Intelligent power grid inspection device

Abstract

The invention relates to the technical field of unmanned aerial vehicle inspection, in particular to an intelligent power grid inspection device. Comprising an unmanned aerial vehicle body; a water pump is fixedly connected to the belly position of the unmanned aerial vehicle body; the lower surface of the water pump is in threaded connection with a water tank through a liquid inlet hole; the two sides of the water pump are fixedly connected with inspection cameras; a liquid outlet hole in the front side of the water pump is fixedly connected with an injection pipe; the end, away from the water pump, of the spraying pipe is fixedly connected with a spraying base. The end, away from the water pump, of the spraying base is fixedly connected with a nozzle communicating with the spraying pipe. The spraying seat is fixedly connected with a first support arm forwards; the first support arm is connected with a baffle plate; the to-be-treated power grid component is hooked through the baffle and the first support arm, so that the distance between the intelligent power grid inspection device and the to-be-treated power grid component can be kept under the condition of overcoming counter-acting force in the process that the intelligent power grid inspection device sprays liquid through the spraying pipe, and then the treatment effect and stability of the power grid component are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) inspection technology, specifically to a smart power grid inspection device. Background Technology

[0002] Power grid inspection, as a core component of ensuring the safe and stable operation of the power system, requires regular, planned, and organized inspections, monitoring, assessments, and maintenance of power plants, substations, transmission lines, distribution equipment, and various power devices. Its core objective is to promptly identify and eliminate potential equipment malfunctions to ensure a reliable power supply. In traditional inspection methods, personnel must climb to inspect high-altitude transmission lines, insulators, and other components. This not only poses serious safety risks such as falls and electric shocks but is also inefficient due to terrain and weather conditions, failing to meet the maintenance needs of large-scale power grids. With the rapid development of drone technology, drones, with their flexibility, wide coverage, and high efficiency, have been widely applied to high-altitude power grid inspections. Expanding operational capabilities by mounting various functional accessories on the drone's exterior has become a key technological direction. The rational design and application of these external accessories directly determine the applicability and effectiveness of drone inspection operations. Currently, externally mounted monitoring modules and other accessories can effectively replace manual labor in line inspections and component status monitoring, significantly improving the safety and efficiency of inspection operations.

[0003] However, in practical applications of drone-based power grid inspection, key components such as transmission lines and insulators are prone to accumulating dust, oil, and other contaminants due to environmental factors. If these contaminants remain attached for a long time, they can lead to a decline in the insulation performance of components, increasing the risk of line flashovers, equipment breakdowns, and other faults, seriously threatening the safe operation of the power system. Therefore, it is necessary to clean the contaminated components promptly. Currently, the industry standard is to install a spray gun device on the drone's fuselage—a typical external mounting location—using a detachable bracket or fixed connector. This spray gun device, as a dedicated external operating accessory for the drone, requires its nozzle orientation to be precisely matched to the location of the component to be cleaned. It then sprays cleaning agent or compressed gas onto the component to achieve the flushing effect. To ensure cleaning effectiveness, the externally mounted spray gun device must be precisely aligned and close to the component to be cleaned. However, during the spraying process, the force and reaction time... The principle of force application involves the reverse thrust generated by the spraying being transmitted to the drone's fuselage through the spray gun's mounting structure. This causes instability and displacement of the fuselage, moving the spray gun away from the component to be cleaned. This displacement can lead to several problems. First, in complex power grid environments (such as around dense power lines and tower structures), the presence of external accessories increases the drone's overall size and collision risk, making it highly susceptible to collisions with surrounding obstacles. This can damage the spray gun, drone hardware, and disrupt inspection operations. Second, it increases the distance between the externally mounted spray gun and the component to be cleaned, causing the spray angle to deviate. This prevents the cleaning agent or compressed gas from effectively reaching the contaminated area, significantly reducing the effectiveness of contamination removal and failing to meet the cleaning and maintenance requirements of power grid components. This also highlights the shortcomings of current externally mounted drone accessories in terms of force balance design. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes an intelligent power grid inspection device. This invention hooks the power grid component to be processed with a baffle and a first arm, thereby enabling the intelligent power grid inspection device to maintain a distance from the power grid component while overcoming the reaction force during the process of spraying liquid through the spray pipe, thus ensuring the effectiveness and stability of the power grid component processing.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: An intelligent power grid inspection device of this invention includes a drone body; a water pump is fixedly connected to the belly of the drone body; a water tank is threadedly connected to the lower surface of the water pump through an inlet hole; inspection cameras are fixedly connected to both sides of the water pump; a spray pipe is fixedly connected to the outlet hole on the front side of the water pump; a spray base is fixedly connected to the end of the spray pipe away from the water pump; a nozzle communicating with the spray pipe is fixedly connected to the end of the spray base away from the water pump; a first arm is fixedly connected to the spray base facing forward; a baffle is connected to the first arm; the baffle and the first arm are arranged crosswise; the baffle and the first arm combine to form a hook shape.

