High-precision flight hovering unmanned aerial vehicle mounting current detection system

Abstract

The invention relates to the technical field of cable air detection devices, in particular to a high-precision flight hovering unmanned aerial vehicle mounted current detection device. Comprising an unmanned aerial vehicle, and a suspension bracket is hung below the unmanned aerial vehicle; a transmission assembly is arranged on one side of the suspension frame, two folding arms are symmetrically arranged on the transmission assembly, and the transmission assembly drives the folding arms to transversely move, rotate or fold; the cable detection device is mounted on the unmanned aerial vehicle, the detection requirements of cables with different heights can be met, meanwhile, the transmission assembly is matched with the folding arm, the cable detection device can be in butt joint with the cables in a hovering state, the operation difficulty is reduced, synchronous detection of two cables can be completed at a time when multiple cables are detected, the detection efficiency is effectively improved, and the detection cost is reduced. And the balance assembly can assist in keeping overall balance, so that the difficulty of butt joint operation is further reduced, and the overall stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable aerial detection devices, and in particular to a high-precision flying hovering unmanned aerial vehicle mounting current detection device. Background Art

[0002] During cable power transmission, maintenance personnel need to regularly test the cable current in each area to evaluate the operating status of the cable in order to ensure the normal operation of the power grid. In traditional evaluation operations, for low-altitude cables, workers often climb poles or power brackets with clamp meters to achieve detection. However, for high-altitude cables, there is no good solution due to the high connection height. Relying solely on manual climbing is labor-intensive, difficult to operate, and has certain operational risks, such as electric shock, falling, etc., which threaten the life and health of maintenance personnel. At the same time, the traditional detection mode has relatively low detection efficiency and cannot meet actual detection needs. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a high-precision flying hovering drone mounted current detection device in response to the above-mentioned technical deficiencies. By being mounted on a drone, it can meet the detection needs of cables at different heights. At the same time, by utilizing the transmission component in conjunction with the folding arm, it can dock with the cable in a hovering state, reducing the difficulty of operation. In addition, for the detection of multiple cables, two cables can be synchronously detected at one time, effectively improving the detection efficiency. The balancing component can assist in maintaining the overall balance, further reducing the difficulty of the docking operation, and improving the overall stability.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention includes:

[0005] A drone, wherein a suspension frame is mounted below the drone;

[0006] A suspension frame, one side of which is provided with a transmission assembly, and two folding arms are symmetrically provided on the transmission assembly, the transmission assembly drives the folding arms to perform lateral movement, rotation or folding action, and is used to adjust the end position of the folding arms to achieve the docking measurement of the line, and the other side of the suspension frame is provided with an adjustable balancing assembly;

[0007] A receiving end, wherein the receiving end is used to display the current value detected by the end of the folding arm.

[0008] Preferably, the transmission assembly includes a transverse shaft, a support shaft and a drive separation component; both sides of the transverse shaft are respectively connected to the suspension frame as a rotating shaft, and the middle part of the transverse shaft has a threaded section with opposite thread rotation directions at both ends; two support plates respectively connected to the threaded sections are symmetrically arranged on the support shaft, and special-shaped gears connected to the suspension frame are symmetrically arranged at both ends of the support shaft, and the special-shaped gears and both ends of the transverse shaft are connected to the drive separation component.

[0009] Preferably, the driving separation component includes a driving shaft, a sliding sleeve, a driven wheel and a power component; the driving shafts are arranged in pairs, the middle part is connected to the suspension frame by a rotating shaft, a return spring is provided at one end, and a docking plate is provided at the other end, and a brake component is provided on one side of the docking plate on the driving shaft; a driving wheel connected to the special-shaped gear is provided on the sliding sleeve, and a support ear connected to the suspension frame is provided at the end of the sliding sleeve; the driven wheel is connected to the side rotating shaft of the suspension frame and to the end of the transverse shaft; the power component is connected to the driving shaft.

[0010] Preferably, the power component includes a first motor and a second motor; the first motor is provided with a diamond-shaped power wheel in contact with the end of the driving shaft; the second motor is connected to the middle of the driving shaft through a gear.

[0011] Preferably, the brake member comprises a bracket and a rack; the bracket is fixed to the driving shaft at the top and connected to one side of the rack at the bottom; and positioning columns slidably connected to the support ears are symmetrically provided on the rack.

[0012] Preferably, a slidably displaceable stop plate is provided at the driven wheel, and a plurality of through holes are provided on the driven wheel; and a plurality of trigger columns are provided around the outer circle of the docking plate.

