Flexible support applied to photovoltaic device

Abstract

The flexible support comprises a base and a photovoltaic panel, a second groove is formed in the top wall of the base, a vertical plate is fixedly connected to the top wall of the base, a transverse plate is fixedly connected to the side wall of the top of the vertical plate, and a plurality of sliding blocks are slidably connected to the side wall of the vertical plate; a rectangular cavity is formed in the inner wall of each sliding block, a rotating rod is rotationally connected to the inner wall of each rectangular cavity in a penetrating mode, a support plate is fixedly connected to the end, away from the corresponding rectangular cavity, of each rotating rod, and the photovoltaic panel is fixedly installed on the side wall of the support plate. Under different illumination conditions, each rotating rod and each support plate are driven by a spline, a worm, a worm gear and other structures to rotate by a certain angle, so that the driving motor can also drive the support plates and the photovoltaic panel to synchronously rotate through the rotating shafts, the worm gear, the worm and other structures in the day when the sunlight angle is continuously changed, and the illumination effect is improved. Therefore, the photovoltaic panel obtains the optimal irradiation angle, and the utilization conversion rate of illumination is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic brackets, and in particular to a flexible bracket applied to photovoltaic devices. Background Art

[0002] Photovoltaic flexible bracket is a type of photovoltaic bracket that can be used to fix and install photovoltaic devices (such as photovoltaic panels). Compared with traditional rigid brackets (such as steel brackets or aluminum alloy brackets), photovoltaic flexible brackets use elastic materials and can produce certain deformations under the influence of external environments such as wind, thereby having better wind resistance and safety factor.

[0003] During the use of the current flexible brackets of photovoltaic devices, since they are used outdoors, dust or impurities often accumulate on the surface of the photovoltaic panel fixed on its upper part, thereby affecting the efficiency of the photovoltaic panel in utilizing solar energy and limiting the function of the photovoltaic panel. In addition, during the use of the current flexible brackets, if encountering weather such as rain, snow, and hail, the photovoltaic panel cannot be protected, which leads to damage to the photovoltaic panel. Moreover, after the current photovoltaic panels are installed at a fixed angle, their angles are difficult to adjust. When the direction of light changes continuously throughout the day, the receiving angle of the photovoltaic panel is fixed, resulting in low light energy conversion efficiency.

[0004] To this end, we propose a flexible bracket for photovoltaic devices. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose a flexible bracket applied to photovoltaic devices.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A flexible bracket for photovoltaic devices comprises a base and a photovoltaic panel, wherein the top wall of the base is provided with a second groove, the top wall of the base is fixedly connected with a vertical plate, the top side wall of the vertical plate is fixedly connected with a horizontal plate, the side walls of the vertical plate are slidably connected with a plurality of sliders, the inner wall of each slider is provided with a rectangular cavity, the inner wall of each rectangular cavity is penetrated by a rotating rod connected for rotation, the end of each rotating rod away from the rectangular cavity is fixedly connected with a bracket plate, and the photovoltaic panel is mounted and fixed on the side wall of the bracket plate; the base is provided with a control mechanism for adjusting the angle of the bracket plate; the base is provided with a driving mechanism for cleaning the surface of the photovoltaic panel.

[0008] Furthermore, a first groove is formed on the top wall of the base, a vertical hole is formed on the inner wall of the first groove, a driving motor is fixedly connected to the inner wall of the first groove through a supporting block, a rotating shaft is fixedly connected to the output end of the driving motor, a spline is fixedly connected to the side wall of the rotating shaft, a plurality of worms are slidingly connected to the spline and the side wall of the rotating shaft, and a worm wheel is fixedly connected to each end of each rotating rod away from the bracket plate, and each worm wheel is meshingly connected to an adjacent worm.

[0009] Furthermore, each slider has an inner wall provided with a through hole, a nut is fixedly connected to the top wall of one of the sliders, a forward and reverse motor is fixedly connected to the inner wall of the first groove, a reciprocating screw is fixedly connected to the output end of the forward and reverse motor, the reciprocating screw passes through a plurality of through holes in sequence, and the nut is threadedly connected to the side wall of the reciprocating screw.

