Angle-adjustable photovoltaic support

Abstract

The utility model discloses an angle-adjustable photovoltaic support, and relates to the technical field of photovoltaic supports. Comprising a left vertical frame, a right vertical frame and a horizontal supporting plate. The right side of the horizontal supporting plate is connected with the right vertical frame; the first servo motor is connected with the right vertical frame, and the output end of the first servo motor is connected with the right end of the right rotating rod. The horizontal supporting plate is connected with a second servo motor; the lower end of the vertical support rod is connected with the output end of the second servo motor, and the upper end is connected with the photovoltaic panel; and the photosensitive sensor is connected with the upper surface of the photovoltaic panel. The controller receives signals of the photosensitive sensor and then controls the first servo motor to rotate, the first servo motor rotates to drive the horizontal supporting plate to rotate, and therefore the photovoltaic panel is driven to rotate on the vertical face. The controller receives a signal of the photosensitive sensor and then controls the second servo motor to rotate, the second servo motor rotates to drive the vertical supporting rod to rotate, and therefore the photovoltaic panel is driven to rotate on the horizontal plane. The driving device is simple in structure and high in operation efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic brackets, and in particular to an angle-adjustable photovoltaic bracket. Background Art

[0002] Solar photovoltaic power generation technology is a new power generation technology that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. Currently, solar photovoltaic technology is widely used. Among them, the most common is solar power generation through photovoltaic panels, which are generally fixed on photovoltaic brackets when in use.

[0003] The existing Chinese patent with publication number CN104503480A discloses an automatic light-tracking device for solar panels, comprising: a solar panel, on the surface of which an azimuth angle sensor, an illuminance sensor and an altitude angle sensor connected to a controller are provided; a support cylinder, which is rotatably arranged on a fixed seat through a horizontal rotating shaft, and a transmission gear is arranged on the horizontal rotating shaft; a first driving device, which is connected to the transmission gear to drive its rotation; a tripod, which is fixed to the surface of the supporting cylinder, and a vertical rotating shaft is arranged on the tripod, and a pinion is arranged on the vertical rotating shaft; a second driving device, which is connected to the vertical rotating shaft to drive its horizontal rotation; two columns, which are fixed on both sides of the tripod; and a solar panel mounting frame, which is rotatably arranged on the two columns, and a semicircular gear is arranged on the back of the solar panel mounting frame, and the semicircular gear is meshed with the pinion. The device has high conversion efficiency, high tracking accuracy, low maintenance and the like, and has good practical value.

[0004] However, the driving structure for horizontal and vertical rotation of the solar panel in the above technical solution is too complicated and the operation efficiency is not high.

[0005] Therefore, it is extremely important to propose a photovoltaic bracket with a simple driving structure, high operating efficiency and adjustable angle. Utility Model Content

[0006] The utility model aims to solve the problem that the driving structure for horizontally rotating and vertically rotating the solar panel in the existing automatic light tracking device for the solar panel is too complicated and the operation efficiency is low.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: an angle-adjustable photovoltaic bracket, comprising a left stand, a right stand, and a horizontal support plate; the left side of the horizontal support plate is connected to the left stand through a left rotating rod, and the right side is connected to the right stand through a right rotating rod; and further comprising a first servo motor; the first servo motor is connected to the right stand, and the output end of the first servo motor is connected to the right end of the right rotating rod;

[0008] The upper surface of the horizontal support plate is connected to a second servo motor; it also includes a vertical support rod; the lower end of the vertical support rod is connected to the output end of the second servo motor, and the upper end of the vertical support rod is connected to the photovoltaic panel;

[0009] It also includes a photosensor and a controller; the photosensor is connected to the upper surface of the photovoltaic panel; the controller is used to control the rotation of the first servo motor and the second servo motor after receiving the signal from the photosensor, so that the photovoltaic panel rotates to a position perpendicular to the direction of sunlight.

