Fixed adjustable photovoltaic support with composite protective layer

Abstract

The utility model discloses a fixed adjustable photovoltaic support with a composite protective layer, which comprises a main beam, the main beam is hinged on a front upright post and an inclination angle support rod, the other end of the inclination angle support rod is hinged with a sliding block, the sliding block is supported on a cross beam in a sliding manner, and the cross beam is fixedly arranged on the front upright post and a rear upright post; a screw rod support is further fixedly mounted on the cross beam, a polished rod section of the screw rod is rotatably supported on the screw rod support, and a threaded section of the screw rod penetrates through a screw hole in the sliding block and extends forwards; the profile surfaces of the main beams, the inclination angle supporting rods, the front stand columns, the rear stand columns and the cross beams are plated with corrosion-resistant alloy layers, and the corrosion-resistant alloy layers are covered with erosion-resistant coatings. And a driving wheel or a rocking handle is mounted at the polish rod extending end of the screw rod. A sliding clamping block is fixedly installed on the polished rod section of the screw rod, and the sliding clamping block is rotatably supported on the screw rod support. The photovoltaic support not only can adjust the elevation angle of the photovoltaic module, but also has double effects of corrosion resistance and erosion resistance.

Description

Technical Field

[0001] This utility model relates to solar photovoltaic power generation devices, and more particularly to structural improvements of fixed adjustable solar photovoltaic power generation brackets. Background Technology

[0002] Solar photovoltaic (PV) power generation brackets are classified into fixed brackets and tracking brackets based on their ability to track the sun's rotation. While tracking brackets can increase power generation, they require power, lack stability, and have high operating costs. Ordinary fixed brackets, although simple in structure and inexpensive, have low power generation efficiency. Fixed adjustable brackets, on the other hand, can adjust the tilt angle of PV modules according to the changes in the solar altitude angle throughout the year, combining the advantages of both high power generation efficiency and low operating costs, and have thus gained widespread attention in the industry.

[0003] Photovoltaic brackets are always exposed to the outdoor environment, and are not only subject to wind, sun and rain, and the erosion of natural climate such as ultraviolet rays, but also to the erosion and damage caused by wind, sand, strong winds and dust. Especially when photovoltaic brackets are in humid, high salinity and alkalinity atmospheres, as well as desert environments, the corrosion resistance and erosion resistance of photovoltaic brackets are particularly important. These performance indicators directly affect the stable and long-term operation and service life of photovoltaic brackets.

[0004] Currently, most photovoltaic (PV) brackets are constructed from steel profiles or galvanized steel profiles. While these profiles possess a certain degree of corrosion resistance, their actual service life is generally only around 10 years, which cannot meet the requirements for the long-term stable operation of PV power plants. The applicant's invention patent "An Erosion-Resistant and UV-Resistant PV Bracket, Coating Composition and Preparation Method Thereof," applied for and granted on December 30, 2022 (patent number: 202211742278.7), improves the surface wear resistance, impact resistance, and UV resistance of the bracket by coating the surface of the bracket profile with an erosion-resistant and UV-resistant coating composition. Although this invention patent achieves good surface erosion resistance, its corrosion resistance is insufficient in actual operation. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a fixed adjustable photovoltaic bracket with a composite protective layer, which can not only adjust the height angle of the photovoltaic module to improve the power generation efficiency, but also has the dual effect of corrosion resistance and erosion resistance.

[0006] To solve the above-mentioned technical problems, the present invention provides a fixed adjustable photovoltaic bracket with a composite protective layer, comprising a main beam hinged to a front column and an angled strut, the other end of which is hinged to a sliding block, the sliding block being slidably supported on a crossbeam, the crossbeam being fixedly installed on the front and rear columns; a screw support is also fixedly installed on the crossbeam, the smooth section of the screw being rotatably supported on the screw support, and the threaded section of the screw extending forward through a screw hole on the sliding block; the profile surfaces of the main beam, angled strut, front column, rear column, and crossbeam are coated with a corrosion-resistant alloy layer, and an anti-erosion coating is applied to the corrosion-resistant alloy layer.

