Sampling unmanned aerial vehicle applied to geological exploration

Abstract

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a sampling unmanned aerial vehicle applied to geological exploration, the sampling unmanned aerial vehicle comprises a flying unmanned aerial vehicle carrying a sampling structure to realize a sampling function, and the sampling unmanned aerial vehicle further comprises a distribution chamber, a first fixing disc and a second fixing disc, a plurality of extension supports are arranged on the side periphery of the upper portion of the first fixing disc at equal intervals, first hanging lugs are arranged on the peripheral side of the lower portion of the first fixing disc and correspond to the extension supports, extension grabbing arms are rotationally connected to the ends of the first hanging lugs, and tension ropes are arranged on the outer sides of the extension grabbing arms. According to the invention, when the sampling grab bucket needs to be closed, the effect of assisting the sampling grab bucket to be quickly closed can be achieved, pressurization can be realized to accelerate resetting in the resetting process of the sampling grab bucket, the problem of material leakage and unloading caused by low closing speed can be effectively solved, the bottom of each sampling grab bucket is tightly closed, and the sampling grab bucket is convenient to use. And under the condition that more materials are filled in the sampling grab bucket and fly, the materials are not easy to leak and unload.

Description

Technical Field

[0001] The invention belongs to the technical field of unmanned aerial vehicles, and in particular relates to a sampling unmanned aerial vehicle used for geological exploration. Background Art

[0002] Geological exploration is an important activity in the field of earth science. This work is a key component of environmental protection and disaster prevention. Geological exploration usually includes several stages: preliminary exploration, detailed exploration and development exploration. The preliminary exploration stage mainly identifies areas with resource potential through geological survey collection, geophysical exploration and geochemical exploration. The detailed exploration stage conducts in-depth research on the identified areas through drilling, tunnel exploration and other means to evaluate the scale, quality and feasibility of resource extraction. The development exploration stage is to carry out detailed planning and preparation before mining after the resources are identified.

[0003] With the development of science and technology, geological exploration technology is also constantly improving. For example, the application of modern technologies such as remote sensing technology, geophysical exploration technology and geological information system has greatly improved the efficiency and accuracy of exploration. With the development of technology, drone sampling has also become the main means of modern geological collection. Drones can replace manpower to first conduct image sampling and geological sample sampling in high-risk areas, and collect environmental information in advance in unmanned areas. At present, drones mainly collect geological information by grabbing and sampling the surface. Compared with the structure of claw sampling, grab sampling has higher efficiency in loading and unloading, and grabs are more suitable for sampling bulk or loose materials such as sand, gravel, coal, etc. However, there are still some problems in grab sampling that need to be solved. For example, during the closing process of the grab, the problem of leakage and unloading caused by the slow closing speed leads to low single-time acquisition rate, requiring multiple round-trip flights for sampling, which consumes man-hours. Summary of the invention

[0004] The purpose of the present invention is to provide a sampling drone used in geological exploration, which can assist the sampling grab to close quickly when the sampling grab needs to be closed, and can increase pressure to accelerate the resetting process of the sampling grab, which can effectively solve the problem of leakage and unloading caused by slow closing speed, so that the bottom of each sampling grab is tightly closed, and it is not easy to leak and unload when the sampling grab is filled with a lot of materials.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A sampling drone used in geological exploration comprises a flying drone carrying a sampling structure to realize a sampling function, and also comprises a storage chamber, a first fixed plate and a second fixed plate, wherein the first fixed plate is located below the storage chamber, a plurality of extended supports are equidistantly arranged on the upper side circumference of the first fixed plate, a first hanging ear is arranged on the lower side circumference of the first fixed plate corresponding to the position of the extended support, an end portion of the first hanging ear is rotatably connected to an extended grab arm, a tension rope is arranged on the outer side of the extended grab arm, and the tension rope is pulled upward to drive the lower end of the extended grab arm to swing upward, the second fixed plate is located below the first fixed plate, a plurality of second hanging ears are equidistantly arranged on the outer side of the second fixed plate, a sampling grab bucket is rotatably connected to the end portion of the second hanging ear, the lower end of the extended grab arm is rotatably connected to the middle portion of the outer surface of the sampling grab bucket, and when the lower end of the extended grab arm is driven to swing upward, the sampling grab bucket is driven to flip outward to grab the target object.