[0013] Preferably, a guide strip is provided at the end of the driving shaft; and a guide groove connected to the guide strip is provided on the inner wall of the sliding sleeve.

[0014] Preferably, the folding arm includes a base, an arm body, a measuring rod and a winding piece; the base is connected to the transmission assembly, and the base is provided with an extrusion cylinder connected to the arm body; one end of the arm body is connected to the base by a rotating shaft, and one side of the arm body is provided with a movable cylinder connected to the extrusion cylinder, and the movable cylinder is provided with an angle adjustment piece; the measuring rod is slidably connected to the arm body, and one end is connected to the angle adjustment piece; the winding piece is fixed to the side wall of the suspension frame, and is connected to the arm body through a rope body.

[0015] Preferably, the angle adjustment member includes an adjustment rod and a rotating sleeve; the adjustment rod is fixed to the middle of the two movable cylinders; the middle of the rotating sleeve is sleeved with the arm body, one end is connected to the adjustment rod, and the other end is provided with a sliding frame connected to the measuring rod.

[0016] Preferably, the balancing assembly includes a base and a counterweight cylinder; the base is connected to the right side of the suspension frame, a fixed sleeve is symmetrically provided on the base, a plurality of connecting holes are provided on the fixed sleeve, a transmission member for driving the displacement of the fixed sleeve is provided in the middle of the base, a rotatable liquid distribution pipe is provided inside the fixed sleeve; a plurality of the counterweight cylinders are installed at the connecting holes, a volume-adjustable cavity is provided inside the counterweight cylinder, and a driving rod connected to the base is provided above the counterweight cylinder.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. By combining the suspension frame with the drone, the drone power is used to drive the whole to hover near the cable, and then the transmission component is used to adjust the angle and position of the folding arm to achieve docking measurement with the cable, which greatly reduces the difficulty of detection, can effectively cope with the detection of cables in different areas, improve detection efficiency, and avoid operational risks;

[0019] 2. The folding arm is separated to both sides of the suspension frame and folded to 90 degrees. The rotation adjustment of the claw part is completed during the folding process. Therefore, during the measurement, the measurement of two cables can be completed at one time by controlling the displacement of the measuring rod, reducing the position adjustment of the drone, greatly improving the detection efficiency and shortening the adjustment time.

[0020] 3. During the folding process, the movable cylinder is extended by relying on liquid pressure, thereby pushing the rotary sleeve to rotate 90 degrees along the adjusting rod, so as to achieve the effect of automatically adjusting the position of the measuring rod claw hand, and after it is in place, the positioning lock is realized. When unfolding, the liquid is pumped again to complete the reset. The overall structure is stable and no additional power part is required, which reduces the manufacturing cost;

[0021] 4. The power switching can be realized by driving the separation parts to meet the lateral displacement adjustment and angle adjustment of the folding arm. After the adjustment, each of them can complete the locking of its own partial structure, maintaining the stability after the adjustment. The locking positioning can be carried out by adjusting the position between the parts. The transmission is precise and ingenious, avoiding the damage of the braking force to the motor and extending the service life.

[0022] 5. By configuring a water tank on the suspension frame and using a pump to transport water into each counterweight cylinder, the change in the liquid gravity position is used for counterweighting to cope with the balance problem caused by the change in the position of the folding arm, reduce the difficulty of operating the drone and improve stability;

[0023] 6. By adding liquid to each counterweight cylinder, the gravity can be adjusted, and the overall extension can be used to further balance the balance of the folding arm when it is unfolded. At the same time, the counterweight cylinder can be driven to rotate. The position can also be adjusted to fine-tune the balance, adapt to the auxiliary balance operation in different states, reduce the workload of the drone, and improve stability.

[0024] 7. The liquid distribution pipe adopts a multi-cavity structure, which is connected with the counterweight cylinders at different positions through connecting holes. Liquid distribution and transportation can be carried out as needed. The structural design of the connecting holes can maintain the liquid supply operation when the counterweight cylinder is rotated at a certain angle, and the structural layout is reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a high-precision flying and hovering UAV mounting current detection device;

[0026] Figure 2 It is a schematic diagram of the transmission assembly layout;

[0027] Figure 3 It is a schematic diagram of the connection status of the transmission component;

[0028] Figure 4 It is a connection diagram of the drive separation part;

[0029] Figure 5 It is a schematic diagram of the structure of the driving separation component;

[0030] Figure 6 It is a schematic diagram of the connection between the power piece and the driving shaft;

[0031] Figure 7 This is a schematic diagram of the explosion at the driving shaft;

[0032] Figure 8 This is a demonstration diagram of the folding arm in the bent state;

