Unmanned aerial vehicle weight center-of-gravity measuring device and use method thereof

Abstract

The invention relates to the technical field of unmanned aerial vehicle weight center-of-gravity measurement, and discloses an unmanned aerial vehicle weight center-of-gravity measurement device and a use method thereof.The unmanned aerial vehicle weight center-of-gravity measurement device comprises a bottom plate, the bottom of the bottom plate is fixedly connected with an extension rod, the bottom of the extension rod is fixedly connected with supporting legs, and the surface of the bottom plate is provided with a rectangular hole; the surface of the bottom plate is fixedly connected with a fixing frame, and the measuring component comprises a cross frame. The measuring part is arranged at the top of the bottom plate, the measuring part is used for measuring the gravity center of the unmanned aerial vehicle, the protective part is arranged at the top of the measuring plate, the unmanned aerial vehicle is limited through the protective part, and the situation that the unmanned aerial vehicle slides off when the measuring part inclines due to the weight of the unmanned aerial vehicle, and consequently the unmanned aerial vehicle inclines during measurement is avoided. An adsorption part is arranged at the top of the measuring plate, and the unmanned aerial vehicle is adsorbed and limited through the adsorption part, so that the unmanned aerial vehicle is prevented from being separated from the measuring plate when the measuring plate inclines.

Description

Technical Field

[0001] The present invention relates to the technical field of drone weight and center of gravity measurement, and in particular to a drone weight and center of gravity measurement device and a use method thereof. Background Art

[0002] The position of the center of gravity of a drone is an important parameter, which is of great significance to the safety of the drone. The change of the center of gravity will affect the stability and operability of the drone. Moreover, as drones and their equipment become more and more sophisticated, the measurement of the center of gravity position becomes very important after the development and production of drones.

[0003] Since the drone is not symmetrical in every direction along the body axis and the internal mass distribution is not very uniform, it is necessary to use a drone weight and center of gravity measuring device to measure the center of gravity of the drone. When the existing drone center of gravity measurement is used to measure the drone, the measuring device is tilted due to the influence of the drone's weight, which can easily cause the drone to slide off the measuring device and be damaged. Summary of the invention

[0004] The object of the present invention is to provide a device for measuring the weight and center of gravity of a drone and a method for using the same to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a device for measuring the weight and center of gravity of a drone and a method for using the device, comprising a bottom plate, an extension rod fixedly connected to the bottom of the bottom plate, a leg fixedly connected to the bottom of the extension rod, a rectangular hole opened on the surface of the bottom plate, a fixing frame fixedly connected to the surface of the bottom plate, and further comprising:

[0007] A measuring component, wherein the measuring component comprises a cross, the end of the cross is fixedly connected to the inner wall of the rectangular hole, the inner wall of the cross is fixedly connected to a support rod, the top of the support rod is fixedly connected to a round hole rod, the inner wall of the round hole rod is rotatably connected to a rotating rod, the top of the rotating rod is fixedly connected to a mandrel, the top of the mandrel is fixedly connected to a measuring plate, a limiting hole is provided on the surface of the measuring plate, and a contact plate is rotatably connected to the inner wall of the limiting hole;

[0008] A protective component, the protective component comprising an electric push rod, the surface of the electric push rod is fixedly connected to the inner wall of the fixing frame, the end of the electric push rod is fixedly connected to a push plate, and one end of the push plate close to the electric push rod is fixedly connected to an elastic rod;

[0009] The adsorption component comprises a circular hole, the circular hole is opened on the top of the measuring plate, the bottom of the inner wall of the circular hole is fixedly connected with an elastic frame, the top of the elastic frame is fixedly connected with a circular hole plate, the inner wall of the circular hole plate is rotatably connected with a movable ball, and the top of the movable ball is fixedly connected with a suction cup.

[0010] Furthermore, the number of the extension rods is four, and the four extension rods are arranged in a circle with the bottom plate as the center. The cross is arranged at the inner center of the rectangular hole. The number of the fixing frames is two, and the two fixing frames are symmetrically arranged with the bottom plate as the center. The top of the fixing frame extends to above the measuring plate.

[0011] Further, the measuring component includes a connecting block, the top of the connecting block is fixedly connected to the bottom of the measuring plate, a movable frame is sleeved inside the connecting block, a measuring rod is fixedly connected to the bottom of the movable frame, a sliding hole frame is fixedly connected to the surface of the cross, a spring is fixedly connected to the top of the sliding hole frame, the top of the spring is fixedly connected to the measuring rod, a spring is fixedly connected to the lower surface of the movable frame, and an end of the spring away from the movable frame is fixedly connected to the surface of the connecting block;

[0012] A positioning frame is fixedly connected to the surface of the support rod, an elastic sheet is fixedly connected to the upper surface of the positioning frame, an end of the elastic sheet away from the positioning frame is fixedly connected to the bottom of the contact plate, a cylindrical rod is fixedly connected to the center of the elastic sheet, a center plate is fixedly connected to the surface of the cylindrical rod, and the top of the center plate is fixedly connected to the bottom of the contact plate.

