Photovoltaic inspection unmanned aerial vehicle

Abstract

The utility model discloses a photovoltaic inspection unmanned aerial vehicle, which belongs to the technical field of unmanned aerial vehicles, comprises an unmanned aerial vehicle body and a water tank arranged at the bottom of the unmanned aerial vehicle body, and is characterized in that a protection device is arranged at the top of the unmanned aerial vehicle body and comprises a double-shaft self-locking motor arranged in the center of the top of the unmanned aerial vehicle body; two output shafts of the self-locking motor are fixedly connected with screw rods respectively, and charging barrels filled with sodium azide are fixedly arranged at the positions, corresponding to the two screw rods, of the top of the machine body respectively; wherein each screw rod is connected with a push rod through a Z-shaped connecting rod, a pressing plate capable of sliding back and forth in the corresponding charging barrel is fixedly arranged at the end, away from the corresponding connecting rod, of each push rod, and the side, away from the pressing plate, of each charging barrel is communicated with an air bag arranged at the bottom of the water tank through an air conveying pipe. Through the air bag, the unmanned aerial vehicle can be protected when the unmanned aerial vehicle falls, and the unmanned aerial vehicle is prevented from being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a photovoltaic inspection unmanned aerial vehicle. Background Art

[0002] A photovoltaic inspection unmanned aerial vehicle is an unmanned aerial vehicle system specially designed for inspecting solar photovoltaic panels. By carrying a high-definition camera, an infrared thermal imager and other sensors, it can automatically inspect the photovoltaic panels of a photovoltaic power station. Some unmanned aerial vehicles are also equipped with a cleaning device, which can wash the obvious dirt on the photovoltaic surface. The photovoltaic unmanned aerial vehicle can significantly improve the operation and maintenance efficiency of the photovoltaic power station, reduce the cost and risk of manual inspection, and at the same time improve the accuracy of fault detection.

[0003] When the unmanned aerial vehicle flies to a high altitude for inspection work and cleans the photovoltaic surface, if the operator's improper operation causes the unmanned aerial vehicle to accidentally hit the photovoltaic panel or other objects and the propeller blades of the unmanned aerial vehicle are damaged and it cannot fly normally, the unmanned aerial vehicle will quickly fall from a high altitude, resulting in the problem that the unmanned aerial vehicle is damaged and cannot be used normally. Summary of the Utility Model

[0004] In order to solve the problem that the existing unmanned aerial vehicle is easily damaged when it falls from the air after the propeller blades are damaged, the utility model provides a photovoltaic inspection unmanned aerial vehicle, which can inflate the airbag when the unmanned aerial vehicle falls, so as to buffer the unmanned aerial vehicle when it contacts the ground and prevent the unmanned aerial vehicle from being damaged.

[0005] The technical solution adopted by the photovoltaic inspection unmanned aerial vehicle of the utility model is as follows:

[0006] A photovoltaic inspection unmanned aerial vehicle includes a fuselage. A water tank is arranged at the bottom of the fuselage, and a protection device is arranged at the top of the fuselage. The protection device includes a double-shaft self-locking motor arranged at the central position at the top of the fuselage, and two output shafts of the self-locking motor are respectively fixedly connected with screw rods. Charging cylinders containing sodium azide are respectively and fixedly arranged at the positions corresponding to the two screw rods at the top of the fuselage; wherein, each screw rod is connected with a push rod through a "Z"-shaped connecting rod, and a pressing plate that can slide back and forth in the corresponding charging cylinder is fixedly arranged at the end of the push rod far away from the corresponding connecting rod. An airbag arranged at the bottom of the water tank is communicated with each charging cylinder through an air pipe at the side far away from the pressing plate;

[0007] At the same time, a prompting device is arranged at the top of the fuselage above the protection device.

[0008] The further improvement of the technical solution of the utility model lies in that: the connecting rod includes a sliding rod threadedly connected with the screw rod. The end of the sliding rod far away from the screw rod is fixedly connected with an L-shaped connecting rod perpendicular to the sliding rod, and the push rod is fixedly connected with the end of the connecting rod far away from the sliding rod perpendicular to it.

[0009] A further improvement of the above technical solution of the utility model lies in that: two slots are provided at the corner of the connecting rod, and a U-shaped block inserted into the two slots is arranged above the connecting rod.