[0033] Fig. 9 It is a schematic diagram of the folding arm in the extended state;

[0034] Fig.10 Schematic diagram of the internal structure of the arm;

[0035] Fig.11 This is a schematic diagram of the manual adjustment structure of the measuring rod;

[0036] Fig.12 Schematic diagram for balancing component layout;

[0037] Fig.13 It is a schematic diagram of the structure of the balancing component;

[0038] Fig.14 It is a schematic diagram of the fixed sleeve structure;

[0039] Fig.15 It is a schematic diagram of the end of the liquid distribution pipe;

[0040] Fig.16 Schematic diagram of the internal structure of the liquid distribution pipe;

[0041] Fig.17Schematic diagram of the internal structure of the cavity;

[0042] Fig.18 This is a simplified diagram of the entire system;

[0043] Fig.19 This is a demonstration diagram of the drone mounting detection status.

[0044] In the figure: 1, suspension frame; 2, transmission assembly; 3, folding arm; 4, balance assembly; 5, drive separation member; 6, power member; 7, angle adjustment member; 8, base; 9, counterweight cylinder; 10, liquid distribution pipe; 11, drone; 12, receiving end; 201, traverse axis; 202, support axis; 203, threaded section; 204, support plate; 205, special-shaped gear; 301, base; 302, arm body; 303, measuring rod; 304, winding member; 305, extrusion cylinder; 306, movable cylinder; 501, driving shaft; 502, sliding sleeve; 503, driven wheel; 504 , return spring; 505, docking plate; 506, brake member; 507, driving wheel; 508, support ear; 5011, guide strip; 5021, guide groove; 5031, stop plate; 5032, through hole; 5051, trigger column; 5061, bracket; 5062, rack; 5063, positioning column; 601, first motor; 602, second motor; 603, power wheel; 701, adjusting rod; 702, rotating sleeve; 703, sliding frame; 801, fixed sleeve; 802, connecting hole; 803, transmission member; 901, cavity; 902, driving rod. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0046] Specific implementation method 1: Combination Figure 1-19 As shown, a high-precision flying hovering UAV mounted current detection device comprises: a UAV 11, wherein a suspension frame 1 is mounted below the UAV 11; the suspension frame 1, wherein a transmission component 2 is provided on one side of the suspension frame 1, and two folding arms 3 are symmetrically provided on the transmission component 2, the transmission component 2 drives the folding arms 3 to move laterally, rotate or fold, and is used to adjust the end position of the folding arms 3 to realize the docking measurement of the line, and an adjustable balancing component 4 is provided on the other side of the suspension frame 1; and a receiving end 12, wherein the receiving end 12 is used to display the current value detected at the end of the folding arm 3.

[0047] A preferred embodiment, in combination with Figure 1-3As shown, the transmission assembly 2 includes a transverse shaft 201, a support shaft 202 and a driving separation member 5; the two sides of the transverse shaft 201 are respectively connected to the suspension frame 1 as a rotating shaft, and the middle of the transverse shaft 201 is processed with a threaded segment 203 with opposite threads at both ends; the support shaft 202 is arranged along the circumferential direction by a plurality of cylindrical rods, and is fixedly connected to special-shaped gears 205 at both ends, and is slidably connected to a support plate 204 in the middle, and the center position of the support plate 204 has a threaded sleeve connected to the threaded segment, and the threaded sleeve and the support plate 204 are rotatably connected, and the special-shaped gear 205 and the two ends of the transverse shaft 201 are connected to the driving The dynamic separation member 5 is connected by transmission; through two sections of threaded segments 203 with opposite rotation directions, which are connected with corresponding threaded sleeves, the two support plates 204 can be displaced in relative or opposite directions when the transverse shaft 201 rotates, so as to complete the lateral adjustment of the folding arm 3, and after the adjustment, the driving separation member 5 is used for positioning, and it can be switched to the special-shaped gear 205 for connection and transmission, so as to realize the adjustment of the rotation angle of the folding arm 3, and the overall structure runs stably; wherein, in the circumferential direction of the support plate 204, there are multiple small holes equal to the number of cylindrical rods, and the small holes are sleeved with the cylindrical rods for sliding displacement.

