Photovoltaic support with high stability

CN119602672APending Publication Date: 2025-03-11SUZHOU OUPIN METAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411701545.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-03-11

AI Technical Summary

Technical Problem

Traditional photovoltaic brackets cannot be quickly adjusted according to the wind-receiving surface of the solar panel, resulting in large wind-receiving surfaces of the solar panels, resulting in unstable photovoltaic brackets.

Method used

A photovoltaic bracket including a rear support plate, a lifting frame, a fixing frame, a pressing plate and a front support plate is designed. The motor is controlled by a control machine to drive the threaded rod to form a threaded engagement transmission mechanism in the carriage, and quickly change the inclination angle of the solar panel to keep it parallel to the wind direction.

Benefits of technology

In strong windy weather, quickly adjust the inclination angle of the solar panels, reduce wind impact, improve the stability of the photovoltaic bracket, and enhance the connection between the foot panels and the ground through gravity extrusion of the heavy blocks.

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Abstract

The invention provides a high-stability photovoltaic support, and relates to the field of photovoltaic supports, and the high-stability photovoltaic support comprises a vertical frame and a front side supporting plate. Vertical frames are welded to the left side face and the right side face of the front side supporting plate, a containing frame is hinged to the top ends of the vertical frames, a connecting rod is hinged to the center of the lower side face of the containing frame, a sliding frame is hinged to the other end of the connecting rod, a motor is installed on the front side face of the front side supporting plate, and a threaded rod is installed on a motor shaft of the motor. Foot plates are welded to the lower side faces of the vertical frames, and weights are placed on the upper side faces of the foot plates; through arrangement of a movable threaded rod, a sliding frame, a connecting rod, a placing frame, a heavy block and a foot plate, wind impact of external strong wind on the surface of a solar panel is reduced, the bottom gravity center of the photovoltaic support is improved, and connection between the photovoltaic support and the ground is firmer and more stable; the problem that a traditional photovoltaic support cannot be rapidly adjusted according to the windward surface of a solar panel, so that the windward impact surface of the solar panel is large, and the photovoltaic support is unstable is solved.
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Description

Technical Field

[0001] The present invention belongs to the field of photovoltaic brackets, and more specifically, particularly relates to a photovoltaic bracket with strong stability. Background Art

[0002] Photovoltaic brackets are special brackets used to place, install and fix solar panels in solar photovoltaic power generation systems. They can support solar panels in a certain direction and angle so that they can fully receive sunlight. At present, traditional photovoltaic brackets are usually made of multiple groups of aluminum alloy, carbon steel or stainless steel rods connected by bolts or welding. The overall structure is relatively fixed, and the bottom of the bracket is fixed to the ground by rivets. However, in strong winds, since the solar panel is installed on the bracket with a fixed structure at a certain tilt angle, the windward surface of the solar panel cannot be adjusted quickly, resulting in the surface of the solar panel being subjected to greater wind force, causing the photovoltaic bracket to shake violently, causing the rivets to loosen from the ground, and destroying the connection structure between the photovoltaic bracket and the ground, which seriously affects the stability of the photovoltaic bracket supporting the solar panel on the ground. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a photovoltaic bracket with strong stability to solve the problem that the traditional photovoltaic bracket cannot be quickly adjusted according to the windward surface of the solar panel, resulting in a large wind impact surface of the solar panel and causing instability of the photovoltaic bracket.

[0004] The invention provides a photovoltaic bracket with strong stability, comprising a rear support plate; the left and right sides of the rear support plate are welded with sleeve columns, the front side of the sleeve columns are welded with a supporting guide rod, and the front end of the supporting guide rod is welded with a vertical frame; it also includes a lifting frame, a fixing frame, a pressing plate and a front support plate; the upper side of the lifting frame is hinged with a sliding block, the top of the sliding block is slidably connected to the inner side of the slide groove, and a placing frame is welded on the upper side of the slide groove, and a solar panel is placed on the upper side of the placing frame; the left and right sides of the front support plate are welded with a vertical frame, the top of the vertical frame is hinged with the placing frame, the center position of the lower side of the placing frame is hinged with a connecting rod, the other end of the connecting rod is hinged with the slide, the rear side of the front support plate is installed with a control machine, the front side of the front support plate is installed with a motor, a threaded rod is installed on the motor shaft of the motor, and the rear end of the threaded rod is rotatably connected with the rear support plate; the left and right sides of the vertical frame are provided with convex plates, and the lower side of the vertical frame is welded with a foot plate.