[0010] Furthermore, one of the side walls of the slider is rotatably connected to the first rod via a round rod, and each of the other side walls of the slider is rotatably connected to the second rod via a cylinder, the first rod is rotatably connected to one end of an adjacent second rod, and two adjacent second rods are rotatably connected end to end, and the inner wall of the first groove is rotatably connected to a third rod via a round shaft, and the third rod is rotatably connected to one end of an adjacent second rod.

[0011] Furthermore, the driving mechanism includes a jet seat fixedly connected to the side wall of the bracket plate, and a telescopic airbag is fixedly connected between two adjacent sliders, wherein a telescopic airbag is fixedly connected to the bottom wall of one of the sliders, and the bottom end of the telescopic airbag located on the bottom wall of the slider is fixedly connected to the inner wall of the first groove, and each of the inner walls of the telescopic airbags is fixedly connected with a one-way air inlet pipe and a one-way air outlet pipe, and the other end of each one-way air outlet pipe is fixedly connected to the corresponding jet seat.

[0012] Furthermore, the driving mechanism also includes a third groove opened on the top wall of the base, a micro motor is fixedly connected to the inner wall of the third groove, a gear is fixedly connected to the output end of the micro motor, a plurality of convex holes are symmetrically opened on the inner wall of the third groove, a lower rack is slidably connected to the inner walls of two symmetrically arranged convex holes, one end of each lower rack is fixedly connected to a cleaning plate, a cleaning bristle is fixedly installed on the bottom of the cleaning plate, and one end of the plurality of lower racks is fixedly connected via a connecting plate.

[0013] Furthermore, a sliding hole is provided on the top wall of the third groove, an upper rack is slidably connected to the inner wall of the sliding hole, a cover plate is fixedly connected to the top wall of the upper rack, the cover plate is slidably connected to the top of the base, and the gear is meshingly connected with the upper rack and the lower rack.

[0014] Furthermore, a water storage tank is opened on the top wall of the base, a filter is fixedly installed on the top wall of the water storage tank, a micro pump body is fixedly connected to the inner wall of the third groove, a plurality of box bodies are fixedly connected to the inner wall of the third groove, and a flushing nozzle is fixedly connected to the inner wall of each box body.

[0015] Furthermore, the input end of the micro pump body is fixedly connected to a water inlet pipe, the other end of the water inlet pipe is fixedly connected to a water storage tank, the output end of the micro pump body is fixedly connected to a water outlet pipe, the other end of the water outlet pipe is fixedly connected to multiple flushing nozzles.

[0016] Furthermore, a rain sensor is fixedly connected to the top wall of the cover plate, and the rain sensor is electrically connected to the drive motor, the forward and reverse motor, and the micro motor through the controller. A light sensor is fixedly connected to the top wall of the cover plate, and the light sensor is electrically connected to the drive motor through the controller.

[0017] The present invention has the following advantages:

[0018] 1. Under different lighting conditions, the light sensor and controller control the drive motor. The output end of the drive motor drives the rotating shaft fixedly connected to it to rotate. The rotating shaft drives each rotating rod and the bracket plate to rotate a certain angle through structures such as splines, worms, and worm gears. In a day when the sunlight angle keeps changing, the drive motor can also drive the bracket plate and the photovoltaic panel to rotate synchronously through structures such as the rotating shaft, worm gear, and worm gear, so that the photovoltaic panel obtains the best irradiation angle and improves the utilization conversion rate of light.

