A light steel structure surface treatment device

Abstract

The invention relates to the technical field of steel structure workshops, and specifically to a light steel structure surface treatment device, comprising a steel structure support and a roof body, a plurality of core assembly grooves are stamped and formed on the roof panel frame, a first, a second and a plurality of third grooves are respectively provided on the inner side of the core assembly groove, and a first rotating shaft is rotatably connected between the two sides of the first groove, a sponge is fixed to the outer wall of the circumference of the first rotating shaft in the same length direction, a second rotating shaft is rotatably connected between the two sides of the second groove, a cleaning brush is fixed to the outer wall of the circumference of the second rotating shaft in the same length direction, and a high-pressure nozzle is fixedly installed on the inner side of the third groove. When cleaning the curved photovoltaic panel, the driving motor can be remotely controlled, and the curved photovoltaic panel and the heating plate are rotated through the transmission of the driving component, and the dust is washed at the high-pressure nozzle, the stubborn stains are scrubbed at the cleaning brush, and the water stains are wiped at the sponge. Through these settings, automatic cleaning can be achieved to avoid dust obstruction, and the power generation efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure workshops, in particular to a light steel structure surface treatment device. Background Art

[0002] Steel structure is a structure made of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel and steel plates, and adopts rust removal and rust prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. The components or parts are usually connected by welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large factories, venues, super high-rise buildings, bridges and other fields.

[0003] For example, the Chinese invention patent authorization announcement number CN204081187U discloses a solar steel structure roof device, in which a layer of solar panels is arranged on the outer surface of the steel structure roof, and the electric energy obtained by the solar panels and wind power generation mechanism is transmitted to the battery for storage. The electric energy stored in the battery can be used for indoor chandeliers and gas stove mechanisms.

[0004] The above patents still have the following deficiencies in actual use: 1. Solar panels are exposed to the outdoors for a long time, and are subjected to wind, sun, rain, etc. Dust, bird droppings, leaves and other debris may accumulate on their surfaces, blocking sunlight, reducing the absorbed light energy, and causing a decrease in power generation efficiency; 2. In rainy and snowy weather, a large amount of snow piled up on the solar panels will increase their weight load, especially after a blizzard, which may cause the supporting structures such as the solar panel brackets to be under excessive pressure. If the brackets are not strong enough, there is a risk of deformation, damage or even collapse, affecting the normal use and life of the solar panels. Summary of the invention

[0005] In order to address the deficiencies in the prior art, the present invention provides a light steel structure surface treatment device, thereby solving the problem that the existing solar panels are exposed to the outdoors for a long time, subjected to wind, sun, rain, etc., and dust, bird droppings, leaves and other debris may accumulate on their surfaces, blocking sunlight, reducing the absorbed light energy, and causing a decrease in power generation efficiency. In addition, in rainy and snowy weather, a large amount of snow piled up on the solar panels will increase their weight load, especially after a blizzard, which may cause the supporting structures such as the solar panel brackets to be under excessive pressure. If the brackets are not strong enough, there is a risk of deformation, damage or even collapse, affecting the normal use and life of the solar panels.

[0006] The technical solution adopted by the present invention to solve its technical problems is a light steel structure surface treatment device, including a steel structure support and a roof body, the steel structure support includes a pair of steel structure beams, a plurality of auxiliary beams are connected between the pair of steel structure beams, a supporting column is connected to the middle of each auxiliary beam, and a plurality of supporting columns are connected to the top of a ridgepole, a driving assembly is arranged in the inner cavity of the ridgepole, and the roof body is connected to both sides of the ridgepole, the roof body includes an inclined roof panel frame, the roof panel frame is fixed to the side of the ridgepole, the bottom wall of the roof panel frame is connected to the steel structure beam on the same side, a plurality of rotating core assembly grooves are stamped on the roof panel frame, the rotating core assembly grooves are arranged at equal intervals, and the rotating core assembly grooves are arranged at equal intervals. The axial direction of the matching groove is consistent with the inclination direction of the roof panel frame, the rotating core assembly groove is a semi-cylindrical groove, and a rotating core with a matching size and diameter is provided in the rotating core assembly groove, the rotating core is rotatably connected to the rotating core assembly groove, the inner side of the rotating core assembly groove is respectively penetrated by a first slot, a second slot and a plurality of third slots, and a first rotating shaft is rotatably connected between the two sides of the first slot, a sponge is fixed to the outer wall of the circumference of the first rotating shaft in the same length direction, a second rotating shaft is rotatably connected between the two sides of the second slot, a cleaning brush is fixed to the outer wall of the circumference of the second rotating shaft in the same length direction, a high-pressure nozzle is fixedly installed on the inner side of the third slot, and multiple high-pressure nozzles are connected through a water pipe fixedly installed at the bottom of the roof panel frame.