[0010] A further improvement of the above technical solution of the utility model lies in that: positioning grooves parallel to the loading cylinders are provided on one side of the top of the machine body corresponding to each loading cylinder. A vertical rectangular rod is fixedly connected to the bottom of each connecting rod, and the bottom end of the rectangular rod extends downward into the corresponding positioning groove and can slide along the positioning groove.

[0011] A further improvement of the technical solution of the utility model lies in that: vertical groove rods are provided on the side wall of the machine body corresponding to each air duct, and the air duct passes through the corresponding groove rod and is communicated with the airbag.

[0012] A further improvement of the technical solution of the utility model lies in that: a reinforcing strip made of nylon material is fixedly connected to the bottom edge of the airbag.

[0013] A further improvement of the technical solution of the utility model lies in that: the prompting device includes round rods vertically and fixedly arranged at the four corners of the top of the machine body. Each round rod is sleeved with a ring that slides up and down along itself. A light-emitting strip is arranged between adjacent two rings, and an energizing mechanism for controlling the light-emitting strip is arranged on the light-emitting strip.

[0014] A further improvement of the above technical solution of the utility model lies in that: the energizing mechanism includes a contact rod vertically arranged at the top of one of the round rods, and a contact point matching the contact rod is arranged on the light-emitting strip corresponding to the contact rod.

[0015] A further improvement of the above technical solution of the utility model lies in that: a spring is sleeved between each round rod between the corresponding ring and the machine body, and the top end of the spring is fixedly connected to the corresponding ring, and the bottom end of the spring is fixedly connected to the top of the machine body.

[0016] A further improvement of the above technical solution of the utility model lies in that: each ring is fixedly connected with a pull rope, and the end of the pull rope away from the corresponding ring is fixedly wound on the screw rod.

[0017] Due to the adoption of the above technical solution, the technical progress obtained by the utility model includes:

[0018] The utility model provides an airbag, so if the drone falls unexpectedly during use, the double-axis self-locking motor on the top of the body can be operated to drive the two screws to rotate, so that the two sliding rods move in opposite directions on the outer surfaces of the screws, and the push rod is driven by the connecting rod to make the pressing plate slide on the inner wall of the charging barrel and compress and hit the sodium azide inside the charging barrel. Due to the characteristics of the sodium azide itself, it can be decomposed under the action of a very small force to generate a large amount of nitrogen, which is squeezed by the pressing plate and enters the interior of the airbag through the air pipe to fill the airbag. When the drone falls, the weight of the water tank will cause the water tank of the drone to fall downward, so that the airbag filled with nitrogen at the bottom will contact the ground, so as to provide buffering protection for the drone and avoid damage to the drone as much as possible to affect normal use.

[0019] At the same time, the groove rods provided in the utility model can limit the position of the air pipe on the outside of the fuselage, thereby avoiding as much as possible the air pipe being accidentally pulled and entangled in the surface of other objects during the flight of the fuselage; the bottom edge of the airbag can be reinforced by providing a nylon reinforcement strip, thereby avoiding as much as possible the damage of the edge when the airbag contacts the ground, resulting in internal gas leakage.

[0020] When the screw rod rotates in the utility model to drive the sliding rod and the connecting rod to move, the bottom end of the rectangular rod will slide on the inner wall of the positioning groove, thereby further limiting the angle between the sliding rod and the connecting rod and the screw rod, and avoiding shaking of the sliding rod and the connecting rod when they move as much as possible.

[0021] In the utility model, the two ends of the U-shaped block are inserted into the slot at the top end of the connecting rod so that the U-shaped block can be fixed to the top end of the connecting rod, thereby reinforcing the connecting rod and preventing the connecting rod from deforming; when the protection device is triggered, the U-shaped block can be pulled out from the inside of the slot, and the bending part of the connecting rod can be pushed to bend outward at a certain angle to remove the pressing plate from the inside of the charging barrel, so as to clean and fill the chemical substances in the charging barrel.