[0006] Preferably, the side of the baffle closest to the nozzle is configured as a first arc-shaped surface; the most concave position of the first arc-shaped surface corresponds to the position of the nozzle.

[0007] Preferably, the spray base is fixedly connected to a second arm symmetrical to the first arm; the first arm has a first rotating hole at the end away from the spray base; a first rotating rod is rotatably connected to the first rotating hole via a torsion spring; the baffle is fixedly connected to the first rotating rod; the second arm has a second rotating hole at the end away from the spray base; a second rotating rod is telescopically connected to the second rotating hole; and the baffle has a locking hole corresponding to the second rotating hole.

[0008] Preferably, there are two baffles; the two baffles are symmetrically arranged on both sides of the first arm and the second arm; the two baffles are fixedly connected to the first rotating rod; a liquid spraying gap is formed between the two baffles.

[0009] Preferably, the spray base has an opening / closing groove communicating with the inside of the spray pipe on the side near the spray pipe; the bottom of the opening / closing groove is provided with a vent hole communicating with the outside; an opening / closing block is slidably and sealed inside the opening / closing groove; the opening / closing block is connected to the bottom of the opening / closing groove by an opening / closing spring; the arc-shaped inner wall of the opening / closing groove is connected to the bottom of the second rotating hole by a second support hole; the second rotating rod is movably and sealed to the second rotating hole; the second rotating rod is connected to the bottom of the second rotating hole by a second tension spring; the inside of the spray head is connected to the arc-shaped inner wall of the opening / closing groove by a third liquid hole; the position of the third liquid hole communicating with the opening / closing groove is positioned forward compared to the position of the second support hole communicating with the opening / closing groove.

[0010] Preferably, the side of the baffle away from the nozzle is provided with a second arc-shaped surface; the lowest point of the second arc-shaped surface is located in the middle section of the baffle.

[0011] Preferably, the end of the second rotating rod away from the second rotating hole is tapered; a spiral groove is provided on the inner wall of the second rotating hole; a spiral block is movably connected in the spiral groove; the spiral block is fixedly connected to the second rotating rod; the rotating block is rotatably connected to the side of the second rotating rod near the second tension spring; one end of the second tension spring is fixedly connected to the bottom of the second rotating hole, and the other end is fixedly connected to the rotating block.

[0012] Preferably, the first rotating hole is rotatably and sealingly connected to the first rotating rod; an annular groove is provided on the inner wall of the first rotating hole; the interior of the annular groove is connected to the arc-shaped inner wall of the opening and closing groove through a first support hole; the position where the first support hole connects to the opening and closing groove is positioned further forward than the position where the second support hole connects to the opening and closing groove; an extension groove is provided on the side of the baffle near the nozzle; the bottom of the extension groove is connected to the annular groove through an extension hole; an extension plate is slidably connected inside the extension groove; the extension plate and the bottom of the extension groove are connected by a third tension spring.

[0013] Preferably, the extension plate has a third arc-shaped surface on the side near the nozzle; the concave limit position of the third arc-shaped surface corresponds to the position of the nozzle.