[0005] In at least some embodiments, the placement rack is a groove structure that runs through the front and back, and a solar panel is placed inside the groove structure of the placement rack. Two groups of long through grooves that run through the top and bottom are provided on the upper side of the placement rack near the left side and the right side. A first clamping bolt is inserted into each group of the long through grooves of the placement rack, and a first clamping nut is engaged and connected to the outer side of the first clamping bolt.

[0006] In at least some embodiments, there are two groups of fixing frames, each group of fixing frames is an L-shaped folding plate structure, the inner side surface of the L-shaped folding plate structure of the fixing frame is provided with a triangular support plate, the front side surface of the L-shaped folding plate structure of the fixing frame is provided with a rectangular through groove, the second clamping bolt is inserted in the rectangular through groove of the fixing frame, and the bottom of the L-shaped folding plate structure of the fixing frame is provided with four groups of through holes that pass through the top and bottom, the through holes of the fixing frame are connected to the long through grooves of the placement frame, and the first clamping bolt is inserted in the through holes of the fixing frame.

[0007] In at least some embodiments, the number of the pressure plates is two groups, and the pressure plates are L-shaped folding plate structures. A triangular plate is provided on the inner side of the L-shaped folding plate structure of the pressure plate, a rubber pad is bonded to the bottom of the L-shaped folding plate structure of the pressure plate, and a through hole that passes through the front and back is provided on the rear side surface of the L-shaped folding plate structure of the pressure plate. The second clamping bolt is inserted into the through hole of the pressure plate, and the outer side surface of the second clamping bolt is meshed with a second clamping nut.

[0008] In at least some embodiments, the front side surface of the slide is provided with front-to-back through holes near the left and right ends, and the two groups of supporting guide rods are respectively inserted into the two groups of through holes of the slide. A front-to-back threaded through hole is provided at the center position of the front side surface of the slide, and the outer side surface of the threaded rod is threadedly engaged in the threaded through hole of the slide.

[0009] In at least some embodiments, there are four groups of foot plates, each group of foot plates is a square sheet structure, and the four corners of the upper side of the foot plates are provided with through holes that pass through from top to bottom, rivets are inserted in the through holes of the foot plates, and weights are placed on the upper side of the square sheet structure of the foot plates.

[0010] In at least some embodiments, the number of the weights is four groups, each group of weights is a concave structure, and the left and right sides inside the concave structure of the weights are provided with two groups of vertically penetrating grooves, and the convex plates on the left and right sides of the frame are inserted into the grooves of the two groups of weights.

[0011] In at least some embodiments, the number of the sleeves is two groups, each group of sleeves is a cylindrical structure with an opening on the upper side, the inner side of the cylindrical structure of the sleeve is slidably connected to a lifting frame, the lower side of the sleeve is welded with a foot plate, and the outer side of each group of sleeves is provided with two groups of symmetrically distributed convex plates, and the convex plates on the outer side of the sleeve are inserted in the grooves of the two groups of weights.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the control machine controls the motor to drive the threaded rod to form a threaded engagement transmission mechanism in the threaded through hole of the slide, so that the slide drives the placement frame hinged at the top to flip up and down through the connecting rod. In strong wind weather, the tilt angle of the solar panel clamped on the side of the placement frame is quickly changed to keep the solar panel parallel to the wind direction, reduce the wind-exposed area of ​​the solar panel, and reduce the impact of strong external wind on the surface of the solar panel and the photovoltaic bracket.

[0013] 2. In the present invention, four groups of concave-shaped weights are used to perform vertical downward gravity extrusion on the foot plates and rivets welded to the lower sides of the stand and the sleeve, thereby raising the bottom center of gravity of the stand and the sleeve, making the connection between the foot plates and the ground more firm and stable.

[0014] 3. In the present invention, the through holes of the fixing frame are connected to the long through grooves of the placing frame by means of the first clamping bolt and the first clamping nut to form a butt clamping structure, and the through holes of the pressure plate are connected to the rectangular through grooves of the fixing frame by means of the second clamping bolt and the second clamping nut to form a butt clamping structure, so that the placing frame can flexibly clamp and install solar panels of different thicknesses and sizes, thereby improving the applicability of the photovoltaic bracket installation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 It is a front view structural schematic diagram of the present invention.

