and the middle column 1 of the flexible support, as Figure 3 shown. When it is necessary to tension the wire rope 2, only the size of the turnbuckle 7 needs to be adjusted, and a small prestress can be applied to the flexible support. This method is simple to operate and does not require additional machinery, improving work efficiency. At the same time, the construction quality of installing the wire rope 2 as a wind-resistant cable can be controlled by checking the thread pitch of the turnbuckle, and it is easier to control the project quality. In addition, through the design of this embodiment, the cost of the anchor is saved, bringing economic benefits.

[0023] The fixing device 8 includes a lifting eye bolt 81, as Figure 4 shown. The lifting eye bolt 8 includes a connected lifting eye 82 and a bolt 83; wherein the lifting eye 82 is connected to the turnbuckle 7, and the bolt 83 is fixed to the prestressed pipe column 10 on the middle column 1 of the flexible support. The wire rope 2 can be simply fixed through the lifting eye bolt 81.

[0024] The turnbuckle 7 is a UU-type open lock screw with pins 71 at both ends. One end of the UU-type open lock screw is connected to the wire rope 2 through the pin 71, and the other end of the UU-type open lock screw is connected to the lifting eye 82 through the pin 71. In this embodiment, the end of the wire rope 2 is set as a ring shape, and the two end pins 71 respectively pass through the lifting eye 82 and the end of the wire rope 2, thereby fixing the turnbuckle 7 between the wire rope 2 and the lifting eye bolt 8. This fixing method has a simple structure and good stability.

[0025] The flexible support tensioning system further includes a hoop 9 fixed to the prestressed pipe column 1. As Figure 2 shown, in this embodiment, the hoop 9 is composed of two semi-circular hoop plates. An installation hole 91 is provided at the connection of the two hoop plates. After a bolt 83 passes through the installation hole 91, it is fixed to the hoop 9. In this way, not only can the fixing device 8 be fixed to the prestressed pipe column 1, but also the clamping tightness of the two semi-circular hoop plates is further strengthened, improving the stability of the flexible support.

[0026] As Figure 1 shown, the flexible support tensioning system further includes a flexible support load-bearing cable 3, a flexible support component cable 4 for placing photovoltaic modules, and a triangular support frame 6. The flexible support component cable 4 is fixed to the tops of the two middle columns 1 of the flexible support. The flexible support component cable 4, the flexible support load-bearing cable 3, and each component of the steel wire rope 2 are fixed between the two middle columns 1 of the flexible support through the triangular support frame 6. Each component is fixed at each corner of the triangular support frame 6, which can effectively resist the action of external wind loads and prevent the components from swinging randomly under the action of wind loads, enhancing the stability of the flexible support system.

[0027] In this embodiment, both ends of the flexible support load-bearing cable 6 are fixed at the middle positions of the tops of the two middle columns 1 of the flexible support. There are two steel wire ropes 2 and two flexible support component cables 4 respectively. Both ends of the flexible support component cable 4 are fixed at the tops of the two middle columns 1 of the flexible support. The two flexible support component cables 4 are used to support the photovoltaic module 5. Both ends of the steel wire rope 2 are fixed to the prestressed pipe column 10 through components such as turnbuckles 7.

[0028] The triangular support frame 6 is arranged upside down, in an inverted triangle. As Figure 1 shown, the triangular support frame 6 includes a first corner 61 at the lowest position and two second corners 62 at the top. The flexible support load-bearing cable 6 is fixed at the first corner 61 to prevent the inverted triangle from driving other components to fall under the action of gravity. The two steel wire ropes 2 are respectively fixed at the two second corners 62, and the two flexible support component cables 4 are respectively fixed at the two second corners 62. The triangular support frame 6 is arranged at the midpoint of the two middle columns 1 of the flexible support. By arranging it in an inverted triangle, the components can bear a relatively large lateral force relative to the vertical load, further improving the system stability.

Claims

1. A flexible support tensioning system capable of applying prestress, characterized in that It includes an adjustable-size turnbuckle and a fixing device; one end of the turnbuckle is connected to the wire rope to be tensioned, and the other end of the turnbuckle is fixed to the middle column of the flexible support through the fixing device.

2. The prestressable flexible support tensioning system according to claim 1, wherein The fixing device includes a ring bolt, and the ring bolt includes a connected ring and a bolt; the ring is connected to the turnbuckle, and the bolt is fixed to the middle column of the flexible support.

3. The prestress-applicable flexible bracket tensioning system according to claim 2, characterized in that, The turnbuckle is a UU-type open lock screw buckle with pins at both ends. One end of the UU-type open lock screw buckle is connected to the wire rope through the pin, and the other end of the UU-type open lock screw buckle is connected to the ring through the pin.

4. The prestressable flexible support tensioning system according to claim 2, characterized in that, It also includes a hoop fixed to the middle column of the flexible support. The hoop is provided with a mounting hole, and the bolt is fixed to the hoop through the mounting hole.

5. The prestress-applyable flexible bracket tensioning system according to claim 1, wherein It also includes a flexible support load-bearing cable, a flexible support component cable for placing photovoltaic modules, and a triangular support frame; the flexible support component cable, the flexible support load-bearing cable, and the wire rope are fixed between the two middle columns of the flexible support through the triangular support frame.

6. The prestress-applyable flexible support tensioning system according to claim 5, characterized in that, The triangular support frame is arranged upside down and includes a first corner at the lowest position and two second corners; the flexible support load-bearing cable is fixed at the first corner, there are two wire ropes and two flexible support component cables respectively. The two wire ropes are respectively fixed at the two second corners, and the two flexible support component cables are respectively fixed at the two second corners.

7. The prestress-applyable flexible support tensioning system according to claim 5, characterized in that, The triangular support frame is arranged at the midpoint of the two middle columns of the flexible support.

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