Distributed photovoltaic grid-connected protection equipment

Abstract

The invention belongs to the technical field of photovoltaic panels, and discloses distributed photovoltaic grid-connected protection equipment which comprises supporting legs, a supporting plate is fixedly connected to the interior of one supporting leg, a driving motor is fixedly connected to the top of the supporting plate, a second mounting block is fixedly connected to one side of the supporting leg, and the second mounting block is fixedly connected to the other side of the supporting leg. The output end of the driving motor is fixedly connected with a rotating shaft, the rotating shaft penetrates through the supporting leg and the second mounting block, and a fixing block is arranged at the top of the supporting leg. The driving motor is started to drive the rotating shaft to rotate, and after the rotating shaft rotates, the photovoltaic panel is driven to rotate through a series of transmission, so that the optimal illumination angle can be obtained according to the irradiation angle of sunlight, light energy can be absorbed to the maximum extent, the photoelectric conversion efficiency is improved, and more solar energy is converted into electric energy.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic panels, and specifically relates to a distributed photovoltaic grid-connected protection device. Background Art

[0002] With the development and progress of society, the sustainable development of the environment and resources has attracted increasing attention, and the utilization of new energy has become increasingly important. The process of solar photovoltaic power generation is simple, without mechanical rotating parts, does not consume fuel, does not emit any substances including greenhouse gases, is noise-free and pollution-free. Moreover, solar energy resources are widely distributed and inexhaustible. Therefore, compared with new power generation technologies such as wind power generation, biomass power generation, and nuclear power generation, photovoltaic power generation is a renewable energy power generation technology with the most ideal characteristics of sustainable development.

[0003] In existing photovoltaic panel protection devices, the photovoltaic panel is usually fixed to the support frame, and the photovoltaic panel may not be effectively adjusted according to the direct sunlight angle. During the actual working process, the installation and power generation efficiency of the photovoltaic panel are limited. Secondly, in the existing photovoltaic grid connection, since the photovoltaic panel converts solar energy into electrical energy through light, during the conversion process, due to the fixation of the photovoltaic panel, dust will exist on its surface, resulting in serious reduction of power generation efficiency when absorbing solar energy. Although the existing photovoltaic panel protection device will wash away the dust attached to its surface through a flushing device, so that the dust will be guided from the upper end of the photovoltaic panel to the bottom end during water cleaning. During this process, due to the accumulation of sediment at the bottom, simple water diversion cannot take away all the sediment deposited at the bottom, and these sediments will strongly adhere to the surface of the photovoltaic panel, thus greatly affecting the power generation capacity of the photovoltaic panel. Summary of the Invention

[0004] The purpose of the present invention is to provide a distributed photovoltaic grid-connected protection device to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A distributed photovoltaic grid-connected protection device, including two sets of support legs, wherein a support plate is fixedly connected inside one of the support legs, a driving motor is fixedly connected to the top of the support plate, a second mounting block is fixedly connected to one side of the support leg, an output end of the driving motor is fixedly connected to a rotating shaft, the rotating shaft penetrates through the support leg and the second mounting block, a fixing block is arranged at the top of the support leg, a rotating column is rotatably connected inside the fixing block, belt pulleys are fixedly connected to the outer sides of the rotating column and the rotating shaft, belts are sleeved on the outer sides of the two belt pulleys, and the two belt pulleys are connected by the belts. A first mounting block is fixedly connected to one side of the fixing block, a first gear located inside the first mounting block is fixedly connected to one end of the rotating column away from the belt pulley, a second gear meshes with the top of the first gear, a fixing column fixedly connected to the first mounting block is movably sleeved inside the second gear, a toothed ring meshes with the top of the second gear, a rotating block rotatably connected to the first mounting block is fixedly connected inside the toothed ring, limiting card slots are formed on both sides inside the rotating block, a strengthening component is arranged on one side of the top of the support leg, a quick-release component is arranged on the top of the support leg, and a cleaning component is arranged at the upper ends of the opposite sides of the two support legs.

[0006] Preferably, a fixing card block is fixedly connected to one side of the first mounting block, a second support rod is movably sleeved outside the fixing card block, and a strengthening plate is fixedly sleeved on the outer side of the second support rod.