[0048] A preferred embodiment, in combination with Figure 3-7 As shown, the driving separation member 5 includes a driving shaft 501, a sleeve 502, a driven wheel 503 and a power member 6; the driving shafts 501 are arranged in pairs, the middle part is connected to the suspension frame 1 as a rotating shaft, and is arranged on the inner side of the support shaft 202, one end of the driving shaft 501 is installed with a return spring 504, and the other end is fixed with a docking plate 505, the docking plate 505 is made of wear-resistant material, and after contacting with the surface of the driven wheel 503, a large friction force is generated, and a brake member 506 is fixed on one side of the docking plate 505 on the driving shaft 501, which is used to position the driving wheel 507 on the sleeve after position adjustment, and the driving wheel 507 is connected to the special-shaped gear 205, so as to achieve the locking of the support shaft 202, and the sleeve A lug 508 is installed at the end of 502, and the lug 508 is fixed to the suspension frame 1 and forms a support for the sliding sleeve 502; the driven wheel 503 is connected to the side shaft of the suspension frame 1 and is arranged concentrically with respect to the sliding sleeve 502. After displacement, the docking plate 505 contacts the side of the driven wheel 503, and the friction force is used to realize power transmission, and the power piece 6 is connected to the driving shaft 501 to control the displacement adjustment of the driving shaft 501; wherein, the driving shaft 501 is installed with a gear connected to the power piece 6 near the reset spring 504, and the connection method of the gear and the driving shaft 501 adopts a spline connection form, so that the driving shaft 501 can be axially displaced and maintain a transmission connection with the power piece 6;

[0049] Under normal conditions, the output part of the power member 6 is connected to the special-shaped gear 205 through the driving wheel 507. Under single cable measurement, the angle can be adjusted at any time to achieve docking measurement with the cable. The power member 6 drives the driving shaft 501 to move, and the power of the driving shaft 501 is separated from the connection with the sliding sleeve 502. At the same time, the docking plate 505 contacts the side of the driven wheel 503 to form power transmission. The connection between the driven wheel 503 and the gear at the end of the transverse shaft 201 is used to drive the transverse shaft 201 to rotate, thereby completing the transverse separation between the two folding arms 3. At the same time, during the transverse transmission process, the brake member 506 contacts the driving wheel 507 to achieve locking positioning of the support shaft 202 in the circumferential direction.

[0050] A preferred embodiment, in combination with Figure 3 As shown, in order to prevent the threaded sleeve inside the support plate 204 from rotating synchronously with the transverse shaft 201 when the support plate 204 is driven for lateral adjustment, a small electromagnetic push rod can be installed on one side of the support plate 204. A circular arc-shaped friction plate is fixed on the electromagnetic push rod. The friction plate contacts the outer circle of the threaded sleeve to achieve positioning. When the angle adjustment is required, the circumferential positioning is released, and the circumferential rotation of the folding arm 3 will not be interfered with.

[0051] A preferred embodiment, combined with Figure 4 and Figure 6 As shown, the power component 6 includes a first motor 601 and a second motor 602; a diamond-shaped power wheel 603 is keyed on the first motor 601, and the driving shaft 501 maintains contact with the power wheel 603 under the elastic force of the return spring 504; the second motor 602 is connected to the gear on the driving shaft 501 through a gear to realize power transmission, and the power wheel 603 is driven to rotate by the first motor 601 to realize the displacement control of the driving shaft 501, and the diamond-shaped structural design can reduce the contact area with the end of the driving shaft 501, thereby reducing the impact on the transmission.

[0052] A preferred embodiment, combined with Figure 3 As shown, the arrangement of components such as the driving shaft 501, the power member 6, and the transverse shaft 201 all adopts a symmetrical structure arrangement, which can effectively ensure the overall balance, the layout is reasonable, and the stability is effectively improved.

[0053] A preferred embodiment, in combination with Figure 4 and Figure 5As shown, the brake member 506 includes a bracket 5061 and a rack 5062; the bracket 5061 is L-shaped, fixed on the driving shaft 501 at the top and fixedly connected to one side of the rack 5062 at the bottom, and symmetrically fixed on the rack 5062 are positioning columns 5063 that are slidably connected to the support ears 508 to improve the stability of displacement. When the driving shaft 501 is adjusted for axial displacement, the driving shaft 501 is disengaged from the sliding sleeve 502, and then the rack 5062 is in contact with the driving wheel 507 to achieve positioning braking, and as the displacement continues, the docking plate 505 comes into contact with the driven wheel 503 to complete the power switching, thereby preventing the folding arm 3 from rotating when the folding arm 3 is adjusted laterally, thereby affecting the overall stability.