[0019] 2. When encountering rainy weather, the reciprocating screw, nut and multiple rod bodies are set up, the forward and reverse motors are turned on, and the output end of the forward and reverse motors drives the reciprocating screw to rotate, so that the slider at the top slides downward for a distance in the vertical direction, and the slider will drive multiple sliders to slide downward for a distance synchronously through the first rod, the second rod and the third rod, until the multiple sliders approach each other and enter the second groove;

[0020] 3. When the adjacent sliders approach each other, and the slider at the bottom approaches the inner wall of the second groove, multiple telescopic airbags will be squeezed, and then the gas inside the telescopic airbags will be squeezed into the corresponding jet seat through the one-way air outlet pipe and ejected. The high-speed ejected gas will blow away dust and other impurities on the surface of the photovoltaic panel installed on the bracket plate;

[0021] 4. After the multiple sliders drive the multiple photovoltaic panels into the second groove, the micro motor is turned on, and the output end of the micro motor drives the gear to rotate a certain angle, so that the upper rack will drive the cover plate fixedly connected to it to slide a certain distance until the cover plate covers the first groove and the second groove, thereby preventing external factors such as rain and strong wind from interfering with and damaging the use of the photovoltaic panels;

[0022] 5. Multiple lower racks will move synchronously under the action of the connecting plate, so that the cleaning plate fixedly connected to the bottom of one end of each lower rack slides to the upper part of the corresponding photovoltaic panel, and the cleaning bristles at the bottom of the cleaning plate brush and clean the photovoltaic panel, further improving the cleaning ability of impurities that are difficult to blow off on the surface of the photovoltaic panel;

[0023] 6. When the micro motor makes the multiple lower racks slide in the opposite direction for a distance, the micro pump body is turned on to pump the rainwater collected in the water tank to multiple flushing nozzles to flush the cleaning bristles at the bottom of the cleaning plate. The sewage after flushing is collected in the box body to avoid contamination of the inside of the third groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the appearance of a flexible bracket applied to a photovoltaic device proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the appearance of a flexible bracket applied to a photovoltaic device proposed by the present invention from another angle;

[0026] Figure 3 This is a schematic structural diagram of a flexible bracket applied to a photovoltaic device proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the structure inside a rectangular cavity in a flexible bracket applied to a photovoltaic device proposed by the present invention;

[0028] Figure 5 for Figure 4 A magnified schematic diagram of the structure of part A;

[0029] Figure 6 This is a schematic diagram of the structure inside the third groove in a flexible bracket applied to a photovoltaic device proposed by the present invention;

[0030] Figure 7 This is a schematic diagram of the meshing relationship among a gear, a lower rack and an upper rack in a flexible bracket for photovoltaic devices proposed by the present invention.

[0031] In the figure: 1 base, 2 vertical plate, 3 horizontal plate, 4 slider, 5 vertical hole, 6 rain sensor, 601 light sensor, 7 rectangular cavity, 8 drive motor, 9 rotating shaft, 10 spline, 11 worm, 12 worm wheel, 13 rotating rod, 14 bracket plate, 15 photovoltaic panel, 16 jet seat, 17 telescopic air bag, 18 one-way air outlet pipe, 19 through hole, 20 nut, 21 forward and reverse motor, 22 reciprocating screw, 23 round rod, 24 first rod, 25 cylinder, 26 second rod, 27 third rod, 28 round shaft, 29 second groove, 30 third groove, 31 micro motor, 32 gear, 33 cover plate, 34 upper rack, 35 lower rack, 36 cleaning plate, 37 connecting plate, 38 convex hole, 39 sliding hole, 40 water storage tank, 41 micro pump body, 42 box body, 43 flushing nozzle, 44 first groove. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0033] Reference Figure 1-Figure 7 A flexible bracket for photovoltaic devices includes a base 1 and a photovoltaic panel 15. The top wall of the base 1 is provided with a second groove 29. The top wall of the base 1 is fixedly connected with a vertical plate 2. The top side wall of the vertical plate 2 is fixedly connected with a horizontal plate 3. The side wall of the vertical plate 2 is slidably connected with a plurality of sliders 4. A rectangular cavity 7 is provided on the inner wall of each slider 4. A rotating rod 13 is rotatably connected to the inner wall of each rectangular cavity 7. The end of the rotating rod 13 fixed to the worm gear 12 is made of hard material, while the end of the rotating rod 13 fixed to the bracket plate 14 is made of flexible material. The end of each rotating rod 13 away from the rectangular cavity 7 is fixedly connected with the bracket plate 14, and the photovoltaic panel 15 is installed and fixed on the side wall of the bracket plate 14; a control mechanism for adjusting the angle of the bracket plate 14 is provided on the base 1; a driving mechanism for cleaning the surface of the photovoltaic panel 15 is provided in the base 1.