[0007] Preferably, the strengthening component includes two first connecting plates, both of the first connecting plates are fixedly connected to the tops of the two sets of support legs, two sets of second connecting plates are fixedly connected to the tops of the two first connecting plates, fixing rings are fixedly connected to the tops of one set of the second connecting plates, a rotating ring is movably sleeved inside the fixing ring, a first support rod is clamped inside the rotating ring, a plurality of third fixing plates are fixedly connected to the bottom of the first support rod, the other second connecting plate is fixedly connected to the first mounting block, and strengthening ribs are fixedly connected to both sides of the second connecting plate.

[0008] Preferably, the quick-release component includes a plurality of first fixing plates, the plurality of first fixing plates are all fixedly connected to the top of the first support rod, H-shaped fixing plates are fixedly connected to the tops of the plurality of first fixing plates, Z-shaped fixing plates are arranged on both sides of the plurality of H-shaped fixing plates, trapezoidal blocks are fixedly connected to both sides of the tops of the plurality of Z-shaped fixing plates, threaded columns are arranged on the tops of the plurality of trapezoidal blocks, and the threaded columns are in threaded connection with the H-shaped fixing plates.

[0009] Preferably, the cleaning assembly includes a photovoltaic panel disposed on top of the plurality of H-shaped fixing plates. The top of the first support rod is fixedly connected to a water storage tank. One end of a first water pipe is fixedly connected to one side of the water storage tank, and the other end of the first water pipe is fixedly connected to a flow blocking block. A plurality of water return openings are formed on one side of the flow blocking block. Flow blocking plates are fixedly connected to both sides of the flow blocking block. A second fixing plate is fixedly connected to one side of the flow blocking block. An electric push rod is fixedly connected to the top of the second fixing plate, and the output end of the electric push rod is fixedly connected to a cleaning block, the bottom of which is in contact with the surface of the photovoltaic panel.

[0010] Preferably, the cleaning assembly further includes two water pumps, both of which are fixedly connected to one side of the water storage tank. One end of a second water pipe is fixedly connected to one side of each of the two water pumps. The other end of the second water pipe is fixedly connected to a support block, which is fixedly connected to the first fixing plate. The other ends of the two second water pipes are both fixedly connected to a tee joint, and the outlet ends of the two tee joints are both fixedly connected to a spray head, which is fixedly connected to the support block.

[0011] Preferably, connecting rods are fixedly connected to both sides of the two first connecting plates. The middle parts on both sides of the top of the connecting rods are fixedly connected to ejector rods. The positions of the two ejector rods and the middle sections of the bottoms of the two water pumps are on the same vertical axis. The two ends of the third fixing plate are respectively fixedly connected to the support block and the flow blocking block.

[0012] Preferably, the plurality of spray heads are arranged at an angle with the top plane of the photovoltaic panel, and the cleaning block is arranged parallel to the top surface of the photovoltaic panel.

