Unmanned aerial vehicle surveying instrument on-site evidence obtaining device and use method thereof

Abstract

The invention relates to the technical field of unmanned aerial vehicle surveying and mapping, and discloses an unmanned aerial vehicle surveying instrument on-site evidence obtaining device and a using method thereof.The unmanned aerial vehicle surveying instrument on-site evidence obtaining device comprises an unmanned aerial vehicle, a fixing plate is fixedly connected to the bottom of the unmanned aerial vehicle, and a fixing rod is fixedly connected to the bottom of the fixing plate; an electric telescopic rod drives a first hydraulic telescopic pipe to extend, the first hydraulic telescopic pipe is forced to extract liquid in a hydraulic box, the hydraulic box sucks a solution in a second hydraulic telescopic pipe, the second hydraulic telescopic pipe is forced to contract, a plurality of sliding blocks drive corresponding rotating arc rods to contract through L-shaped rods, and the clamping procedure of the equipment is completed through movement of the rotating arc rods; in the process, due to the irregular shape of the materials, part of the rotating arc rods make contact with the outer walls of the materials firstly, the other rotating arc rods are pushed by the electric telescopic rods to move, it is guaranteed that the multiple rotating arc rods are tightly attached to the outer walls of the materials in the clamping process, and the grabbing force during evidence obtaining is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicle surveying and mapping equipment, and in particular to an on-site evidence collection device for an unmanned aerial vehicle surveying and mapping instrument and a method for using the device. Background Art

[0002] UAV aerial survey is a powerful supplement to traditional aerial photogrammetry. It is flexible, efficient, precise, low-cost, widely applicable, and has a short production cycle. It has obvious advantages in the rapid acquisition of high-resolution images in small areas and areas with difficult flight. With the development of UAV and digital camera technology, digital aerial photography technology based on UAV platforms has shown its unique advantages. The combination of UAV and aerial photogrammetry has made "UAV digital low-altitude remote sensing" a new development direction in the field of aerial remote sensing.

[0003] Among them, when the UAV collects solids through the evidence collection device, the solid shape is limited, the center of gravity of the object is offset and other factors affect the grasping efficiency of the evidence collection device, and even the grasping is not firm. After taking off, the object falls and causes the sample to break. To solve the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an on-site evidence collection device for a drone surveying instrument, comprising a drone, a fixed plate is fixedly connected to the bottom of the drone, a fixed rod is fixedly connected to the bottom of the fixed plate, a ball is rotatably connected to one end of the fixed rod away from the fixed plate, a mounting plate is fixedly connected to the outer wall of the ball, a hydraulic box is fixedly connected to the bottom of the mounting plate, an electric telescopic rod is fixedly connected to the top of the mounting plate, a hydraulic telescopic tube 1 is fixedly connected to the power supply of the electric telescopic rod away from the mounting plate, the other end of the hydraulic telescopic tube 1 is connected to the outer wall of the hydraulic box, a clamping assembly is fixedly connected to the bottom of the hydraulic box, and an adjustment assembly is fixedly connected to the bottom of the fixed plate;

[0005] The collecting mechanism includes six slides provided at the bottom of the mounting plate, six hydraulic telescopic tubes are connected through the side wall of the hydraulic box, a slider is fixedly connected to one end of the six hydraulic telescopic tubes away from the hydraulic box, the outer wall of the slider is slidably connected to the inner wall of the slide, an L-shaped rod is fixedly connected to the bottom of the slider, a rotating arc rod is rotatably connected to one end of the L-shaped rod away from the slider, a pressure plate is fixedly connected to the side wall of the rotating arc rod, and a reset spring is fixedly connected to the side wall of the pressure plate. In view of the different shapes of the evidence objects, a collecting mechanism is arranged inside the equipment. Before use, the drone is sent to the top of the target and the sampled object is ensured to be inside the rotating arc rod. At this time, the power of the electric telescopic rod is turned on to make the electric telescopic rod The retraction rod drives the hydraulic expansion tube 1 to extend, forcing the hydraulic expansion tube 1 to extract the liquid inside the hydraulic box, and the hydraulic box will absorb the solution inside the hydraulic expansion tube 2, forcing the hydraulic expansion tube 2 to shrink. The shrinking hydraulic expansion tube 2 will drive the slider to slide inward along the inner wall of the slide slot, and multiple sliders drive the corresponding rotating arc rods to shrink through the L-shaped rod, and the clamping process of the equipment is completed by the movement of the rotating arc rod. In this process, due to the irregular shape of the material, some rotating arc rods first contact the outer wall of the material and stop running, while the remaining rotating arc rods move under the push of the electric expansion rod. Through the application of the above components, it is ensured that the multiple rotating arc rods will be close to the outer wall of the material during the clamping process, thereby improving the gripping force during evidence collection.