[0022] When the drone falls and the protection device is triggered, the two screws rotate to release the pull rope on the outer surface and extend the spring at the bottom end of the ring upward to restore to its original state, pushing the ring to slide upward on the outer surface of the round rod, so that the contact point on the outer surface of the light strip is connected with the contact rod at the top end of the round rod, so that the light strip is energized and emits light, making it easy for personnel to find the fallen drone for recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a photovoltaic inspection drone of the utility model;

[0024] Figure 2 This is a schematic structural diagram of a photovoltaic inspection drone of the utility model from another angle;

[0025] Figure 3 This is a photovoltaic inspection drone of the utility model.Figure 2 Partial enlarged structural schematic diagram at position A;

[0026] Figure 4 It is a structural schematic diagram of the airbag of a photovoltaic inspection drone of the present utility model;

[0027] Figure 5 It is a structural schematic diagram of the sliding rod of a photovoltaic inspection drone of the present utility model;

[0028] Figure 6 It is a structural schematic diagram of the U-shaped block of a photovoltaic inspection drone of the present utility model.

[0029] In the attached drawings: 1. Airframe;

[0030] 2. Protection device; 21. Biaxial self-locking motor; 22. Screw rod; 23. Sliding rod; 24. Connecting rod; 25. Push rod; 26. Pressure plate; 27. Loading cylinder; 28. Air delivery pipe; 29. Airbag; 210. Grooved rod; 211. Reinforcing strip; 212. Positioning groove; 213. Rectangular rod; 214. Insertion slot; 215. U-shaped block;

[0031] 3. Prompt device; 31. Round rod; 32. Ring; 33. Light-emitting strip; 34. Spring; 35. Touch rod; 36. Contact point; 37. Pulling rope; 38. Convex strip;

[0032] 4. Water tank; 5. Nozzle; 6. Camera. Specific implementation manner

[0033] To make the purpose, technical solution and advantages of the present utility model clearer and more obvious, the present utility model will be further described in detail below in combination with specific implementation manners and with reference to the attached drawings. In the following description, the description of well-known structures and technologies is omitted to avoid unnecessarily confusing the concept of the present utility model.

[0034] First, refer to Figure 1 and Figure 2 , according to Figure 1 and Figure 2 it can be known that the present utility model includes an airframe 1, a water tank 4 is fixedly connected to the bottom of the airframe 1, a water pump communicating with the water tank 4 is arranged inside the airframe 1, a water injection port and a nozzle 5 are arranged at one end of the water tank 4, the output end of the water pump is connected to one end of the nozzle 5, a plurality of arms are fixedly connected to the outer surface of the airframe 1, propellers are rotatably connected to the tops of the arms, a camera 6 is arranged on one side of the airframe 1, and a protection device 2 is arranged on the top of the airframe 1. The protection device 2 includes two loading cylinders 27 horizontally fixed on the top of the airframe 1. Each loading cylinder 27 is provided with a cavity inside, and openings communicating with its own cavity are arranged at the ends of the two loading cylinders 27 close to each other. At the same time, each loading cylinder 27 is filled with sodium azide; refer to Figure 2 andFigure 3 In this utility model, the protection device 2 further includes a horizontal double-axis self-locking motor 21 fixed to the top of the machine body 1. The double-axis self-locking motor 21 is parallel to the two charging cylinders 27, and the two output ends of the double-axis self-locking motor 21 are respectively fixedly connected with screws 22 corresponding to the two charging cylinders 27 one by one. One end of each screw 22 far from the double-axis self-locking motor 21 is rotatably connected to the top of the machine body 1. Specifically, at the position of the top of the machine body 1 corresponding to one end of each screw 22 far from the double-axis self-locking motor 21, a vertical connecting plate is fixedly connected. One end of each screw 22 far from the double-axis self-locking motor 21 is rotatably connected to the corresponding connecting plate. The outer surfaces of the two screws 22 are respectively threadedly connected with horizontal sliding rods 23 perpendicular to the screws 22. One end of the sliding rod 23 far from the corresponding screw 22 is fixedly connected with an L-shaped connecting rod 24. One end of the connecting rod 24 far from the sliding rod 23 is fixedly connected with a push rod 25. One end of the push rod 25 far from the connecting rod 24 is fixedly connected with a pressing plate 26. The pressing plate 26 is located in the cavity of the corresponding charging cylinder 27 and can slide along the inner wall of the charging cylinder 27. The closed end of the charging cylinder 27 is fixedly communicated with an air pipe 28. The bottom of the water tank 4 is fixedly connected with an airbag 29. One end of the air pipe 28 far from the charging cylinder 27 passes through the connecting plate and is fixedly communicated with the airbag 29 through the space between the groove rod 210 and the machine body 1. At the same time, a reinforcing strip 211 is fixedly connected to the bottom edge of the airbag 29. The reinforcing strip 211 is made of nylon material. By setting the nylon material reinforcing strip 211, the bottom edge of the airbag 29 can be reinforced, and it is possible to avoid the internal gas leakage caused by the edge damage when the airbag 29 contacts the ground as much as possible.