[0014] Preferably, the spray pipe is composed of a front pipe and a rear pipe; the front pipe is connected to the spray base; the rear pipe is connected to the water pump; the outer diameter of the front pipe and the inner diameter of the rear pipe are adapted to each other and are interlocked; the inner and outer walls of the rear pipe are provided with threaded holes; and bolts are threaded into the threaded holes.

[0015] The beneficial effects of this invention are as follows: 1. The present invention hooks the power grid component to be processed by a baffle and a first arm, so that the smart power grid inspection device can maintain a distance from the power grid component to be processed while overcoming the reaction force during the process of spraying liquid with the spray pipe, thereby ensuring the effectiveness and stability of the power grid component being processed.

[0016] 2. The present invention achieves stable clamping and automatic locking and unlocking of the power grid components through a symmetrically arranged first arm, second arm and a double baffle structure that can be flipped and locked, thereby improving the stability and positioning accuracy during spraying; the liquid spraying gap formed between the double baffles is conducive to the discharge of dirt.

[0017] 3. This invention automatically controls the extension and retraction of the second rotating rod through liquid pressure, thereby achieving automatic locking and unlocking of the baffle. It has a compact structure, rapid response, and coordinated spraying and locking actions, improving the processing efficiency and stability of power grid components. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the drone body in this invention; Figure 3 This is a perspective view of the spray pipe, spray base, first support arm, second support arm, and baffle in this invention. Figure 4 This is a perspective view of the spray pipe, spray base, first support arm, and second support arm in this invention; Figure 5 This is a perspective view of the baffle in this invention; Figure 6 This is a cross-sectional view of the baffle in this invention; Figure 7 This is a cross-sectional view of the spray pipe, spray base, first support arm, and second support arm in this invention. Figure 8 This is a cross-sectional view of the first and second rotating holes of the present invention; Figure 9 This is a diagram showing the location of the spiral groove in this invention.

[0020] In the diagram: 1. UAV body; 2. Water pump; 21. Water tank; 22. Inspection camera; 3. Spray pipe; 31. Front pipe; 32. Rear pipe; 33. Threaded hole; 34. Bolt; 4. Spray base; 41. Nozzle; 42. Opening / closing groove; 43. Vent hole; 44. Opening / closing block; 45. Opening / closing spring; 46. Third liquid hole; 5. First support arm; 51. First rotating hole; 52. Torsion spring; 53. First rotating rod; 54. Annular groove; 55. First support hole; 6. Baffle; 61. First arc-shaped surface; 62. Lock hole; 63. Spray gap; 64. Second arc-shaped surface; 65. Extension groove; 66. Extension hole; 67. Extension plate; 68. Third tension spring; 69. Third arc-shaped surface; 7. Second support arm; 71. Second rotating hole; 72. Second support hole; 73. Spiral groove; 8. Second rotating rod; 81. Second tension spring; 82. Spiral block; 83. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 9 As shown, the present invention includes the following embodiments: Example 1: A smart grid inspection device includes a drone body 1; a water pump 2 is fixedly connected to the belly of the drone body 1; a water tank 21 is threadedly connected to the lower surface of the water pump 2 through an inlet hole; inspection cameras 22 are fixedly connected to both sides of the water pump 2; a spray pipe 3 is fixedly connected to the outlet hole on the front side of the water pump 2; a spray base 4 is fixedly connected to the end of the spray pipe 3 away from the water pump 2; a nozzle 41 communicating with the spray pipe 3 is fixedly connected to the end of the spray base 4 away from the water pump 2; a first support arm 5 is fixedly connected to the spray base 4 facing forward; a baffle 6 is connected to the first support arm 5; the baffle 6 and the first support arm 5 are arranged crosswise; the baffle 6 and the first support arm 5 combine to form a hook shape.

[0023] In this embodiment, the side of the baffle 6 near the nozzle 41 is configured as a first arc-shaped surface 61; the most concave position of the first arc-shaped surface 61 corresponds to the position of the nozzle 41.