[0034] A first groove 44 is provided on the top wall of the base 1, and a vertical hole 5 is provided on the inner wall of the first groove 44. The rotating rod 13 is slidably connected in the vertical hole 5. The inner wall of the first groove 44 is fixedly connected to a driving motor 8 through a supporting block. The output end of the driving motor 8 is fixedly connected to a rotating shaft 9, and a spline 10 is fixedly connected to the side wall of the rotating shaft 9. The spline 10 and the side wall of the rotating shaft 9 are slidably connected to multiple worms 11. A worm 11 is provided in each rectangular cavity 7, and one end of each rotating rod 13 away from the bracket plate 14 is fixedly connected to a worm wheel 12, and each worm wheel 12 is meshed with an adjacent worm wheel 11. The output end of the driving motor 8 drives the rotating shaft 9 fixedly connected thereto to rotate, and then the rotating shaft 9 drives the multiple worm wheels 12 to rotate synchronously through the spline 10 and the multiple worm wheels 11. Then, each worm wheel 12 will drive the rotating rod 13 fixedly connected to its side wall to rotate a certain angle, and then each rotating rod 13 will drive the bracket plate 14 fixedly connected at one end thereof to rotate a certain angle, and the bracket plate 14 drives the photovoltaic panel 15 installed on its side wall to rotate.

[0035] A through hole 19 is formed on the inner wall of each slider 4, a nut 20 is fixedly connected to the top wall of the slider 4 at the uppermost end, a forward and reverse motor 21 is fixedly connected to the inner wall of the first groove 44, a reciprocating screw 22 is fixedly connected to the output end of the forward and reverse motor 21, the reciprocating screw 22 passes through a plurality of through holes 19 in sequence, and the nut 20 is threadedly connected to the side wall of the reciprocating screw 22.

[0036] The side wall of the slider 4 located at the uppermost end is rotatably connected to the first rod 24 via a round rod 23, and each other side wall of the slider 4 is rotatably connected to the second rod 26 via a cylinder 25. The first rod 24 is rotatably connected to one end of an adjacent second rod 26, and the two adjacent second rods 26 are rotatably connected end to end. The inner wall of the first groove 44 is rotatably connected to the third rod 27 via a round shaft 28, and the third rod 27 is rotatably connected to one end of an adjacent second rod 26.

[0037] The driving mechanism includes an injection seat 16 fixedly connected to the side wall of the bracket plate 14, a telescopic airbag 17 is fixedly connected between two adjacent sliders 4, the bottom wall of the slider 4 located at the lowest end is fixedly connected to the telescopic airbag 17, the bottom end of the telescopic airbag 17 on the bottom wall of the slider 4 located at the lowest end is fixedly connected to the inner wall of the first groove 44, each telescopic airbag 17 inner wall is penetrated and fixedly connected with a one-way air inlet pipe and a one-way air outlet pipe 18, the other end of each one-way air outlet pipe 18 is fixedly connected to the corresponding injection seat 16, the one-way air inlet pipe only allows external gas to enter the inside of the telescopic airbag 17, and the one-way air outlet pipe 18 only allows the gas inside the telescopic airbag 17 to be squeezed into the injection seat 16 and ejected, the telescopic airbag 17 is made of elastic material, and can be telescopically changed along its axis.

[0038] The driving mechanism also includes a third groove 30 opened on the top wall of the base 1, a micro motor 31 is fixedly connected to the inner wall of the third groove 30, a gear 32 is fixedly connected to the output end of the micro motor 31, a plurality of convex holes 38 are symmetrically opened on the inner wall of the third groove 30, a lower rack 35 is slidably connected to the inner walls of two symmetrically arranged convex holes 38, a cleaning plate 36 can pass through one of the convex holes 38 and slide in the second groove 29 and the third groove 30, a cleaning plate 36 is fixedly connected to the bottom wall of one end of each lower rack 35, a cleaning bristle is fixedly installed on the bottom of the cleaning plate 36, and one end of the plurality of lower racks 35 is fixedly connected via a connecting plate 37.