[0006] Preferably, the clamping assembly includes a fixed block fixedly connected to the bottom of the hydraulic box, six spring telescopic rods are fixedly connected to the side wall of the fixed block, a pushing square rod is fixedly connected to one end of the spring telescopic rod away from the fixed block, and a sliding groove is provided on the side wall of the L-shaped rod. Utilizing the characteristic that the above-mentioned L-shaped rod moves toward the center of the equipment, a pushing square rod and a spring telescopic rod are arranged inside the equipment. During the movement of the L-shaped rod, the pushing square rod will pass through the sliding groove and contact the side wall of the pressure plate, forcing the pressure plate to drive the rotating arc rod to rotate around the connection point as the center, presenting a Figure 5 In the state shown, when the pressure plate rotates outward, the rotating arc rods will rotate inward, so that multiple rotating arc rods cover the bottom of the material. Through the application of the above components, after the equipment completes the grabbing, multiple rotating arc rods rotate to the bottom of the material, increasing the bearing capacity of the rotating arc rods on the material, avoiding the clamping method, causing deformation of the material surface.

[0007] Preferably, the clamping assembly further comprises a mounting groove provided at the bottom of the mounting plate, an airbag is fixedly connected to the inner wall of the mounting groove, and a sliding frame is through-connected to the side wall of the airbag.

[0008] Preferably, the clamping assembly further comprises a sliding square rod slidably connected to the inner wall of the sliding frame, one end of the airbag away from the sliding frame is fixedly connected to a pressure plate, and a push rod is fixedly connected to the side wall of the pressure plate.

[0009] Preferably, the clamping assembly also includes a contraction frame rotatably connected between corresponding L-shaped rods, one end of the push rod away from the pressure plate is fixedly connected to the side wall of the contraction frame, and one end of the return spring away from the pressure plate is fixedly connected to the outer wall of the L-shaped rod. Utilizing the characteristic that the distance between adjacent L-shaped rods is reduced when the above-mentioned multiple L-shaped rods are displaced, a contraction frame and a sliding square rod are arranged inside the equipment. When the distance between the L-shaped rods is reduced, the contraction frame will be driven to slide toward the center of the equipment while being squeezed and contracted. At this time, the contraction frame will drive the push rod and the pressure plate to displace synchronously, and the pressure plate will squeeze the airbag to make the gas inside the airbag enter the sliding frame, forcing the sliding frame to extend outward, forcing the multiple sliding square rods to emerge outward and contact with the top of the material, thereby limiting the up and down shaking of the material and avoiding uneven thickness of the material. When the drone tilts, the material and the rotating arc rod are misaligned, and the material falls from a high altitude, causing damage to the material.

[0010] Preferably, the adjustment assembly includes eight hydraulic cylinders fixedly connected to the bottom of the fixed plate, the inner walls of the eight hydraulic cylinders are slidably connected with piston plates, and the bottom of the piston plate is fixedly connected with sliding rods. The eight hydraulic cylinders are connected through transmission pipes to form a circulation space inside.

[0011] Preferably, the adjustment component also includes a universal wheel fixedly connected to the end of the sliding rod away from the piston plate, and a transmission pipe is connected through the outer walls of the two adjacent hydraulic cylinders. The outer wall of the universal wheel is fixedly connected to the outer wall of the mounting plate. By utilizing the above-mentioned operating characteristic that when the equipment is running, the mounting plate will swing around the ball as the center, and an adjustment component is arranged inside the equipment. Due to the irregular shape of the restricted material, the center of gravity of the material will also shift. After the rotating arc rod completes the clamping, the material will form a whole with the mounting plate through the rotating arc rod. At this time, the center of gravity of the mounting plate will shift, and the mounting plate will move downward. The offset end will drive the piston plate to slide downward along the inner wall of the hydraulic cylinder through the universal wheel and the sliding rod, forcing the solution at the bottom of the piston plate to enter the rest of the hydraulic cylinder through the transmission pipe, and the tilted installation plate will drive the piston plate to move up along the inner wall of the hydraulic cylinder to receive the excess solution transmitted by the transmission pipe. Through the application of the above components, during the transportation of the equipment, the flow of solution inside the hydraulic cylinder allows the drone to adapt to the center of gravity deviation of various materials, thereby avoiding the situation where one end of the drone is heavier and the other end is lighter, causing the center of gravity of the drone to shift, affecting the flight efficiency of the drone.