[0013] Furthermore, the elastic sheet is symmetrically arranged with the positioning frame as the center, the top of the center plate is arranged at the center line of the contact plate, the lower surface of the measuring rod is slidably connected to the inner wall of the sliding hole frame, and two elastic sheets are arranged on the surface of the movable frame, and the two elastic sheets are symmetrically arranged with the connecting block as the center, the end of the cylindrical rod passes through the elastic sheet and extends to the outer end of the elastic sheet, and the bottom of the support rod extends to the bottom of the cross.

[0014] Further, the protective component comprises a right-angle plate, the lower end of the right-angle plate is fixedly connected to the surface of the bottom plate, the top of the right-angle plate is fixedly connected to a limit frame, the central inner wall of the limit frame is slidably connected to a sliding rod, the end of the sliding rod is fixedly connected to a stabilizing frame, the top of the stabilizing frame is fixedly connected to an inclined panel, and the inclined panel is fixedly connected to the sliding rod through a curved plate;

[0015] One end of the sliding rod away from the stabilizing frame is fixedly connected to the end of the elastic rod, and the bottom of the inclined plate is in contact with the top of the measuring plate.

[0016] Furthermore, the surface of the sliding rod is slidably connected to the inner wall of the limit frame, the telescopic end of the electric push rod is slidably connected to the inner wall of the limit frame, the number of the inclined panels is two, the two inclined panels are symmetrically arranged with the measuring plate as the center, and the end of the sliding rod extends to the outer end of the limit frame.

[0017] Furthermore, the adsorption component includes a hose, the end of the hose is connected to the suction cup, the end of the hose away from the suction cup is connected to the air cylinder rod, the end of the air cylinder rod away from the hose is fixedly connected to a bent plate, the end of the bent plate away from the air cylinder rod is fixedly connected to the surface of the right-angle plate, and the inside of the air cylinder rod is slidably connected to a gas pressure plate;

[0018] One end of the air pressure plate close to the hose is fixedly connected with a synchronization frame, one end of the synchronization frame away from the air pressure plate is fixedly connected to the bottom of the sliding rod, and a storage groove is provided on the top of the measuring plate.

[0019] Furthermore, one end of the synchronous frame away from the air pressure plate passes through the air cylinder rod and extends to the outer end of the air cylinder rod, and one end of the synchronous frame away from the air cylinder rod passes through the right-angle plate and extends to the outer end of the right-angle plate. The hose contacts the bottom of the inner wall of the storage tank, and the top of the suction cup is fixedly connected with a rubber ring, and the suction cup is arranged above the measuring plate.

[0020] Furthermore, the method for using the device for measuring the weight and center of gravity of a drone comprises the following steps:

[0021] S1: A measuring component is provided on the top of the bottom plate, and the center of gravity of the drone is measured by the measuring component. A protective component is provided on the top of the measuring plate, and the drone is limited by the protective component to prevent the drone from sliding down when the measuring component is tilted due to the weight of the drone.

[0022] S2: When the center of gravity of the UAV tilts, the measuring plate tilts by the rotation connection between the rotating rod and the round hole rod. When the measuring plate tilts, the measuring rod is pushed to slide inside the sliding hole frame through the connecting block, so that the surveyor can measure the center of gravity of the UAV by the moving distance of the measuring rod;

[0023] S3: After the position adjustment of the inclined plate is completed, the drone placed on the top of the measuring plate can be in contact with the top of the measuring plate along the inclined plate, so that the center of the drone can be placed at the top center of the measuring plate, thereby improving the stability of the measuring plate when measuring the center of gravity of the drone;

[0024] S4: The sliding rod pushes the air pressure plate to move inside the cylinder rod through the connection between the synchronous frame and the air pressure plate. The suction force generated by the cylinder rod will enter the inside of the suction cup through the hose, improving the suction effect of the suction cup on the drone, thereby improving the safety of the drone during measurement.