[0007] In a preferred embodiment, the distribution chamber includes an upper motor chamber arranged at the top, and a driving motor and a rope encoder are arranged inside the upper motor chamber. The driving motor drives the rope encoder to rotate forward / reverse or stop, wherein multiple strands of the tension rope pass through the extension support, extend to the interior of the distribution chamber, are entangled to form a single rope and pass through the top of the distribution chamber to be wound around the rope encoder, and the multiple strands of the tension rope are formed into a relaxed or tense state through the rotation of the driving motor.

[0008] In a preferred embodiment, a lifting component is provided on the top of the second fixed disk, and the component includes a lower motor bin, a rope pulley and a lifting rope. The lower motor bin is fixed between the distribution chamber and the first fixed disk, and the rope pulley is rotatably arranged on the top of the second fixed disk. The lifting rope is wound around the rope pulley, and the end of the lifting rope extends upward to the interior of the lower motor bin. The motor inside the lower motor bin drives the rope pulley to rotate, thereby causing the lifting rope to rise or fall.

[0009] In a preferred embodiment, a telescopic structure is provided on the extended grab arm and above the tension rope connection structure, the telescopic structure enables the extended grab arm to form a lower arm and an upper arm, a raised plug rod is provided on the top of the lower arm, a slot is provided at the bottom of the upper arm corresponding to the position of the plug rod, a spring is also provided in the slot, and both ends of the spring are respectively fixed inside the slot and at the top of the plug rod.

[0010] In a preferred embodiment, a raised reinforcing rib is provided at the middle of the outer surface of the sampling grab bucket, and a buckle ear is provided on the outer surface of the reinforcing rib, and the lower end of the extended grab arm is rotatably connected to the buckle ear.

[0011] In a preferred embodiment, the sampling drone also includes a reset component, which includes a reset pressure plate located at the shoulder position of the top surface of the sampling grab, and the reset pressure plate extends along the top surface of the sampling grab. Under normal circumstances, the reset pressure plate holds the sampling grab to keep it in a closed state, and when the sampling grab is opened, it assists the sampling grab to quickly reset when it falls back.

[0012] In a preferred embodiment, the reset pressing plate is bent and extended downward toward the second fixed disk to form an extension plate, and the end surface of the extension plate extends toward the bottom surface of the second fixed disk to form a fixed plate, through which the reset assembly is fixed to the bottom surface of the second fixed disk.

[0013] In a preferred embodiment, the closed bite positions at the bottom of the multiple sampling grabs are all provided with a smooth cross-section, and the end face position of the cross-section is plugged with a special-shaped magnetic attraction, and the special-shaped magnetic attraction is triangular in shape. When the multiple sampling grabs are closed, the corresponding special-shaped magnetic attractions are attracted to each other to close the bottom surface of the sampling grabs.

[0014] In a preferred embodiment, the two sides of the special-shaped magnetic attraction adjacent to the other magnetic attractions are provided with empty step surfaces, namely the first step surface and the second step surface. The first step surface is arranged at the bottom position of one side of the special-shaped magnetic attraction, and the second step surface is arranged at the top position of the other side of the special-shaped magnetic attraction.

[0015] The technical effects achieved by the present invention are:

[0016] In the present invention, the spring in the extended grab arm squeezes the lower arm and presses it tightly against the sampling grab bucket, so that each sampling grab bucket is closely attached to each other and is in a normally closed state. When the tension rope is pulled upward, the extended grab arm is driven to tilt and the lower arm is retracted. At this time, the internal spring is in a compressed state to be relaxed. When the tension rope is relaxed downward, the spring releases the pressure to make the lower arm extend rapidly, and the sampling grab bucket connected to the lower arm quickly moves toward the center, thereby achieving the effect of assisting the sampling grab bucket to close quickly when the sampling grab bucket needs to be closed.

[0017] The present invention combines the telescopic structure inside the extended grab arm with the reset component, both of which have the effect of assisting the sampling grab to quickly reset when falling back. When the sampling grab is opened, the reset pressure sheet always maintains the restoring pressure on the sampling grab, and the pressure is increased to accelerate the recovery during the resetting process of the sampling grab, which can effectively solve the problem of material leakage and unloading caused by slow closing speed.