[0039] The top wall of the third groove 30 is symmetrically provided with sliding holes 39, the inner wall of the sliding hole 39 is slidably connected with an upper rack 34, the top wall of the upper rack 34 is fixedly connected with a cover plate 33, the cover plate 33 is slidably connected to the top of the base 1, and the gear 32 is meshedly connected with the upper rack 34 and the lower rack 35.

[0040] A water storage tank 40 is provided on the top wall of the base 1, and a filter is fixedly installed on the top wall of the water storage tank 40. The water storage tank 40 can collect rainwater, and the filter can filter external impurities. A micro pump body 41 is fixedly connected to the inner wall of the third groove 30, and a plurality of box bodies 42 are fixedly connected to the inner wall of the third groove 30. A flushing nozzle 43 is fixedly connected to the inner wall of each box body 42, and the flushing nozzle 43 is arranged at an angle.

[0041] The input end of the micro pump body 41 is fixedly connected to a water inlet pipe, the other end of the water inlet pipe is fixedly connected to the water storage tank 40, the output end of the micro pump body 41 is fixedly connected to a water outlet pipe, the other end of the water outlet pipe is fixedly connected to multiple flushing nozzles 43 through a multi-pipe joint, and the multi-pipe joint is a pipe joint with a single tube at one end and multiple tubes at the other end.

[0042] A rain sensor 6 is fixedly connected to the top wall of the cover plate 33, and the rain sensor 6 is electrically connected to the drive motor 8, the forward and reverse motor 21, and the micro motor 31 through the controller. A light sensor 601 is fixedly connected to the top wall of the cover plate 33, and the light sensor 601 is electrically connected to the drive motor 8 through the controller.

[0043] In the present invention, under different lighting conditions in a day, the light sensor 601 and the controller control the drive motor 8, and the output end of the drive motor 8 drives the rotating shaft 9 fixedly connected to it to rotate, and then the rotating shaft 9 drives multiple worm gears 12 to rotate synchronously through the spline 10 and multiple worm gears 11. Then, each worm gear 12 will drive the rotating rod 13 fixedly connected to its side wall to rotate a certain angle, and then each rotating rod 13 will drive the bracket plate 14 fixedly connected at one end to rotate a certain angle. Then, during a day when the sunlight angle keeps changing, under the action of the light sensor 601 and the controller, the drive motor 8 can also drive the bracket plate 14 and the photovoltaic panel 15 to rotate synchronously through structures such as the rotating shaft 9, the worm gear 12 and the worm gear 11, so that the photovoltaic panel 15 obtains the best illumination angle.

[0044] When it rains or other weather conditions, under the action of the rain sensor 6 and the controller, or when the multiple photovoltaic panels 15 are stored in the second groove 29 by human control, the drive motor 8 is first turned on, and the drive motor 8 drives the multiple bracket plates 14 and the photovoltaic panels 15 to rotate a certain angle through the structures such as the spline 10, the worm 11 and the worm gear 12, until each bracket plate 14 and the photovoltaic panel 15 are parallel to the upper surface of the base 1, and then the forward and reverse motor 21 is turned on, and the output end of the forward and reverse motor 21 drives the reciprocating screw 22 to rotate, and the top wall of the slider 4 at the uppermost end is fixedly connected with a nut 20, then the nut 2 0 will drive the slider 4 at the uppermost end to slide downward for a certain distance in the vertical direction, and the slider 4 will drive the second rod 26 rotatably connected thereto to rotate a certain angle with the cylinder 25 as the center through the first rod 24, and then the second rod 26 will drive another second rod 26 rotatably connected thereto to rotate a certain angle, until the second rod 26 at the lowermost side drives the third rod 27 rotatably connected thereto to rotate a certain angle. In this process, the cylinder 25 will drive the slider 4 connected thereto to slide downward for a certain distance, until multiple sliders 4 approach each other and enter the second groove 29.

