An inspection device for a photovoltaic power station

Abstract

The application provides a kind of photovoltaic power station's inspection device, it is related to photovoltaic power station inspection field, including unmanned aerial vehicle, unmanned aerial vehicle top is fixedly installed with pedestal through tripod, the bottom of pedestal is provided with camera, the inner side wall of pedestal is also rotatably connected with side arm, it is also provided with adjusting assembly for adjusting the supporting angle of side arm in the pedestal, further comprising: cleaning assembly.The application can drive the hollow shaft rotation by driving the control arm movement to drive the hollow shaft rotation when the electric push rod is retracted, so that the inner gear ring engages the transmission gear and the driving gear, so as to drive the winding wheel to rotate and pull the traction rope one and the traction rope two, so as to drive the cleaning assembly and the measuring assembly to open, it is convenient to use the cleaning assembly and the measuring assembly on the power cable, the screw rod can also be driven to rotate by servo motor, so that Y type support arm movement controls the rotation of side wall, adjusts the distance between two measuring assemblies and cleaning assembly, suitable for cable line detection of different distance.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power plant inspection, and more specifically, to an inspection device for photovoltaic power plants. Background Technology

[0002] A photovoltaic (PV) power station is a power generation system that utilizes solar energy, employs special materials such as crystalline silicon panels, inverters, and other electronic components, and is connected to the power grid to transmit electricity. Substation inspection is a crucial component of substation operation and management; it is an essential foundation for verifying equipment operating conditions, understanding equipment operating patterns, and ensuring safe operation. Improving the quality of equipment inspections can enhance substation operation and management, ensuring the safe operation of substation equipment. Traditionally, inspections are conducted on foot. Due to the large space of substations, numerous inspection locations, and significant distances between substations, completing a full inspection requires considerable time and manpower.

[0003] For example, Chinese patent application CN113236947A discloses an inspection device for substations. This technical solution designs a lifting mechanism and a climbing mechanism for the inspection trolley, and introduces mechanical grippers to achieve certain emergency response functions. Specifically, the invention adds a multi-segment lifting arm to the top of the vehicle body, mounting a camera on the lifting arm for high-level image capture, thus achieving observation and overhead views. Simultaneously, an independent second track is added to the front side of the vehicle body, supported by a large tripod. The tripod is independently driven by a climbing motor, allowing it to roll up to lower platforms, thereby achieving a certain climbing function. In addition, the present invention is equipped with a mechanical gripper at the end of the robotic arm, which is driven by synchronous gears. It can press or toggle the switch in an emergency, thereby realizing a certain emergency response function. However, in actual use, it was found that although it can achieve the effects of observation and overlooking by lifting the camera, it cannot accurately detect the transmission cable system, and it cannot detect leakage in the transmission cable system in a timely manner. Therefore, we have made improvements and proposed an inspection device for photovoltaic power stations. Summary of the Invention

[0004] The purpose of this invention is to provide an inspection device for photovoltaic power plants. It uses a drone to carry a camera for convenient monitoring and can also be used in conjunction with the power transmission cable system to detect whether the power transmission cable is leaking.

[0005] The application is as follows:

[0006] The drone includes a base fixedly mounted on its top via a tripod. A camera is mounted at one end of the base's bottom. A side arm is rotatably connected to the inner wall of the base. The base also contains an adjustment assembly for adjusting the side arm's support angle. The drone further includes:

[0007] The cleaning assembly includes a base fixedly connected to the side arm at the end away from the base. A top seat is rotatably connected to one side of the base via a torque shaft. Cleaning bristles are connected to the inner sidewalls of the base and the top seat. A traction rope is also provided on the sidewall of the top seat near the torque shaft.