[0013] The beneficial effects of the present invention are as follows: 1. In the present invention, when the drive motor is started, the rotating shaft rotates. The rotation of the rotating shaft drives the rotating column to rotate through the belt pulley and the belt. The rotation of the rotating column drives the first gear to rotate. The rotation of the first gear drives the second gear to rotate. The rotation of the second gear drives the toothed ring to rotate. The rotation of the toothed ring drives the rotating block to rotate inside the first mounting block. Since the second support rod inside it is clamped with the rotating block through the limit card slot, the rotation of the rotating block will drive the second support rod and the first support rod to rotate. The rotation of the first support rod drives the photovoltaic panel to rotate, so that the best illumination angle can be obtained according to the illumination angle of the sun, achieving the maximum absorption of light energy, thereby improving the photoelectric conversion efficiency and converting more solar energy into electric energy; 2. In the present invention, the second support rod is inserted into the internal limit card slot. At this time, the protrusion inside the second support rod cooperates with the card slot of the fixed block, so as to fix the second support rod. The extended use of multiple second support rods can be realized. Multiple second support rods and photovoltaic panels can be installed as needed to meet different scale requirements, avoiding the economic pressure brought by large-scale investment at one time. And due to the existence of the limit card slot, the newly installed photovoltaic panels can rotate synchronously, avoiding additional adjustment. The staff can adjust the orientation and angle of all photovoltaic panels in time according to the preset program or real-time weather data, which can greatly reduce the workload of manual operation and improve the management efficiency; 3. In the present invention, when the photovoltaic panel rotates, the bottom pressure switch contacts the ejector rod, thereby starting the water pump. After the water pump is started, the water in the water storage tank is transported to the inside of the spray head through the second water pipe and the three-way pipe, and then sprayed out through the spray head, so as to clean the photovoltaic panel. At this time, after the water flows out, the electric push rod starts to clean the dust washed to one side of the photovoltaic panel, avoiding the accumulation of dust on one side of the photovoltaic panel, so that the photovoltaic panel can generate electricity better during light irradiation, avoiding the influence on the power generation efficiency due to dust blockage. And when the water flows to the other side, it can flow back into the inside of the water storage tank through the water return port and the first water pipe, realizing repeated use after sedimentation of sediment, avoiding waste of water resources, and at the same time greatly reducing the number of times of manually adding water, improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is of the present invention Figure 1 The enlarged view of the structure at A in; Figure 3 is a schematic diagram of the bottom view structure of the overall structure of the present invention; Figure 4 is a schematic diagram of the side structure of the overall structure of the present invention; Figure 5 is a cross-sectional view of the inside of the first mounting block of the present invention; Figure 6 is of the present invention Figure 5 The enlarged view at B in; Figure 7 is a schematic diagram of the structure of the fixed block of the present invention; Figure 8 is a schematic diagram of the structure of the cleaning block of the present invention; Figure 9 is a schematic diagram of the cleaning assembly structure of the present invention; Figure 10 is a cross-sectional view of the inside of the support block of the present invention.

[0015] In the figure: 1, support leg; 2, first connecting plate; 3, second connecting plate; 4, fixing ring; 5, rotating ring; 6, first support rod; 7, reinforcing rib; 8, support plate; 9, driving motor; 10, rotating shaft; 11, fixing block; 12, rotating column; 13, belt pulley; 14, belt; 15, first mounting block; 16, first gear; 17, second gear; 18, fixing column; 19, toothed ring; 20, rotating block; 21, limit card slot; 22, fixing card block; 23, reinforcing plate; 24, second support rod; 25, second mounting block; 26, first fixing plate; 27, H-shaped fixing plate; 28, Z-shaped fixing plate; 29, trapezoidal block; 30, threaded column; 31, photovoltaic panel; 32, water storage tank; 33, first water pipe; 34, flow blocking block; 35, water return port; 36, flow blocking plate; 37, second fixing plate; 38, electric push rod; 39, cleaning block; 40, water pump; 41, second water pipe; 42, support block; 43, three-way pipe; 44, water spray head; 45, connecting rod; 46, ejector rod; 47, third fixing plate. Detailed implementation manner