[0007] Preferably, the rotating core includes a rotating shaft, a semi-circular curved photovoltaic panel is fixed to the outer wall on one side of the rotating shaft, a semi-circular heating plate is fixed to the outer wall on the other side of the rotating shaft, a connecting shaft is fixed to the side of the rotating shaft facing the spine, and the connecting shaft passes through the spine and extends to its inner cavity, a driven bevel gear is fixed to the end of the connecting shaft located in the inner cavity of the spine, and a first pulley is fixed to the outer wall of the middle circumference of the connecting shaft.

[0008] Preferably, the driving assembly includes a driving shaft rotatably connected to the inner cavity of the spine and a driving motor fixedly connected to the side wall of the spine, the output end of the driving motor passes through the spine and is fixedly connected to the driving shaft, and the outer wall of the driving shaft is fixed with a driving bevel gear corresponding to the driven bevel gears on both sides, and the driving bevel gear is meshed with the driven bevel gear.

[0009] Preferably, the second rotating shaft passes through the roof panel frame and the ridge beam and extends to the inner cavity of the ridge beam, and a second pulley is fixed to the end of the second rotating shaft located in the inner cavity of the ridge beam, and the second pulley is driven by the first pulley through a belt.

[0010] Preferably, a water tank is fixed on the upper surface of the ridge beam, a water pump is arranged in the inner cavity of the water tank, a water pipe passes through the roof panel frame and the ridge beam and extends to the inner cavity of the water tank, the water pump is connected to the water pipe, and a plurality of evenly distributed water collection holes are opened on the upper surface of the water tank.

[0011] Preferably, a water guide groove is provided between every two adjacent rotating core assembly grooves on the roof panel frame, and scraping edges are provided on the edges of the grooves on both sides of the rotating core assembly grooves.

[0012] Preferably, a control box is fixedly installed on the lower surface of the backbone, and a battery, an electric control module and a wireless transceiver module are arranged inside the control box. The battery and the electric control module are electrically connected to the curved photovoltaic panel, the heating plate, the water pump, and the drive motor respectively.

[0013] Beneficial effects of the present invention:

[0014] (1) In the present invention, in fine weather, the drive motor is remotely controlled to work, the output end of the drive motor drives the drive shaft to rotate, the drive shaft drives the active bevel gear to rotate, the active bevel gear drives the driven bevel gear meshing with it to rotate, the driven bevel gear drives the connecting shaft to rotate, the connecting shaft drives the rotating shaft to rotate, the rotating shaft drives the curved photovoltaic panel to switch to the external environment above, so that light energy can be collected and converted into electrical energy, and stored in the battery in the control box for subsequent use.

[0015] (2) In the present invention, when it is necessary to clean the curved photovoltaic panel, the drive motor is driven by remote control, the output end of the drive motor drives the drive shaft to rotate, the drive shaft drives the active bevel gear to rotate, the active main gear drives the driven bevel gear meshing with it to rotate, the driven bevel gear drives the connecting shaft to rotate, the connecting shaft drives the rotating shaft to rotate, the rotating shaft drives the curved photovoltaic panel and the heating plate to rotate, when the curved photovoltaic panel rotates to the high-pressure nozzle position, the high-pressure nozzle washes the dust attached to its outer surface, then when the curved photovoltaic panel rotates to the cleaning brush position, the cleaning brush scrubs the stubborn stains on its outer surface, finally when the curved photovoltaic panel rotates to the sponge wiper position, the sponge wiper wipes the water stains remaining on its surface, through the arrangement of the high-pressure nozzle, the cleaning brush and the sponge wiper, the curved photovoltaic panel can be automatically cleaned to avoid dust blocking the curved photovoltaic panel, thereby improving the power generation efficiency.

