Flexible support structure suitable for mountainous large-slope terrain

Abstract

The flexible support structure comprises end beam supports and side anchor piles, the end beam supports are provided with supporting columns, the upper portions and the lower portions of the supporting columns are connected with end beams and the supporting piles respectively, the end beams are provided with connecting plates, the connecting plates of the end beam supports on the two sides are jointly connected with a load-bearing cable, and the load-bearing cable is connected with the side anchor piles. Photovoltaic modules are mounted on the adjacent load-bearing cables; stay cables are connected to the connecting plates in the same extension direction of the bearing cables, and the ends, away from the bearing cables, of the stay cables are connected to the side anchor piles. The supporting columns of the end beam support are vertically installed on the angular bisectors of the load-bearing cables and the stay cables, so that tension on the load-bearing cables and the stay cables can be self-balanced to the maximum degree, horizontal force borne by the end supports and the supporting columns is greatly reduced, the requirement for supporting piles is lowered, and the service life of the end supports is prolonged. And the bearing capacity of the flexible bracket structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic brackets, and in particular to a flexible bracket structure suitable for mountainous terrain with a large slope. Background Art

[0002] Photovoltaic brackets are called the "skeleton" of photovoltaic power stations. They are special structural parts designed and installed in photovoltaic power generation systems to support and fix photovoltaic modules. They are important supporting structures in photovoltaic systems. As an important supporting structure in photovoltaic systems, safety and ease of installation are its core requirements.

[0003] However, due to the particularity of the terrain, the existing mountain flexible brackets are not only inconvenient to install, but also slow in construction speed and uncontrollable in construction period. In addition, the span of the flexible bracket is greatly affected by the undulations of the terrain, and the degree of mechanization is not high, which greatly increases the labor cost. In order to install photovoltaic modules, the flexible bracket needs to arrange a large number of pile foundations to meet its load-bearing conditions, and to ensure the stability of photovoltaic modules in mountainous environments, resulting in a large amount of steel, which greatly increases its construction cost. Therefore, how to ensure the stability of the flexible bracket while reducing the amount of steel is the key. In addition, how to facilitate later inspection and operation maintenance, and even consider decommissioning and demolition, are also key contents that need to be considered when using flexible brackets in mountainous areas in the future. Utility Model Content

[0004] The purpose of the utility model is to provide a flexible support structure with a large span and applicable to complex terrains such as mountains while ensuring stability. To this end, the utility model adopts the following technical solutions:

[0005] A flexible support structure suitable for mountainous terrain with a large slope, comprises an end beam support and a side anchor pile, the end beam support is provided with a support column, the upper and lower parts of the support column are respectively connected to the end beam and the support pile, the end beam is provided with a connecting plate, the connecting plates of the end beam supports on both sides are commonly connected to the load-bearing cable, and photovoltaic modules are installed on the adjacent load-bearing cables; the connecting plates are connected with inclined cables along the same extension direction of the load-bearing cables, the ends of the inclined cables away from the load-bearing cables are connected to the side anchor piles, an angle is formed between the inclined cables and the load-bearing cables, and the end beam support is arranged on the angular bisector of the angle, so that the flexible support structure reaches a self-balancing state; a middle beam support perpendicular to the ground is arranged below the load-bearing cable, a middle beam connected to the load-bearing cable is arranged at the top of the middle beam support, a middle anchor pile is arranged at the bottom of the middle beam support, and a stabilizing cable is connected between the middle anchor pile and the middle beam.

[0006] Furthermore: the angle between the side anchor pile and the inclined cable is 75-105 degrees.

[0007] Furthermore: the support column is provided with end supports respectively connected to the two ends of the end beam.

[0008] Furthermore: a cable clamp is arranged on the middle beam, and a passage is formed between the cable clamp and the middle beam for only the load-bearing cables to pass through, so that the load-bearing cables of adjacent frames are connected together on both sides of the middle beam.

[0009] Furthermore: a square tube is provided on one side end of the center beam, and the center beam supports of two adjacent spans are connected by the square tube to form an integral structure.

[0010] Furthermore: connecting parts connected to the stabilizing cables are arranged on both sides of the center beam, so that the stabilizing cables are in a triangular stable state on the center anchor pile and the center beam.

[0011] Furthermore: a pull ring is arranged on the middle beam, a basket bolt is arranged on the top of the middle anchor pile, and ring sleeves are arranged at both ends of the stabilizing cable, and the stabilizing cable is respectively connected to the pull ring and the basket bolt through the ring sleeves.