[0010] Furthermore, it also includes a placement board; the upper end of the vertical support rod is connected to the photovoltaic panel through the placement board; the lower surface of the placement board is connected to the upper end of the vertical support rod, and the upper surface of the placement board is provided with a placement groove for placing the photovoltaic panel; the photosensitive sensor is connected to the upper surface of the photovoltaic panel, which is replaced by: the photosensitive sensor is connected to the upper surface of the placement board;

[0011] It also includes a sliding rod, a screw rod, a front clamping strip, and a rear clamping strip placed in the placement groove; the sliding rod is arranged in the front-to-back direction and is close to the left side of the placement groove, and the screw rod is arranged in the front-to-back direction and is close to the right side of the placement groove; the front and rear ends of the sliding rod are connected to the placement plate, and the front and rear ends of the screw rod are rotatably connected to the placement plate; the front clamping strip is arranged in the left-right direction and is close to the front side of the placement groove, and the rear clamping strip is arranged in the left-right direction and is close to the rear side of the placement groove; the left ends of the front clamping strip and the rear clamping strip are both provided with through holes and are penetrated by the sliding rod, and the right ends of the front clamping strip and the rear clamping strip are both provided with through holes and are penetrated by the screw rod; the screw rod is provided with external threads on the outer surfaces near its front end and near its rear end, and the directions of the two external threads are opposite, and the through holes at the right ends of the front clamping strip and the rear clamping strip are both provided with internal threads matching the external threads of the screw rod.

[0012] Furthermore, it also includes a connecting rod; the connecting rod is arranged in the front-to-back direction, the front end of the connecting rod passes through the placement plate and is connected to the rear end of the screw rod, and the connecting rod and the screw rod are located in the same straight line;

[0013] It also includes a turntable and a telescopic rod; the rear end of the connecting rod is connected to the turntable and the connecting rod is perpendicular to the turntable; the turntable is provided with a plurality of plug-in holes along a circle close to its outer edge; the telescopic rod is parallel to the connecting rod and the front end of the telescopic rod is connected to a placement plate; when the rotating screw drives the turntable to rotate, the telescopic rod can be extended to be clamped in different plug-in holes.

[0014] Furthermore, it also includes diagonal bracing rods in four directions: front, back, left, and right; the upper ends of the diagonal bracing rods are connected to the bottom of the placement plate, and the lower ends are connected to the vertical supporting rods.

[0015] Furthermore, it also includes a bearing; the second servo motor is placed inside the bearing; the bearing is placed above the horizontal support plate; the lower end of the outer ring of the bearing is connected to the horizontal support plate, and the top end of the inner ring of the bearing is connected to a rotating table;

[0016] It also includes a connecting block; the lower end of the vertical support rod is connected to the connecting block, and the lower part of the connecting block is connected to the upper part of the rotating platform; the output end of the second servo motor passes through the rotating platform and is connected to the lower part of the connecting block.

[0017] Furthermore, it also includes an oblique support member; one end of the oblique support member is connected to the vertical support rod, and the other end is connected to the rotating table.

[0018] Furthermore, it also includes a protection box; the controller is connected to the upper surface of the horizontal support plate; the protection box is covered outside the controller and connected to the horizontal support plate.

[0019] Furthermore, it also includes a horizontal bottom plate; the left side of the horizontal bottom plate is connected to the lower end of the left vertical frame, and the right side is connected to the lower end of the right vertical frame.

[0020] Furthermore, both the front and rear sides of the horizontal bottom plate are connected with horizontal connecting blocks; the horizontal connecting blocks are provided with vertical bolt holes.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The output end of the first servo motor of the utility model is connected to the right rotating rod, the right rotating rod is connected to the horizontal support plate, the horizontal support plate is connected to the second servo motor, the output end of the second servo motor is connected to the vertical support rod upward, the upper end of the vertical support rod is connected to the photovoltaic panel, which constitutes a driving device for driving the photovoltaic panel to rotate in the vertical and horizontal planes; the controller controls the first servo motor to rotate after receiving the signal of the photosensitive sensor, the rotation of the first servo motor drives the horizontal support plate to rotate, thereby driving the photovoltaic panel to rotate in the vertical plane; the controller controls the second servo motor to rotate after receiving the signal of the photosensitive sensor, the rotation of the second servo motor drives the vertical support rod to rotate, thereby driving the photovoltaic panel to rotate in the horizontal plane. The above-mentioned driving device has a simple structure and high operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of the utility model.