[0012] A method for using an on-site evidence collection device of an unmanned aerial vehicle surveying instrument comprises the following steps:

[0013] S1: Before use, send the drone to the top of the target and ensure that the sampled object is inside the rotating arc rod. At this time, turn on the power of the electric telescopic rod, so that the electric telescopic rod drives the hydraulic telescopic tube to extend, forcing the hydraulic telescopic tube to extract the liquid inside the hydraulic tank;

[0014] S2: The hydraulic box absorbs the solution inside the hydraulic telescopic tube 2, forcing the hydraulic telescopic tube 2 to contract. The contracted hydraulic telescopic tube 2 drives the slider to slide inward along the inner wall of the slideway, and the multiple sliders drive the corresponding rotating arc rods to contract through the L-shaped rod;

[0015] S3: The movement of the rotating arc rods completes the clamping process of the equipment. Due to the irregular shape of the material, some rotating arc rods first contact the outer wall of the material and stop running, while the remaining rotating arc rods move under the push of the electric telescopic rod.

[0016] The present invention has the following beneficial effects:

[0017] (1) In view of the fact that the appearances of evidence objects are different, the present invention provides a collection mechanism inside the device. Before use, the drone is sent to the top of the target and the sampled object is ensured to be inside the rotating arc rod. At this time, the power of the electric telescopic rod is turned on, so that the electric telescopic rod drives the hydraulic telescopic tube 1 to extend, forcing the hydraulic telescopic tube 1 to extract the liquid inside the hydraulic box. The hydraulic box will absorb the solution inside the hydraulic telescopic tube 2, forcing the hydraulic telescopic tube 2 to contract. The contracted hydraulic telescopic tube 2 will drive the slider to slide inward along the inner wall of the slide groove. Multiple sliders drive the corresponding rotating arc rods to contract through the L-shaped rod. The clamping process of the device is completed by the movement of the rotating arc rod. In this process, due to the irregular shape of the material, some rotating arc rods first contact the outer wall of the material and stop running, while the remaining rotating arc rods move under the push of the electric telescopic rod. Through the application of the above components, it is ensured that the multiple rotating arc rods will be close to the outer wall of the material during the clamping process, thereby improving the gripping force during evidence collection.

[0018] (2) The present invention utilizes the characteristic that the L-shaped rod moves toward the center of the device, and a pushing square rod and a spring telescopic rod are arranged inside the device. During the movement of the L-shaped rod, the pushing square rod will pass through the sliding groove and contact the side wall of the pressure plate, forcing the pressure plate to drive the rotating arc rod to rotate around the connection point as the center, presenting a Figure 5 In the state shown, when the pressure plate rotates outward, the rotating arc rods will rotate inward, so that multiple rotating arc rods cover the bottom of the material. Through the application of the above components, after the equipment completes the grabbing, multiple rotating arc rods rotate to the bottom of the material, increasing the bearing capacity of the rotating arc rods on the material, avoiding the clamping method, causing deformation of the material surface.

[0019] (3) The present invention utilizes the characteristic that when the above-mentioned multiple L-shaped rods are displaced, the distance between adjacent L-shaped rods is reduced. A contraction frame and a sliding square rod are arranged inside the equipment. When the distance between the L-shaped rods is reduced, the contraction frame will be squeezed and contracted, and at the same time, it will be driven to slide toward the center of the equipment. At this time, the contraction frame will drive the push rod and the pressure plate to move synchronously. The pressure plate will squeeze the airbag, so that the gas inside the airbag enters the sliding frame, forcing the sliding frame to extend outward, forcing the multiple sliding square rods to emerge outward and contact with the top of the material, thereby limiting the up and down shaking of the material and avoiding uneven thickness of the material. When the drone tilts, it causes misalignment between the material and the rotating arc rod, and the material falls from a high altitude, causing damage to the material.