[0017] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0018] Figure 4 It is a left-side structural schematic diagram of the present invention.

[0019] Figure 5 It is a schematic diagram of the structure of the present invention when viewed from above.

[0020] Figure 6 It is a schematic diagram of the upward side view structure of the present invention.

[0021] Figure 7 The present invention Figure 6 Schematic diagram of the enlarged structure of part A in the middle.

[0022] Figure 8 It is a schematic diagram of the explosion structure of the present invention.

[0023] Fig. 9 It is a schematic diagram of the cutaway structure of the present invention.

[0024] Fig.10 The present invention Fig. 9 Schematic diagram of the enlarged structure of part B in the middle.

[0025] Fig.11 The present invention Fig. 9 Schematic diagram of the enlarged structure of part C in the middle.

[0026] Fig.12 The present invention Fig. 9 Schematic diagram of the enlarged structure of part D in the middle.

[0027] Figure numerals: 1. solar panel; 2. placement rack; 3. lifting rack; 4. weight; 5. sleeve column; 6. support guide rod; 7. slide; 8. stand; 9. motor; 10. control machine; 11. fixed frame; 12. pressure plate; 13. connecting rod; 14. threaded rod; 15. rivet; 16. slide groove; 17. slider; 18. foot plate; 19. rear support plate; 20. front support plate; 21. first clamping bolt; 22. first clamping nut; 23. second clamping bolt; 24. second clamping nut. DETAILED DESCRIPTION

[0028] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] like Figure 1-Figure 12 As shown, the present invention provides a photovoltaic bracket with strong stability, including a rear support plate 19; the left side and the right side of the rear support plate 19 are welded with a sleeve column 5, the front side of the sleeve column 5 is welded with a support guide rod 6, and the front end of the support guide rod 6 is welded with a stand 8; it also includes a lifting frame 3, a fixing frame 11, a pressing plate 12 and a front support plate 20; the upper side of the lifting frame 3 is hinged with a slider 17, the top of the slider 17 is slidably connected to the inner side of the slide groove 16, the upper side of the slide groove 16 is welded with a placement frame 2, and the upper side of the placement frame 2 is placed with a solar panel 1; A stand 8 is welded to the left and right sides of the front support plate 20, a placement frame 2 is hinged on the top of the stand 8, a connecting rod 13 is hinged at the center of the lower side of the placement frame 2, a slide 7 is hinged on the other end of the connecting rod 13, a control machine 10 is installed on the rear side of the front support plate 20, a motor 9 is installed on the front side of the front support plate 20, a threaded rod 14 is installed on the motor shaft of the motor 9, and the rear end of the threaded rod 14 is rotatably connected to the rear support plate 19; convex plates are provided on the left and right sides of the stand 8, and a foot plate 18 is welded to the lower side of the stand 8.

[0030] In the disclosed embodiment, the placement rack 2 is a groove structure that runs through the front and back, and a solar panel 1 is placed inside the groove structure of the placement rack 2. The left wall and the right wall of the groove of the placement rack 2 limit and shield the solar panel 1 to prevent the solar panel 1 from vibrating and sliding out from the left or right side of the placement rack 2, thereby ensuring that the solar panel 1 is stably placed. Two groups of long through grooves that run through the top and bottom are provided on the upper side of the placement rack 2 near the left and right sides, and a first clamping bolt 21 is inserted into each group of the long through grooves of the placement rack 2, and the outer side of the first clamping bolt 21 is meshed with a first clamping nut 22.

[0031] In the disclosed embodiment, there are two groups of fixing frames 11, and each group of fixing frames 11 is an L-shaped folding plate structure. The inner side surface of the L-shaped folding plate structure of the fixing frame 11 is provided with a triangular support plate, and the structural strength of the fixing frame 11 is enhanced by the principle of triangular structural stability. The front side surface of the L-shaped folding plate structure of the fixing frame 11 is provided with a rectangular through groove, and the rectangular through groove of the fixing frame 11 is inserted with a second clamping bolt 23. The bottom of the L-shaped folding plate structure of the fixing frame 11 is provided with four groups of through holes that pass through from top to bottom. The through holes of the fixing frame 11 are connected to the long through groove of the placement frame 2, and the first clamping bolt 21 is inserted in the through holes of the fixing frame 11. The first clamping bolt 21 cooperates with the first clamping nut 22 engaged with the outer side surface to make the through hole of the fixing frame 11 connect to any position of the long through groove of the placement frame 2 for fixing, so that the fixing frame 11 can support and clamp the solar panel 1 of any size on the placement frame 2 from front to back, thereby improving the installation flexibility of the photovoltaic bracket for solar panels 1 of different sizes.