[0024] Figure 2 It is a schematic diagram of the horizontal support plate and vertical support rod of the utility model.

[0025] Figure 3 This is a schematic diagram of the interior of the bearing of the present utility model.

[0026] Figure 4 It is a schematic diagram of a placement plate of the utility model.

[0027] The meanings of the numbers in the figure are as follows: 1. horizontal support plate; 2. left stand; 2a. right stand; 3. left rotating rod; 3a. right rotating rod; 4. first servo motor; 4a. second servo motor; 5. vertical support rod; 6. front clamping bar; 6a. rear clamping bar; 7. controller; 8. placement plate; 9. sliding rod; 10. screw rod; 11. connecting rod; 12. turntable; 13. telescopic rod; 14. plug-in hole; 15. bearing; 16. rotating table; 17. connecting block; 18. oblique support member; 19. oblique support rod; 20. photosensitive sensor; 21. protective box; 22. horizontal bottom plate; 23. horizontal connecting block. DETAILED DESCRIPTION

[0028] The technical solution of the utility model is clearly and completely described below in conjunction with the drawings and specific implementation methods of the specification. The described embodiment is one embodiment of the utility model, and the utility model may also have other implementation methods.

[0029] Example:

[0030] See also Figure 1~Figure 4 The utility model is an angle-adjustable photovoltaic bracket, comprising a left stand 2, a right stand 2a, and a horizontal support plate 1; the left side of the horizontal support plate 1 is connected to the left stand 2 through a left rotating rod 3, and the right side is connected to the right stand 2a through a right rotating rod 3a; and further comprising a first servo motor 4; the first servo motor 4 is connected to the right stand 2a, and the output end of the first servo motor 4 is connected to the right end of the right rotating rod 3a;

[0031] The upper surface of the horizontal support plate 1 is connected to a second servo motor 4a; it also includes a vertical support rod 5; the lower end of the vertical support rod 5 is connected to the output end of the second servo motor 4a, and the upper end of the vertical support rod 5 is connected to the photovoltaic panel;

[0032] It also includes a photosensor 20 and a controller 7; the photosensor 20 is connected to the upper surface of the photovoltaic panel; the controller 7 is used to control the rotation of the first servo motor 4 and the second servo motor 4a after receiving the signal from the photosensor 20, so that the photovoltaic panel rotates to a position perpendicular to the direction of sunlight.

[0033] In this embodiment, the photosensitive sensor 20 is used to detect the irradiation direction of sunlight. When the photovoltaic panel is not perpendicular to the irradiation direction of sunlight, the controller 7 controls the first servo motor 4 and the second servo motor 4a to work. The power provided by the second servo motor 4a is used to drive the vertical support rod 5 to rotate, so that the vertical support rod 5 drives the photovoltaic panel to rotate, thereby adjusting the horizontal angle of the photovoltaic panel. The power provided by the first servo motor 4 is used to drive the right rotating rod 3a to rotate, so that the right rotating rod 3a drives the horizontal supporting plate 1 to rotate, thereby adjusting the vertical angle of the photovoltaic panel; finally, the photovoltaic panel is adjusted to a position perpendicular to the irradiation direction of sunlight, ensuring the good power generation efficiency of the photovoltaic panel and increasing the practicality of the device.

[0034] The output end of the first servo motor 4 of the utility model is connected to the right rotating rod 3a, the right rotating rod 3a is connected to the horizontal support plate 1, the horizontal support plate 1 is connected to the second servo motor 4a, the output end of the second servo motor 4a is upwardly connected to the vertical support rod 5, the upper end of the vertical support rod 5 is connected to the photovoltaic panel, which constitutes a driving device for driving the photovoltaic panel to rotate in the vertical and horizontal planes; the controller 7 controls the first servo motor 4 to rotate after receiving the signal of the photosensitive sensor 20, the first servo motor 4 rotates to drive the horizontal support plate 1 to rotate, thereby driving the photovoltaic panel to rotate in the vertical plane; the controller 7 controls the second servo motor 4a to rotate after receiving the signal of the photosensitive sensor 20, the second servo motor 4a rotates to drive the vertical support rod 5 to rotate, thereby driving the photovoltaic panel to rotate in the horizontal plane. The above-mentioned driving device has a simple structure and high efficiency in operation.