[0016] (3) In the present invention, in rainy and snowy weather, the drive motor is remotely controlled to work, the output end of the drive motor drives the drive shaft to rotate, the drive shaft drives the active bevel gear to rotate, the active main gear drives the driven bevel gear meshing with it to rotate, the driven bevel gear drives the connecting shaft to rotate, the connecting shaft drives the rotating shaft to rotate, the rotating shaft drives the heating plate to switch to the external environment above, and the curved photovoltaic panel switches to the inside of the rotating core assembly groove to protect the curved photovoltaic panel, the heating plate heats to melt the accumulated snow, and the normal use and life of the solar panel are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure inside the spine of the present invention;

[0020] Figure 3 It is a partial cross-sectional structural schematic diagram of the side of the present invention;

[0021] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle;

[0022] Figure 5 It is a structural schematic diagram of part of the present invention;

[0023] Figure 6 This is a schematic diagram of the internal structure of the rotating core assembly groove of the present invention;

[0024] Figure 7 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 8 For the present invention Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0026] Fig. 9 For the present invention Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0027] Fig.10 For the present invention Figure 6 Schematic diagram of the enlarged structure at D in the middle.

[0028] In the figure:

[0029] 1. Steel structure bracket; 11. Steel structure beam; 12. Sub-beam; 13. Support column; 14. Ridge; 2. Roof body; 21. Roof panel frame; 22. Rotating core assembly groove; 221. First notch; 2211. First rotating shaft; 2212. Sponge; 222. Second notch; 2221. Second rotating shaft; 2222. Cleaning brush; 2223. Second pulley; 223. Third notch; 2231. High-pressure nozzle; 23. Rotating core; 231. Rotating shaft; 232. Curved photovoltaic panel; 233. Heating plate; 234. Connecting shaft; 235. Driven bevel gear; 236. First pulley; 24. Water guide groove; 25. Scraping edge; 3. Driving assembly; 31. Driving shaft; 32. Driving motor; 33. Active bevel gear; 4. Water storage tank; 41. Water collection hole; 5. Control box. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following is a summary of the present invention.

[0031] The present invention is further described with reference to specific implementation modes.