[0008] The measuring assembly includes a measuring base fixedly connected to one end of the side arm away from the base. A measuring top seat is rotatably connected to one side of the measuring base via a torque shaft. Measuring brush assemblies are fixedly connected to the inner walls of both the measuring top seat and the measuring base. When the measuring top seat and the measuring base are closed, the two measuring brush assemblies are connected in series via electrical connectors to form a closed circuit. The inner walls of the measuring base and the measuring top seat are also provided with a magnetic mechanism to promote the centripetal force of the measuring brush assemblies. A second traction rope is also provided on the side wall of the measuring top seat near the torque shaft.

[0009] A control opening and closing component is provided, which is located between the side arm and the base. Both the first traction rope and the second traction rope pass through the side arm and cooperate with the control opening and closing component.

[0010] As a preferred technical solution of this application, the adjustment component includes a servo motor fixedly installed on the inner bottom wall of the base, a lead screw fixedly installed at the output end of the servo motor, a connecting rod threaded on the outer wall of the lead screw, and Y-shaped support arms rotatably connected to both ends of the connecting rod, with one end of the Y-shaped support arm rotatably connected to a side arm.

[0011] As a preferred technical solution of this application, the end of the side arm away from the base is a hollow structure and its outer wall is provided with a through hole. The first traction rope and the second traction rope are inserted into the through hole and are fitted with the through hole with a gap.

[0012] As a preferred technical solution of this application, the control opening and closing component includes a hollow shaft rotatably connected to one end of the side arm. An internal gear ring is fixedly installed on the inner side wall of the hollow shaft. A transmission gear meshes with the inner side wall of the internal gear ring. A drive gear meshes with the outer wall of the transmission gear. A support shaft is fixedly connected to one side of the drive gear. Two winding wheels are fixedly connected to the outer wall of the support shaft. The first traction rope and the second traction rope are respectively wound around the outer wall of the winding wheels.

[0013] The control opening and closing component also includes an electric push rod fixedly installed on the inner side wall of the base. The output end of the electric push rod is rotatably connected to a control arm through a U-shaped shaft seat. One end of the control arm is rotatably connected to a rotating arm, and the rotating arm is fixedly connected to a hollow shaft.

[0014] As a preferred technical solution of the present application, a second support shaft is fixedly installed on one side of the transmission gear, the outer walls of the second support shaft and the first support shaft are respectively rotatably connected with a holder through bearings, and the holder is fixedly installed on the inner wall of the side arm.

[0015] As a preferred technical solution of the present application, an annular slider is arranged on the outer wall of the hollow shaft rod, a sliding groove adapted to the annular slider is formed on the inner wall of the side arm, the hollow shaft rod is rotatably connected in the side arm through the annular slider, and the driving gear is in non-contact fit with the inner gear ring.

[0016] As a preferred technical solution of the present application, the measuring brush assemblies are two groups and are symmetrically arranged on the inner walls of the measuring base and the measuring top base, the two groups of measuring brush assemblies are arranged in a staggered manner, and their cross-sections overlap to cover a circular track.

[0017] As a preferred technical solution of the present application, the measuring brush assembly comprises semi-annular conductors fixedly connected to the inner side walls of the measuring top base and the measuring base, a plurality of elastic conductive reeds are fixedly installed on the side wall of the semi-annular conductors, the plurality of elastic conductive reeds form an annular array with the center of the semi-annular conductor, the cross-section of the elastic conductive reed is V-shaped, and the elastic conductive reed can deform inward when subjected to an external force and has elastic potential energy for resetting outward; the magnetic mechanism comprises a semi-annular magnet and a plurality of magnetic sheets repelling the semi-annular magnet, and the magnetic sheets are connected to one end, away from the semi-annular conductor, of each elastic conductive reed.

[0018] As a preferred technical solution of the present application, the electrical connector comprises a conductive sheet and conductive wings arranged on both sides of the conductive sheet, and the conductive sheet and the conductive wings are overall in a Chinese character "ge" shape.