[0025] The present invention has the following beneficial effects:

[0026] The present invention provides a measuring component on the top of the bottom plate, and uses the measuring component to measure the center of gravity of the drone; a protective component is provided on the top of the measuring plate, and the drone is limited by the protective component to prevent the drone from sliding down when the measuring component is tilted due to the weight of the drone, thereby causing the drone to tilt during measurement; an adsorption component is provided on the top of the measuring plate, and the drone is adsorbed and limited by the adsorption component to prevent the drone from being separated from the measuring plate when the measuring plate is tilted, causing the drone to be damaged during measurement.

[0027] The present invention places the drone on the top of the measuring plate and fixes the drone on the top of the measuring plate by an adsorption component. When the center of gravity of the drone tilts, the measuring plate tilts by the rotation connection between the rotating rod and the round hole rod. When the measuring plate tilts, the measuring rod is pushed to slide inside the sliding hole frame by the connecting block, so that the surveyor can measure the center of gravity of the drone by the moving distance of the measuring rod. A contact plate is arranged at the end of the measuring plate. When the drone tilts during measurement, the drone will press the end of the contact plate away from the supporting rod to tilt downward. At this time, the contact plate will press the elastic sheet to deform. When the contact plate is misaligned with the inner wall of the limiting hole, the surveyor can observe the center of gravity position of the drone, thereby improving the convenience of measuring the center of gravity of the drone. The measuring plate can be reset by the elasticity of the spring, and the contact plate can be reset by the elasticity of the elastic sheet, so that the measuring plate and the contact plate can be used back and forth quickly, thereby improving the efficiency of measuring the center of gravity of the drone.

[0028] When the electric push rod of the present invention pulls the push plate to move toward the end of the measuring plate, the push plate utilizes the connection between the elastic rod and the sliding rod to push the top of the measuring plate when the inclined plate moves. After the position adjustment of the inclined plate is completed, the drone is placed at the top of the measuring plate and can contact the top of the measuring plate along the inclined plate, so that the center of the drone can be placed at the top center of the measuring plate, thereby improving the stability of the measuring plate when measuring the center of gravity of the drone. After the drone is placed, the electric push rod pushes the push plate to move toward one end away from the measuring plate, so that the outer end of the measuring plate is measured when the inclined plate moves, thereby avoiding the inclined plate affecting the measurement effect of the measuring plate.

[0029] When the sliding rod of the present invention moves toward the end away from the measuring plate, the sliding rod pushes the air pressure plate to move inside the cylinder rod through the connection between the synchronous frame and the air pressure plate, and the suction force generated by the cylinder rod enters into the interior of the suction cup through the hose, thereby improving the suction effect of the suction cup on the drone, thereby improving the safety of the drone during measurement; when the suction cup is subjected to the weight of the drone, the circular hole plate squeezes the elastic rod to produce deformation, and the circular hole plate moves to the inside of the circular hole so that the drone can contact the top of the measuring plate, and after the suction cup contacts the inner wall of the circular hole, the stability of the suction cup when supporting the drone is improved.

[0030] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the bottom plate structure of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the present invention;

[0035] Figure 4 It is a schematic diagram of the overall structure of the measuring component of the present invention;

[0036] Figure 5 It is a schematic diagram of the support rod structure of the present invention;

[0037] Figure 6 For the present invention Figure 5 A magnified schematic diagram of part A in FIG.

[0038] Figure 7 This is a schematic diagram of the overall structure of the protective component of the present invention;

[0039] Figure 8 It is a schematic diagram of the overall structure of the adsorption component of the present invention;

[0040] Fig. 9 For the present invention Figure 8 A magnified schematic diagram of part B in FIG.

[0041] Fig.10 It is a schematic diagram of the process structure of the present invention.

[0042] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0043] In the figure: 1, bottom plate; 2, fixing frame; 3, rectangular hole; 4, extension rod; 5, leg; 6, measuring component; 7, protection component; 8, adsorption component; 10, measuring plate; 11, limit hole; 12, contact plate; 13, spring; 14, sliding hole frame; 15, support rod; 16, cross; 17, measuring rod; 18, movable frame; 19, connecting block; 20, spring piece; 21, cylindrical rod; 22, positioning frame; 23, elastic sheet; 24, center plate; 25, Round hole rod; 26, rotating rod; 27, push rod; 40, electric push rod; 41, push plate; 42, elastic rod; 43, sliding rod; 44, inclined panel; 45, stabilizing frame; 46, limiting frame; 47, right-angle plate; 48, bending plate; 50, synchronous frame; 51, cylinder rod; 52, air pressure plate; 53, hose; 54, storage tank; 55, bent plate; 56, round hole; 57, round hole plate; 58, elastic frame; 59, movable ball; 60, suction cup; 61, rubber ring. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1-Figure 10 As shown, the present invention is a device for measuring the weight and center of gravity of a drone and a method for using the device, comprising a bottom plate 1, an extension rod 4 is fixedly connected to the bottom of the bottom plate 1, a leg 5 is fixedly connected to the bottom of the extension rod 4, a rectangular hole 3 is opened on the surface of the bottom plate 1, a measuring component 6 is arranged on the top of the bottom plate 1, and the center of gravity of the drone is measured by the measuring component 6, a protective component 7 is arranged on the top of the measuring plate 10, and the drone is limited by the protective component 7 to prevent the drone from sliding when the measuring component 6 is tilted due to the weight of the drone, thereby causing the drone to tilt during measurement, an adsorption component 8 is arranged on the top of the measuring plate 10, and the drone is adsorbed and limited by the adsorption component 8 to prevent the drone from being separated from the measuring plate 10 when the measuring plate 10 is tilted, causing the drone to be damaged during measurement, and a fixing frame 2 is fixedly connected to the surface of the bottom plate 1, and further comprising:

[0046] The measuring component 6 includes a cross 16, the end of the cross 16 is fixedly connected to the inner wall of the rectangular hole 3, the inner wall of the cross 16 is fixedly connected to a support rod 15, the top of the support rod 15 is fixedly connected to a round hole rod 25, the inner wall of the round hole rod 25 is rotatably connected to a rotating rod 26, the top of the rotating rod 26 is fixedly connected to a top rod 27, the top of the top rod 27 is fixedly connected to a measuring plate 10, a limiting hole 11 is provided on the surface of the measuring plate 10, and a contact plate 12 is rotatably connected to the inner wall of the limiting hole 11;

[0047] The protective component 7 includes an electric push rod 40, the surface of the electric push rod 40 is fixedly connected to the inner wall of the fixing frame 2, the end of the electric push rod 40 is fixedly connected to a push plate 41, and one end of the push plate 41 close to the electric push rod 40 is fixedly connected to an elastic rod 42;

[0048] The adsorption component 8 includes a circular hole 56, which is opened on the top of the measuring plate 10. The bottom of the inner wall of the circular hole 56 is fixedly connected to an elastic frame 58, the top of the elastic frame 58 is fixedly connected to a circular hole plate 57, the inner wall of the circular hole plate 57 is rotatably connected to a movable ball 59, and the top of the movable ball 59 is fixedly connected to a suction cup 60.

[0049] There are four extension rods 4, which are arranged in a circle with the base plate 1 as the center. The cross 16 is arranged at the inner center of the rectangular hole 3. There are two fixing frames 2, which are symmetrically arranged with the base plate 1 as the center. The top of the fixing frame 2 extends to the top of the measuring plate 10.

[0050] The measuring component 6 includes a connecting block 19, the top of the connecting block 19 is fixedly connected to the bottom of the measuring plate 10, a movable frame 18 is sleeved inside the connecting block 19, a measuring rod 17 is fixedly connected to the bottom of the movable frame 18, a sliding hole frame 14 is fixedly connected to the surface of the cross 16, a spring 13 is fixedly connected to the top of the sliding hole frame 14, and the top of the spring 13 is fixedly connected to the measuring rod 17. After the drone is placed on the top of the measuring plate 10, the drone is fixed to the top of the measuring plate 10 by the adsorption component 8. When the center of gravity of the drone is tilted, the measuring plate 10 is tilted by the rotation connection between the rotating rod 26 and the round hole rod 25. When the measuring plate 10 is tilted, the measuring rod 17 is pushed to slide inside the sliding hole frame 14 by the connecting block 19, so that the measurement personnel can measure the drone by the moving distance of the measuring rod 17. The center of gravity of the drone is measured. A contact plate 12 is provided at the end of the measuring plate 10. When the drone is tilted during measurement, the drone will squeeze the end of the contact plate 12 away from the support rod 15 and tilt downward. At this time, the contact plate 12 will squeeze the elastic sheet 23 to deform. When the contact plate 12 is misaligned with the inner wall of the limiting hole 11, the measurement personnel can observe the center of gravity position of the drone, thereby improving the convenience of measuring the center of gravity of the drone. The measuring plate 10 can be reset by the elasticity of the spring 13, and the contact plate 12 can be reset by the elasticity of the elastic sheet 23, so that the measuring plate 10 and the contact plate 12 can be used back and forth quickly, thereby improving the efficiency of measuring the center of gravity of the drone. The lower surface of the movable frame 18 is fixedly connected with a spring sheet 20, and the end of the spring sheet 20 away from the movable frame 18 is fixedly connected to the surface of the connecting block 19;

[0051] A positioning frame 22 is fixedly connected to the surface of the support rod 15, an elastic sheet 23 is fixedly connected to the upper surface of the positioning frame 22, an end of the elastic sheet 23 away from the positioning frame 22 is fixedly connected to the bottom of the contact plate 12, a cylindrical rod 21 is fixedly connected to the center of the elastic sheet 23, a center plate 24 is fixedly connected to the surface of the cylindrical rod 21, and the top of the center plate 24 is fixedly connected to the bottom of the contact plate 12.