[0045] In the above process, when adjacent sliders 4 approach each other and the slider 4 at the bottom approaches the inner wall of the second groove 29, multiple telescopic airbags 17 will be squeezed, and then the gas inside the telescopic airbags 17 will be squeezed into the corresponding jet seat 16 through the one-way air outlet pipe 18 and sprayed out. Each jet seat 16 has a plurality of nozzles on its side wall, and the gas is sprayed out at high speed through the plurality of nozzles to blow away dust and other impurities on the surface of the photovoltaic panel 15 installed on the bracket plate 14.

[0046] After the multiple sliders 4 drive the multiple photovoltaic panels 15 into the second groove 29, the micro motor 31 is turned on, and the output end of the micro motor 31 drives the gear 32 to rotate a certain angle, and the gear 32 drives the upper rack 34 and the lower rack 35 meshing with it to slide a certain distance respectively, then the upper rack 34 will drive the cover plate 33 fixedly connected to it to slide a certain distance until the cover plate 33 covers the first groove 44 and the second groove 29, so as to prevent external factors such as rain and strong wind from interfering with and damaging the use of the photovoltaic panel 15.

[0047] The lower rack 35 meshing with the gear 32 will slide in the direction close to the second groove 29, and multiple lower racks 35 will move synchronously under the action of the connecting plate 37, so that the cleaning plate 36 fixedly connected to the bottom of one end of each lower rack 35 slides to the upper part of the corresponding photovoltaic panel 15, and the cleaning bristles provided at the bottom of the cleaning plate 36 brush and clean the photovoltaic panel 15, further improving the cleaning ability of the impurities on the surface of the photovoltaic panel 15 that are difficult to blow off.

[0048] The micro motor 31 is a forward and reverse motor. When the output end of the micro motor 31 rotates in the opposite direction, causing the multiple lower racks 35 to slide in the opposite direction for a certain distance, the micro pump body 41 is turned on at this time. The micro pump body 41 pumps the rainwater collected in the water tank 40 to multiple flushing nozzles 43 for spraying, flushing the cleaning bristles at the bottom of the cleaning plate 36. The sewage after flushing is collected in the box body 42 to avoid contamination of the inside of the third groove 30.

[0049] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flexible bracket for a photovoltaic device, comprising a base (1) and a photovoltaic panel (15), characterized in that: The top wall of the base (1) is provided with a second groove (29), the top wall of the base (1) is fixedly connected with a vertical plate (2), the top side wall of the vertical plate (2) is fixedly connected with a horizontal plate (3), the side wall of the vertical plate (2) is slidably connected with a plurality of sliders (4), the inner wall of each slider (4) is provided with a rectangular cavity (7), the inner wall of each rectangular cavity (7) is rotatably connected with a rotating rod (13), the end of each rotating rod (13) away from the rectangular cavity (7) is fixedly connected with a bracket plate (14), and the photovoltaic panel (15) is mounted and fixed on the side wall of the bracket plate (14); The base (1) is provided with a control mechanism for adjusting the angle of the bracket plate (14); The base (1) is provided with a driving mechanism for cleaning the surface of the photovoltaic panel (15).

2. A flexible bracket for photovoltaic devices according to claim 1, characterized in that: The top wall of the base (1) is provided with a first groove (44), the inner wall of the first groove (44) is provided with a vertical hole (5), the inner wall of the first groove (44) is fixedly connected to a driving motor (8) via a supporting block, the output end of the driving motor (8) is fixedly connected to a rotating shaft (9), the side wall of the rotating shaft (9) is fixedly connected to a spline (10), the spline (10) and the side wall of the rotating shaft (9) are slidably connected to a plurality of worms (11), one end of each rotating rod (13) away from the bracket plate (14) is fixedly connected to a worm wheel (12), and each worm wheel (12) is meshingly connected to an adjacent worm wheel (11).