[0012] Furthermore: the photovoltaic assembly is provided with a connection device connected to the load-bearing cable at the bottom of its frame, and the connection device is connected to the photovoltaic assemblies on adjacent sides simultaneously along the direction of the load-bearing cable.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model uses prefabricated steel as the pile foundation, which is convenient for construction and dismantling, and the mass of all components in the structure does not exceed 50kg. In this way, the support column of the end beam bracket is vertically installed on the angular bisector of the load-bearing cable and the inclined cable, so that the tension on the load-bearing cable and the inclined cable can achieve the maximum degree of self-balance, thereby greatly reducing the horizontal force borne by the end support and the support column, reducing the requirements for the support piles, and increasing the load-bearing capacity of the flexible bracket structure. In addition, the stabilizing cable in the utility model connects the middle beam and the middle anchor pile. Under the action of wind suction load and horizontal wind load, the force can be transmitted to the middle anchor pile, so that the displacement of the entire structure under the action of wind load is relatively small and the stability is strong. Therefore, while the overall structure of the utility model is guaranteed in its stability, the amount of steel used and the amount of foundation engineering can also be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a vertical layout diagram of the flexible photovoltaic support structure of the utility model;

[0016] Figure 2 This is a top view of the flexible photovoltaic support structure of the utility model;

[0017] Figure 3 It is a cross-sectional view of the end beam bracket of the utility model;

[0018] Figure 4It is a cross-sectional view of the center beam support of the utility model;

[0019] Figure 5 This is a structural diagram of the connection between the middle beam and the stabilizing cable of the utility model;

[0020] Figure 6 The utility model is a schematic diagram of the installation of photovoltaic components on the load-bearing cables.

[0021] The marks in the accompanying drawings are: 1-end beam, 2-end support, 3-support column, 4-support pile, 5-connecting plate, 6-middle beam, 7-square tube, 8-middle anchor pile, 9-side anchor pile, 10-load-bearing cable, 101-cable clamp, 11-stabilizing cable, 111-basket bolt, 112-steel wire ring, 113-clip, 114-pull ring, 12-oblique cable, 13-photovoltaic module, 14-connecting device. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0023] like Figure 1-6 As shown, a flexible support structure suitable for mountainous terrain with a large slope includes an end beam support and a side anchor pile 9, a support column 3 is arranged on the end beam support, and the upper and lower parts of the support column 3 are respectively connected to the end beam 1 and the support pile 4, the support pile 4 is used to be embedded in the mountain ground to form a pile foundation of the end beam support pre-installed on the mountain, and the support column 3 and the support pile 4 are two-part structures, and the support column 3 is installed on the support pile 4 in a post-installed manner; a connecting plate 5 is arranged above the end beam 1, and the connecting plates 5 of the end beam supports on both sides are commonly connected to the load-bearing cables 10, and photovoltaic modules 13 are installed on adjacent load-bearing cables 10; the connecting plate 5 is connected to the inclined cable 12 along the same extension direction of the load-bearing cable 10, and the inclined cable 12 is away from the load-bearing cable 10. The ends are connected to the side anchor piles 9, and an angle is formed between the inclined cable 12 and the load-bearing cable 10. The end beam bracket is arranged on the angular bisector of the angle, so that the flexible bracket structure can reach a self-balancing state and offset most of the horizontal tension; a middle beam bracket perpendicular to the ground is arranged below the load-bearing cable 10, and the middle beam bracket is used to resist wind loads and enhance the stability of the structure. A middle beam 6 connected to the load-bearing cable 10 is arranged on the top of the middle beam bracket, and a middle anchor pile 8 embedded in the mountain ground is arranged at the bottom of the middle beam bracket. A stabilizing cable 11 is connected between the middle anchor pile 8 and the middle beam 6, and the wind suction load and the force of the horizontal wind load are transmitted to the middle anchor pile 8 through the stabilizing cable 11, so as to form an overall stable constraint state under the action of wind load.

[0024] In this embodiment, the angle between the side anchor pile 9 and the inclined cable 12 is preferably about 90 degrees, and when the side anchor pile 9 is perpendicular to the inclined cable 12, the ability of the side anchor pile 9 to withstand tension reaches a maximum.

[0025] In this embodiment, the support column 3 is provided with end supports 2 respectively connected to the two ends of the end beam 1. There are two end supports 2 on the end beam bracket. The end supports 2 are welded obliquely upward on the column circumference surface of the support column 3. The two ends of the end beam 1 are simultaneously connected to the end supports 2 on both sides. At the same time, the connecting plate 5 is a triangular plate, the bottom plate of which is preferably welded to the top end surface of the end support 2, and the two side plates above the bottom plate are used to connect the load-bearing cable 10 and the inclined cable 12 respectively.