[0052] The elastic sheet 23 is symmetrically arranged with the positioning frame 22 as the center, the top of the center plate 24 is arranged at the center line of the contact plate 12, the lower surface of the measuring rod 17 is slidably connected to the inner wall of the sliding hole frame 14, and two elastic sheets 20 are arranged on the surface of the movable frame 18, and the two elastic sheets 20 are symmetrically arranged with the connecting block 19 as the center. The end of the cylindrical rod 21 passes through the elastic sheet 23 and extends to the outer end of the elastic sheet 23, and the bottom of the support rod 15 extends to the bottom of the cross 16.

[0053] The protective component 7 includes a right-angle plate 47, the lower end of the right-angle plate 47 is fixedly connected to the surface of the bottom plate 1, the top of the right-angle plate 47 is fixedly connected to the limit frame 46, and the central inner wall of the limit frame 46 is slidably connected with a sliding rod 43. When the electric push rod 40 of the present invention pulls the push plate 41 to move toward the end of the measuring plate 10, the push plate 41 uses the connection between the elastic rod 42 and the sliding rod 43 to push the inclined plate 44 to move the top of the measuring plate 10. After the position adjustment of the inclined plate 44 is completed, the drone placed at the top of the measuring plate 10 can follow the inclined plate 44 and the measuring plate 10. The top contact allows the center of the drone to be placed at the top center of the measuring plate 10, improving the stability of the measuring plate 10 when measuring the center of gravity of the drone. After the drone is placed, the electric push rod 40 pushes the push plate 41 to move to the end away from the measuring plate 10, so that the outer end of the measuring plate 10 is avoided when the inclined plate 44 moves, thereby preventing the inclined plate 44 from affecting the measuring effect of the measuring plate 10. The end of the sliding rod 43 is fixedly connected to the stabilizing frame 45, and the top of the stabilizing frame 45 is fixedly connected to the inclined plate 44. The inclined plate 44 and the sliding rod 43 are fixedly connected by the bending plate 48.

[0054] One end of the sliding rod 43 away from the stabilizing frame 45 is fixedly connected to the end of the elastic rod 42 , and the bottom of the inclined plate 44 contacts the top of the measuring plate 10 .

[0055] The surface of the sliding rod 43 is slidably connected to the inner wall of the limit frame 46, the telescopic end of the electric push rod 40 is slidably connected to the inner wall of the limit frame 46, there are two inclined panels 44, the two inclined panels 44 are symmetrically arranged with the measuring plate 10 as the center, and the end of the sliding rod 43 extends to the outer end of the limit frame 46.

[0056] The adsorption component 8 includes a hose 53, the end of the hose 53 is connected to the suction cup 60, the end of the hose 53 away from the suction cup 60 is connected to the cylinder rod 51, and the end of the cylinder rod 51 away from the hose 53 is fixedly connected to the bent plate 55. When the sliding rod 43 of the present invention moves toward the end away from the measuring plate 10, the sliding rod 43 pushes the air pressure plate 52 to move inside the cylinder rod 51 through the connection between the synchronous frame 50 and the air pressure plate 52, and the suction force generated by the air cylinder rod 51 enters the interior of the suction cup 60 through the hose 53, thereby improving the suction of the suction cup 60 to the non-smoothing effect. The suction effect of the human-machine interface improves the safety of the drone during measurement. When the suction cup 60 is subjected to the weight of the drone, the circular hole plate 57 will squeeze the elastic rod 42 to produce deformation, and the circular hole plate 57 will move to the inside of the circular hole 56 so that the drone can contact the top of the measuring plate 10. After the suction cup 60 contacts the inner wall of the circular hole 56, the stability of the suction cup 60 when supporting the drone is improved. The end of the bent plate 55 away from the cylinder rod 51 is fixedly connected to the surface of the right-angle plate 47, and the inside of the cylinder rod 51 is slidably connected with the air pressure plate 52;

[0057] One end of the air pressure plate 52 close to the hose 53 is fixedly connected to the synchronization frame 50 , and one end of the synchronization frame 50 away from the air pressure plate 52 is fixedly connected to the bottom of the sliding rod 43 . A storage groove 54 is opened on the top of the measuring plate 10 .