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0017] Such as Figures 1 to 10As shown in the figure, an embodiment of the present invention provides a distributed photovoltaic grid-connected protection device, including two groups of support legs 1. Inside one of the support legs 1, a support plate 8 is fixedly connected. On the top of the support plate 8, a driving motor 9 is fixedly connected. On one side of the support leg 1, a second mounting block 25 is fixedly connected. The output end of the driving motor 9 is fixedly connected with a rotating shaft 10. The rotating shaft 10 penetrates through the support leg 1 and the second mounting block 25. On the top of the support leg 1, a fixed block 11 is arranged. Inside the fixed block 11, a rotating column 12 is rotatably connected. On the outer sides of the rotating column 12 and the rotating shaft 10, belt pulleys 13 are fixedly connected. A belt 14 is sleeved on the outer sides of the two belt pulleys 13. The two belt pulleys 13 are connected by the belt 14. On one side of the fixed block 11, a first mounting block 15 is fixedly connected. The end of the rotating column 12 far from the belt pulley 13 is fixedly connected with a first gear 16 located inside the first mounting block 15. A second gear 17 is meshed with the top of the first gear 16. Inside the second gear 17, a fixed column 18 fixedly connected with the first mounting block 15 is movably sleeved. A toothed ring 19 is meshed with the top of the second gear 17. Inside the toothed ring 19, a rotating block 20 rotatably connected with the first mounting block 15 is fixedly connected. On both sides inside the rotating block 20, limit card slots 21 are opened. On one side of the top of the support leg 1, a strengthening component is arranged. On the top of the support leg 1, a quick-release component is arranged. On the upper ends of the opposite sides of the two support legs 1, a cleaning component is arranged. On one side of the first mounting block 15, a fixed clamping block 22 is fixedly connected. The outer part of the fixed clamping block 22 is movably sleeved with a second support rod 24. On the outer side of the second support rod 24, a strengthening plate 23 is fixedly sleeved. By starting the driving motor 9 to drive the rotating shaft 10 to rotate, the rotation of the rotating shaft 10 drives the rotating column 12 to rotate through the belt pulleys 13 and the belt 14. The rotation of the rotating column 12 drives the first gear 16 to rotate. The rotation of the first gear 16 drives the second gear 17 to rotate. The rotation of the second gear 17 drives the toothed ring 19 to rotate. The rotation of the toothed ring 19 drives the rotating block 20 to rotate inside the first mounting block 15. Since the second support rod 24 inside it is clamped with the rotating block 20 through the limit card slot 21, the rotation of the rotating block 20 will drive the second support rod 24 and the first support rod 6 to rotate. The rotation of the first support rod 6 drives the photovoltaic panel 31 to rotate. Thus, according to the irradiation angle of sunlight, the best inclination angle can be controlled to be achieved, so as to obtain the best illumination angle, realize the maximum absorption of light energy, and further improve the photoelectric conversion efficiency, and convert more solar energy into electric energy.

[0018] Among them, the strengthening component includes two first connecting plates 2, both of the two first connecting plates 2 are fixedly connected to the tops of two groups of support legs 1, two groups of second connecting plates 3 are fixedly connected to the tops of the two first connecting plates 2, fixing rings 4 are fixedly connected to the tops of one group of second connecting plates 3, a rotating ring 5 is movably sleeved inside the fixing ring 4, a first support rod 6 is clamped inside the rotating ring 5, a plurality of third fixing plates 47 are fixedly connected to the bottom of the first support rod 6, the other second connecting plate 3 is fixedly connected to the first mounting block 15, and reinforcing ribs 7 are fixedly connected to both sides of the second connecting plate 3. The overall stability of the device is improved through the strengthening component, avoiding the fracture of connecting parts caused by bad weather such as strong winds, or being unable to work due to bad weather, reducing the downtime, enabling the power station to operate for more time, thereby ensuring the stable output of power generation, reducing the losses caused by downtime, at the same time avoiding the possibility of damage to the device due to bad weather, reducing the frequency of maintenance and replacement, reducing costs, and increasing economic benefits.

[0019] Among them, the quick-release component includes a plurality of first fixing plates 26, the plurality of first fixing plates 26 are all fixedly connected to the top of the first support rod 6, H-shaped fixing plates 27 are fixedly connected to the tops of the plurality of first fixing plates 26, Z-shaped fixing plates 28 are arranged on both sides of the plurality of H-shaped fixing plates 27, trapezoidal blocks 29 are fixedly connected to both sides of the tops of the plurality of Z-shaped fixing plates 28, threaded columns 30 are arranged on the tops of the plurality of trapezoidal blocks 29, and the threaded columns 30 are in threaded connection with the H-shaped fixing plates 27. By inserting the second support rod 24 into the internal limit card slot 21, at this time, the protrusion inside the second support rod 24 cooperates with the card slot of the fixed card block 22, so as to fix the second support rod 24, and the extended use of a plurality of second support rods 24 can be realized. A plurality of second support rods 24 and photovoltaic panels 31 can be added according to needs to adapt to different scale requirements, avoiding the economic pressure brought by large-scale investment at one time. And due to the existence of the limit card slot 21, the newly added photovoltaic panels 31 can rotate synchronously, avoiding additional adjustment. The staff can adjust the orientation and angle of all photovoltaic panels in time according to the preset program or real-time weather data. In this way, the workload of manual operation can be greatly reduced, and the management efficiency can be improved.