[0018] The present invention inserts a special-shaped magnetic suction at the closing position of the bottom of the sampling grab. When a number of sampling grabs grab the target object, during the closing process, the bottoms of the sampling grabs are quickly closed by the magnetic suction when they are butted. In addition, the function of the magnetic suction can make the bottom of each sampling grab tightly closed. Even when a large amount of material is flying inside the sampling grab, it is not easy to leak material when unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the grabbing mechanism in the present invention;

[0021] Figure 3 It is a schematic diagram of a half-section structure of the top position of the grabbing mechanism in the present invention;

[0022] Figure 4 It is a structural schematic diagram of one set of extended grab arms, tension ropes and sampling grab buckets in the present invention;

[0023] Figure 5 It is a schematic diagram of the half-section detail structure of the extended grab arm in the present invention;

[0024] Figure 6 It is a structural schematic diagram of the sampling grab bucket and the resetting assembly in the present invention;

[0025] Figure 7 It is a detailed structural diagram of the reset component in the present invention;

[0026] Figure 8 The present invention Figure 6 A detailed enlarged structural diagram of point A;

[0027] Fig. 9 It is a schematic diagram of the structure of the special-shaped magnetic attraction in the present invention;

[0028] Fig.10 It is a structural schematic diagram of the cross section of the occlusal state of the special-shaped magnetic attraction in the present invention.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Upper motor compartment; 2. Distribution compartment; 3. First fixed plate; 4. Lower motor compartment; 5. Extended support; 7. First mounting ear;

[0031] 8. Extended grab arm; 801. Lower arm; 802. Upper arm; 803. Insertion rod; 804. Slot; 805. Spring;

[0032] 9. Tension rope; 10. Second fixed plate; 11. Second hanging ear; 12. Sampling grab; 13. Rope pulley; 14. Lifting rope; 15. Strengthening rib; 16. Buckle ear;

[0033] 17. Reset assembly; 171. Fixing plate; 172. Extension plate; 173. Reset pressing piece;

[0034] 18. Driving motor; 19. Rope encoder;

[0035] 20. Special-shaped magnetic attraction; 201. First step surface; 202. Second step surface;

[0036] 21. Flying drones. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0040] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0041] Please see attached Figure 1-4 As shown, the present invention provides a sampling drone for geological exploration, including a flying drone 21 carrying a sampling structure to realize a sampling function, and also including a storage chamber 2, a first fixed plate 3 and a second fixed plate 10, the first fixed plate 3 is located below the storage chamber 2, a plurality of extended supports 5 are equidistantly arranged on the upper side of the first fixed plate 3, a first hanging ear 7 is arranged on the lower side of the first fixed plate 3 corresponding to the position of the extended support 5, an end of the first hanging ear 7 is rotatably connected with an extended grab arm 8, a tension rope 9 is arranged on the outer side of the extended grab arm 8, and the tension rope 9 is pulled upward to drive the lower end of the extended grab arm 8 to swing upward, the second fixed plate 10 is located below the first fixed plate 3, a plurality of second hanging ears 11 are equidistantly arranged on the outer side of the second fixed plate 10, a sampling grab 12 is rotatably connected to the end of the second hanging ear 11, the lower end of the extended grab arm 8 is rotatably connected to the middle of the outer surface of the sampling grab 12, when the lower end of the extended grab arm 8 is driven to swing upward, the sampling grab 12 is driven to flip outward to grab the target object.

[0042] See also Figure 3The distribution chamber 2 includes an upper motor chamber 1 arranged at the top, and a driving motor 18 and a rope encoder 19 are arranged inside the upper motor chamber 1. The driving motor 18 drives the rope encoder 19 to rotate forward / reverse or stop, wherein multiple tension ropes 9 pass through the extension support 5, extend to the interior of the distribution chamber 2, are entangled to form a single rope and pass through the top of the distribution chamber 2 and are wound around the rope encoder 19. The multiple tension ropes 9 are relaxed or tensed by the rotation of the driving motor 18.

[0043] See also Figure 4 A lifting component is provided on the top of the second fixed disk 10, and the component includes a lower motor bin 4, a rope pulley 13 and a lifting rope 14. The lower motor bin 4 is fixed between the distribution chamber 2 and the first fixed disk 3. The rope pulley 13 is rotatably arranged on the top of the second fixed disk 10. The lifting rope 14 is wound around the rope pulley 13, and the end of the lifting rope 14 extends upward to the interior of the lower motor bin 4. The motor inside the lower motor bin 4 drives the rope pulley 13 to rotate so that the lifting rope 14 rises or falls.