[0019] As a preferred technical solution of the present application, a power supply, a central processing unit, a GPS positioning module and a current detection sensor are further arranged in the drone, and the central processing unit and the power supply are electrically connected to the GPS positioning module, the current detection sensor, a servo motor and an electric push rod respectively.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] In the solution of the present application:

[0022] 1. By incorporating a drone, camera, cleaning components, measuring components, and control opening and closing parts, the electric push rod can synchronously drive the control arm to rotate during extension and retraction, thereby rotating the hollow shaft. This causes the internal gear ring to mesh with the transmission gear and drive gear, which in turn drives the winding wheel to rotate and pull the first and second traction ropes, thus opening the cleaning and measuring components. This facilitates the installation of the cleaning and measuring components on power transmission cables. The servo motor can also drive the lead screw to rotate, causing the Y-shaped support arm to move and control the side wall to rotate, adjusting the distance between the two measuring and cleaning components. This is suitable for cable inspection with different spacing.

[0023] 2. With the setup of the cleaning and measuring components, the cleaning brush can remove dust from the cable when the drone is in motion, achieving the purpose of cleaning the cable. At the same time, when the measuring top and measuring base are fastened to the cable, the measuring brush component can form a closed circuit through the electrical connector. When the cable leaks current, it can transmit the current to the current detection sensor through the elastic conductive spring, thereby detecting the location of the cable leakage. The elastic conductive spring can adhere to the cable under the drive of the magnetic mechanism, which is suitable for the detection of cables of different diameters. When closed, the electrical connector can ensure the stability of the electrical connection. Attached Figure Description

[0024] Figure 1 A three-dimensional structural schematic diagram of an inspection device for a photovoltaic power station provided in this application;

[0025] Figure 2 A side view of the structure of an inspection device for a photovoltaic power station provided in this application;

[0026] Figure 3 A partial structural schematic diagram of an inspection device for a photovoltaic power station provided in this application;

[0027] Figure 4 A schematic diagram of the structure of the control opening and closing component in an inspection device for a photovoltaic power station provided in this application;

[0028] Figure 5 This application provides an inspection device for a photovoltaic power station. Figure 3 Schematic diagram of a local structure in the middle;

[0029] Figure 6 A schematic diagram of the structure of a measuring component of an inspection device for a photovoltaic power station provided in this application;

[0030] Figure 7 A cross-sectional structural schematic diagram of a measuring component of an inspection device for a photovoltaic power station provided in this application;

[0031] Figure 8A schematic diagram of the unfolded structure of the measuring component and cleaning component of an inspection device for a photovoltaic power station provided in this application;

[0032] Figure 9 This application provides a schematic diagram of the structure of an inspection device system for a photovoltaic power station.

[0033] The image shows:

[0034] 10. Drone; 11. Base; 12. Camera; 13. Side arm; 131. Through hole; 14. Adjustment assembly; 141. Servo motor; 142. Lead screw; 143. Connecting rod; 144. Y-shaped support arm; 15. Power supply; 16. Central processing unit; 17. GPS positioning module; 18. Current detection sensor;

[0035] 20. Cleaning components; 21. Base sleeve; 22. Top sleeve; 23. Cleaning brush bristles; 24. Traction rope (one);

[0036] 30. Measuring assembly; 31. Measuring base; 32. Measuring top; 33. Measuring brush assembly; 331. Semi-ring conductor; 332. Elastic conductive spring; 34. Electrical connector; 341. Conductive sheet; 342. Conductive wing; 35. Magnetic mechanism; 351. Semi-ring magnet; 352. Magnetic sheet; 36. Traction rope II;

[0037] 40. Control opening and closing components; 41. Hollow shaft; 42. Internal gear ring; 43. Transmission gear; 44. Drive gear; 45. Support shaft one; 46. Rewinding wheel; 47. Electric push rod; 48. Control arm; 49. Rotating arm; 410. Support shaft two; 411. Cage. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] Therefore, the following detailed description of embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely illustrates some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] Please see Figures 1 to 9This invention provides a technical solution: an inspection device for a photovoltaic power station, including a drone 10. A base 11 is fixedly mounted on the top of the drone 10 via a tripod. A camera 12 is installed at one end of the bottom of the base 11. Specifically, the camera 12 can record video. A side arm 13 is rotatably connected to the inner wall of the base 11. An adjustment component 14 for adjusting the support angle of the side arm 13 is also provided inside the base 11. The adjustment component 14 can adjust the support angle of the side arm 13, thus making it suitable for different cable inspections. The device also includes:

[0041] The cleaning component 20 includes a base 21 fixedly connected to the end of the side arm 13 away from the base 11. A top seat 22 is rotatably connected to one side of the base 21 via a torque shaft. Cleaning bristles 23 are connected to the inner sidewalls of the base 21 and the top seat 22. A traction rope 24 is also provided on the sidewall of the top seat 22 near the torque shaft. The cleaning component 20 can clean the cable in advance before inspection. Specifically, there are several cleaning bristles 23, which are irregularly arranged in the top seat 22 and the base 21 to form a full coverage of the cable, thereby improving the cleaning effect.

[0042] The measuring component 30 includes a measuring base 31 fixedly connected to the end of the side arm 13 away from the base 11. A measuring top seat 32 is rotatably connected to one side of the measuring base 31 via a torque shaft. Measuring brush assemblies 33 are fixedly connected to the inner walls of both the measuring top seat 32 and the measuring base 31. When the measuring top seat 32 and the measuring base 31 are closed, the two measuring brush assemblies 33 are connected in series via an electrical connector 34 to form a closed circuit. The inner walls of the measuring base 31 and the measuring top seat 32 are also provided with a magnetic mechanism 35 to promote the centripetal force of the measuring brush assemblies 33. A second traction rope 36 is also provided on the side wall of the measuring top seat 32 near the torque shaft. The measuring component 30 can be used to detect cables and effectively detect cable leakage areas.

[0043] The control opening and closing component 40 is located between the side arm 13 and the base 11. The first traction rope 24 and the second traction rope 36 both pass through the side arm 13 and cooperate with the control opening and closing component 40. The control opening and closing component 40 can control the opening of the cleaning component 20 and the measuring component 30, which facilitates the connection of the cable.

[0044] In a preferred embodiment, based on the above method, the adjustment component 14 further includes a servo motor 141 fixedly installed on the inner bottom wall of the base 11. A lead screw 142 is fixedly installed at the output end of the servo motor 141. A connecting rod 143 is threaded onto the outer wall of the lead screw 142. Both ends of the connecting rod 143 are rotatably connected to Y-shaped support arms 144. One end of the Y-shaped support arm 144 is rotatably connected to the side arm 13. In specific use, the lead screw 142 can be driven to work by the servo motor 141. Since both ends of the connecting rod 143 are connected to the Y-shaped support arm 144, the rotation of the lead screw 142 can engage the connecting rod 143 to slide on the surface of the lead screw 142. When the Y-shaped support arm 144 is raised or lowered, it can synchronously push the side arm 13 to move. The position of the measuring component 30 and the cleaning component 20 can be adjusted by the side arm 13, so that the spacing of the cables can be adjusted, thus realizing the detection of different cables.

[0045] The end of the side arm 13 away from the base 11 is a hollow structure and its outer wall has a through hole 131. The first traction rope 24 and the second traction rope 36 are inserted into the through hole 131 and are in clearance fit with the through hole 131. The first traction rope 24 and the second traction rope 36 can slide in the through hole 131, so as to cooperate with the control opening and closing component 40.