[0035] As a preferred embodiment, it also includes a placement plate 8; the upper end of the vertical support rod 5 is connected to the photovoltaic panel through the placement plate 8; the lower surface of the placement plate 8 is connected to the upper end of the vertical support rod 5, and the upper surface of the placement plate 8 is provided with a placement groove for placing the photovoltaic panel; the photosensitive sensor 20 is connected to the upper surface of the photovoltaic panel, which is replaced by: the photosensitive sensor 20 is connected to the upper surface of the placement plate 8;

[0036] It also includes a sliding rod 9, a screw rod 10, a front clamping strip 6, and a rear clamping strip 6a placed in the placement groove; the sliding rod 9 is arranged in the front-to-back direction and is close to the left side of the placement groove, and the screw rod 10 is arranged in the front-to-back direction and is close to the right side of the placement groove; the front and rear ends of the sliding rod 9 are connected to the placement plate 8, and the front and rear ends of the screw rod 10 are rotatably connected to the placement plate 8; the front clamping strip 6 is arranged in the left-right direction and is close to the front side of the placement groove, and the rear clamping strip 6a is arranged in the left-right direction and is close to the rear side of the placement groove; the left ends of the front clamping strip 6 and the rear clamping strip 6a are both provided with through holes and are penetrated by the sliding rod 9, and the right ends of the front clamping strip 6 and the rear clamping strip 6a are both provided with through holes and are penetrated by the screw rod 10; the screw rod 10 is provided with external threads on the outer surfaces near its front end and near its rear end, and the directions of the two external threads are opposite, and the through holes at the right ends of the front clamping strip 6 and the rear clamping strip 6a are provided with internal threads matching the external threads of the screw rod 10.

[0037] In this embodiment, the worker places the photovoltaic panel into the placement groove and then rotates the screw 10 so that the front clamping bar 6 and the rear clamping bar 6a move toward each other along the screw 10 and the sliding rod 9, thereby clamping and fixing the photovoltaic panel, thereby ensuring the stability of the photovoltaic panel.

[0038] As a preferred embodiment, it further includes a connecting rod 11; the connecting rod 11 is arranged in the front-to-back direction, the front end of the connecting rod 11 penetrates the placement plate 8 and is connected to the rear end of the screw rod 10, and the connecting rod 11 and the screw rod 10 are located in the same straight line;

[0039] It also includes a turntable 12 and a telescopic rod 13; the rear end of the connecting rod 11 is connected to the turntable 12 and the connecting rod 11 is perpendicular to the turntable 12; the turntable 12 is provided with a plurality of plug holes 14 along a circle close to its outer edge; the telescopic rod 13 is parallel to the connecting rod 11 and the front end of the telescopic rod 13 is connected to the placement plate 8; when the rotating screw 10 drives the turntable 12 to rotate, the telescopic rod 13 can be extended to be clamped in different plug holes 14.

[0040] In this embodiment, after the screw rod 10 is rotated to clamp the photovoltaic panel, the telescopic rod 13 is extended so that the telescopic rod 13 is engaged in the insertion hole 14, thereby braking the screw rod 10 and stopping it from rotating, thereby ensuring the stability of the photovoltaic panel.

[0041] As a preferred embodiment, it also includes diagonal bracing rods 19 in four directions: front, back, left, and right. The upper ends of the diagonal bracing rods 19 are connected to the bottom of the placement plate 8 , and the lower ends are connected to the vertical support rods 5 .

[0042] In this embodiment, the placement plate 8 is made more stable by providing diagonal braces 19 in four directions: front, back, left, and right.

[0043] As a preferred embodiment, it further includes a bearing 15; the second servo motor 4a is placed inside the bearing 15; the bearing 15 is placed above the horizontal support plate 1; the lower end of the outer ring of the bearing 15 is connected to the horizontal support plate 1, and the top end of the inner ring of the bearing 15 is connected to the rotating table 16;

[0044] The lower end of the vertical support rod 5 is connected to the connecting block 17, and the lower part of the connecting block 17 is connected to the upper part of the rotating table 16; the output end of the second servo motor 4a passes through the rotating table 16 and is connected to the lower part of the connecting block 17.