[0020] Among them, the cleaning component includes a photovoltaic panel 31, the photovoltaic panel 31 is arranged on the top of a plurality of H-shaped fixing plates 27, the top of the first support rod 6 is fixedly connected with a water storage tank 32, one end of a first water pipe 33 is fixedly connected to one side of the water storage tank 32, the other end of the first water pipe 33 is fixedly connected with a flow blocking block 34, a plurality of water return ports 35 are arranged on one side of the flow blocking block 34, flow blocking plates 36 are fixedly connected to both sides of the flow blocking block 34, a second fixing plate 37 is fixedly connected to one side of the flow blocking block 34, an electric push rod 38 is fixedly connected to the top of the second fixing plate 37, the output end of the electric push rod 38 is fixedly connected with a cleaning block 39, the bottom of the cleaning block 39 is in contact with the surface of the photovoltaic panel 31. The cleaning component further includes two water pumps 40, both of the two water pumps 40 are fixedly connected to one side of the water storage tank 32, one end of a second water pipe 41 is fixedly connected to one side of each of the two water pumps 40, the other end of the second water pipe 41 is fixedly connected with a support block 42, the support block 42 is fixedly connected with the first fixing plate 26, the other ends of the two second water pipes 41 are both fixedly connected with a three-way pipe 43, the outlet ends of the two three-way pipes 43 are both fixedly connected with a spray head 44, the spray head 44 is fixedly connected with the support block 42. By the rotation of the photovoltaic panel 31, the pressing switch at the bottom of the water pump 40 is brought into contact with the ejector rod 46, thereby starting the water pump 40. After the water pump 40 is started, the water inside the water storage tank 32 is transported to the inside of the spray head 44 through the second water pipe 41 and the three-way pipe 43, and then sprayed out through the spray head 44, thereby cleaning the photovoltaic panel 31. At this time, after the water flows out, the electric push rod 38 is started to clean the dust washed to one side of the photovoltaic panel 31, avoiding the accumulation of dust on one side of the photovoltaic panel 31, so that the photovoltaic panel 31 can generate electricity better when performing light irradiation power generation, avoiding the influence on the power generation efficiency due to dust blockage. And when the water flows to the other side, it can flow back into the inside of the water storage tank 32 through the water return port 35 and the first water pipe 33, realizing repeated use, avoiding the waste of water resources, and at the same time greatly reducing the number of times of manually adding water, improving the work efficiency.

[0021] Among them, connecting rods 45 are fixedly connected to both sides of the two first connecting plates 2, ejector rods 46 are fixedly connected to both sides of the middle part of the top of the connecting rods 45, the positions of the two ejector rods 46 and the middle sections of the bottoms of the two water pumps 40 are on the same vertical axis. The two ends of the third fixing plate 47 are fixedly connected with the support block 42 and the flow blocking block 34 respectively. Through the setting that the positions of the two ejector rods 46 and the middle sections of the bottoms of the two water pumps 40 are on the same vertical axis, the pressing switch at the bottom of the water pump 40 corresponds to the ejector rod 46, and the opening and closing of the pump body can be controlled by the rotation angle of the photovoltaic panel 31.

[0022] Among them, multiple water spray heads 44 are arranged at a 45-degree angle with the top plane of the photovoltaic panel 31. The cleaning block 39 is arranged in parallel on the top surface of the photovoltaic panel 31. By arranging the multiple water spray heads 44 at a 45-degree angle with the top plane of the photovoltaic panel 31, after the water flow is ejected, the angle with the photovoltaic panel 31 is prevented from being too small, thereby reducing the impact of the water flow on the photovoltaic panel 31 and protecting the photovoltaic panel 31.

[0023] Working principle: During the working process, the driving motor 9 is started to drive the rotating shaft 10 to rotate. The rotation of the rotating shaft 10 drives the rotating column 12 to rotate through the pulley 13 and the belt 14. The rotation of the rotating column 12 drives the first gear 16 to rotate. The rotation of the first gear 16 drives the second gear 17 to rotate. The rotation of the second gear 17 drives the toothed ring 19 to rotate. The rotation of the toothed ring 19 drives the rotating block 20 to rotate inside the first mounting block 15. Since the second support rod 24 inside it is clamped with the rotating block 20 through the limit card slot 21, the rotation of the rotating block 20 will drive the second support rod 24 and the first support rod 6 to rotate. The rotation of the first support rod 6 drives the photovoltaic panel 31 to rotate, so that the best illumination angle can be obtained according to the illumination angle of the sun, the light energy can be absorbed to the greatest extent, and then the photoelectric conversion efficiency can be improved, and more solar energy can be converted into electric energy.