[0046] In a preferred embodiment, based on the above method, the control opening and closing component 40 further includes a hollow shaft 41 rotatably connected to one end of the side arm 13. An internal gear ring 42 is fixedly installed on the inner side wall of the hollow shaft 41. A transmission gear 43 meshes with the inner side wall of the internal gear ring 42. A drive gear 44 meshes with the outer side wall of the transmission gear 43. A support shaft 45 is fixedly connected to one side of the drive gear 44. Two winding wheels 46 are fixedly connected to the outer wall of the support shaft 45. A traction rope 24 and a traction rope 36 are respectively wound around the outer wall of the winding wheel 46. Specifically, the hollow shaft 41 facilitates the installation of the internal gear ring 42 and makes the drive gear 44 and the transmission gear mesh. Wheel 43 moves within hollow shaft 41. When hollow shaft 41 rotates, it synchronously drives internal gear ring 42 to move, simultaneously meshing transmission gear 43 and drive gear 44. The rotation of drive gear 44 drives take-up wheel 46 to rotate. The rotation of take-up wheel 46 can wind up traction rope one 24 and traction rope two 36, thereby pulling the measuring top seat 32 and sleeve top seat 22 to rotate relative to measuring base 31 and sleeve base 21 respectively, thus opening the measuring component 30 and cleaning component 20 to connect with the cable. The measuring base 31 and measuring top seat 32, as well as the sleeve base 21 and sleeve top seat 22 are all connected by torque shafts, which facilitates automatic closure when external force is lost, making it convenient to use.

[0047] The control opening and closing component 40 also includes an electric push rod 47 fixedly installed on the inner side wall of the base 11. The output end of the electric push rod 47 is rotatably connected to a control arm 48 through a U-shaped bearing. One end of the control arm 48 is rotatably connected to a rotating arm 49. The rotating arm 49 is fixedly connected to the hollow shaft 41. In specific use, the control arm 48 can be pushed to move by extending the electric push rod 47, thereby pushing the rotating arm 49. When the rotating arm 49 moves, it can drive the hollow shaft 41 to rotate relative to the side arm 13.

[0048] A second support shaft 410 is fixedly installed on one side of the transmission gear 43. The outer walls of the second support shaft 410 and the first support shaft 45 are respectively rotatably connected to a retainer 411 through a bearing. The retainer 411 is fixedly installed on the inner wall of the side arm 13. The retainer 411 fixes the first support shaft 45 and the second support shaft 410, ensuring the stability of the rotation of the first support shaft 45 and the second support shaft 410.

[0049] The hollow shaft 41 has an annular slider on its outer wall, and the inner wall of the side arm 13 has a groove that matches the annular slider. The hollow shaft 41 is rotatably connected to the side arm 13 through the annular slider. The drive gear 44 does not contact the inner gear ring 42. Specifically, the annular slider ensures that the hollow shaft 41 is stably installed in the side arm 13 and can rotate around the center of the hollow shaft 41 when rotating. This ensures that the hollow shaft 41 can effectively mesh with the transmission gear 43 and the drive gear 44 when rotating.

[0050] As a preferred embodiment, based on the above method, the measuring brush assembly 33 is further provided in two sets and symmetrically arranged on the inner walls of the measuring base 31 and the measuring top seat 32. The two sets of measuring brush assemblies 33 are arranged in an alternating manner, and their cross-sections overlap to cover a circular trajectory. By arranging the two sets of measuring brush assemblies 33 in an alternating manner, each set of measuring brush assemblies 33 has corresponding space for movement. With the cooperation of the two sets of measuring brush assemblies 33, a coverage can be formed, enabling the measuring brush assembly 33 to perform comprehensive testing on the cable.

[0051] The measuring brush assembly 33 includes a semi-ring conductor 331 fixedly connected to the inner wall of the measuring top seat 32 and the measuring base 31. Multiple elastic conductive springs 332 are fixedly mounted on the side wall of the semi-ring conductor 331. These springs are arranged in a ring array around the center of the semi-ring conductor 331. The cross-section of each elastic conductive spring 332 is "V" shaped. When subjected to external force, the elastic conductive springs 332 can deform inwards and possess elastic potential energy to return to their original position outwards. The magnetic mechanism 35 includes a semi-ring magnet 351 and multiple magnets that repel the semi-ring magnet 351. The sheet 352 and the magnetic sheet 352 are connected to the end of each elastic conductive spring 332 away from the semi-ring conductor 331. The semi-ring conductor 331 is made of conductive material. When the upper and lower semi-ring conductors 331 are closed, they can form a series connection. The advantage of the V-shaped setting of the elastic conductive spring 332 is that it can fold when subjected to external force and unfold under the repulsive force of the magnetic sheet 352 and the semi-ring magnet 351 when the external force is removed. In this way, the elastic conductive spring 332 can further fit the cable, thereby effectively contacting the cable and ensuring effective detection.