[0032] In the disclosed embodiment, there are two groups of pressing plates 12, and the pressing plates 12 are of L-shaped folding plate structure. A triangular plate is provided on the inner side of the L-shaped folding plate structure of the pressing plate 12, and the triangular plate supports the L structure of the pressing plate 12 to improve the structural strength of the pressing plate 12. A rubber pad is bonded to the bottom of the L-shaped folding plate structure of the pressing plate 12, and a through hole that passes through the front and rear is provided on the rear side of the L-shaped folding plate structure of the pressing plate 12. The second clamping bolt 23 is inserted into the through hole of the pressing plate 12, and the outer side of the second clamping bolt 23 is meshed with a second clamping nut 24. The second clamping bolt 23 cooperates with the second clamping nut 24 meshed with the outer side to fix the through hole of the pressing plate 12 to any position of the rectangular through groove of the fixing frame 11, so that the rubber pad of the pressing plate 12 is tightly fitted to the upper side of the solar panel 1 near the front and rear edges, so that the pressing plate 12 can stably clamp the solar panel 1 of any thickness on the placement frame 2 up and down.

[0033] In the disclosed embodiment, the front side surface of the slide 7 near the left and right ends are provided with front-to-back through holes, and the two groups of support guide rods 6 are respectively inserted into the two groups of through holes of the slide 7. The center position of the front side surface of the slide 7 is provided with a threaded through hole that passes through the front and back, and the outer side surface of the threaded rod 14 is threadedly engaged in the threaded through hole of the slide 7. In the process of the motor 9 driving the threaded rod 14 to rotate, the threaded rod 14 drives the slide 7 engaged on the outer side to slide forward or backward along the support guide rod 6. The slide 7 pulls the connecting rod 13 hinged on the upper side to drive the placement rack 2 to tilt and flip up and down, and the placement rack 2 drives the solar panel 1 to remain parallel to the external wind direction, thereby reducing the wind-exposed area of ​​the solar panel 1.

[0034] In the disclosed embodiment, there are four groups of foot plates 18, and each group of foot plates 18 is a square sheet structure. The four corners of the upper side of the foot plates 18 are provided with through holes that pass through from top to bottom. Rivets 15 are inserted into the through holes of the foot plates 18, and the rivets 15 penetrate into the ground to fix the foot plates 18 to the ground. A weight block 4 is placed on the upper side of the square sheet structure of the foot plates 18. The weight block 4 pushes the foot plates 18 and the rivets 15 vertically downward by its own weight, so that the foot plates 18 are stably attached to the ground, thereby improving the center of gravity level at the bottom of the photovoltaic bracket and allowing the photovoltaic bracket to be stably connected to the ground.

[0035] In the disclosed embodiment, there are four groups of weight blocks 4, and each group of weight blocks 4 is a concave structure. The left and right sides of the concave structure of the weight blocks 4 are provided with two groups of vertically penetrating grooves. The convex plates on the left and right sides of the stand 8 are inserted into the grooves of the two groups of weight blocks 4. The convex plates of the stand 8 are used to horizontally support and limit the weight blocks 4, ensuring that the weight blocks 4 are stably around the outer side of the stand 8, preventing the weight blocks 4 from horizontally shifting, and allowing the weight blocks 4 to perform stable gravity extrusion on the foot plates 18 welded to the lower side of the stand 8.

[0036] In the disclosed embodiment, there are two groups of sleeve columns 5, each group of sleeve columns 5 is a cylindrical structure with an opening on the upper side, the inner side surface of the cylindrical structure of the sleeve column 5 is slidably connected to the lifting frame 3, the lower side surface of the sleeve column 5 is welded with a foot plate 18, and the outer side surface of each group of sleeve columns 5 is provided with two groups of convex plates symmetrically distributed on the left and right, the convex plates on the outer side surfaces of the sleeve columns 5 are inserted in the grooves of the two groups of weights 4, and the weights 4 are horizontally limited by the convex plates on the outer side surfaces of the sleeve columns 5 to ensure that the weights 4 rely on gravity to stably vertically squeeze the foot plates 18 on the lower side surfaces of the sleeve columns 5, and prevent the weights 4 from being horizontally offset and detached from the foot plates 18 welded to the sleeve columns 5 due to vibration.