[0054] A preferred embodiment, in combination with Figure 4-7 As shown, two guide columns are welded on the stop plate 5031, and the guide columns are slidably connected to the side wall of the suspension frame 1. At the same time, a support spring is installed between the stop plate 5031 and the side wall of the suspension frame 1. The elastic force of the support spring pushes the stop plate 5031 to contact the other side of the driven wheel 503 to achieve positioning braking and avoid misrotation. At the same time, a plurality of through holes 5032 are provided on the driven wheel 503; a plurality of trigger columns 5051 corresponding to the positions of the through holes 5032 are installed around the outer circle of the docking plate 505. Before the driving shaft 501 and the driven wheel 503 are in contact with each other for transmission, the trigger column 5051 is used to first push the stop plate 5031 out of contact with the driven wheel 503 to avoid affecting the transmission and achieve a better transmission effect.

[0055] A preferred embodiment, in combination with Figure 7 As shown, the end of the driving shaft 501 has a plurality of guide bars 5011 along the circumferential direction. The cross-section of the guide bar 5011 is rectangular and has a length that is less than the displacement distance before the rack 5062 contacts the driving wheel 507. The inner wall of the sliding sleeve 502 is provided with a guide groove 5021 connected to the guide bar 5011, and the transmission contact is achieved by connecting the two.

[0056] A preferred embodiment, in combination with Figure 8-11As shown, the folding arm 3 includes a base 301, an arm body 302, a measuring rod 303 and a winding member 304; the base 301 is fixedly connected to the support plate 204, an extrusion cylinder 305 connected to the arm body 302 is installed on the base 301, and there is liquid inside the extrusion cylinder 305. One end of the arm body 302 is connected to the bottom of the base 301 by a rotating shaft, and two movable cylinders 306 connected to the extrusion cylinder 305 are symmetrically installed on one side of the arm body 302. The movable cylinder 306 and the extrusion cylinder 305 are connected by pipelines. At the same time, an angle adjustment member 7 is installed at the movable cylinder 306, and the angle adjustment member 7 is driven to rotate by thrust; the measuring rod 303 is slidably connected to the arm body 302, one end of which is connected to the angle adjustment member 7, and the other end is equipped with a claw for measuring the cable, and the winding member 304 is fixed to the side wall of the suspension frame 1, and is connected to the arm body 302 through a rope body, so as to drive the arm body 302 to rotate and fold;

[0057] In actual use, multiple cables often have a fixed spacing between them according to needs. Therefore, when it is necessary to measure two cables at the same time, the folding arm 3 only needs to be rotated vertically downward and the two bases 301 are driven to move to the outermost position. At this time, the rope body is basically below the winding member 304. Then the winding member 304 is started to pull the arm body 302 to rotate around the base 301. At the same time, during the rotation process, the extrusion cylinder 305 is compressed, and the internal liquid is transported to the movable cylinder 306. The movable cylinder 306 pushes the angle adjustment member 7 to do work, driving the measuring rod 303 to rotate 90 degrees to achieve synchronous adjustment. Subsequently, according to the spacing of the cables, the lateral positions of the two measuring rods 303 are adjusted separately, and the measurement of the two cables can be completed at the same time. The detection of the two cables can be completed by relying on one hovering, which greatly improves the detection efficiency, avoids the operational difficulties caused by frequent adjustments, saves adjustment time, and when detecting a single cable, the two arms 302 can be separated and measured at a distance from each other at the same time to improve the accuracy of the detection.

[0058] A preferred embodiment, in combination with Fig. 9 and Fig.10As shown, the angle adjustment member 7 includes an adjusting rod 701 and a rotating sleeve 702; the adjusting rod 701 is fixedly installed at the middle position of the two movable cylinders 306 and connected to the arm body 302; the middle part of the rotating sleeve 702 is sleeved with the arm body 302, one end is connected to the adjusting rod 701 to form a threaded connection, and the other end is provided with a sliding frame 703 connected to the measuring rod 303, wherein the adjusting rod 701 has a larger pitch, the inner wall of the rotating sleeve 702 has a corresponding thread, and the end of the outer wall of the adjusting rod 701 has a structural form with the guide strip 5011, and the sliding frame 703 has a structural form of a guide groove 5021, forming a sliding connection and maintaining the transmission of torque, and the adjusting rod 701 is triggered by the movable cylinder 306 to rotate, driving the measuring rod 303 to realize the rotation of the angle, and the cooperation of the extrusion cylinder 305 and the rope body, and the stroke and tension can also realize the positioning of the arm body 302 to maintain the stability after adjustment.