[0024] In the existing bracket of the photovoltaic panel 31, it is usually placed after directly fixing the bracket and the photovoltaic panel 31. In this process, the photovoltaic panel 31 and the bracket are in a one-to-one binding state. When it is necessary to control the corresponding illumination angle, they need to be controlled to rotate separately, which is extremely cumbersome in the operation process and greatly reduces the work efficiency. In this application, by inserting the second support rod 24 into the inside of the limit card slot 21, at this time, the protrusion inside the second support rod 24 cooperates with the card slot of the fixed card block 22, so that the second support rod 24 can be fixed, and the extended use of multiple second support rods 24 can be realized. Multiple second support rods 24 and photovoltaic panels 31 can be added according to needs to adapt to different scale requirements, avoiding the economic pressure brought by large-scale investment at one time. And due to the existence of the limit card slot 21, the newly added photovoltaic panel 31 can rotate synchronously, avoiding additional adjustment. The staff can adjust the orientation and angle of all photovoltaic panels in time according to the preset program or real-time weather data, which can greatly reduce the workload of manual operation and improve the management efficiency.

[0025] When the photovoltaic panel 31 rotates according to the light, when it is evening and the sun is about to set, the photovoltaic panel 31 will also rotate to the limit position of rotation according to the angle of the light. At this time, the rotation of the photovoltaic panel 31 will cause the pressure switch at the bottom of the water pump 40 to contact the ejector rod 46, thereby starting the water pump 40. After the water pump 40 is started, the water inside the water storage tank 32 will be transported to the inside of the sprinkler head 44 through the second water pipe 41 and the three-way pipe 43, and then sprayed out through the sprinkler head 44, thereby cleaning the photovoltaic panel 31. At this time, after the water flows out, the electric push rod 38 is started to clean the dust washed to one side of the photovoltaic panel 31, avoiding the accumulation of dust on one side of the photovoltaic panel 31, so that the photovoltaic panel 31 can generate electricity better when generating electricity by light, avoiding affecting the power generation efficiency due to dust blockage, and when the water flows to the other side, it can flow back into the inside of the water storage tank 32 through the water return port 35 and the first water pipe 33 for reuse, avoiding waste of water resources, and at the same time greatly reducing the number of times of manually adding water, improving work efficiency.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distributed photovoltaic grid-connected protection device, comprising two sets of support legs (1), characterized in that: A support plate (8) is fixedly connected to the interior of one of the support legs (1), a drive motor (9) is fixedly connected to the top of the support plate (8), a second mounting block (25) is fixedly connected to one side of the support leg (1), a rotating shaft (10) is fixedly connected to the output end of the drive motor (9), the rotating shaft (10) passes through the support leg (1) and the second mounting block (25), a fixed block (11) is arranged on the top of the support leg (1), a rotating column (12) is rotatably connected to the interior of the fixed block (11), the rotating column (12) and the rotating shaft (10) are fixedly connected to pulleys (13) on the outside, two belt pulleys (13) are sleeved with belts (14) on the outside, the two belt pulleys (13) are connected via the belts (14), and one side of the fixed block (11) is fixedly connected to the second mounting block (25). A mounting block (15), wherein one end of the rotating column (12) away from the pulley (13) is fixedly connected to a first gear (16) located inside the first mounting block (15), a second gear (17) is meshed at the top of the first gear (16), a fixed column (18) fixedly connected to the first mounting block (15) is movably sleeved inside the second gear (17), a gear ring (19) is meshed at the top of the second gear (17), a rotating block (20) rotatably connected to the first mounting block (15) is fixedly connected inside the gear ring (19), and limiting slots (21) are provided on both sides of the rotating block (20), a reinforcing component is provided on one side of the top of the supporting leg (1), a quick-release component is provided on the top of the supporting leg (1), and a cleaning component is provided at the upper ends of the two supporting legs (1) on opposite sides.