[0024] For power grid inspections at low locations, the inlet of water pump 2 is threaded onto a hose, which is suspended by the drone body 1 to ensure continuous water supply. For power grid inspections at high locations, the inlet of water pump 2 is threaded onto a water tank 21. Taking the connection between water pump 2 and water tank 21 as an example, the drone body 1 is controlled to take off. During takeoff, the drone body 1 suspends the miniature water pump 2 located on its belly and the inspection cameras 22 on both sides of the water pump 2. As the water pump 2 is suspended, the jet pipe 3 and the water tank 21 are also suspended. The drone body 1 will then inspect along the power grid. The inspection cameras 22 located on the belly of the drone body 1 will capture images of abnormal locations in the power grid and upload them. After terminal analysis, anomalies are identified. For abnormal locations, the positioning unit inside the drone body 1 marks the location and transmits the location data to the terminal for recording. This allows for accurate location of the repair point during subsequent maintenance by workers, based on the previously marked location and the image data captured by the inspection camera 22. This significantly shortens maintenance time and improves the efficiency and convenience of power grid maintenance. During the inspection process along the power grid, if the drone body 1 encounters accumulated dirt on power grid components such as wires or insulators, the intelligent power grid inspection device needs to be controlled for processing. Specifically, the drone body 1 controls the spray nozzle 3 to approach the point to be processed. Due to the presence of the baffle 6 and the first... The support arm 5 is assembled into a hook shape, so the baffle 6 can pass over the insulator or wire and hook the electric grid component. Then, the water pump 2 is controlled to work. The water tank 21 contains water containing detergent and bird repellent. The water is pumped by the water pump 2 into the inlet hole and discharged into the spray pipe 3 through the outlet hole. The water in the spray pipe 3 will be sprayed out along the nozzle 41. At the moment the nozzle 41 sprays water, the nozzle 41 and the spray pipe 3 will have a reaction force away from the electric grid component. However, since the electric grid component is hooked by the baffle 6, the nozzle 41 will spray while maintaining a close distance from the electric grid component. The detergent and bird repellent in the water are sprayed onto the electric grid component to clean the dirt. The drone body 1 can choose to hook the electric grid component with the baffle 6. Moving the spray along the length of the electric grid component allows the baffle 6 to be removed from the component and moved to the next position, repeating the aforementioned dirt cleaning process. Furthermore, since the side of the baffle 6 closest to the nozzle 41 is configured as a first arc-shaped surface 61, when the baffle 6 hooks the electric grid component, the reaction force of the nozzle 41 after spraying water will cause the first arm 5 and the baffle 6 to move slightly towards the drone body 1. The electric grid component will slide to the most concave position inside the first arc-shaped surface 61, and the most concave position of the first arc-shaped surface 61 will be aligned with the position of the nozzle 41. This changes the relative position of the electric grid component and the nozzle 41, thereby achieving the positioning of the electric grid component being processed and ensuring the processing stability of the electric grid component. The present invention uses a baffle 6 and a first support arm 5 to hook the power grid component to be processed, so that the smart power grid inspection device can maintain a distance from the power grid component to be processed while overcoming the reaction force during the process of spraying liquid using the spray pipe 3, thereby ensuring the effectiveness of processing the power grid component.

[0025] Example 2: The spray base 4 is fixedly connected to a second arm 7 symmetrical to the first arm 5; the first arm 5 is provided with a first rotating hole 51 at the end away from the spray base 4; a first rotating rod 53 is rotatably connected to the first rotating hole 51 through a torsion spring 52; the baffle 6 is fixedly connected to the first rotating rod 53; the second arm 7 is provided with a second rotating hole 71 at the end away from the spray base 4; a second rotating rod 8 is telescopically connected to the second rotating hole 71; the baffle 6 is provided with a locking hole 62 corresponding to the second rotating hole 71.

[0026] In this embodiment, there are two baffles 6; the two baffles 6 are symmetrically arranged on both sides of the first support arm 5 and the second support arm 7; the two baffles 6 are fixedly connected to the first rotating rod 53; a liquid spraying gap 63 is formed between the two baffles 6.