[0020] (4) The present invention utilizes the characteristic that when the above-mentioned operating device is in operation, the mounting plate will swing around the ball as the center. An adjustment component is arranged inside the device, wherein the center of gravity of the material will also shift due to the irregular shape of the restricted material. After the rotating arc rod completes the clamping, the material will form a whole with the mounting plate through the rotating arc rod. At this time, the center of gravity of the mounting plate will shift, and the downwardly shifted end of the mounting plate will drive the piston plate to slide downward along the inner wall of the hydraulic cylinder through the universal wheel and the sliding rod, forcing the solution at the bottom of the piston plate to enter the rest of the hydraulic cylinder through the transmission pipe, and the tilted mounting plate will drive the piston plate to move up along the inner wall of the hydraulic cylinder to receive the excess solution transmitted by the transmission pipe. Through the application of the above-mentioned components, during the transportation process of the device, the flow of the solution inside the hydraulic cylinder allows the drone to adapt to the center of gravity deviation of various materials, thereby avoiding the situation where one end of the drone is heavier and the other end is lighter, resulting in the center of gravity of the drone shifting, thereby affecting the flight efficiency of the drone. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the bottom of the overall structure of the present invention;

[0023] Figure 2 It is a top schematic diagram of the overall structure of the present invention;

[0024] Figure 3 It is a cross-sectional schematic diagram of the collection mechanism of the present invention;

[0025] Figure 4 For the present invention Figure 3 A is an enlarged schematic diagram;

[0026] Figure 5For the present invention Figure 3 A magnified schematic diagram of B;

[0027] Figure 6 It is a schematic diagram of the bottom component of the clamping component of the present invention;

[0028] Figure 7 For the present invention Figure 3 A magnified schematic diagram of middle C;

[0029] Figure 8 It is a cross-sectional schematic diagram of the clamping assembly of the present invention;

[0030] Fig. 9 It is a cross-sectional schematic diagram of the adjustment assembly of the present invention;

[0031] Fig.10 For the present invention Fig. 9 A magnified schematic diagram of D in the middle;

[0032] Fig.11 It is a schematic diagram of the working process of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] In the figure: 1. UAV; 11. Fixed plate; 12. Fixed rod; 13. Mounting plate; 14. Hydraulic box; 15. Electric telescopic rod; 16. Hydraulic telescopic tube 1; 17. Ball; 2. Collection mechanism; 21. Slide; 22. Hydraulic telescopic tube 2; 23. Sliding block; 24. L-shaped rod; 25. Rotating arc rod; 26. Pressure plate; 27. Reset spring; 3. Clamping assembly; 31. Fixed block; 32. Spring telescopic rod; 33. Pushing square rod; 34. Sliding groove; 35. Mounting groove; 36. Airbag; 37. Sliding frame; 38. Sliding square rod; 39. Pressure plate; 310. Pushing rod; 311. Retraction frame; 4. Adjustment assembly; 41. Hydraulic cylinder; 42. Piston plate; 43. Sliding rod; 44. Universal wheel; 45. Transmission tube. DETAILED DESCRIPTION

[0035] 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.

[0036] For example, see Figure 1 - Figure 5The present invention is a field evidence collection device for an unmanned aerial vehicle surveying instrument, comprising an unmanned aerial vehicle 1, a fixed plate 11 is fixedly connected to the bottom of the unmanned aerial vehicle 1, a fixed rod 12 is fixedly connected to the bottom of the fixed plate 11, a ball 17 is rotatably connected to the end of the fixed rod 12 away from the fixed plate 11, a mounting plate 13 is fixedly connected to the outer wall of the ball 17, a hydraulic box 14 is fixedly connected to the bottom of the mounting plate 13, an electric telescopic rod 15 is fixedly connected to the top of the mounting plate 13, a hydraulic telescopic tube 16 is fixedly connected to the power supply of the electric telescopic rod 15 away from the mounting plate 13, the other end of the hydraulic telescopic tube 16 is connected to the outer wall of the hydraulic box 14, a clamping assembly 3 is fixedly connected to the bottom of the hydraulic box 14, and an adjustment assembly 4 is fixedly connected to the bottom of the fixed plate 11;