[0035] Continue to refer to Figure 2 In order to avoid the air pipe 28 being accidentally pulled and wound around the surface of other objects during the flight of the machine body 1 as much as possible, groove rods 210 are respectively fixedly connected to both sides of the machine body 1. One end of the air pipe 28 far from the charging cylinder 27 passes through the connecting plate and the space between the groove rod 210 and the machine body 1 in sequence and then is connected to the airbag 29. By setting the groove rod 210, the position of the air pipe 28 outside the machine body 1 can be restricted, so as to prevent the air pipe 28 from being accidentally pulled and wound around the surface of other objects during the flight of the machine body 1.

[0036] In order to prevent the sliding rod 23 and the connecting rod 24 from shaking when moving, continue to refer to Figure 3The top of the machine body 1 is located on the inner side of each charging barrel 27 and is provided with a positioning groove 212 parallel to the corresponding charging barrel 27. The bottom of each connecting rod 24 is fixedly connected to the position corresponding to the positioning groove 212 with a vertical rectangular rod 213. The bottom end of the rectangular rod 213 extends downward into the corresponding positioning groove 212 and can slide along the inner wall of the positioning groove 212. In the utility model, when the screw rod 22 rotates to drive the sliding rod 23 and the connecting rod 24 to move, the bottom end of the rectangular rod 213 will slide on the inner wall of the positioning groove 212, further limiting the angle between the sliding rod 23 and the connecting rod 24 and the screw rod 22, thereby avoiding shaking of the sliding rod 23 and the connecting rod 24 as much as possible when they move.

[0037] The connecting rod 24 in the utility model is made of elastic material (such as elastic plastic or rubber). In order to prevent the connecting rod 24 from deforming during the movement and thus being unable to push the push rod 25 and the pressure plate 26, Figure 3 , Figure 5 and Figure 6 It can be seen that two slots 214 are respectively provided on both sides of the top corner of the connecting rod 24, and a U-shaped block 215 is provided on the top of the connecting rod 24. Inserting the two ends of the U-shaped block 215 into the slot 214 at the top of the connecting rod 24 can fix the U-shaped block 215 to the top of the connecting rod 24, thereby reinforcing the connecting rod 24 and preventing the connecting rod 24 from deforming; in the utility model, when the protective device 2 is triggered, the U-shaped block 215 can be pulled out from the inside of the slot 214, pushing the bending part of the connecting rod 24 to bend outward at a certain angle to remove the pressing plate 26 from the inside of the loading barrel 27, thereby facilitating the cleaning and filling of the chemical substances inside the loading barrel 27.

[0038] Continue to refer Figure 1 The top of the body 1 of the utility model is located above the protective device 2 and is provided with a prompt device 3. The prompt device 3 can be referred to in the specific setting. Figure 1 , Figure 2 and Figure 3 ,according to Figure 1 , Figure 2 and Figure 3 It can be seen that the prompt device 3 includes a plurality of round rods 31 vertically fixed on the top of the body 1, the bottom ends of the round rods 31 are fixedly connected to the four corners of the top of the body 1, the outer surface of each round rod 31 is slidably connected with a ring 32, and a light bar 33 is fixedly connected between two adjacent rings 32, and a contact 36 for controlling all light bars 33 is provided on one side of the top of one light bar 33, and a touch rod 35 matching the contact 36 is vertically fixedly connected to one side of the top of a round rod 31; continue to refer to Figure 3, a spring 34 is provided between each ring 32 and the body 1. The upper and lower ends of the spring 34 are fixedly connected to the bottom end of the ring 32 and the top end of the body 1 respectively. When the present utility model is in normal use, the spring 34 is in a compressed state. A pull rope 37 is fixedly connected to the bottom end of the ring 32, and one end of the pull rope 37 away from the ring 32 at the bottom end of each ring 32 is fixedly wound around the outer surface of the corresponding screw rod 22. When the protection device 2 is triggered due to the fall of the present utility model, the two screw rods 22 rotate to release the pull rope 37 on the outer surface and make the spring 34 at the bottom end of the ring 32 bounce upward to restore its original state, pushing the ring 32 to slide upward on the outer surface of the round rod 31, so that the contact point 36 on the outer surface of the light-emitting strip 33 is connected to the contact rod 35 at the top end of the round rod 31, making the light-emitting strip 33 energized and emit light, which is convenient for personnel to find the fallen drone for recovery.