[0007] In the above structure, one end of the tilting strut is hinged to the main beam, and the other end is hinged to a sliding block. The threaded section of the screw and the screw hole passing through the sliding block form a screw-nut pair. The screw-nut pair drives the sliding block to move along the crossbeam, thereby driving the tilting strut. The movement of the tilting strut changes the tilt angle of the photovoltaic module. This structure is stable and reasonable, effectively improving the power generation efficiency of the photovoltaic power generation system. Furthermore, because a corrosion-resistant alloy layer is coated on the surface of the profile, and an anti-erosion coating is also coated on the corrosion-resistant alloy layer, a dual protective structure of corrosion resistance and anti-erosion is formed. This significantly improves the corrosion resistance of the photovoltaic bracket, making it perform better in harsh environments. The anti-erosion coating not only enhances the resistance to strong airflow, sandstorms, and ultraviolet radiation, but also protects the corrosion-resistant alloy layer. This gives the photovoltaic bracket of this invention particularly superior corrosion resistance, enabling it to maintain stability, durability, and long lifespan in harsher and more complex environments.

[0008] Preferably, a drive wheel or a crank handle is mounted on the extended end of the screw. The drive wheel is a sprocket, gear, or worm gear. This allows for convenient centralized or individual adjustment of the tilt angle of the photovoltaic modules to achieve higher power generation efficiency.

[0009] Preferably, a sliding block is fixedly installed on the smooth section of the screw, and the sliding block is rotatably supported on the screw support. The sliding block is slidably supported in the groove of the crossbeam; the screw support is fixedly installed on the crossbeam by a support screw. The structure is simple, and the adjustment is reliable and stable.

[0010] Preferably, the crossbeam is a U-shaped steel, and the front column, rear column, main beam, and inclined strut are round steel tubes. Using steel structural components not only provides high strength and load-bearing capacity but also facilitates processing and on-site installation.

[0011] Preferably, the corrosion-resistant alloy layer is a magnesium-aluminum-zinc alloy coating, with an anti-erosion coating applied over it. The corrosion-resistant alloy layer comprises an aluminum-magnesium alloy coating and a zinc coating. The aluminum-magnesium alloy coating is applied to the profile surface, the zinc coating is applied over the aluminum-magnesium alloy coating, and the anti-erosion coating is applied over the zinc coating. Using a magnesium-aluminum-zinc alloy coating, or a combination of both, as the corrosion-resistant alloy layer provides superior corrosion resistance, allowing for prolonged use in harsh environments. It also offers significant advantages in weather resistance and formability. Profiles with this coating can be directly cut and used without additional surface treatment such as painting, making on-site installation faster.

[0012] Furthermore, photovoltaic modules are installed on the main beam via purlins. One end of the horizontally arranged crossbeam is fixedly connected to the front column, and the other end is fixedly connected to the rear column. This structure is reasonable and helps to enhance the structural rigidity of the support. Attached Figure Description

[0013] The following detailed description of the fixed adjustable photovoltaic bracket with composite protective layer of this utility model, in conjunction with the accompanying drawings and specific embodiments, is provided in further detail.

[0014] Figure 1 This is a schematic diagram of a specific embodiment of the fixed adjustable photovoltaic bracket with a composite protective layer of this utility model;

[0015] Figure 2 yes Figure 1 Enlarged view of the drive structure of the mid-angle strut;

[0016] Figure 3 yes Figure 1 Cross-sectional structural diagram of the central crossbeam;

[0017] Figure 4 yes Figure 1 Cross-sectional structural diagram of section A-A;

[0018] Figure 5 yes Figure 1 Sectional structure diagram of section B-B;

[0019] Figure 6 yes Figure 1 A diagram illustrating one embodiment of the surface structure of the support profile;

[0020] Figure 7 yes Figure 1 Another embodiment of the surface structure of the support profile is shown in the figure.

[0021] Figure 8 yes Figure 1 Front view of the screw support;

[0022] Figure 9 yes Figure 8 Top view;

[0023] Figure 10 yes Figure 8 The left view;

[0024] Figure 11 yes Figure 1 Cross-sectional structural diagram of the sliding block;

[0025] Figure 12 yes Figure 11 Top view;

[0026] Figure 13 yes Figure 11 The left view.