[0058] One end of the synchronous frame 50 away from the air pressure plate 52 passes through the air cylinder rod 51 and extends to the outer end of the air cylinder rod 51, and one end of the synchronous frame 50 away from the air cylinder rod 51 passes through the right-angle plate 47 and extends to the outer end of the right-angle plate 47. The hose 53 contacts the bottom of the inner wall of the storage tank 54, and the top of the suction cup 60 is fixedly connected to a rubber ring 61. The suction cup 60 is arranged above the measuring plate 10.

[0059] A device for measuring the weight and center of gravity of a drone, wherein the method for using the device comprises the following steps:

[0060] S1: A measuring component 6 is provided on the top of the bottom plate 1, and the center of gravity of the drone is measured by the measuring component 6. A protective component 7 is provided on the top of the measuring plate 10, and the drone is limited by the protective component 7 to prevent the drone from sliding down when the measuring component 6 is tilted due to the weight of the drone;

[0061] S2: When the center of gravity of the UAV tilts, the measuring plate 10 tilts by the rotation connection between the rotating rod 26 and the round hole rod 25. When the measuring plate 10 tilts, the connecting block 19 pushes the measuring rod 17 to slide inside the sliding hole frame 14, so that the surveyor can measure the center of gravity of the UAV by the moving distance of the measuring rod 17;

[0062] S3: After the position adjustment of the inclined plate 44 is completed, the drone is placed at the top of the measuring plate 10 and can contact the top of the measuring plate 10 along the inclined plate 44, so that the center of the drone can be placed at the top center of the measuring plate 10, thereby improving the stability of the measuring plate 10 when measuring the center of gravity of the drone;

[0063] S4: The sliding rod 43 pushes the air pressure plate 52 to move inside the cylinder rod 51 through the connection between the synchronous frame 50 and the air pressure plate 52. The suction force generated by the cylinder rod 51 will enter the interior of the suction cup 60 through the hose 53, thereby improving the adsorption effect of the suction cup 60 on the drone, thereby improving the safety of the drone during measurement.

[0064] When in use, a measuring component 6 is provided on the top of the bottom plate 1, and the center of gravity of the drone is measured by the measuring component 6. A protective component 7 is provided on the top of the measuring plate 10, and the drone is limited by the protective component 7 to prevent the measuring component 6 from sliding down when the drone is tilted due to the weight of the drone, thereby causing the drone to tilt during measurement. An adsorption component 8 is provided on the top of the measuring plate 10, and the drone is adsorbed and limited by the adsorption component 8 to prevent the drone from being separated from the measuring plate 10 when the measuring plate 10 is tilted, causing the drone to be damaged during measurement. After the drone is placed on the top of the measuring plate 10, the drone is fixed to the top of the measuring plate 10 by the adsorption component 8. When the center of gravity of the drone is tilted, the measurement The plate 10 is tilted by the rotation connection between the rotating rod 26 and the round hole rod 25. When the measuring plate 10 is tilted, the measuring rod 17 is pushed to slide inside the sliding hole frame 14 through the connecting block 19, so that the measurement personnel can measure the center of gravity of the UAV by measuring the moving distance of the rod 17. A contact plate 12 is provided at the end of the measuring plate 10. When the UAV is tilted during measurement, the UAV will squeeze the end of the contact plate 12 away from the support rod 15 and tilt downward. At this time, the contact plate 12 will squeeze the elastic sheet 23 to produce deformation. When the contact plate 12 is misaligned with the inner wall of the limiting hole 11, the measurement personnel can observe the center of gravity position of the UAV, thereby improving the convenience of measuring the center of gravity of the UAV. The measuring plate 10 can be adjusted by the elasticity of the spring 13. When the electric push rod 40 pulls the push plate 41 to move toward the end of the measuring plate 10, the push plate 41 uses the connection between the elastic rod 42 and the sliding rod 43 to push the top of the measuring plate 10 when the inclined plate 44 moves. After the position adjustment of the inclined plate 44 is completed, the drone is placed on the top of the measuring plate 10 and can contact the top of the measuring plate 10 along the inclined plate 44, so that the center of the drone can be placed at the top center of the measuring plate 10, which improves the stability of the measuring plate 10 when measuring the center of gravity of the drone. After the drone is placed, the electric push rod 40 pushes the push plate 41 to move toward the end of the measuring plate 10. The plate 41 moves toward one end away from the measuring plate 10, so that the outer end of the measuring plate 10 is moved when the inclined plate 44 moves, so as to prevent the inclined plate 44 from affecting the measuring effect of the measuring plate 10. When the sliding rod 43 moves toward one end away from the measuring plate 10, the sliding rod 43 pushes the air pressure plate 52 to move inside the cylinder rod 51 through the connection between the synchronous frame 50 and the air pressure plate 52. The suction force generated by the cylinder rod 51 will enter the inside of the suction cup 60 through the hose 53, thereby improving the suction effect of the suction cup 60 on the drone, thereby improving the safety of the drone during measurement. When the suction cup 60 is subjected to the weight of the drone, the circular hole plate 57 will squeeze the elastic rod 42 to produce deformation, and the circular hole plate 57 will move to the inside of the circular hole 56 so that the drone can contact the top of the measuring plate 10.After the suction cup 60 contacts the inner wall of the circular hole 56, the stability of the suction cup 60 when supporting the drone is improved.