[0027] When it is necessary to spray dirt from the power grid components, the drone body 1 will control the spray nozzle 3 to approach the power grid components. The spray nozzle 3 will cause the baffle 6 to contact the power grid components. In the initial state, the second rotating rod 8 retracts into the second rotating hole 71. The locking hole 62 on the baffle 6 is not inserted with the second rotating rod 8, so the locking hole 62 on the baffle 6 is in the unlocked state. During the contact between the baffle 6 and the power grid components, the baffle 6 is compressed against the torsion spring 52, which causes the first rotating rod 53 to rotate in the first rotating hole 51. During the inward flipping of the baffle 6, the openings of the first arm 5 and the second arm 7 away from the spray base 4 will open. Subsequently, after the power grid components pass the baffle 6, the torsion spring 52 will cause the first rotating rod 53 to rotate and reset. The first rotating rod 53 will cause the baffle 6 to rotate and reset. The locking hole 62 on the baffle 6 will be aligned with the second rotating hole 71 again, and the second rotating rod 8 will extend out of the second rotating hole 71 and engage. Within the locking hole 62, the baffle 6 is locked. Due to the action of the second arm 7, the electric grid component is secured, thereby improving the stability of the electric grid component during the process of being sprayed with liquid by the nozzle 41. After the dirt on the electric grid component is cleaned, the second rotating rod 8 moves out of the locking hole 62 and retracts into the second rotating hole 71. Then, the drone body 1 is controlled to move away from the electric grid component. The electric grid component will squeeze the baffle 6, causing the baffle 6 to drive the first rotating rod 53 to rotate in the first rotating hole 51 against the torsion spring 52. The baffle 6 moves outward and flips, allowing the electric grid component to move out from the inside of the first arm 5 and the second arm 7. Furthermore, there are two baffles 6. With two baffles 6 hooking the electric grid component, the stability is stronger. After the nozzle 41 sprays liquid, the liquid can come into contact with the dirt on the electric grid component, and the dirt can flow away smoothly along the spray gap 63, improving the maintenance effect of the electric grid component. The present invention achieves stable clamping and automatic locking and unlocking of power grid components through a symmetrically arranged first arm 5, second arm 7 and a double baffle 6 that can be flipped and locked, thereby improving the stability and positioning accuracy during spraying. The spray gap 63 formed between the double baffles 6 is conducive to the discharge of dirt.

[0028] Example 3: The spray base 4 is provided with an opening and closing groove 42 that communicates with the inside of the spray pipe 3 on the side near the spray pipe 3; the bottom of the opening and closing groove 42 is provided with a vent hole 43 that communicates with the outside; an opening and closing block 44 is slidably and sealed inside the opening and closing groove 42; the opening and closing block 44 is connected to the bottom of the opening and closing groove 42 by an opening and closing spring 45; the arc-shaped inner wall of the opening and closing groove 42 is connected to the bottom of the second rotating hole 71 by a second branch hole 72; the second rotating rod 8 is movably and sealed to the second rotating hole 71; the second rotating rod 8 is connected to the bottom of the second rotating hole 71 by a second tension spring 81; the inside of the nozzle 41 is connected to the arc-shaped inner wall of the opening and closing groove 42 by a third liquid hole 46; the position of the third liquid hole 46 communicating with the opening and closing groove 42 is set forward compared to the position of the second branch hole 72 communicating with the opening and closing groove 42.