[0037] The collecting mechanism 2 includes six slide grooves 21 provided at the bottom of the mounting plate 13, six hydraulic telescopic tubes 22 are connected through the side wall of the hydraulic box 14, a slider 23 is fixedly connected to one end of the six hydraulic telescopic tubes 22 away from the hydraulic box 14, the outer wall of the slider 23 is slidably connected to the inner wall of the slide groove 21, an L-shaped rod 24 is fixedly connected to the bottom of the slider 23, a rotating arc rod 25 is rotatably connected to one end of the L-shaped rod 24 away from the slider 23, a pressure plate 26 is fixedly connected to the side wall of the rotating arc rod 25, and a return spring 27 is fixedly connected to the side wall of the pressure plate 26. In view of the different shapes of the evidence collection objects, a collecting mechanism 2 is arranged inside the equipment. Before use, the drone 1 is sent to the top of the target, and it is ensured that the sampled object is inside the rotating arc rod 25. At this time, the power supply of the electric telescopic rod 15 is turned on. The electric telescopic rod 15 drives the hydraulic telescopic tube 16 to extend, forcing the hydraulic telescopic tube 16 to extract the liquid inside the hydraulic box 14, and the hydraulic box 14 will absorb the solution inside the hydraulic telescopic tube 22, forcing the hydraulic telescopic tube 22 to contract. The contracted hydraulic telescopic tube 22 will drive the slider 23 to slide inward along the inner wall of the slide 21, and multiple sliders 23 drive the corresponding rotating arc rods 25 to contract through the L-shaped rod 24. The clamping process of the equipment is completed by the movement of the rotating arc rods 25. In this process, due to the irregular shape of the material, some of the rotating arc rods 25 first contact the outer wall of the material and stop running, while the remaining rotating arc rods 25 are moved under the push of the electric telescopic rod 15. Through the application of the above components, it is ensured that the multiple rotating arc rods 25 will be close to the outer wall of the material during the clamping process, thereby improving the gripping force during evidence collection.

[0038] For example 2, please refer to Figure 6 - Fig.11The present invention is a field evidence collection device for an unmanned aerial vehicle surveying instrument. On the basis of the first embodiment, the clamping assembly 3 includes a fixed block 31 fixedly connected to the bottom of the hydraulic box 14. Six spring telescopic rods 32 are fixedly connected to the side wall of the fixed block 31. One end of the spring telescopic rod 32 away from the fixed block 31 is fixedly connected to a pushing square rod 33. A sliding groove 34 is provided on the side wall of the L-shaped rod 24. Utilizing the characteristic that the L-shaped rod 24 moves toward the center of the device, a pushing square rod 33 and a spring telescopic rod 32 are arranged inside the device. During the movement of the L-shaped rod 24, the pushing square rod 33 will pass through the sliding groove 34 and contact the side wall of the pressure plate 26, forcing the pressure plate 26 to drive the rotating arc rod 25 to rotate around the connection point, presenting a Figure 5 In the state shown, when the pressure plate 26 rotates outward, the rotating arc rod 25 will rotate inward, so that multiple rotating arc rods 25 cover the bottom of the material. Through the application of the above-mentioned components, after the equipment completes the grabbing, multiple rotating arc rods 25 rotate to the bottom of the material, increasing the bearing capacity of the rotating arc rod 25 on the material, avoiding the clamping method that causes deformation of the material surface.

[0039] The clamping assembly 3 further comprises a mounting groove 35 provided at the bottom of the mounting plate 13 , an air bag 36 is fixedly connected to the inner wall of the mounting groove 35 , and a sliding frame 37 is through-connected to the side wall of the air bag 36 .

[0040] The clamping assembly 3 further comprises a sliding square rod 38 slidably connected to the inner wall of the sliding frame 37 , one end of the airbag 36 away from the sliding frame 37 is fixedly connected to a pressure plate 39 , and a push rod 310 is fixedly connected to the side wall of the pressure plate 39 .

[0041] The clamping assembly 3 also includes a contraction frame 311 rotatably connected between the corresponding L-shaped rods 24, the end of the push rod 310 away from the pressure plate 39 is fixedly connected to the side wall of the contraction frame 311, and the end of the return spring 27 away from the pressure plate 26 is fixedly connected to the outer wall of the L-shaped rod 24. When the multiple L-shaped rods 24 are displaced, the distance between the adjacent L-shaped rods 24 is reduced. The contraction frame 311 and the sliding square rod 38 are arranged inside the device. When the distance between the L-shaped rods 24 is reduced, the belt is compressed while the contraction frame 311 is squeezed and contracted. The dynamic shrinkage frame 311 slides toward the center of the equipment. At this time, the shrinkage frame 311 will drive the push rod 310 and the pressure plate 39 to move synchronously. The pressure plate 39 will squeeze the airbag 36, so that the gas inside the airbag 36 enters the sliding frame 37, forcing the sliding frame 37 to extend outward, forcing multiple sliding square rods 38 to emerge outward and contact the top of the material, limiting the up and down shaking of the material and avoiding uneven thickness of the material. When the drone tilts, the material and the rotating arc rod 25 are misaligned, and the material falls from a high altitude, causing damage to the material.