[0052] The electrical connector 34 includes a conductive sheet 341 and conductive wings 342 disposed on both sides of the conductive sheet 341. The conductive sheet 341 and the conductive wings 342 are in the shape of a "U". Specifically, the electrical connector 34 is disposed on the upper half-ring conductor 331, and a slot adapted to the electrical connector 34 is opened on the lower half-ring conductor 331. When the conductive sheet 341 is inserted into the slot, the conductive wings 342 will deform inward and effectively fit against the side wall of the slot, thereby ensuring the effective series connection of the upper half-ring conductor 331 and the lower half-ring conductor 331, thus forming the detection of the entire cable.

[0053] As a preferred embodiment, based on the above method, the UAV 10 further includes a power supply 15, a central processing unit 16, a GPS positioning module 17, and a current detection sensor 18. The central processing unit 16 and the power supply 15 are electrically connected to the GPS positioning module 17, the current detection sensor 18, the servo motor 141, and the electric push rod 47, respectively. Specifically, the UAV 10 can be remotely controlled through a terminal device, and the GPS positioning module 17 can perform positioning, thereby facilitating the identification of leakage areas during detection. Specifically, after receiving a signal, the central processing unit 16 can control the servo motor 141 and the electric push rod 47, and can also detect whether there is a leakage phenomenon through the current detection sensor 18. Furthermore, the power supply 15 can also supply power to the camera 12, and the camera 12 is electrically connected to the central processing unit 16.

[0054] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described herein. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present invention, as well as all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present invention.

Claims

1. An inspection device for a photovoltaic power station, comprising a drone (10), characterized in that, The top of the drone (10) is fixedly mounted with a base (11) via a tripod. A camera (12) is installed at one end of the bottom of the base (11). A side arm (13) is rotatably connected to the inner side wall of the base (11). An adjustment component (14) for adjusting the support angle of the side arm (13) is also provided inside the base (11). The drone also includes: The cleaning assembly (20) includes a base (21) fixedly connected to the side arm (13) away from the base (11). A top seat (22) is rotatably connected to one side of the base (21) via a torque shaft. Cleaning bristles (23) are connected to the inner sidewalls of the base (21) and the top seat (22). A traction rope (24) is also provided on the sidewall of the top seat (22) near the torque shaft. The measuring component (30) includes a measuring base (31) fixedly connected to the end of the side arm (13) away from the base (11). A measuring top seat (32) is rotatably connected to one side of the measuring base (31) via a torque shaft. A measuring brush assembly (33) is fixedly connected to the inner sidewall of both the measuring top seat (32) and the measuring base (31). When the measuring top seat (32) and the measuring base (31) are closed, the two measuring brush assemblies (33) are connected in series via an electrical connector (34) to form a closed circuit. The inner sidewall of the measuring base (31) and the measuring top seat (32) is also provided with a magnetic mechanism (35) for promoting the centripetal force of the measuring brush assembly (33). A second traction rope (36) is also provided on the sidewall of the measuring top seat (32) near the torque shaft. The measuring brush assembly (33) includes a semi-ring conductor (331) fixedly connected to the inner sidewall of the measuring top seat (32) and the measuring base (31). A plurality of elastic conductive springs (332) are fixedly installed on the sidewall of the semi-ring conductor (331). The plurality of elastic conductive springs (332) are arranged in a ring array with the center of the semi-ring conductor (331). The cross-section of the elastic conductive springs (332) is "V" shaped. When the elastic conductive springs (332) are subjected to external force, they can deform inward and have elastic potential energy to reset outward. The magnetic mechanism (35) includes a semi-ring magnet (351) and a plurality of magnetic sheets (352) that repel the semi-ring magnet (351). The magnetic sheets (352) are connected to the end of each elastic conductive spring (332) away from the semi-ring conductor (331). A control opening and closing component (40) is provided between the side arm (13) and the base (11). The first traction rope (24) and the second traction rope (36) both pass through the side arm (13) and cooperate with the control opening and closing component (40). Said opening / closing control component (40) comprises a hollow shaft rod (41) rotatably connected to one end of said side arm (13), an inner gear ring (42) is fixedly mounted on an inner side wall of said hollow shaft rod (41), a transmission gear (43) is meshed with an inner side wall of said inner gear ring (42), a drive gear (44) is meshed with an outer wall of said transmission gear (43), a first support shaft (45) is fixedly connected to one side of said drive gear (44), two winding wheels (46) are respectively fixedly connected to an outer wall of said first support shaft (45), said first traction rope (24) and said second traction rope (36) are respectively wound around outer walls of said winding wheels (46); said opening / closing control component (40) further comprises an electric push rod (47) fixedly mounted on an inner side wall of a base (11), an output end of said electric push rod (47) is rotatably connected with a control arm (48) through a U-shaped shaft seat, one end of said control arm (48) is rotatably connected with a rotating arm (49), and said rotating arm (49) is fixedly connected with said hollow shaft rod (41).