[0044] Among them, the motor structure inside the lower motor bin 4 is the same or similar to the motor structure inside the upper motor bin 1. Both use a motor and a rope encoder 19 to cooperate to complete the lifting of the lifting rope 14. One end of the lifting rope 14 is fixed in the lower motor bin 4, and the other end is fixed on the rope encoder 19 inside the lower motor bin 4.

[0045] According to the above structure, the distance between the second fixed plate 10 and the first fixed plate 3 is changed by changing the length of the rope. When the sampling grab 12 needs to be retracted and closed, the second fixed plate 10 is raised to make each sampling grab 12 flip around the second hanging ear 11 as the axis, and is used in conjunction with the motor structure inside the upper motor compartment 1. When the lifting rope 14 is relaxed and descends, the tension rope 9 cooperates to rise to quickly open the sampling grab 12. Conversely, when the lifting rope 14 rises, the tension rope 9 cooperates to relax the tension on the sampling grab 12 and close the sampling grab 12. The above structure enables the grabbing mechanism to complete the function of rapid closing or opening.

[0046] See also Figure 5 A telescopic structure is provided on the extended grab arm 8 and above the structure connected to the tension rope 9. The telescopic structure enables the extended grab arm 8 to form a lower arm 801 and an upper arm 802. A raised plug rod 803 is provided on the top of the lower arm 801, and a slot 804 is provided at the bottom of the upper arm 802 corresponding to the position of the plug rod 803. A spring 805 is also provided in the slot 804, and both ends of the spring 805 are respectively fixed inside the slot 804 and at the top of the plug rod 803.

[0047] According to the above structure, under normal conditions, the spring 805 in the extended grab arm 8 squeezes the lower arm 801 and presses it tightly against the sampling grab 12, so that each sampling grab 12 is tightly attached to each other and is in a normally closed state. When the tension rope 9 is pulled upward, the extended grab arm 8 is driven to tilt up and the lower arm 801 is retracted. At this time, the internal spring 805 is in a compressed state to be relaxed. When the tension rope 9 is relaxed downward, the spring 805 releases the pressure to make the lower arm 801 stretch quickly, and the sampling grab 12 connected to the lower arm 801 quickly moves toward the center, thereby achieving the effect of assisting the sampling grab 12 to close quickly when the sampling grab 12 needs to be closed.

[0048] See also Figure 6-7 A raised reinforcing rib 15 is provided at the middle of the outer surface of the sampling grab bucket 12 , and a buckle ear 16 is provided on the outer surface of the reinforcing rib 15 , and the lower end of the extended grab arm 8 is rotatably connected to the buckle ear 16 .

[0049] When the driving motor 18 in the upper motor compartment 1 drives the code rope device 19 to rotate, it drives the multiple tension ropes 9 on the code rope device 19 to rotate together, so that the multiple tension ropes 9 are tightened and move upward. At the same time, the tension ropes 9 drive the extension grab arm 8 to tilt up, so that the sampling grab bucket 12 connected to the end of the extension grab arm 8 is jointly linked and flipped, and multiple sampling grab buckets 12 are opened to prepare to grab the target object. On the contrary, when the driving motor 18 rotates in the opposite direction, the tension rope 9 does not generate tension on the extension grab arm 8, and the sampling grab bucket 12 falls back and resets, and resets and closes together to retain the target object inside the sampling grab bucket 12.

[0050] See also Figure 6-7 The sampling drone also includes a reset component 17, which includes a reset pressing piece 173 located at the shoulder position of the top surface of the sampling grab 12, and the reset pressing piece 173 extends along the top surface of the sampling grab 12. According to the above structure, under normal conditions, the reset pressing piece 173 holds the sampling grab 12 to keep it in a closed state, and when the sampling grab 12 is opened, the sampling grab 12 is assisted to quickly reset when it falls back;

[0051] The reset pressing piece 173 is bent and extended downward toward the second fixed disk 10 to form an extension plate 172 , and the end surface of the extension plate 172 extends toward the bottom surface of the second fixed disk 10 to form a fixing plate 171 , through which the reset assembly 17 is fixed to the bottom surface of the second fixed disk 10 .

[0052] Combined with the above structure, the telescopic structure inside the extended grab arm 8 combined with the reset assembly 17 both have the effect of assisting the sampling grab 12 to quickly reset when it falls back. When the sampling grab 12 is opened, the reset pressure plate 173 always maintains the restoration pressure on the sampling grab 12. During the resetting process of the sampling grab 12, the pressure is increased to accelerate the recovery, which can effectively solve the problem of leakage and unloading caused by slow closing speed.