[0065] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for measuring the weight and center of gravity of an unmanned aerial vehicle, comprising a base plate (1), the bottom of the base plate (1) being fixedly connected to an extension rod (4), the bottom of the extension rod (4) being fixedly connected to a support leg (5), a rectangular hole (3) being opened on the surface of the base plate (1), and a fixing frame (2) being fixedly connected to the surface of the base plate (1), characterized in that: Also includes: A measuring component (6), the measuring component (6) comprising a cross (16), the end of the cross (16) being fixedly connected to the inner wall of the rectangular hole (3), the inner wall of the cross (16) being fixedly connected to a support rod (15), the top of the support rod (15) being fixedly connected to a round hole rod (25), the inner wall of the round hole rod (25) being rotatably connected to a rotating rod (26), the top of the rotating rod (26) being fixedly connected to a top rod (27), the top of the top rod (27) being fixedly connected to a measuring plate (10), a limiting hole (11) being provided on the surface of the measuring plate (10), the inner wall of the limiting hole (11) being rotatably connected to a contact plate (12); A protective component (7), the protective component (7) comprising an electric push rod (40), the surface of the electric push rod (40) being fixedly connected to the inner wall of the fixing frame (2), the end of the electric push rod (40) being fixedly connected to a push plate (41), and one end of the push plate (41) close to the electric push rod (40) being fixedly connected to an elastic rod (42); The adsorption component (8) comprises a circular hole (56), wherein the circular hole (56) is provided at the top of the measuring plate (10), an elastic frame (58) is fixedly connected to the bottom of the inner wall of the circular hole (56), a circular hole plate (57) is fixedly connected to the top of the elastic frame (58), an active ball (59) is rotatably connected to the inner wall of the circular hole plate (57), and a suction cup (60) is fixedly connected to the top of the active ball (59).

2. The device for measuring the weight and center of gravity of a drone according to claim 1, characterized in that: The number of the extension rods (4) is four, and the four extension rods (4) are arranged around the bottom plate (1) as a central circle. The cross (16) is arranged at the inner center of the rectangular hole (3). The number of the fixing frames (2) is two, and the two fixing frames (2) are symmetrically arranged around the bottom plate (1), and the top of the fixing frames (2) extends to above the measuring plate (10).

3. The device for measuring the weight and center of gravity of a drone according to claim 1, characterized in that: The measuring component (6) comprises a connecting block (19), the top of the connecting block (19) is fixedly connected to the bottom of the measuring plate (10), a movable frame (18) is sleeved inside the connecting block (19), the bottom of the movable frame (18) is fixedly connected to a measuring rod (17), the surface of the cross (16) is fixedly connected to a sliding hole frame (14), the top of the sliding hole frame (14) is fixedly connected to a spring (13), the top of the spring (13) is fixedly connected to the measuring rod (17), the lower surface of the movable frame (18) is fixedly connected to a spring sheet (20), and one end of the spring sheet (20) away from the movable frame (18) is fixedly connected to the surface of the connecting block (19); The surface of the support rod (15) is fixedly connected to a positioning frame (22), the upper surface of the positioning frame (22) is fixedly connected to an elastic sheet (23), one end of the elastic sheet (23) away from the positioning frame (22) is fixedly connected to the bottom of the contact plate (12), the center of the elastic sheet (23) is fixedly connected to a cylindrical rod (21), the surface of the cylindrical rod (21) is fixedly connected to a center plate (24), and the top of the center plate (24) is fixedly connected to the bottom of the contact plate (12).