[0037] The specific usage and function of this embodiment are as follows: When installing the solar panel 1 of the present invention, firstly, the through hole of the fixing frame 11 is docked at the long through slot structure of the placing frame 2 according to the area size of the solar panel 1, and then the first clamping bolt 21 is inserted into the through hole of the fixing frame 11 and the long through slot of the placing frame 2 from top to bottom, and the first clamping nut 22 is screwed on the outer side thread structure of the first clamping bolt 21, so that the two sets of fixing frames 11 are clamped on the upper side of the placing frame 2 by the first clamping nut 22 and the first clamping bolt 21, and then the solar panel 1 is placed on the upper side of the placing frame 2. At this time, the solar panels 1 are distributed between the two groups of fixing frames 11. Then, according to the thickness of the solar panels 1, the through holes of the pressing plate 12 are connected to the rectangular through slots of the fixing frames 11. The second clamping bolts 23 are inserted into the through holes of the pressing plate 12 and the rectangular through slots of the fixing frames 11. The second clamping nuts 24 are screwed on the outer side thread structures of the second clamping bolts 23, so that the two groups of pressing plates 12 are clamped on the two groups of fixing frames 11 by the second clamping bolts 23 and the second clamping nuts 24 respectively. At this time, the rubber pads on the lower side of the L-shaped structure of the pressing plate 12 are tightly attached to the solar panels 12. On the upper side of the solar panel 1, the pressing plate 12 cooperates with the placing frame 2 to clamp the solar panel 1 up and down. In strong wind weather, when the solar panel 1 needs to adjust the windward side, the control machine 10 controls the motor 9 through the wire to drive the threaded rod 14 to rotate, and the threaded rod 14 drives the slide 7 engaged with the outer side to move forward or backward along the support guide rod 6. The slide 7 drives the hinged connecting rod 13 to flip during the forward and backward translation process, and the connecting rod 13 drives the top hinged placing frame 2 to flip synchronously, so that the placing frame 2 drives the upper side fixing frame 11 and the pressing plate 12 to clamp the solar panel 1 up and down. The solar panel 1 clamped by the plate 12 is flipped up and down, so that the surface of the solar panel 1 is kept parallel to the external wind direction, reducing the wind impact area of ​​the strong wind on the surface of the solar panel 1, and reducing the wind impact of the strong wind on the solar panel 1 and the photovoltaic bracket. In addition, the weight 4 squeezes the sleeve column 5 and the foot plate 18 welded to the bottom end of the frame 8 and the rivet 15 inserted into the through hole of the foot plate 18 through its own gravity, so that the rivet 15 is stably inserted into the ground, and the lower side of the foot plate 18 is in contact with the ground, which increases the bottom center of gravity of the photovoltaic bracket and makes the connection between the photovoltaic bracket and the ground more firm and stable.

[0038] The installation, connection or setting methods of all the above components are common mechanical methods, such as welding, threaded connection, screw connection, etc., and the specific structures, models and coefficient indicators of all its components are its own technology, as long as it can achieve its beneficial effects, it can be implemented. The solar panels 1, motors 9, and control machines 10 used above are all common components on the market. When they are bought back for use, they can be used by simply connecting them according to the instruction manual purchased together, so they will not be repeated here.