[0029] After the grid component squeezes the baffle 6, causing it to flip inward and reset, the locking hole 62 on the baffle 6 aligns with the second rotating hole 71. Then, the water pump 2 pumps liquid along the outlet hole into the inside of the spray pipe 3. The liquid inside the spray pipe 3 squeezes the opening and closing block 44 in the opening and closing groove 42. The opening and closing block 44 divides the opening and closing groove 42 into a front chamber and a rear chamber. The rear chamber is connected to the inside of the spray pipe 3, and the front chamber is connected to the vent hole 43. The gas in the front chamber is discharged along the vent hole 43 under the squeezing action of the opening and closing block 44. The opening and closing block 44 is pressed against the opening and closing spring 45 and moves closer to the bottom of the opening and closing groove 42, thus causing the second branch hole 72 to be exposed first. The liquid in the rear chamber flows along the second branch hole 72 into the second rotating hole 71, causing the second rotating rod 8 to be squeezed by the liquid in the second rotating hole 71 and move outward against the second tension spring 81. The second rotating rod 8 will... Inserted into the lock hole 62, the baffle 6 is locked. As the opening and closing block 44 continues to approach the bottom of the opening and closing groove 42, the front cavity gradually becomes smaller and the rear cavity gradually becomes larger. The third liquid hole 46 will be exposed. The liquid in the rear cavity will flow into the nozzle 41 along the third liquid hole 46 and spray out along the nozzle 41. After the spraying is completed, the water pump 2 stops working, the liquid pressure in the spray pipe 3 will decrease, and the second tension spring 81 will pull the second rotating rod 8 out of the lock hole 62, thereby unlocking the baffle 6. The second rotating rod 8 will squeeze the liquid in the second rotating hole 71 back to the rear cavity along the second branch hole 72. Since the speed at which the outside gas enters the front cavity along the vent hole 43 is relatively slow, the return speed of the opening and closing block 44 in the opening and closing groove 42 is less than the speed at which the second rotating rod 8 retracts to the second rotating hole 71, so that the second rotating rod 8 can successfully unlock the lock hole 62. This invention automatically controls the extension and retraction of the second rotating rod 8 through liquid pressure, thereby achieving automatic locking and unlocking of the baffle 6. It has a compact structure, rapid response, and coordinated spraying and locking actions, improving the processing efficiency and stability of power grid components.

[0030] Example 4: The side of the baffle 6 away from the nozzle 41 is provided with a second arc-shaped surface 64; the lowest point of the second arc-shaped surface 64 is located in the middle section of the baffle 6.

[0031] A second arc-shaped surface 64 is provided on the side of the baffle 6 away from the nozzle 41. Therefore, during the contact between the baffle 6 and the electric grid component, the second arc-shaped surface 64 enables the electric grid component to be precisely stressed with the baffle 6, preventing the electric grid component from slipping off the baffle 6, and allowing the baffle 6 to open smoothly against the torsion spring 52.

[0032] Example 5: The end of the second rotating rod 8 away from the second rotating hole 71 is tapered; a spiral groove 73 is provided on the inner wall of the second rotating hole 71; a spiral block 82 is movably connected in the spiral groove 73; the spiral block 82 is fixedly connected to the second rotating rod 8; the rotating block 83 is rotatably connected to the side of the second rotating rod 8 near the second tension spring 81; one end of the second tension spring 81 is fixedly connected to the bottom of the second rotating hole 71, and the other end is fixedly connected to the rotating block 83.

[0033] When liquid enters the second rotating hole 71, the liquid will squeeze the second rotating rod 8, causing the second rotating rod 8 to move away from the bottom of the second rotating hole 71. During the outward movement of the second rotating rod 8, it will drive the spiral block 82 to move within the spiral groove 73. The spiral block 82 is block-shaped. As the spiral block 82 slides along the spiral groove 73, it will cause the second rotating rod 8 to rotate. Since the rotating block 83 is rotatably connected to the second rotating rod 8, the setting of the rotating block 83 will not affect the rotation of the second rotating rod 8. The end of the second rotating rod 8 away from the second rotating hole 71 is tapered, so the end of the second rotating rod 8 away from the second tension spring 81 can smoothly enter the locking hole 62 during rotation, thus achieving smooth locking of the locking hole 62. When the liquid in the second rotating hole 71 flows out, the second tension spring 81 will pull the rotating block 83 closer to the bottom of the second rotating hole 71, and the rotating block 83 will pull the second rotating rod 8 back into the second rotating hole 71. The rotating block 83 can be frustum-shaped, and the size of the rotating block 83 will be increased as it moves away from the second tension spring 81.