2. The inspection device for a photovoltaic power station according to claim 1, characterized in that, Said adjustment assembly (14) comprises a servo motor (141) fixedly mounted on an inner bottom wall of said base (11), a lead screw (142) is fixedly mounted on an output end of said servo motor (141), a connecting rod (143) is threadedly meshed with an outer wall of said lead screw (142), two ends of said connecting rod (143) are both rotatably connected with Y-shaped support arms (144), and one end of said Y-shaped support arm (144) is rotatably connected with said side arm (13).

3. The inspection device for a photovoltaic power station according to claim 1, characterized in that, An end of said side arm (13) away from said base (11) is of a hollow structure, and an outer wall of said side arm is provided with a through hole (131), said first traction rope (24) and said second traction rope (36) are inserted into said through hole (131) and are in clearance fit with said through hole (131).

4. The inspection device for a photovoltaic power station according to claim 1, characterized in that, A second support shaft (410) is fixedly mounted on one side of said transmission gear (43), outer walls of said second support shaft (410) and said first support shaft (45) are respectively rotatably connected with a holder (411) through bearings, and said holder (411) is fixedly mounted on an inner wall of said side arm (13).

5. The inspection device for a photovoltaic power station according to claim 1, characterized in that, An outer wall of said hollow shaft rod (41) is provided with an annular slider, an inner wall of said side arm (13) is provided with a sliding slot adapted to said annular slider, said hollow shaft rod (41) is rotatably connected in said side arm (13) through said annular slider, and said drive gear (44) is in non-contact fit with said inner gear ring (42).

6. The inspection device for a photovoltaic power station according to claim 1, characterized in that, Said measuring brush assemblies (33) are provided in two groups and are symmetrically arranged on inner walls of said measuring base (31) and said measuring top seat (32), the two groups of said measuring brush assemblies (33) are arranged in a staggered manner, and a cross-section of the two groups overlaps to cover a circular track after being overlapped.

7. The inspection device for a photovoltaic power station according to claim 1, characterized in that, Said electrical connector (34) comprises a conductive sheet (341) and conductive wings (342) arranged on two sides of said conductive sheet (341), and said conductive sheet (341) and said conductive wings (342) are generally in a shape of Chinese character "ge".

8. The inspection device for a photovoltaic power station according to claim 1, characterized in that, The UAV (10) is also equipped with a power supply (15), a central processing unit (16), a GPS positioning module (17), and a current detection sensor (18). The central processing unit (16) and the power supply (15) are electrically connected to the GPS positioning module (17), the current detection sensor (18), the servo motor (141), and the electric push rod (47), respectively.

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