[0039] The technical solutions of the present invention are not limited to the scope of the embodiments of the present invention, and the technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. A photovoltaic support with strong stability, comprising a rear support plate (19); a sleeve column (5) is welded to the left and right sides of the rear support plate (19); a support guide rod (6) is welded to the front side of the sleeve column (5); and a stand (8) is welded to the front end of the support guide rod (6); the characteristics are: The solar panel (1) is placed on the upper side of the front support plate (20); the upper side of the lifting frame (3) is hinged with a slider (17), the top of the slider (17) is slidably connected to the inner side of the slide groove (16), the upper side of the slide groove (16) is welded with a placement frame (2), and the upper side of the placement frame (2) is placed with a solar panel (1); the left side and the right side of the front support plate (20) are welded with a stand frame (8), the top of the stand frame (8) is hinged with the placement frame (2), and the placement frame (2 ) is hinged with a connecting rod (13) at the center position of the lower side surface, and the other end of the connecting rod (13) is hinged with a slide (7), the rear side surface of the front support plate (20) is installed with a control machine (10), the front side surface of the front support plate (20) is installed with a motor (9), the motor shaft of the motor (9) is installed with a threaded rod (14), and the rear end of the threaded rod (14) is rotatably connected to the rear support plate (19); the left side and the right side of the stand (8) are provided with convex plates, and the lower side of the stand (8) is welded with a foot plate (18).

2. A photovoltaic bracket with strong stability as claimed in claim 1, characterized in that: The placement rack (2) is a groove structure that runs through the front and back, and a solar panel (1) is placed inside the groove structure of the placement rack (2). Two groups of long through grooves that run through the top and bottom are provided on the upper side of the placement rack (2) near the left side and the right side. A first clamping bolt (21) is inserted into each group of long through grooves of the placement rack (2), and a first clamping nut (22) is meshed and connected to the outer side of the first clamping bolt (21).

3. A photovoltaic support with strong stability as claimed in claim 1, characterized in that: The number of the fixing frames (11) is two groups, and each group of fixing frames (11) is an L-shaped folded plate structure. A triangular support plate is provided on the inner side of the L-shaped folded plate structure of the fixing frame (11). A rectangular through groove is provided on the front side of the L-shaped folded plate structure of the fixing frame (11). A second clamping bolt (23) is inserted into the rectangular through groove of the fixing frame (11). Four groups of through holes are provided at the bottom of the L-shaped folded plate structure of the fixing frame (11), and the through holes of the fixing frame (11) are connected to the long through groove of the placement frame (2). The first clamping bolt (21) is inserted into the through hole of the fixing frame (11).

4. A photovoltaic support with strong stability as claimed in claim 1, characterized in that: The number of the pressing plates (12) is two groups, the pressing plates (12) are L-shaped folding plate structures, a triangular plate is provided on the inner side of the L-shaped folding plate structure of the pressing plate (12), a rubber pad is bonded to the bottom of the L-shaped folding plate structure of the pressing plate (12), a through hole is provided on the rear side of the L-shaped folding plate structure of the pressing plate (12) and a second clamping bolt (23) is inserted into the through hole of the pressing plate (12), and a second clamping nut (24) is meshedly connected to the outer side of the second clamping bolt (23).

5. A photovoltaic support with strong stability as claimed in claim 1, characterized in that: The front side surface of the slide (7) is provided with front-to-back through holes near the left and right ends, and the two groups of support guide rods (6) are respectively inserted into the two groups of through holes of the slide (7). The center position of the front side surface of the slide (7) is provided with a front-to-back through threaded hole, and the outer side surface of the threaded rod (14) is threadedly engaged with the threaded through hole of the slide (7).

6. A photovoltaic support with strong stability as claimed in claim 1, characterized in that: The foot plates (18) are provided in four groups, each group of foot plates (18) is a square sheet structure, four corners of the upper side of the foot plates (18) are provided with through holes extending vertically, rivets (15) are inserted into the through holes of the foot plates (18), and a weight (4) is placed on the upper side of the square sheet structure of the foot plates (18).

7. A photovoltaic support with strong stability as claimed in claim 6, characterized in that: The weight blocks (4) are four in number, each group of weight blocks (4) is a concave structure, and the left and right sides of the concave structure of the weight blocks (4) are each provided with two groups of vertically penetrating grooves, and the convex plates on the left and right sides of the stand (8) are inserted into the grooves of the two groups of weight blocks (4).

8. A photovoltaic support with strong stability as claimed in claim 1, characterized in that: The number of the sleeve columns (5) is two groups, each group of sleeve columns (5) is a cylindrical structure with an upper opening, the inner side of the cylindrical structure of the sleeve columns (5) is slidably connected to the lifting frame (3), the lower side of the sleeve columns (5) is welded with a foot plate (18), and the outer side of each group of sleeve columns (5) is provided with two groups of symmetrically distributed convex plates, and the convex plates on the outer side of the sleeve columns (5) are inserted into the grooves of the two groups of weight blocks (4).