[0034] Example 6: The first rotating hole 51 is rotatably and sealingly connected to the first rotating rod 53; an annular groove 54 is provided on the inner wall of the first rotating hole 51; the interior of the annular groove 54 is connected to the arc-shaped inner wall of the opening and closing groove 42 through the first support hole 55; the position where the first support hole 55 is connected to the opening and closing groove 42 is positioned further forward than the position where the second support hole 72 is connected to the opening and closing groove 42; an extension groove 65 is provided on the side of the baffle 6 near the nozzle 41; the bottom of the extension groove 65 is connected to the annular groove 54 through the extension hole 66; an extension plate 67 is slidably connected inside the extension groove 65; the extension plate 67 and the bottom of the extension groove 65 are connected by a third tension spring 68.

[0035] In this embodiment, the extension plate 67 is provided with a third arc-shaped surface 69 on the side near the nozzle 41; the concave limit position of the third arc-shaped surface 69 corresponds to the position of the nozzle 41.

[0036] From front to back, the positions where the third liquid hole 46 connects to the opening and closing groove 42, the positions where the first branch hole 55 connects to the opening and closing groove 42, and the positions where the second branch hole 72 connects to the opening and closing groove 42 are arranged sequentially. After the water pump 2 fills the spray pipe 3 with liquid, the opening and closing block 44 is pushed, and the second branch hole 72, the first branch hole 55, and the third liquid hole 46 open sequentially. After the liquid enters the second branch hole 72, the locking hole 62 will be inserted and locked by the second rotating rod 8. The liquid in the rear cavity will flow along the first branch hole 55 into the annular groove 54, and then flow along the annular groove 54 into the extension hole 66. The increase in liquid in the extension groove 65 will push the extension plate 67 away from the bottom of the extension groove 65. The extension plate 67 will push the electric grid component, further reducing the distance between the electric grid component and the nozzle 41. The shorter length improves the spraying effect of the nozzle 41 on the electrical grid components. Furthermore, since the extension plate 67 has a third arc-shaped surface 69 on the side near the nozzle 41, the electrical grid components move to the most concave position of the third arc-shaped surface 69, aligning the electrical grid components with the nozzle 41, thereby further positioning the electrical grid components. After spraying is completed, the water pump 2 stops working. Before the opening and closing block 44 returns to its original position, the third tension spring 68 will pull the extension plate 67 back to the extension groove 65. The liquid in the extension groove 65 will flow back to the rear cavity along the extension hole 66, the annular groove 54 and the first branch hole 55. The liquid in the second rotating hole 71 will flow back to the rear cavity. Then the opening and closing block 44 will move away from the bottom of the opening and closing groove 42, that is, move backward, so that the opening and closing block 44 blocks the second branch hole 72 and the first branch hole 55.

[0037] Example 7: The spray pipe 3 is composed of a front pipe 31 and a rear pipe 32; the front pipe 31 is connected to the spray base 4; the rear pipe 32 is connected to the water pump 2; the outer diameter of the front pipe 31 and the inner diameter of the rear pipe 32 are adapted to each other and are interlocked; the inner and outer walls of the rear pipe 32 are provided with threaded holes 33; the threaded holes 33 are internally threaded with bolts 34.

[0038] With bolt 34 loosened, the front tube 31 can be pulled out and moved into the rear tube 32, changing the total length of the injection tube 3. The front tube 31 can also rotate within the rear tube 32 to satisfy the hooking direction of the baffle 6 on the electric grid components. It can hook some horizontal, vertical or inclined electric grid components, and has a wide range of applications. After the adjustment of the injection tube 3 is completed, the bolt 34 is tightened against the outer wall of the front tube 31, and the front tube 31 and the rear tube 32 are movably sealed and can be locked by the bolt 34.

[0039] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0040] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart grid inspection device, comprising a drone body; a water pump fixedly connected to the belly of the drone body; a water tank threadedly connected to the lower surface of the water pump via an inlet hole; inspection cameras fixedly connected to both sides of the water pump; and a spray pipe fixedly connected to the outlet hole on the front side of the water pump; characterized in that: The spray pipe is fixedly connected to a spray base at the end away from the water pump; the spray base is fixedly connected to a nozzle that communicates with the spray pipe at the end away from the water pump; the spray base is fixedly connected to a first support arm facing forward; the first support arm is connected to a baffle; the baffle and the first support arm are arranged crosswise; the baffle and the first support arm are combined to form a hook shape.