[0032] like Figures 1 to 10As shown, a preferred embodiment of the present invention proposes a light steel structure surface treatment device, including a steel structure support 1 and a roof body 2, the steel structure support 1 includes a pair of steel structure beams 11, a plurality of sub-beams 12 are connected between the pair of steel structure beams 11, a support column 13 is connected to the middle of each sub-beam 12, and a plurality of support columns 13 are connected to the top of a ridgepole 14, a driving assembly 3 is provided in the inner cavity of the ridgepole 14, and the roof body 2 is connected to both sides of the ridgepole 14, the roof body 2 includes an inclined roof panel frame 21, the roof panel frame 21 is fixed to the side of the ridgepole 14, the bottom wall of the roof panel frame 21 is connected to the steel structure beam 11 on the same side, a plurality of rotating core assembly grooves 22 are stamped and formed on the roof panel frame 21, and the rotating core assembly grooves 22 are arranged at equal intervals The axial direction of the core assembly groove 22 is consistent with the inclination direction of the roof panel frame 21. The core assembly groove 22 is a semi-cylindrical groove, and a core 23 with a matching diameter is provided in the core assembly groove 22. The core 23 is rotatably connected to the core assembly groove 22. A first notch 221, a second notch 222 and a plurality of third notches 223 are respectively provided on the inner side of the core assembly groove 22, and a first rotating shaft 2211 is rotatably connected between the two sides of the first notch 221. A sponge 2212 consistent with its length direction is fixed on the outer wall of the circumference of the first rotating shaft 2211. A second rotating shaft 2221 is rotatably connected between the two sides of the second notch 222. A cleaning brush 2222 consistent with its length direction is fixed on the outer wall of the circumference of the second rotating shaft 2221. The inner side of the third notch 223 A high-pressure nozzle 2231 is fixedly installed, and multiple high-pressure nozzles 2231 are connected through a water pipe fixedly installed at the bottom of the roof panel frame 21. The rotating core 23 can rotate in the rotating core assembly groove 22, so as to switch the curved photovoltaic panel 232 or the heating plate 233 to rotate to the external environment. The rotating core 23 includes a rotating shaft 231, and a semi-circular curved photovoltaic panel 232 is fixed to the outer wall of one side of the rotating shaft 231, and a semi-circular heating plate 233 is fixed to the outer wall of the other side of the rotating shaft 231. A connecting shaft 234 is fixed to the side of the rotating shaft 231 facing the backbone 14, and the connecting shaft 234 penetrates the backbone 14 and extends to its inner cavity. A driven bevel gear 235 is fixed to the end of the connecting shaft 234 located at the inner cavity of the backbone 14, and the outer wall of the middle circumference of the connecting shaft 234 is fixed. A first pulley 236 is fixed, and the driving assembly 3 includes a driving shaft 31 rotatably connected to the inner cavity of the spine 14 and a driving motor 32 fixedly connected to the side wall of the spine 14. The output end of the driving motor 32 passes through the spine 14 and is fixedly connected to the driving shaft 31. The outer wall of the driving shaft 31 is fixed with a driving bevel gear 33 corresponding to the driven bevel gears 235 on both sides, and the driving bevel gear 33 is meshed with the driven bevel gear 235. When the photovoltaic panel 232 needs to be cleaned, the driving motor 32 is started, and the output end of the driving motor 32 drives the driving shaft 31 to rotate, the driving shaft 31 drives the driving bevel gear 33 to rotate, the driving main gear 33 drives the driven bevel gear 235 meshed with it to rotate, and the driven bevel gear 235 drives the connecting shaft 234 to rotate.The connecting shaft 234 drives the rotating shaft 231 to rotate, and the rotating shaft 21 drives the curved photovoltaic panel 232 and the heating plate 233 to rotate. When the curved photovoltaic panel 232 rotates to the position of the high-pressure nozzle 2231, the high-pressure nozzle 2231 washes the dust attached to its outer surface. Then, when the curved photovoltaic panel 232 rotates to the position of the cleaning brush 2222, the cleaning brush 2222 scrubs the stubborn stains on its outer surface. Finally, when the curved photovoltaic panel 232 rotates to the position of the sponge 2212, the sponge 2212 wipes the water stains remaining on its surface. Through the settings of the high-pressure nozzle 2231, the cleaning brush 2222 and the sponge 2212, the curved photovoltaic panel 232 can be automatically cleaned to prevent dust from blocking the curved photovoltaic panel 232, thereby improving the power generation efficiency.

[0033] The second rotating shaft 2221 passes through the roof panel frame 21 and the ridgepole 14 and extends to the inner cavity of the ridgepole 14. The second rotating shaft 2221 is located at the inner cavity end of the ridgepole 14 and is fixed with a second pulley 2223. The second pulley 2223 and the first pulley 236 are driven by a belt. When the connecting shaft 234 rotates, the first pulley 236 is driven to rotate. The first pulley 236 drives the second pulley 2223 to rotate through the belt transmission. The second pulley 2223 drives the second rotating shaft 2221 to rotate. The second rotating shaft 2221 drives the cleaning brush 2222 to rotate. As the cleaning brush 2222 rotates, the efficiency of brushing the outer surface of the curved photovoltaic panel 232 is improved.

[0034] A water tank 4 is fixed on the upper surface of the ridgepole 14, a water pump is arranged in the inner cavity of the water tank 4, a water pipe passes through the roof panel frame 21 and the ridgepole 14 and extends to the inner cavity of the water tank 4, the water pump is connected with the water pipe, and a plurality of evenly distributed water collection holes 41 are opened on the upper surface of the water tank 4, the water collection holes 41 can collect rainwater in rainy weather, thereby effectively improving the utilization of water resources.