2. A distributed photovoltaic grid-connected protection device according to claim 1, characterized in that: A fixed clamping block (22) is fixedly connected to one side of the first mounting block (15); a second support rod (24) is movably sleeved on the outside of the fixed clamping block (22); and a reinforcing plate (23) is fixedly sleeved on the outside of the second support rod (24).

3. A distributed photovoltaic grid-connected protection device according to claim 2, characterized in that: The reinforcing assembly comprises two first connecting plates (2), the two first connecting plates (2) are fixedly connected to the tops of the two groups of supporting legs (1), the two first connecting plates (2) are fixedly connected to the tops of the two groups of second connecting plates (3), one group of the second connecting plates (3) is fixedly connected to the top of a fixing ring (4), a rotating ring (5) is movably sleeved inside the fixing ring (4), a first supporting rod (6) is clamped inside the rotating ring (5), a plurality of third fixing plates (47) are fixedly connected to the bottom of the first supporting rod (6), another second connecting plate (3) is fixedly connected to the first mounting block (15), and reinforcing ribs (7) are fixedly connected to both sides of the second connecting plate (3).

4. A distributed photovoltaic grid-connected protection device according to claim 3, characterized in that: The quick-release assembly comprises a plurality of first fixing plates (26), the plurality of first fixing plates (26) are fixedly connected to the top of the first support rod (6), the tops of the plurality of first fixing plates (26) are fixedly connected to an H-shaped fixing plate (27), both sides of the plurality of H-shaped fixing plates (27) are provided with a Z-shaped fixing plate (28), both sides of the tops of the plurality of Z-shaped fixing plates (28) are fixedly connected to a trapezoidal block (29), the tops of the plurality of trapezoidal blocks (29) are provided with a threaded column (30), and the threaded column (30) is threadedly connected to the H-shaped fixing plate (27).

5. A distributed photovoltaic grid-connected protection device according to claim 4, characterized in that: The cleaning component comprises a photovoltaic panel (31), wherein the photovoltaic panel (31) is arranged on the top of the plurality of H-shaped fixed plates (27), the top of the first support rod (6) is fixedly connected to a water tank (32), one side of the water tank (32) is fixedly connected to one end of a first water pipe (33), the other end of the first water pipe (33) is fixedly connected to a flow block (34), one side of the flow block (34) is provided with a plurality of water return ports (35), both sides of the flow block (34) are fixedly connected to flow blocks (36), one side of the flow block (34) is fixedly connected to a second fixed plate (37), the top of the second fixed plate (37) is fixedly connected to an electric push rod (38), the output end of the electric push rod (38) is fixedly connected to a cleaning block (39), and the bottom of the cleaning block (39) is in contact with the surface of the photovoltaic panel (31).

6. A distributed photovoltaic grid-connected protection device according to claim 5, characterized in that: The cleaning assembly further comprises two water pumps (40), the two water pumps (40) being fixedly connected to one side of the water storage tank (32), one side of the two water pumps (40) being fixedly connected to one end of a second water pipe (41), the other end of the second water pipe (41) being fixedly connected to a support block (42), the support block (42) being fixedly connected to a first fixed plate (26), the other ends of the two second water pipes (41) being fixedly connected to a three-way pipe (43), the outlet ends of the two three-way pipes (43) being fixedly connected to a water spray head (44), the water spray head (44) being fixedly connected to the support block (42).

7. A distributed photovoltaic grid-connected protection device according to claim 6, characterized in that: Connecting rods (45) are fixedly connected to both sides of the two first connecting plates (2), and top rods (46) are fixedly connected to both sides of the middle of the top of the connecting rods (45), and the positions of the two top rods (46) and the middle sections of the bottoms of the two water pumps (40) are on the same vertical axis, and the two ends of the third fixing plate (47) are fixedly connected to the support block (42) and the baffle block (34) respectively.

8. The distributed photovoltaic grid-connected protection device according to claim 7 is characterized in that: The plurality of water spray heads (44) are arranged at an angle of 45 degrees to the top plane of the photovoltaic panel (31), and the cleaning block (39) is arranged parallel to the top surface of the photovoltaic panel (31).

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