3. A flexible bracket for photovoltaic devices according to claim 2, characterized in that: A through hole (19) is provided on the inner wall of each slider (4), a nut (20) is fixedly connected to the top wall of one of the sliders (4), a forward and reverse motor (21) is fixedly connected to the inner wall of the first groove (44), a reciprocating screw (22) is fixedly connected to the output end of the forward and reverse motor (21), the reciprocating screw (22) passes through a plurality of through holes (19) in sequence, and the nut (20) is threadedly connected to the side wall of the reciprocating screw (22).

4. A flexible bracket for photovoltaic devices according to claim 3, characterized in that: One of the side walls of the slider (4) is rotatably connected to a first rod (24) via a round rod (23), and each of the other side walls of the slider (4) is rotatably connected to a second rod (26) via a cylinder (25); the first rod (24) is rotatably connected to one end of an adjacent second rod (26), and two adjacent second rods (26) are rotatably connected end to end; the inner wall of the first groove (44) is rotatably connected to a third rod (27) via a round shaft (28), and the third rod (27) is rotatably connected to one end of an adjacent second rod (26).

5. A flexible bracket for photovoltaic devices according to claim 4, characterized in that: The driving mechanism comprises an injection seat (16) fixedly connected to the side wall of the bracket plate (14); a telescopic airbag (17) is fixedly connected between two adjacent sliders (4); a telescopic airbag (17) is fixedly connected to the bottom wall of one of the sliders (4); the bottom end of the telescopic airbag (17) located on the bottom wall of the slider (4) is fixedly connected to the inner wall of the first groove (44); a one-way air inlet pipe and a one-way air outlet pipe (18) are fixedly connected through the inner wall of each telescopic airbag (17); and the other end of each one-way air outlet pipe (18) is fixedly connected to the corresponding injection seat (16).

6. A flexible bracket for photovoltaic devices according to claim 5, characterized in that: The driving mechanism further comprises a third groove (30) formed on the top wall of the base (1); a micro motor (31) is fixedly connected to the inner wall of the third groove (30); a gear (32) is fixedly connected to the output end of the micro motor (31); a plurality of convex holes (38) are symmetrically formed on the inner wall of the third groove (30); a lower rack (35) is slidably connected to the inner walls of two symmetrically arranged convex holes (38); a cleaning plate (36) is fixedly connected to the bottom wall of one end of each lower rack (35); cleaning bristles are fixedly mounted on the bottom of the cleaning plate (36); and one end of the plurality of lower racks (35) is fixedly connected via a connecting plate (37).

7. A flexible bracket for photovoltaic devices according to claim 6, characterized in that: The top wall of the third groove (30) is symmetrically provided with sliding holes (39), the inner wall of the sliding hole (39) is slidably connected to an upper rack (34), the top wall of the upper rack (34) is fixedly connected to a cover plate (33), the cover plate (33) is slidably connected to the top of the base (1), and the gear (32) is meshingly connected to the upper rack (34) and the lower rack (35).

8. The flexible bracket for photovoltaic devices according to claim 7, characterized in that: The top wall of the base (1) is provided with a water storage tank (40), a filter screen is fixedly mounted on the top wall of the water storage tank (40), a micro pump body (41) is fixedly connected to the inner wall of the third groove (30), a plurality of box bodies (42) are fixedly connected to the inner wall of the third groove (30), and a flushing nozzle (43) is fixedly connected to the inner wall of each box body (42).

9. A flexible bracket for photovoltaic devices according to claim 8, characterized in that: The input end of the micro pump body (41) is fixedly connected to a water inlet pipe, the other end of the water inlet pipe is fixedly connected to a water storage tank (40), and the output end of the micro pump body (41) is fixedly connected to a water outlet pipe, the other end of the water outlet pipe is fixedly connected to a plurality of flushing nozzles (43).

10. A flexible bracket for photovoltaic devices according to claim 9, characterized in that: A rain sensor (6) is fixedly connected to the top wall of the cover plate (33), and the rain sensor (6) is electrically connected to the drive motor (8), the forward and reverse motor (21), and the micro motor (31) through a controller. A light sensor (601) is fixedly connected to the top wall of the cover plate (33), and the light sensor (601) is electrically connected to the drive motor (8) through a controller.

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