4. The device for measuring the weight and center of gravity of a drone according to claim 3, characterized in that: The elastic sheet (23) is symmetrically arranged with the positioning frame (22) as the center, the top of the center plate (24) is arranged at the center line of the contact plate (12), the lower surface of the measuring rod (17) is slidably connected to the inner wall of the sliding hole frame (14), the surface of the movable frame (18) is provided with two elastic sheets (20), the two elastic sheets (20) are symmetrically arranged with the connecting block (19) as the center, the end of the cylindrical rod (21) passes through the elastic sheet (23) and extends to the outer end of the elastic sheet (23), and the bottom of the support rod (15) extends to the bottom of the cross (16).

5. The device for measuring the weight and center of gravity of a drone according to claim 1, characterized in that: The protective component (7) comprises a right-angle plate (47), the lower end of the right-angle plate (47) is fixedly connected to the surface of the bottom plate (1), the top of the right-angle plate (47) is fixedly connected to a limiting frame (46), the central inner wall of the limiting frame (46) is slidably connected to a sliding rod (43), the end of the sliding rod (43) is fixedly connected to a stabilizing frame (45), the top of the stabilizing frame (45) is fixedly connected to an inclined panel (44), and the inclined panel (44) is fixedly connected to the sliding rod (43) via a curved plate (48); One end of the sliding rod (43) away from the stabilizing frame (45) is fixedly connected to the end of the elastic rod (42), and the bottom of the inclined plate (44) is in contact with the top of the measuring plate (10).

6. The device for measuring the weight and center of gravity of a drone according to claim 5, characterized in that: The surface of the sliding rod (43) is slidably connected to the inner wall of the limiting frame (46), the telescopic end of the electric push rod (40) is slidably connected to the inner wall of the limiting frame (46), the number of the inclined panels (44) is two, the two inclined panels (44) are symmetrically arranged with the measuring plate (10) as the center, and the end of the sliding rod (43) extends to the outer end of the limiting frame (46).

7. The device for measuring the weight and center of gravity of a drone according to claim 1, characterized in that: The adsorption component (8) comprises a hose (53), an end of the hose (53) is connected to the suction cup (60), one end of the hose (53) away from the suction cup (60) is connected to a cylinder rod (51), one end of the cylinder rod (51) away from the hose (53) is fixedly connected to a bent plate (55), one end of the bent plate (55) away from the cylinder rod (51) is fixedly connected to the surface of the right-angle plate (47), and the inside of the cylinder rod (51) is slidably connected to a gas pressure plate (52); One end of the air pressure plate (52) close to the hose (53) is fixedly connected to a synchronization frame (50), and one end of the synchronization frame (50) away from the air pressure plate (52) is fixedly connected to the bottom of the sliding rod (43), and a storage groove (54) is opened on the top of the measuring plate (10).

8. The device for measuring the weight and center of gravity of a drone according to claim 7, characterized in that: One end of the synchronous frame (50) away from the air pressure plate (52) passes through the cylinder rod (51) and extends to the outer end of the cylinder rod (51); one end of the synchronous frame (50) away from the cylinder rod (51) passes through the right angle plate (47) and extends to the outer end of the right angle plate (47); the hose (53) contacts the bottom of the inner wall of the storage tank (54); the top of the suction cup (60) is fixedly connected with a rubber ring (61); and the suction cup (60) is arranged above the measuring plate (10).

9. A device for measuring the weight and center of gravity of a drone according to any one of claims 1 to 8, characterized in that: The method of use comprises the following steps: S1: A measuring component (6) is arranged on the top of the bottom plate (1), and the center of gravity of the drone is measured by using the measuring component (6). A protective component (7) is arranged on the top of the measuring plate (10), and the drone is limited by the protective component (7) to prevent the drone from sliding down when the measuring component (6) is tilted due to the weight of the drone. S2: When the center of gravity of the drone is tilted, the measuring plate (10) is tilted by the rotation connection between the rotating rod (26) and the round hole rod (25). When the measuring plate (10) is tilted, the measuring rod (17) is pushed to slide inside the sliding hole frame (14) through the connecting block (19), so that the measurement personnel can measure the center of gravity of the drone by the moving distance of the measuring rod (17); S3: After the position adjustment of the inclined plate (44) is completed, the drone is placed on the top of the measuring plate (10) and can contact the top of the measuring plate (10) along the inclined plate (44), so that the center of the drone can be placed at the top center of the measuring plate (10), thereby improving the stability of the measuring plate (10) when measuring the center of gravity of the drone; S4: The sliding rod (43) pushes the air pressure plate (52) to move inside the cylinder rod (51) through the connection between the synchronous frame (50) and the air pressure plate (52). The suction force generated by the cylinder rod (51) enters the inside of the suction cup (60) through the hose (53), thereby improving the suction effect of the suction cup (60) on the drone, thereby improving the safety of the drone during measurement.

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