[0027] In the diagram, 1—rear column, 2—crossbeam, 3—front column, 4—front column hinge support, 5—photovoltaic module, 6—purlin, 7—main beam, 8—strut hinge support, 9—tilt strut, 10—screw, 11—sliding block, 12—top cover, 13—sliding block, 14—drive wheel, 15—screw support, 16—support bolt, 17—magnesium-aluminum-zinc alloy layer, 18—anti-erosion coating, 19—aluminum-magnesium alloy coating, 20—zinc coating. Detailed Implementation

[0028] like Figure 1 , Figure 2 The fixed adjustable photovoltaic support with a composite sheath shown includes a main beam 7, on which several photovoltaic modules 5 are fixedly mounted via several purlins 6. The front part of the main beam 7 is hinged to the top of the front column 3, and the rear part of the main beam 7 is hinged to one end of an angled strut 9. The other end of the angled strut 9 is hinged to the top of a sliding block 11. Figure 3 The cross section of beam 2 shown is a U-shaped profile. For example... Figure 4 As shown, the lower part of the sliding block 11 is slidably disposed in the groove of the crossbeam 2. A threaded hole is provided on the sliding block 11, and the center line of the threaded hole is consistent with the sliding direction of the sliding block 11. The threaded section of the screw 10 is screwed through the threaded hole on the sliding block 11 and extends forward. The threaded section of the screw 10 and the threaded hole of the sliding block 11 constitute a screw and nut pair.

[0029] like Figure 5As shown, a sliding block 13, made of nylon, is fixedly installed on the smooth section of the screw 10 by a radially screwed screw. The sliding block 13 is movably engaged in the groove of the screw support 15. A top cover 12 is also fixedly installed on the groove of the screw support 15 to enhance the rigidity and load-bearing capacity of the screw support 15. Furthermore, the smooth end of the screw 10 can extend to both ends through the notch in the groove wall of the screw support 15. Because the sliding block 13 is movably engaged in the groove of the screw support 15, the screw support 15 prevents the sliding block 13 from moving axially and allows it to rotate only within its groove. The lower end of the screw support 15 is inserted into the slot of the crossbeam 2, and the screw support 15 is fixedly installed to the rear end of the crossbeam 2 by the support screw 16. A sprocket 14 for driving the screw rotation is installed on the rear extended end of the bare section of the screw 10. In addition to the sprocket 14, the drive wheel on the screw 10 can also be a gear or worm gear, or even a crank handle as the drive component. The screw 10 is driven to rotate by the sprocket, gear or worm gear, which in turn drives the sliding block 11 to slide on the crossbeam 10. The sliding block 11 then drives the tilting support rod 9, which in turn supports the main beam 7 to change the tilt angle of the photovoltaic module 5.

[0030] The horizontal beam 2 is set horizontally, with its front end fixedly welded to the front column 3 and its rear end fixedly welded to the top of the rear column 1. The front column 3 and the rear column 1 are then embedded in the foundation through a cement base.

[0031] The main beam 7, the inclined strut 9, the front column 3, the rear column 1, and the crossbeam 2 are all made of profiles. Specifically, the front column 3, the rear column 1, the main beam 7, and the inclined strut 9 are all made of round tubular steel, while the crossbeam 2 is made of U-shaped profiles. A corrosion-resistant alloy layer is plated on the surface of the profiles of the main beam 7, the inclined strut 9, the front column 3, the rear column 1, and the crossbeam 2. An anti-erosion coating 18 is then applied over the corrosion-resistant alloy layer. This anti-erosion coating 18 is formed using the anti-erosion and anti-ultraviolet coating composition described in the applicant's invention patent "An Anti-erosion and Anti-ultraviolet Photovoltaic Support, Coating Composition and Preparation Method Thereof" (Patent No.: 202211742278.7), which was applied for and granted on December 30, 2022. The corrosion-resistant alloy layer and the anti-erosion coating 8 constitute a double protective layer, giving the support both corrosion resistance and erosion resistance.

[0032] like Figure 6 As shown, the corrosion-resistant alloy layer on the surface of the bracket profile is a magnesium-aluminum-zinc alloy coating 17. The various metal elements in this alloy coating work synergistically to reduce the coating's wear rate and provide a barrier-like protection within the coating, greatly enhancing the corrosion resistance of the surface. The magnesium-aluminum-zinc alloy coating 17 is covered with an anti-erosion coating 18.