[0039] In the present utility model, the inner diameter of the spring 34 is larger than the diameter of the round rod 31. The spring 34 is located outside the round rod 31. When the spring 34 deforms, it will move outside the round rod 31. The inner shape of the spring 34 can be reinforced through the round rod 31, and as much as possible to avoid the lateral deformation of the spring 34 and make it unable to be used normally. A convex strip 38 is fixedly connected to the outer surface of the ring 32, and one end of the convex strip 38 away from the ring 32 is fixedly connected to one side of the top end of the light-emitting strip 33. By setting the convex strip 38, the connection between the ring 32 and the light-emitting strip 33 can be reinforced, and the connection stability at the connection between the light-emitting strip 33 and the ring 32 can be improved.

[0040] The working principle of the photovoltaic inspection drone of this embodiment is as follows: when using the photovoltaic inspection drone of the utility model for inspection work, the water inlet on one side of the water tank 4 can be opened first, clean water can be added to the inside of the water tank 4, and then the water inlet can be covered. The driving device inside the drone can be controlled by the remote control device to drive the blades at the top of the arm to rotate, so that the drone can fly to a high altitude. The camera 6 at one end of the body 1 can be used to collect information from the photovoltaic area and analyze the data for detection. When there is obvious dirt on the photovoltaic surface, the water pump inside the body 1 can be operated to pump the water inside the water tank 4. The surface of the photovoltaic is cleaned by spraying through the nozzle 5. When an accidental collision occurs during the operation of the UAV, causing the body 1 to fall, the double-axis self-locking motor 21 on the top of the body 1 is controlled by the remote control device to drive the two screws 22 to rotate, so that the two sliding rods 23 move in opposite directions on the outer surface of the screw 22, and the push rod 25 is driven by the connecting rod 24 to make the pressing plate 26 slide on the inner wall of the charging barrel 27 and compress and impact the sodium azide inside the charging barrel 27. The sodium azide is decomposed by the impact, generating a large amount of nitrogen and extruding through the pressing plate 26. The air bag 29 is filled through the air pipe 28. When the drone falls, the water tank 4 will cause the body 1 to fall downward due to the weight of the water tank 4, so that the air bag 29 filled with nitrogen at the bottom will contact the ground, providing buffer protection for the body 1. At the same time, when the screw 22 rotates, the pull rope 37 on the outer surface will be released, and the spring 34 on the outer surface of the round rod 31 will return to its original state and push each ring 32 to slide upward on the outer surface of the round rod 31, so that the light bar 33 follows the ring 32 to rise to the contact point 36 on the outer surface and the contact point at the top of the round rod 31. The rod 35 is turned on, and then the light bar 33 is powered on and illuminated, prompting the personnel the location of the body 1. After picking up the fallen body 1, the dual-axis self-locking motor 21 can be operated to drive the screw 22 to rotate, so that the two sliding rods 23 move back to their original positions on the outer surface of the screw 22, and then the U-shaped block 215 on the outer surface of the connecting rod 24 is pulled out, and the bending part of the connecting rod 24 is slightly deformed, and the pressure plate 26 is taken out from the inside of the loading barrel 27 to allow the air inside the loading barrel 27 to leak out, and the chemical raw materials inside the loading barrel 27 are cleaned and filled.