[0026] In this embodiment, a cable clamp 101 is provided on the center beam 6. The cable clamp 101 is a U-shaped structure. The vertical section of the cable clamp 101 passes through a hole opened on the center beam 6 and cooperates with a nut to form a threaded connection, so that the U-shaped cable clamp 101 can be installed on the center beam 6. A channel is formed between the bent portion of the cable clamp 101 and the upper surface of the center beam 6 for only the load-bearing cable 10 to pass through. The holes on the center beam 6 are opened on both sides thereof, so that the center beam 6 can be connected to adjacent load-bearing cables 10 at the same time.

[0027] In order to ensure the integrity of the entire photovoltaic array, the adjacent spans of the center beam brackets are connected to ensure overall stability. Among them, a square tube 7 is provided on one end of the center beam 6, and the center beam brackets of the two adjacent spans are connected through the square tube 7 to form a folded beam. The center beams 6 of the two adjacent spans are fixedly connected by the square tube 7, which can further increase the stability of the structure.

[0028] In this embodiment, connecting parts connected to the stabilizing cables 11 are arranged on both sides of the center beam 6, so that the stabilizing cables 11 are in a triangular stable state on the center anchor pile 8 and the center beam 6, thereby further improving the degree of displacement of the photovoltaic assembly 13 under the action of wind load.

[0029] In this embodiment, a pull ring 114 is provided on the center beam 6, a basket bolt 111 is provided on the top of the center anchor pile 8, and ring sleeves are provided at both ends of the stabilizing cable 11. The ring sleeves at both ends of the stabilizing cable 11 bend the stabilizing cable 11 through the steel wire ring 112, and then are fixed by a U-shaped buckle 113, so that the two ends of the stabilizing cable 11 are respectively connected to the pull ring 114 and the basket bolt 111 through the steel wire ring 112.

[0030] In this embodiment, the photovoltaic module 13 is provided with a connecting device 14 connected to the load-bearing cable 10 at the bottom of its frame, and the connecting device 14 simultaneously connects the photovoltaic modules 13 on the adjacent sides along the direction of the load-bearing cable 10. The connecting device 14 can be a cable buckle, which is completely fitted with the bottom 13 of the frame of the photovoltaic module 13 to avoid relative sliding, and can achieve a firm connection between the load-bearing cable 10 and the photovoltaic module 13. At the same time, the connecting device 14 does not need to be connected to other components except for simultaneously connecting two photovoltaic modules 13 on the load-bearing cable 10 along the extension direction of the load-bearing cable 10, so the steel consumption of the connecting device 14 can be further reduced.

[0031] At the same time, the center beam support divides the entire photovoltaic installation area in the arrangement direction of the load-bearing cables 10, and connects several photovoltaic components 13 arranged in each partition into a whole along the arrangement direction of the load-bearing cables 10 through the connecting device 14.

[0032] Based on the above, the flexible support structure supports the photovoltaic components 13 only through two load-bearing cables 10, eliminating the truss components in the traditional flexible photovoltaic support structure, greatly reducing the amount of steel used and saving costs.

[0033] In this embodiment, the overall steel structure is composed of steel sections, which are specifically described as follows: the end beam 1, the middle beam 6 and the square tube 7 are square steel tubes, the end support 2, the support column 3 and the support pile 4 are round steel tubes, the middle anchor pile 8 and the side anchor pile 9 are H-shaped steel, and the load-bearing cable 10, the stabilizing cable 11 and the inclined cable 12 are prestressed steel strands. In actual projects, construction personnel can select other types of steel sections and cables according to project needs.

[0034] At the same time, considering the low degree of mechanization in mountain construction, the mass of all components in the structure does not exceed 50kg, which is conducive to manual handling.

[0035] See also Figure 1-6 When the flexible support structure is constructed on a mountainous terrain with a large slope, the specific construction steps are as follows:

[0036] S1: According to the predetermined position and angle, the prefabricated support piles 4, the middle anchor piles 8 and the side anchor piles 9 are installed respectively by means of hole drawing, and backfilling is performed after the installation is completed;

[0037] S2: Acceptance inspection of the support piles 4, the middle anchor piles 8 and the side anchor piles 9;

[0038] S3: Perform construction preparation, weld the end beam 1, the end support 2, the support column 3 and the connecting plate 5 into a whole in advance, and then install them on the support pile 4 by welding;