[0045] In this embodiment, the installation of the bearing 15 stabilizes the rotating table 16 , thereby preventing the rotating table 16 from shaking during rotation, ensuring the stability of the rotation of the rotating table 16 , and further ensuring the stability of the placement plate 8 .

[0046] As a preferred embodiment, it further comprises an oblique support member 18 ; one end of the oblique support member 18 is connected to the vertical support rod 5 , and the other end is connected to the rotating platform 16 .

[0047] In this embodiment, the arrangement of the oblique support member 18 further ensures the stability of the vertical support rod 5 during the rotation process.

[0048] As a preferred embodiment, it further includes a protection box 21 ; the controller 7 is connected to the upper surface of the horizontal support plate 1 ; the protection box 21 covers the outside of the controller 7 and is connected to the horizontal support plate 1 .

[0049] In this embodiment, the protection box 21 plays a role in providing safety protection for the controller 7 , and tries to prevent external objects such as rain from coming into contact with the controller 7 , thereby increasing the service life of the controller 7 .

[0050] As a preferred embodiment, it also includes a horizontal bottom plate 22; the left side of the horizontal bottom plate 22 is connected to the lower end of the left vertical frame 2, and the right side is connected to the lower end of the right vertical frame 2a.

[0051] In this embodiment, the horizontal bottom plate 22 is used as the base, so that the entire bracket can be placed on the ground more conveniently.

[0052] As a preferred embodiment, the horizontal bottom plate 22 is connected to horizontal connecting blocks 23 on both the front and rear sides; the horizontal connecting blocks are provided with vertical bolt holes.

[0053] In this embodiment, two horizontal connecting blocks 23 are fixedly installed on both sides of the horizontal bottom plate 22, and each horizontal connecting block 23 is threadedly connected to a fixing bolt inside, and the bottom end of each fixing bolt passes through the horizontal connecting block 23 and extends to the bottom of the horizontal connecting block 23; the installation of the horizontal connecting blocks 23 and the fixing bolts makes it convenient for workers to fix the horizontal bottom plate 22 on the ground, thereby avoiding the phenomenon of the horizontal bottom plate 22 moving on its own, thereby ensuring the stability of the horizontal bottom plate 22.

[0054] The terms “connection”, “fixation” and “docking” appearing in the description of the present invention may refer to fixed connection, processing, welding or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0055] In the description of the present invention, the terms "inside", "upper", "lower", "end", "side", "outside", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A photovoltaic support with adjustable angle, characterized by: The invention comprises a left vertical frame (2), a right vertical frame (2a), and a horizontal support plate (1); the left side of the horizontal support plate (1) is connected to the left vertical frame (2) via a left rotating rod (3), and the right side of the horizontal support plate (1) is connected to the right vertical frame (2a) via a right rotating rod (3a); and the invention also comprises a first servo motor (4); the first servo motor (4) is connected to the right vertical frame (2a), and the output end of the first servo motor (4) is connected to the right end of the right rotating rod (3a); The upper surface of the horizontal support plate (1) is connected to a second servo motor (4a); and further comprises a vertical support rod (5); the lower end of the vertical support rod (5) is connected to the output end of the second servo motor (4a), and the upper end of the vertical support rod (5) is connected to the photovoltaic panel; It also includes a photosensor (20) and a controller (7); the photosensor (20) is connected to the upper surface of the photovoltaic panel; the controller (7) is used to control the first servo motor (4) and the second servo motor (4a) to rotate after receiving a signal from the photosensor (20), thereby rotating the photovoltaic panel to a position perpendicular to the direction of sunlight.