[0042] The adjusting assembly 4 includes eight hydraulic cylinders 41 fixedly connected to the bottom of the fixed plate 11, the inner walls of the eight hydraulic cylinders 41 are slidably connected with piston plates 42, and the bottom of the piston plate 42 is fixedly connected with a sliding rod 43. The eight hydraulic cylinders 41 are connected through a transmission pipe 45 to form a circulation space inside.

[0043] The adjusting assembly 4 also includes a universal wheel 44 fixedly connected to the end of the sliding rod 43 away from the piston plate 42. A transmission pipe 45 is connected through the outer walls of the two adjacent hydraulic cylinders 41. The outer wall of the universal wheel 44 is fixedly connected to the outer wall of the mounting plate 13. When the above-mentioned operation is performed, the mounting plate 13 will swing around the ball 17 as the center. The adjusting assembly 4 is arranged inside the equipment. Due to the irregular shape of the restricted material, the center of gravity of the material will also shift. After the rotating arc rod 25 completes the clamping, the material will form a whole with the mounting plate 13 through the rotating arc rod 25. At this time, the center of gravity of the mounting plate 13 will shift, and the mounting plate 13 will deviate downward. The end that moves will drive the piston plate 42 to slide downward along the inner wall of the hydraulic cylinder 41 through the universal wheel 44 and the sliding rod 43, forcing the solution at the bottom of the piston plate 42 to enter the rest of the hydraulic cylinder 41 through the transmission pipe 45, and the tilted mounting plate 13 will drive the piston plate 42 to move upward along the inner wall of the hydraulic cylinder 41 to receive the excess solution transmitted by the transmission pipe 45. Through the application of the above components, during the transportation of the equipment, through the flow of the solution inside the hydraulic cylinder 41, the UAV 1 can adapt to the center of gravity deviation of various materials, so as to avoid that one end of the UAV 1 is heavier and the other end is lighter, resulting in the center of gravity of the UAV being shifted, affecting the flight efficiency of the UAV 1.

[0044] The method for using the evidence collection device includes the following steps:

[0045] S1: Before use, the drone 1 is sent to the top of the target, and the sampled object is ensured to be inside the rotating arc rod 25. At this time, the power of the electric telescopic rod 15 is turned on, so that the electric telescopic rod 15 drives the hydraulic telescopic tube 16 to extend, forcing the hydraulic telescopic tube 16 to extract the liquid inside the hydraulic box 14;

[0046] S2: The hydraulic box 14 absorbs the solution inside the hydraulic telescopic tube 22, forcing the hydraulic telescopic tube 22 to contract. The contracted hydraulic telescopic tube 22 drives the slider 23 to slide inward along the inner wall of the slide groove 21. The multiple sliders 23 drive the corresponding rotating arc rods 25 to contract through the L-shaped rods 24.

[0047] S3: The movement of the rotating arc rods 25 completes the clamping process of the equipment. Due to the irregular shape of the material, some of the rotating arc rods 25 first contact the outer wall of the material and stop running, while the remaining rotating arc rods 25 move under the push of the electric telescopic rod 15.

[0048] A specific application of this embodiment is: before use, the drone 1 is sent to the top of the target, and it is ensured that the sampled object is inside the rotating arc rod 25. At this time, the power of the electric telescopic rod 15 is turned on, so that the electric telescopic rod 15 drives the hydraulic telescopic tube 16 to extend, forcing the hydraulic telescopic tube 16 to extract the liquid inside the hydraulic box 14, and the hydraulic box 14 will absorb the solution inside the hydraulic telescopic tube 22, forcing the hydraulic telescopic tube 22 to shrink. The contracted hydraulic telescopic tube 22 will drive the slider 23 to slide inward along the inner wall of the slide 21, and multiple sliders 23 drive the corresponding rotating arc rods 25 to shrink through the L-shaped rod 24. The clamping process of the equipment is completed by the movement of the rotating arc rod 25. In this process, due to the irregular shape of the material, some rotating arc rods 25 first contact the outer wall of the material and stop running, while the remaining rotating arc rods 25 are moved under the push of the electric telescopic rod 15. Through the application of the above components, it is ensured that the multiple rotating arc rods 25 will be close to the outer wall of the material during the clamping process, thereby improving the gripping force during evidence collection.