[0059] A preferred embodiment, combined with Figure 12-17 As shown, the balance assembly 4 includes a base 8 and a counterweight cylinder 9; the base 8 is connected to the right side of the suspension frame 1, and a fixed sleeve 801 is symmetrically arranged on the base 8. The fixed sleeve 801 is circular and has a hollow structure inside. A plurality of connecting holes 802 connected to the inside are processed on the fixed sleeve 801, and the connecting holes 802 have a certain length. A transmission member 803 for driving the fixed sleeve 801 to move is arranged in the middle of the base 8, and a rotatable liquid distribution pipe 10 is arranged inside the fixed sleeve 801; a plurality of counterweight cylinders 9 are installed at the connecting holes 802, and a volumetric cavity 901 is arranged inside the counterweight cylinder 9. A driving rod 902 connected to the base 8 is arranged above the counterweight cylinder 9, and the counterweight cylinder 9 is driven to rotate by the driving rod 902 to realize rotation adjustment;

[0060] When in use, the whole is driven to extend outward through the transmission part 803, and the corresponding liquid weight can effectively balance the force of the folding arm 3 in the extended state. In a windy environment, fine-tuning can be performed by controlling the liquid difference between the counterweight cylinders 9 on both sides. At the same time, the counterweight cylinder 9 can be driven to rotate to achieve a one-side weight imbalance and generate a certain counter-torque. In conjunction with the adjustment of the drone, it can cope with the problem of gravity imbalance caused by wind, achieve the effect of auxiliary balance, and improve the stability of the drone during hovering or adjustment.

[0061] A preferred embodiment, combined with Fig.17 As shown, a sealing disk is installed inside the counterweight cylinder 9, and a force spring is installed on the outside of the sealing disk. At the same time, a vent hole is opened at the end of the counterweight cylinder 9. By increasing the liquid supply pressure, the sealing disk is pushed to compress the force spring, thereby increasing the internal storage space. The weight can be counterbalanced as needed to improve practicality.

[0062] A preferred embodiment, combined with Fig.16As shown, the liquid distribution pipe 10 has a liquid supply cavity corresponding to the number of the communicating holes 802, and each liquid supply cavity is equipped with a liquid supply pipe connected to the outside. By controlling different liquid supply pipes to transport liquid, liquid can be supplied to the counterweight cylinder 9 at different positions. Fig.15 As shown, the liquid distribution pipe 10 is also divided into two spaces, left and right. The left part is the location of the liquid supply chamber, and the right part is the drainage space. By driving the liquid distribution pipe 10 to rotate to a specified angle, it is connected with the counterweight cylinder 9 to achieve the purpose of drainage.

[0063] A preferred embodiment, in combination with Fig.13 and Fig.14 As shown, rails connected to the fixing sleeve 801 are processed on both sides of the transmission member 803 to position the fixing sleeve 801 and improve the stability of the sliding guide. Specific implementation method 2

[0065] Regarding the second structural form at the folding arm 3;

[0066] Combination Fig. 9 and Fig.11 As shown, a control motor is installed at the connection between the arm body 302 and the base 301, or manual adjustment is also adopted to directly fold 90 degrees, instead of the liquid trigger form mentioned above, which can also meet the needs, but lacks a certain degree of controllability and cannot achieve adjustment in the mounted state; among them, for the manual adjustment method, such as the connection between the arm body 302 and the base 301, rectangular grooves are opened at corresponding angles at the rotating shaft and the through holes of the two, and rectangular bars are inserted into the two rectangular grooves under normal circumstances to keep the arm body 302 in an extended state. When folding is required, the rectangular bar is pulled out, and the docking position of the rectangular groove is adjusted, and it can be inserted again. The control motor method can achieve automatic adjustment to meet the needs of high-altitude control. Specific implementation method three

[0068] Combination Fig.10 and Fig.13 As shown, the driving structure of the measuring rod 303 and the structure of the transmission part 803 are both driven by a screw, specifically including a screw connected to a motor, and a displacement frame, the middle part of the displacement frame is threadedly connected to the screw, and the two sides are slidingly connected to the components. The screw rotates to push the displacement frame to move, thereby realizing the displacement of the measuring rod 303 and the fixed sleeve 801. Specific implementation method four

[0070] Combination Figure 1As shown, the liquid supply part of the balancing component 4 includes a liquid storage tank and a distribution frame; the liquid storage tank is fixed at the middle of the suspension frame 1, and has liquid inside. At the same time, water pumps are installed at the liquid outlet and the liquid return port. The distribution frame is fixed below the liquid storage tank, and multiple solenoid valves are installed on the distribution frame, which are connected to the liquid supply cavity in the distribution pipe through pipelines to achieve separate control. At the same time, the distribution frame also has a reflux solenoid valve connected to the discharge space, and is connected to the liquid storage tank through pipelines.