2. The smart grid inspection device according to claim 1, characterized in that: The side of the baffle closest to the nozzle is configured as a first arc-shaped surface; the most concave position of the first arc-shaped surface corresponds to the position of the nozzle.

3. The smart grid inspection device according to claim 1, characterized in that: The spray base is fixedly connected to a second arm symmetrical to the first arm; the first arm has a first rotating hole at the end away from the spray base; a first rotating rod is rotatably connected to the first rotating hole via a torsion spring; the baffle is fixedly connected to the first rotating rod; the second arm has a second rotating hole at the end away from the spray base; a second rotating rod is telescopically connected to the second rotating hole; the baffle has a locking hole corresponding to the second rotating hole.

4. The smart grid inspection device according to claim 3, characterized in that: The number of baffles is two; the two baffles are symmetrically arranged on both sides of the first arm and the second arm; the two baffles are fixedly connected to the first rotating rod; a liquid spraying gap is formed between the two baffles.

5. The smart grid inspection device according to claim 3, characterized in that: The spray base has an opening / closing groove connected to the inside of the spray pipe on the side near the spray pipe; the bottom of the opening / closing groove has a vent hole connected to the outside; an opening / closing block is slidably and sealed inside the opening / closing groove; the opening / closing block is connected to the bottom of the opening / closing groove by an opening / closing spring; the arc-shaped inner wall of the opening / closing groove is connected to the bottom of the second rotating hole by a second branch hole; the second rotating rod is movably and sealed to the second rotating hole; the second rotating rod is connected to the bottom of the second rotating hole by a second tension spring; the inside of the spray head is connected to the arc-shaped inner wall of the opening / closing groove by a third liquid hole; the position of the third liquid hole connecting to the opening / closing groove is forward compared to the position of the second branch hole connecting to the opening / closing groove.

6. The smart grid inspection device according to claim 3, characterized in that: The side of the baffle away from the nozzle is provided with a second arc-shaped surface; the lowest point of the second arc-shaped surface is located in the middle section of the baffle.

7. The smart grid inspection device according to claim 5, characterized in that: The end of the second rotating rod away from the second rotating hole is tapered; a spiral groove is provided on the inner wall of the second rotating hole; a spiral block is movably connected in the spiral groove; the spiral block is fixedly connected to the second rotating rod; the rotating block is rotatably connected to the side of the second rotating rod near the second tension spring; one end of the second tension spring is fixedly connected to the bottom of the second rotating hole, and the other end is fixedly connected to the rotating block.

8. The smart grid inspection device according to claim 3, characterized in that: The first rotating hole is rotatably and sealingly connected to the first rotating rod; an annular groove is provided on the inner wall of the first rotating hole; the interior of the annular groove is connected to the arc-shaped inner wall of the opening and closing groove through a first support hole; the position where the first support hole connects to the opening and closing groove is positioned further forward than the position where the second support hole connects to the opening and closing groove; an extension groove is provided on the side of the baffle near the nozzle; the bottom of the extension groove is connected to the annular groove through an extension hole; an extension plate is slidably connected inside the extension groove; the extension plate and the bottom of the extension groove are connected by a third tension spring.

9. A smart grid inspection device according to claim 8, characterized in that: The extension plate has a third arc-shaped surface on the side near the nozzle; the concave limit position of the third arc-shaped surface corresponds to the position of the nozzle.

10. The smart grid inspection device according to claim 1, characterized in that: The spray pipe is composed of a front pipe and a rear pipe; the front pipe is connected to the spray base; the rear pipe is connected to the water pump; the outer diameter of the front pipe and the inner diameter of the rear pipe are adapted to each other and are interlocked; the inner and outer walls of the rear pipe are provided with threaded holes; bolts are threaded into the threaded holes.

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