[0049] Taking advantage of the fact that the L-shaped rod 24 moves toward the center of the device, a push square rod 33 and a spring telescopic rod 32 are provided inside the device. During the movement of the L-shaped rod 24, the push square rod 33 will pass through the sliding slot 34 and contact the side wall of the pressure plate 26, forcing the pressure plate 26 to drive the rotating arc rod 25 to rotate around the connection point, presenting a Figure 5 In the state shown, when the pressure plate 26 rotates outward, the rotating arc rod 25 will rotate inward, so that multiple rotating arc rods 25 are covered at the bottom of the material. Through the application of the above-mentioned components, after the equipment completes the grabbing, multiple rotating arc rods 25 rotate to the bottom of the material, increasing the bearing force of the rotating arc rods 25 on the material, avoiding the clamping method, causing deformation of the material surface. Utilizing the characteristic that the distance between adjacent L-shaped rods 24 is reduced when the above-mentioned multiple L-shaped rods 24 are displaced, a contraction frame 311 and a sliding square rod 38 are arranged inside the equipment. When the distance between the L-shaped rods 24 is reduced, the contraction frame 311 and the sliding square rod 38 are compressed during the extrusion and contraction. When the frame 311 contracts, it will drive the contraction frame 311 to slide toward the center of the equipment. At this time, the contraction frame 311 will drive the push rod 310 and the pressure plate 39 to move synchronously. The pressure plate 39 will squeeze the airbag 36, so that the internal gas of the airbag 36 enters the sliding frame 37, forcing the sliding frame 37 to extend outward, forcing multiple sliding square rods 38 to emerge outward and contact the top of the material, limiting the up and down shaking of the material, and avoiding uneven thickness of the material. When the drone tilts, it causes misalignment between the material and the rotating arc rod 25, and the material falls from a high altitude, causing damage to the material.

[0050] When the above-mentioned device is in operation, the mounting plate 13 will swing around the ball 17 as the center. An adjusting component 4 is arranged inside the device. The center of gravity of the material will also shift due to the irregular shape of the restricted material. After the rotating arc rod 25 completes the clamping, the material will form a whole with the mounting plate 13 by rotating the arc rod 25. At this time, the center of gravity of the mounting plate 13 will shift, and the downwardly shifted end of the mounting plate 13 will drive the piston plate 42 to slide downward along the inner wall of the hydraulic cylinder 41 through the universal wheel 44 and the sliding rod 43, forcing the solution at the bottom of the piston plate 42 to enter the rest of the hydraulic cylinder 41 through the transmission pipe 45, and the tilted mounting plate 13 will drive the piston plate 42 to move up along the inner wall of the hydraulic cylinder 41 to receive the excess solution transmitted by the transmission pipe 45. Through the application of the above-mentioned components, the device can adapt to the center of gravity deviation of various materials through the flow of the solution in the hydraulic cylinder 41 during transportation, so as to avoid the center of gravity of the drone 1 being shifted due to one end of the drone 1 being heavier and the other end being lighter, thereby affecting the flight efficiency of the drone 1.

[0051] 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. An unmanned aerial vehicle surveying and mapping instrument on-site evidence collection device, comprising an unmanned aerial vehicle (1), wherein the bottom of the unmanned aerial vehicle (1) is fixedly connected to a fixing plate (11), the bottom of the fixing plate (11) is fixedly connected to a fixing rod (12), the end of the fixing rod (12) away from the fixing plate (11) is rotatably connected to a ball (17), the outer wall of the ball (17) is fixedly connected to a mounting plate (13), the bottom of the mounting plate (13) is fixedly connected to a hydraulic box (14), the top of the mounting plate (13) is fixedly connected to an electric telescopic rod (15), the power supply of the electric telescopic rod (15) away from the mounting plate (13) is fixedly connected to a hydraulic telescopic tube (16), the other end of the hydraulic telescopic tube (16) is connected to the outer wall of the hydraulic box (14), the bottom of the hydraulic box (14) is fixedly connected to a clamping assembly (3), the bottom of the fixing plate (11) is fixedly connected to an adjustment assembly (4), characterized in that: Also includes: A collecting mechanism (2), the collecting mechanism (2) comprising six slide grooves (21) provided at the bottom of the mounting plate (13), six hydraulic telescopic tubes (22) being connected through the side wall of the hydraulic box (14), a slider (23) being fixedly connected at one end of the six hydraulic telescopic tubes (22) away from the hydraulic box (14), an outer wall of the slider (23) being slidably connected to the inner wall of the slide groove (21), an L-shaped rod (24) being fixedly connected at the bottom of the slider (23), a rotating arc rod (25) being rotatably connected at one end of the L-shaped rod (24) away from the slider (23), a pressure plate (26) being fixedly connected at the side wall of the rotating arc rod (25), and a return spring (27) being fixedly connected at the side wall of the pressure plate (26).