[0041] In the above embodiment, the utility model provides a photovoltaic inspection UAV. Through the provision of an airbag, if the UAV accidentally falls during use, the dual-axis self-locking motor on the top of the body can be operated to drive the two screws to rotate, so that the two sliding rods move in opposite directions on the outer surface of the screws, and the push rod is driven by the connecting rod to make the pressure plate slide on the inner wall of the loading barrel and compress and hit the sodium azide inside the loading barrel to produce a reaction, thereby generating a large amount of nitrogen gas, which is squeezed by the pressure plate and enters the interior of the airbag through the air pipe to fill the airbag. When the UAV falls, the weight of the water tank will cause the water tank of the body to fall downward, so that the airbag filled with nitrogen at the bottom will contact the ground, thereby providing buffering protection for the body and avoiding damage to the body as much as possible to affect normal use.

[0042] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various variations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the claims.

Claims

1. A photovoltaic inspection drone, comprising a body (1), a water tank (4) being arranged at the bottom of the body (1), characterized in that: A protective device (2) is provided on the top of the machine body (1), the protective device (2) comprising a double-axis self-locking motor (21) provided at the center of the top of the machine body (1), and two output shafts of the self-locking motor are respectively fixedly connected with screw rods (22), and charging barrels (27) filled with sodium azide are respectively fixedly provided at positions corresponding to the two screw rods (22) on the top of the machine body (1); wherein each screw rod (22) is connected to a push rod (25) via a "Z"-shaped connecting rod, and a pressing plate (26) that can slide back and forth in the corresponding charging barrel (27) is fixedly provided at one end of the push rod (25) away from the corresponding connecting rod, and a side of each charging barrel (27) away from the pressing plate (26) is connected to an air bag (29) provided at the bottom of the water tank (4) via an air pipe (28); At the same time, a prompting device (3) is provided at a position on the top of the machine body (1) above the protective device (2).

2. A photovoltaic inspection drone according to claim 1, characterized in that: The connecting rod comprises a sliding rod (23) threadedly connected to the screw rod (22); one end of the sliding rod (23) away from the screw rod (22) is fixedly connected to an L-shaped connecting rod (24) perpendicular to the sliding rod (23); and a push rod (25) is fixedly connected to one end of the connecting rod (24) away from the sliding rod (23) perpendicularly.

3. A photovoltaic inspection drone according to claim 2, characterized in that: Two slots (214) are provided at the corners of the connecting rod (24), and a U-shaped block (215) inserted into the two slots (214) is arranged above the connecting rod (24).

4. The photovoltaic inspection drone according to claim 2, characterized in that: A positioning groove (212) parallel to the loading barrel (27) is provided at the top of the machine body (1) and located on one side of each loading barrel (27); a vertical rectangular rod (213) is fixedly connected to the bottom of each connecting rod (24); and the bottom end of the rectangular rod (213) extends downward into the corresponding positioning groove (212) and can slide along the positioning groove (212).

5. The photovoltaic inspection drone according to claim 1, characterized in that: A vertical slot rod (210) is provided on the side wall of the machine body (1) at a position corresponding to each air delivery pipe (28), and the air delivery pipe (28) passes through the corresponding slot rod (210) to communicate with the air bag (29).

6. A photovoltaic inspection drone according to claim 1, characterized in that: A reinforcing strip (211) made of nylon is fixedly connected to the edge of the ground section of the airbag (29).

7. A photovoltaic inspection drone according to any one of claims 1 to 6, characterized in that: The prompting device (3) comprises round rods (31) vertically fixedly arranged at the four corners of the top of the body (1), each round rod (31) is sleeved with a circular ring (32) sliding up and down along itself, a light bar (33) is arranged between two adjacent circular rings (32), and a power supply mechanism for controlling the light bar (33) is arranged on the light bar (33).

8. A photovoltaic inspection drone according to claim 7, characterized in that: The power supply mechanism comprises a touch rod (35) vertically arranged on the top of one of the round rods (31), and a contact point (36) matching with the touch rod (35) is arranged at a position of the light-emitting bar (33) corresponding to the touch rod (35).

9. A photovoltaic inspection drone according to claim 7, characterized in that: Each round rod (31) is sleeved with a spring (34) between the corresponding circular ring (32) and the machine body (1), and the top end of the spring (34) is fixedly connected to the corresponding circular ring (32), and the bottom end of the spring (34) is fixedly connected to the top of the machine body (1).

10. A photovoltaic inspection drone according to claim 9, characterized in that: Each circular ring (32) is fixedly connected to a drawstring (37), and one end of the drawstring (37) away from the corresponding circular ring (32) is fixedly wound around the screw rod (22).

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