[0035] A water guide groove 24 is provided between every two adjacent rotating core assembly grooves 22 on the roof panel frame 21, and scraping edges 25 are provided on the edges of the grooves on both sides of the rotating core assembly grooves 22. When the curved photovoltaic panel 232 rotates, the scraping edges 25 can scrape off larger impurities and dust on its surface, and the scraped impurities are discharged through the water guide groove 24.

[0036] A control box 5 is fixedly installed on the lower surface of the backbone 14. A battery, an electric control module and a wireless transceiver module are arranged inside the control box 5. The battery and the electric control module are electrically connected to the curved photovoltaic panel 232, the heating plate 233, the water pump and the drive motor 32 respectively. The battery is used to store the electric energy generated by the curved photovoltaic panel 232. The electric control module is used to control the start and stop of electrical components such as the curved photovoltaic panel 232, the heating plate 233, the drive motor 32 and the water pump. The wireless transceiver module remotely receives wireless commands sent from the ground to realize remote control of the start and stop of each electrical component.

[0037] Working principle: In fine weather, the drive motor 32 is remotely controlled to work, the output end of the drive motor 32 drives the drive shaft 31 to rotate, the drive shaft 31 drives the active bevel gear 33 to rotate, the active bevel gear 33 drives the driven bevel gear 235 meshing therewith to rotate, the driven bevel gear 235 drives the connecting shaft 234 to rotate, the connecting shaft 234 drives the rotating shaft 231 to rotate, the rotating shaft 21 drives the curved photovoltaic panel 232 to switch to the external environment above, so that light energy can be collected and converted into electrical energy, and stored in the battery in the control box 5 for subsequent use;

[0038] When the curved photovoltaic panel 232 needs to be cleaned after being used for a period of time, the drive motor 32 is driven by remote control to work, the output end of the drive motor 32 drives the drive shaft 31 to rotate, the drive shaft 31 drives the active bevel gear 33 to rotate, the active bevel gear 33 drives the driven bevel gear 235 meshing therewith to rotate, the driven bevel gear 235 drives the connecting shaft 234 to rotate, the connecting shaft 234 drives the rotating shaft 231 to rotate, the rotating shaft 21 drives the curved photovoltaic panel 232 and the heating plate 233 to rotate, when the curved photovoltaic panel 232 rotates to the position of the high-pressure nozzle 2231, When the curved photovoltaic panel 232 rotates to the position of the cleaning brush 2222, the cleaning brush 2222 scrubs the stubborn stains on its outer surface. Finally, when the curved photovoltaic panel 232 rotates to the position of the sponge 2212, the sponge 2212 wipes the water stains remaining on its surface. Through the settings of the high-pressure nozzle 2231, the cleaning brush 2222 and the sponge 2212, the curved photovoltaic panel 232 can be automatically cleaned to avoid dust blocking the curved photovoltaic panel 232, thereby improving the power generation efficiency.