[0071] The present invention can also be applied to cable connection operations by changing the clamp-shaped measuring part at the end of the measuring rod 303 into a clamping structure, and after clamping, the cable can be towed by a drone to reduce the difficulty of connection.

[0072] Combination Figure 8 As shown, the structure of the winding member 304 includes a fixed shaft and a reel. The fixed shaft is connected to the suspension frame 1, and the reel is sleeved on the fixed shaft. The reel has a coil spring structure connected to the fixed shaft. When the position of the folding arm changes, the rope body can be pulled to extend. At the same time, the reel also has a control motor that can drive the entire body in reverse to perform a winding operation, thereby pulling the rope body.

[0073] Experimental Example 1

[0074] Test process: The drone is equipped with a current detection system to perform flight hovering detection on a wire with an area of ​​240 square millimeters, a voltage of 220V, and a current of 300-500mA.

[0075] During the process, the current was adjusted three times, each time for 1 minute, and the clamp meter and current count values ​​were recorded and compared. The accuracy requirement (23℃±5℃, below 80%RH) is: 0mA~5A: ±1.5%rdg+5dgt.

[0076] The technical requirements of parameters are as follows:

[0077] Capable of high-precision measurement of line current during insulator breakdown test;

[0078] (1) Mounting method: Mounting on DJI M300 (M350) series drones;

[0079] (2) Test method: clamp closure;

[0080] (3) Transmission mode: wireless transmission; transmission distance ≥ 25 meters, real-time viewing of test data, convenient and fast to use;

[0081] (4) Sampling rate ≥ 2 times / second;

[0082] (5) Measurement range: 0mA ~ 5A (50 / 60Hz automatic);

[0083] (6) Test accuracy (23℃±5℃, below 80%RH): 0mA~5A: ±1.5%rdg+5dgt;

[0084] The test results show that the current error is 1% and the fluctuation range is 3%, which meets the accuracy requirements. The data is as follows:

[0085]

[0086] First time: Ammeter reading: 366mA, clamp meter reading: 362mA, error -1.09%;

[0087] Second time: Ammeter reading: 452mA, clamp meter reading: 450mA, error -0.44%;

[0088] Third time: Ammeter reading: 504mA, clamp meter reading: 502mA, error -0.40%.

[0089] It can be seen from the above experiments that, when the drone is suspended, multiple measurements of the cable can be carried out by relying on this device, which can well meet the actual detection needs. In actual operation, when the drone is in a hovering state, the fine-tuning control of the device itself can greatly reduce the difficulty of operation and facilitate docking operations.

[0090] For the clamp ammeter at the end of the measuring rod, use ETCR9000A or ETCR9000B, and add a small motor to control the opening and closing of the jaws. The measuring range is AC 0mA ~ 1200A.

[0091] Test accuracy, 23℃±5℃, below 80%RH:

[0092] 0mA~99.9A:±1%rdg±5dgt;

[0093] 100A~599A:±1.5%rdg±5dgt;

[0094] 600A~1200A:±2%rdg±5dgt;

[0095] Jaw size: Ф48mm.

[0096] To sum up, the present invention relies on drone suspension to replace traditional manual climbing operations, which can meet the detection needs of high-altitude and low-altitude cables, while avoiding operational risks. In the hovering state, by adjusting the transmission component 2 and the folding arm 3, the docking measurement with the cable can be quickly completed, thereby shortening the adjustment time and improving the detection efficiency. The detection of two cables can be completed at one time. When measuring multiple cables, the intermediate adjustment time is further shortened, the detection efficiency is improved, the detection operations in a large range of areas are met, and the work difficulty of maintenance personnel is reduced.

[0097] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modification, equivalent substitution, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision flying and hovering UAV mounting current detection device, characterized in that: include: A drone (11), wherein a suspension frame (1) is mounted below the drone (11); A suspension frame (1), wherein a transmission assembly (2) is provided on one side of the suspension frame (1), and two folding arms (3) are symmetrically provided on the transmission assembly (2), wherein the transmission assembly (2) drives the folding arms (3) to perform a lateral movement, a rotation or a folding action, and is used to adjust the end position of the folding arms (3) to achieve line docking measurement, and an adjustable balancing assembly (4) is provided on the other side of the suspension frame (1); A receiving end (12), wherein the receiving end (12) is used to display the current value detected at the end of the folding arm (3).