[0033] like Figure 7As shown, the corrosion-resistant alloy layer includes an aluminum-magnesium alloy coating 19 and a zinc coating 20. The zinc coating 20 is plated on the aluminum-magnesium alloy coating 19, and the aluminum-magnesium alloy coating 19 and the zinc coating 20 constitute the corrosion-resistant alloy layer.

[0034] like Figure 8 , Figure 9 and Figure 10 As shown, the upper part of the screw support 15 is provided with a support groove for mounting the screw 10 and the sliding block 13. A threaded hole for mounting the top cover 12 is provided at the groove opening. Two screw holes for passing through the support screw 16 are provided on the base of the screw 15.

[0035] like Figure 11 , Figure 12 and Figure 13 As shown, the upper part of the sliding block 11 is provided with two ear plates, which are provided with hinge pin holes. A threaded hole for screwing the screw 10 is provided in the middle of the sliding block 11. The threaded hole is perpendicular to the pin hole on the ear plate. The lower end of the sliding block 11 has an inverted "T" shape structure, which is slidably engaged in the groove of the crossbeam 2.

[0036] The above are some preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Many improvements and modifications can be made without departing from the basic principles of the present invention, and all such improvements and modifications fall within the protection scope of the present invention.

Claims

1. A fixed adjustable photovoltaic support with a composite sheath, comprising a main beam (7), characterized in that: The main beam (7) is hinged to the front column (3) and the angled brace (9). The other end of the angled brace (9) is hinged to the sliding block (11). The sliding block (11) is slidably supported on the crossbeam (2). The crossbeam (2) is fixedly installed on the front column (3) and the rear column (1). A screw support (15) is also fixedly installed on the crossbeam (2). The smooth section of the screw (10) is rotatably supported on the screw support (15). The threaded section of the screw (10) extends forward through the screw hole on the sliding block (11). The profile surfaces of the main beam (7), the angled brace (9), the front column (3), the rear column (1), and the crossbeam (2) are coated with a corrosion-resistant alloy layer, and an anti-erosion coating (18) is applied to the corrosion-resistant alloy layer.

2. The fixed adjustable photovoltaic bracket with a composite sheath according to claim 1, characterized in that: The screw (10) has a drive wheel (14) or a crank handle installed at its protruding end.

3. The fixed adjustable photovoltaic bracket with a composite sheath according to claim 2, characterized in that: The drive wheel (14) is a sprocket, gear, or worm gear.

4. The fixed adjustable photovoltaic bracket with a composite sheath according to claim 1, characterized in that: The smooth section of the screw (10) is fixedly equipped with a sliding block (13), which is rotatably supported on the screw support (15).

5. The fixed adjustable photovoltaic bracket with a composite sheath according to claim 1, characterized in that: The sliding block (11) is slidably supported in the groove of the crossbeam (2); the screw support (15) is fixedly installed on the crossbeam (2) by the support screw (16).

6. The fixed adjustable photovoltaic bracket with a composite sheath according to claim 1, characterized in that: The crossbeam (2) is a U-shaped steel, and the front column (3), rear column (1), main beam (7) and inclined strut (9) are round steel tubes.

7. The fixed adjustable photovoltaic bracket with a composite sheath according to claim 1, characterized in that: The corrosion-resistant alloy layer is a magnesium-aluminum-zinc alloy coating (17), and an anti-erosion coating (18) is applied to the magnesium-aluminum-zinc alloy coating.

8. The fixed adjustable photovoltaic bracket with a composite sheath according to claim 1, characterized in that: The corrosion-resistant alloy layer includes an aluminum-magnesium alloy coating (19) and a zinc coating (20). The aluminum-magnesium alloy coating (19) is plated on the surface of the profile, the zinc coating (20) is plated on the aluminum-magnesium alloy coating (19), and the anti-erosion coating (18) is applied to the zinc coating (20).

9. The fixed adjustable photovoltaic bracket with a composite sheath according to claim 1, characterized in that: Photovoltaic modules (5) are installed on the main beam (7) via purlins (6). One end of the horizontally arranged crossbeam (2) is fixedly connected to the front column (3), and the other end of the crossbeam (2) is fixedly connected to the rear column (1).

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