2. The on-site evidence collection device of an unmanned aerial vehicle surveying instrument according to claim 1 is characterized in that: The clamping assembly (3) comprises a fixed block (31) fixedly connected to the bottom of the hydraulic box (14); six spring telescopic rods (32) are fixedly connected to the side wall of the fixed block (31); one end of the spring telescopic rod (32) away from the fixed block (31) is fixedly connected to a pushing square rod (33); and a sliding groove (34) is provided on the side wall of the L-shaped rod (24).

3. The on-site evidence collection device of an unmanned aerial vehicle surveying instrument according to claim 2 is characterized in that: The clamping assembly (3) further comprises a mounting groove (35) provided at the bottom of the mounting plate (13), an air bag (36) being fixedly connected to the inner wall of the mounting groove (35), and a sliding frame (37) being through-connected to the side wall of the air bag (36).

4. The on-site evidence collection device of an unmanned aerial vehicle surveying instrument according to claim 3 is characterized in that: The clamping assembly (3) further comprises a sliding square rod (38) slidably connected to the inner wall of the sliding frame (37); one end of the airbag (36) away from the sliding frame (37) is fixedly connected to a pressure plate (39); and a push rod (310) is fixedly connected to the side wall of the pressure plate (39).

5. The on-site evidence collection device of an unmanned aerial vehicle surveying instrument according to claim 4 is characterized in that: The clamping assembly (3) also includes a contraction frame (311) rotatably connected between corresponding L-shaped rods (24), one end of the push rod (310) away from the pressure plate (39) is fixedly connected to the side wall of the contraction frame (311), and one end of the return spring (27) away from the pressure plate (26) is fixedly connected to the outer wall of the L-shaped rod (24).

6. The on-site evidence collection device of an unmanned aerial vehicle surveying instrument according to claim 5, characterized in that: The adjustment assembly (4) comprises eight hydraulic cylinders (41) fixedly connected to the bottom of the fixed plate (11), the inner walls of the eight hydraulic cylinders (41) are slidably connected to piston plates (42), and the bottom of the piston plate (42) is fixedly connected to a sliding rod (43).

7. The on-site evidence collection device of an unmanned aerial vehicle surveying instrument according to claim 6, characterized in that: The adjustment assembly (4) further comprises a universal wheel (44) fixedly connected to the end of the sliding rod (43) away from the piston plate (42); a transmission pipe (45) is connected through the outer walls of two adjacent hydraulic cylinders (41); and the outer wall of the universal wheel (44) is fixedly connected to the outer wall of the mounting plate (13).

8. A method for using an unmanned aerial vehicle surveying and mapping instrument on-site evidence collection device, using the unmanned aerial vehicle surveying and mapping instrument on-site evidence collection device as claimed in claim 7, characterized in that: The following steps are included: S1: Before use, the drone (1) is sent to the top of the target and the sampled object is ensured to be inside the rotating arc rod (25). At this time, the power of the electric telescopic rod (15) is turned on, so that the electric telescopic rod (15) drives the hydraulic telescopic tube (16) to extend, forcing the hydraulic telescopic tube (16) to extract the liquid inside the hydraulic box (14); S2: The hydraulic box (14) absorbs the solution in the hydraulic telescopic tube (22) to force the hydraulic telescopic tube (22) to contract. The contracted hydraulic telescopic tube (22) drives the slider (23) to slide inward along the inner wall of the slide groove (21). The multiple sliders (23) drive the corresponding rotating arc rods (25) to contract through the L-shaped rod (24). S3: The movement of the rotating arc rods (25) completes the clamping process of the equipment. Due to the irregular shape of the material, some rotating arc rods (25) first contact the outer wall of the material and stop running, while the remaining rotating arc rods (25) move under the push of the electric telescopic rod (15).

Images