2. A high-precision flying and hovering UAV mounting current detection device according to claim 1, characterized in that: The transmission assembly (2) comprises a transverse shaft (201), a support shaft (202) and a drive separation member (5); the two sides of the transverse shaft (201) are respectively connected to the suspension frame (1) as a rotating shaft, and the middle part of the transverse shaft (201) has a threaded section (203) with opposite thread rotation directions at both ends; two support plates (204) are symmetrically arranged on the support shaft (202) and are respectively connected to the threaded sections (203), and special-shaped gears (205) connected to the suspension frame (1) are symmetrically arranged at both ends of the support shaft (202), and the special-shaped gears (205) and both ends of the transverse shaft (201) are connected to the drive separation member (5).

3. A high-precision flying and hovering UAV mounting current detection device according to claim 2, characterized in that: The driving separation member (5) comprises a driving shaft (501), a sliding sleeve (502), a driven wheel (503) and a power member (6); the driving shaft (501) is arranged in pairs, the middle part is connected to the suspension frame (1) by a rotating shaft, one end is provided with a return spring (504), and the other end is provided with a docking plate (505), and one side of the docking plate (505) is provided with a brake member (506) on the driving shaft (501); the sliding sleeve (502) is provided with a driving wheel (507) connected to the special-shaped gear (205), and the end of the sliding sleeve (502) is provided with a support ear (508) connected to the suspension frame (1); the driven wheel (503) is connected to the side rotating shaft of the suspension frame (1) and is connected to the end of the transverse axis (201); the power member (6) is connected to the driving shaft (501).

4. The high-precision flying and hovering UAV mounting current detection device according to claim 3 is characterized in that: The power member (6) comprises a first motor (601) and a second motor (602); the first motor (601) is provided with a diamond-shaped power wheel (603) in contact with the end of the driving shaft (501); the second motor (602) is connected to the middle of the driving shaft (501) via a gear.

5. The high-precision flying and hovering UAV mounting current detection device according to claim 3 is characterized in that: The brake member (506) comprises a bracket (5061) and a rack (5062); the bracket (5061) is fixed to the driving shaft (501) at the top and connected to one side of the rack (5062) at the bottom; the rack (5062) is symmetrically provided with positioning posts (5063) slidably connected to the support ears (508).

6. The high-precision flying and hovering UAV mounting current detection device according to claim 3 is characterized by: The driven wheel (503) is provided with a slidably displaceable stop plate (5031), and the driven wheel (503) is provided with a plurality of through holes (5032); and a plurality of triggering posts (5051) are provided around the outer circle of the docking plate (505).

7. The high-precision flying and hovering UAV mounting current detection device according to claim 3 is characterized by: A guide strip (5011) is provided at the end of the driving shaft (501); and a guide groove (5021) connected to the guide strip (5011) is provided on the inner wall of the sliding sleeve (502).

8. The high-precision flying and hovering UAV mounting current detection device according to claim 1 is characterized in that: The folding arm (3) comprises a base (301), an arm body (302), a measuring rod (303) and a winding piece (304); the base (301) is connected to the transmission assembly (2), and an extrusion cylinder (305) connected to the arm body (302) is provided on the base (301); one end of the arm body (302) is connected to the base (301) via a rotating shaft, and one side of the arm body (302) is provided with a movable cylinder (306) connected to the extrusion cylinder (305), and an angle adjustment piece (7) is provided at the movable cylinder (306); the measuring rod (303) is slidably connected to the arm body (302), and one end is connected to the angle adjustment piece (7); the winding piece (304) is fixed to the side wall of the suspension frame (1), and is connected to the arm body (302) via a rope body.

9. The high-precision flying and hovering UAV mounting current detection device according to claim 8, characterized in that: The angle adjustment member (7) comprises an adjustment rod (701) and a rotating sleeve (702); the adjustment rod (701) is fixed to the middle of two movable cylinders (306); the middle of the rotating sleeve (702) is sleeved with the arm body (302), one end of the rotating sleeve (702) is connected to the adjustment rod (701), and the other end is provided with a sliding frame (703) connected to the measuring rod (303).

10. The high-precision flying and hovering UAV mounting current detection device according to claim 1, characterized in that: The balancing assembly (4) comprises a base (8) and a counterweight cylinder (9); the base (8) is connected to the right side of the suspension frame (1); a fixing sleeve (801) is symmetrically arranged on the base (8); a plurality of connecting holes (802) are arranged on the fixing sleeve (801); a transmission member (803) for driving the fixing sleeve (801) to move is arranged in the middle of the base (8); a rotatable liquid distribution pipe (10) is arranged inside the fixing sleeve (801); a plurality of counterweight cylinders (9) are installed at the connecting holes (802); a volume-adjustable cavity (901) is arranged inside the counterweight cylinder (9); a driving rod (902) connected to the base (8) is arranged above the counterweight cylinder (9).

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