[0039] In rainy and snowy weather, the drive motor 32 is remotely controlled to work, the output end of the drive motor 32 drives the drive shaft 31 to rotate, the drive shaft 31 drives the active bevel gear 33 to rotate, the active bevel gear 33 drives the driven bevel gear 235 meshing therewith to rotate, the driven bevel gear 235 drives the connecting shaft 234 to rotate, the connecting shaft 234 drives the rotating shaft 231 to rotate, the rotating shaft 21 drives the heating plate 233 to switch to the external environment above, and the curved photovoltaic panel 232 switches to the inner side of the rotating core assembly groove 22 to protect the curved photovoltaic panel 232, the heating plate 233 heats to melt the accumulated snow, and the normal use and life of the solar panel are guaranteed.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A light steel structure surface treatment device, characterized in that: The invention comprises a steel structure support (1) and a roof body (2), wherein the steel structure support (1) comprises a pair of steel structure beams (11), a plurality of auxiliary beams (12) are connected between the pair of steel structure beams (11), a support column (13) is connected to the middle of each auxiliary beam (12), and a ridgepole (14) is connected to the top of the plurality of support columns (13), a drive assembly (3) is arranged in the inner cavity of the ridgepole (14), and the roof body (2) is connected to both sides of the ridgepole (14), and the roof body (2) The invention comprises an inclined roof panel frame (21), the roof panel frame (21) is fixed to the side of the ridgepole (14), the bottom wall of the roof panel frame (21) is connected to the steel structure beam body (11) on the same side, a plurality of rotating core assembly grooves (22) are stamped and formed on the roof panel frame (21), the rotating core assembly grooves (22) are arranged at equal intervals, the axial direction of the rotating core assembly grooves (22) is consistent with the inclined direction of the roof panel frame (21), the rotating core assembly grooves (22) are semi-cylindrical grooves, and the rotating core assembly grooves (22) are provided with The rotating core (23) has a matching size and diameter, the rotating core (23) is rotatably connected to the rotating core assembly groove (22), the inner side of the rotating core assembly groove (22) is respectively provided with a first notch (221), a second notch (222) and a plurality of third notches (223), and a first rotating shaft (2211) is rotatably connected between the two sides of the first notch (221), a sponge (2212) in the same length direction as the first rotating shaft (2211) is fixed to the outer wall of the circumference, and the two sides of the second notch (222) are connected to the first rotating shaft (2211). A second rotating shaft (2221) is rotatably connected thereto; a cleaning brush (2222) is fixed to the circumferential outer wall of the second rotating shaft (2221) in the same length direction thereof; a high-pressure nozzle (2231) is fixedly installed inside the third notch (223); a plurality of high-pressure nozzles (2231) are connected via a water pipe fixedly installed at the bottom of the roof panel frame (21); the rotating core (23) comprises a rotating shaft (231); a semicircular curved photovoltaic panel (232) is fixed to the outer wall of one side of the rotating shaft (231).

2. A light steel structure surface treatment device according to claim 1, characterized in that: A semi-circular heating plate (233) is fixed to the outer wall of the other side of the rotating shaft (231); a connecting shaft (234) is fixed to the side of the rotating shaft (231) facing the spine (14); the connecting shaft (234) penetrates the spine (14) and extends to the inner cavity thereof; a driven bevel gear (235) is fixed to the end of the connecting shaft (234) located in the inner cavity of the spine (14); and a first pulley (236) is fixed to the outer wall of the middle circumference of the connecting shaft (234).

3. A light steel structure surface treatment device according to claim 2, characterized in that: The driving assembly (3) comprises a driving shaft (31) rotatably connected to the inner cavity of the spine (14) and a driving motor (32) fixedly connected to the side wall of the spine (14); the output end of the driving motor (32) passes through the spine (14) and is fixedly connected to the driving shaft (31); a driving bevel gear (33) corresponding to the driven bevel gears (235) on both sides is fixed to the outer wall of the driving shaft (31), and the driving bevel gear (33) is meshed with the driven bevel gear (235).

4. A light steel structure surface treatment device according to claim 3, characterized in that: The second rotating shaft (2221) passes through the roof panel frame (21) and the ridgepole (14) and extends to the inner cavity of the ridgepole (14), and a second pulley (2223) is fixed to the end of the second rotating shaft (2221) located in the inner cavity of the ridgepole (14), and the second pulley (2223) and the first pulley (236) are driven by a belt.

5. The surface treatment device for a light steel structure according to claim 3 is characterized in that: A water tank (4) is fixed on the upper surface of the ridge beam (14), a water pump is arranged in the inner cavity of the water tank (4), a water pipe passes through the roof panel frame (21) and the ridge beam (14) and extends to the inner cavity of the water tank (4), the water pump is connected to the water pipe, and a plurality of evenly distributed water collection holes (41) are opened on the upper surface of the water tank (4).

6. A light steel structure surface treatment device according to claim 4, characterized in that: A water guide groove (24) is provided between each two adjacent rotating core assembly grooves (22) on the roof panel frame (21), and scraping edges (25) are provided on the edges of the grooves on both sides of the rotating core assembly grooves (22).

7. The surface treatment device for a light steel structure according to claim 5, characterized in that: A control box (5) is fixedly mounted on the lower surface of the backbone (14); a storage battery, an electric control module and a wireless transceiver module are arranged inside the control box (5); the storage battery and the electric control module are electrically connected to the curved photovoltaic panel (232), the heating plate (233), the water pump and the drive motor (32), respectively.

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