[0039] S4: Install the stay cable 12, connect its two ends to the side anchor pile 9 and the connecting plate 5 respectively, and tension it to the designed cable force;

[0040] S5: Install the load-bearing cable 10, connect its two ends to the connecting plates 5 of the corresponding end beam brackets on both sides, and tension it to the designed cable force;

[0041] S6: Installing the photovoltaic assembly 13 to a predetermined position above the load-bearing cable 10 through the connecting device 14;

[0042] S7: Weld the square tube 7 between the two middle beams 6, and install the welded middle beam 6 to a predetermined position below the load-bearing cable 10, connect it through a U-shaped cable clamp 101, and then install the U-shaped pull ring 114 to the predetermined position;

[0043] S8: The two ends of the stabilizing cable 11 are bent through the steel strand ring 112 respectively, and then fixed by the U-shaped buckle 113, so as to install the stabilizing cable 11, so that the upper part of the stabilizing cable 11 is connected to the U-shaped pull ring 114, and the lower part is connected to the top of the middle anchor pile 8 through the basket bolt 111, and then tensioned to the designed cable force;

[0044] S9: Repeat steps S6-S8 until the photovoltaic array is installed.

[0045] The above embodiment is only a preferred technical solution of the present invention. Those skilled in the art should understand that the technical solutions or parameters in the embodiments can be modified or replaced without departing from the principle and essence of the present invention, and all should be included in the protection scope of the present invention.

Claims

1. A flexible support structure suitable for mountainous terrain with large slopes, characterized in that: It comprises an end beam support and a side anchor pile (9), wherein a support column (3) is arranged on the end beam support, and the upper and lower parts of the support column (3) are respectively connected to the end beam (1) and the support pile (4), and a connecting plate (5) is arranged on the end beam (1), and the connecting plates (5) of the end beam supports on both sides are commonly connected to a load-bearing cable (10), and photovoltaic modules (13) are installed on the adjacent load-bearing cables (10); the connecting plate (5) is connected to an inclined cable (12) along the same extension direction of the load-bearing cable (10), and one end of the inclined cable (12) away from the load-bearing cable (10) is connected to the side anchor pile (9), and an angle portion is formed between the inclined cable (12) and the load-bearing cable (10), and the end beam support is arranged on the angular bisector of the angle portion; A middle beam support perpendicular to the ground is arranged below the load-bearing cable (10), a middle beam (6) connected to the load-bearing cable (10) is arranged on the top of the middle beam support, a middle anchor pile (8) is arranged at the bottom of the middle beam support, and a stabilizing cable (11) is connected between the middle anchor pile (8) and the middle beam (6).

2. The flexible support structure suitable for mountainous terrain with large slopes according to claim 1, characterized in that: The angle between the side anchor pile (9) and the inclined cable (12) is 75-105 degrees.

3. The flexible support structure suitable for mountainous terrain with large slopes according to claim 1, characterized in that: The support column (3) is provided with end supports (2) respectively connected to the two ends of the end beam (1).

4. The flexible support structure suitable for mountainous terrain with a large slope according to claim 1, characterized in that: A cable clamp (101) is provided on the middle beam (6), and a passage is formed between the cable clamp (101) and the middle beam (6) for only the load-bearing cables (10) to pass through, so that adjacent load-bearing cables (10) are connected together on both sides of the middle beam (6).

5. The flexible support structure suitable for mountainous terrain with large slopes according to claim 1, characterized in that: A square tube (7) is provided on one side end of the center beam (6), and the center beam supports of two adjacent spans are connected via the square tube (7) to form an integral structure.

6. The flexible support structure suitable for mountainous terrain with a large slope according to claim 1, characterized in that: Connecting parts connected to the stabilizing cables (11) are arranged on both sides of the middle beam (6), so that the stabilizing cables (11) are in a triangular stable state on the middle anchor pile (8) and the middle beam (6).

7. The flexible support structure suitable for mountainous terrain with a large slope according to claim 1, characterized in that: A pull ring (114) is arranged on the middle beam (6), a basket bolt (111) is arranged on the top of the middle anchor pile (8), and ring sleeves are arranged at both ends of the stabilizing cable (11), and the stabilizing cable (11) is connected to the pull ring (114) and the basket bolt (111) respectively through the ring sleeves.

8. The flexible support structure suitable for mountainous terrain with a large slope according to claim 1, characterized in that: The photovoltaic assembly (13) is provided with a connection device (14) connected to the load-bearing cable (10) at the bottom of its frame, and the connection device (14) is connected to the photovoltaic assembly (13) on the adjacent side simultaneously along the direction of the load-bearing cable (10).

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