2. The angle-adjustable photovoltaic bracket according to claim 1, characterized in that: It also includes a placement plate (8); the upper end of the vertical support rod (5) is connected to the photovoltaic panel via the placement plate (8); the lower surface of the placement plate (8) is connected to the upper end of the vertical support rod (5), and the upper surface of the placement plate (8) is provided with a placement groove for placing the photovoltaic panel; the photosensitive sensor (20) is connected to the upper surface of the photovoltaic panel, which is replaced by: the photosensitive sensor (20) is connected to the upper surface of the placement plate (8); The sliding rod (9), the screw rod (10), the front clamping strip (6), and the rear clamping strip (6a) are arranged in the placement groove; the sliding rod (9) is arranged in the front-to-back direction and is close to the left side of the placement groove, and the screw rod (10) is arranged in the front-to-back direction and is close to the right side of the placement groove; the front and rear ends of the sliding rod (9) are connected to the placement plate (8), and the front and rear ends of the screw rod (10) are rotatably connected to the placement plate (8); the front clamping strip (6) is arranged in the left-right direction and is close to the front side of the placement groove, and the rear clamping strip (6a) is arranged in the left-to-right direction. The front clamping strip (6) and the rear clamping strip (6a) are both provided with through holes at their left ends and penetrated by the sliding rod (9); the front clamping strip (6) and the rear clamping strip (6a) are both provided with through holes at their right ends and penetrated by the screw rod (10); the screw rod (10) is provided with external threads on its outer surface near its front end and near its rear end, and the directions of the two external threads are opposite; the through holes at the right ends of the front clamping strip (6) and the rear clamping strip (6a) are both provided with internal threads matching the external threads of the screw rod (10).

3. The angle-adjustable photovoltaic bracket according to claim 2, characterized in that: It also includes a connecting rod (11); the connecting rod (11) is arranged in the front-to-back direction, the front end of the connecting rod (11) passes through the placement plate (8) and is connected to the rear end of the screw rod (10), and the connecting rod (11) and the screw rod (10) are located in the same straight line; The invention also comprises a rotating disk (12) and a telescopic rod (13); the rear end of the connecting rod (11) is connected to the rotating disk (12) and the connecting rod (11) is perpendicular to the rotating disk (12); the rotating disk (12) is provided with a plurality of plug holes (14) along a circle close to the outer edge thereof; the telescopic rod (13) is parallel to the connecting rod (11) and the front end of the telescopic rod (13) is connected to the placement plate (8); when the rotating screw rod (10) drives the rotating disk (12) to rotate, the telescopic rod (13) can be extended so as to be clamped in different plug holes (14).

4. The angle-adjustable photovoltaic bracket according to claim 2, characterized in that: It also includes diagonal bracing rods (19) in four directions: front, back, left, and right. The upper ends of the diagonal bracing rods (19) are connected to the bottom of the placement plate (8), and the lower ends are connected to the vertical support rods (5).

5. The angle-adjustable photovoltaic bracket according to claim 1, characterized in that: It also includes a bearing (15); the second servo motor (4a) is placed inside the bearing (15); the bearing (15) is placed above the horizontal support plate (1); the lower end of the outer ring of the bearing (15) is connected to the horizontal support plate (1), and the top end of the inner ring of the bearing (15) is connected to a rotating table (16); It also includes a connecting block (17); the lower end of the vertical support rod (5) is connected to the connecting block (17), and the lower part of the connecting block (17) is connected to the upper part of the rotating platform (16); the output end of the second servo motor (4a) passes through the rotating platform (16) and is connected to the lower part of the connecting block (17).

6. The angle-adjustable photovoltaic bracket according to claim 5, characterized in that: It also includes an oblique support member (18); one end of the oblique support member (18) is connected to the vertical support rod (5), and the other end is connected to the rotating platform (16).

7. The angle-adjustable photovoltaic bracket according to claim 1, characterized in that: It also includes a protection box (21); the controller (7) is connected to the upper surface of the horizontal support plate (1); the protection box (21) covers the outside of the controller (7) and is connected to the horizontal support plate (1).

8. The angle-adjustable photovoltaic bracket according to claim 1, characterized in that: It also includes a horizontal bottom plate (22); the left side of the horizontal bottom plate (22) is connected to the lower end of the left vertical frame (2), and the right side is connected to the lower end of the right vertical frame (2a).

9. The angle-adjustable photovoltaic bracket according to claim 8, characterized in that: The horizontal bottom plate (22) is connected to horizontal connection blocks (23) at both the front and rear sides; the horizontal connection blocks are provided with vertical bolt holes.

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