[0053] See also Figure 8-10 The closed bite positions at the bottom of the multiple sampling grabs 12 are all provided with smooth cross-sections, and the end faces of the cross-sections are plugged with special-shaped magnetic suctions 20, which are triangular in shape. When the multiple sampling grabs 12 are closed, the corresponding special-shaped magnetic suctions 20 are attracted to each other to close the bottom surfaces of the sampling grabs 12. The two sides adjacent to the special-shaped magnetic suctions 20 and the other magnetic suctions are provided with vacant step surfaces, namely the first step surface 201 and the second step surface 202. The first step surface 201 is arranged at the bottom position of one side of the special-shaped magnetic suction 20, and the second step surface 202 is arranged at the top position of the other side of the special-shaped magnetic suction 20.

[0054] According to the above structure, a special-shaped magnetic suction 20 is inserted at the closed position of the bottom of the sampling grab 12. When several sampling grabs 12 grab the target object, during the closing process, the bottoms of the sampling grabs 12 are quickly closed by magnetic suction when they are docked, and the function of magnetic suction can be used to make the bottoms of each sampling grab 12 tightly closed. Even when there is a lot of material flying inside the sampling grab 12, it is not easy to leak material when unloading.

[0055] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A sampling drone used in geological exploration, characterized in that: include: Warehouse room (2); A first fixed plate (3), the first fixed plate (3) is located below the distribution chamber (2), a plurality of extended supports (5) are equidistantly arranged on the upper side of the first fixed plate (3), a first hanging ear (7) is arranged on the lower side of the first fixed plate (3) at a position corresponding to the extended support (5), an end of the first hanging ear (7) is rotatably connected to an extended grab arm (8), a tension rope (9) is arranged on the outer side of the extended grab arm (8), and the tension rope (9) is pulled upward to drive the lower end of the extended grab arm (8) to swing upward; A second fixed plate (10), the second fixed plate (10) is located below the first fixed plate (3), a plurality of second hanging ears (11) are equidistantly arranged on the outer peripheral side of the second fixed plate (10), a sampling grab bucket (12) is rotatably connected to the end of the second hanging ear (11), the lower end of the extended grab arm (8) is rotatably connected to the middle of the outer surface of the sampling grab bucket (12), and when the lower end of the extended grab arm (8) is driven to swing upward, the sampling grab bucket (12) is driven to flip outward to grab the target object.

2. A sampling drone for geological exploration according to claim 1, characterized in that: A telescopic structure is provided on the extension grab arm (8) and above the structure connected to the tension rope (9), and the telescopic structure enables the extension grab arm (8) to form a lower arm (801) and an upper arm (802), the top of the lower arm (801) is provided with a raised insertion rod (803), and the bottom of the upper arm (802) is provided with a slot (804) corresponding to the position of the insertion rod (803), and a spring (805) is also provided in the slot (804), and the two ends of the spring (805) are respectively fixed inside the slot (804) and at the top of the insertion rod (803).

3. The sampling drone used for geological exploration according to claim 1, characterized in that: The distribution chamber (2) comprises an upper motor chamber (1) arranged at the top, wherein a driving motor (18) and a rope encoder (19) are arranged inside the upper motor chamber (1), and the driving motor (18) drives the rope encoder (19) to rotate forward / reverse or stop.

4. The sampling drone used for geological exploration according to claim 2, characterized in that: The multiple strands of tension rope (9) pass through the extension support (5), extend to the interior of the storage chamber (2), are twisted to form a single strand of rope and pass through the top of the storage chamber (2) to be wound around the rope encoder (19). The multiple strands of tension rope (9) are rotated by the driving motor (18) to form a relaxed or tensed state.

5. The sampling drone used for geological exploration according to claim 1, characterized in that: A lifting assembly is provided on the top of the second fixed plate (10), the assembly comprising: A lower motor bin (4), wherein the lower motor bin (4) is fixed between the bin distribution chamber (2) and the first fixed plate (3); A rope winding pulley (13), wherein the rope winding pulley (13) is rotatably arranged on the top of the second fixed plate (10); A lifting rope (14) is wound around a rope pulley (13), and an end of the lifting rope (14) extends upward to the interior of a lower motor compartment (4). The motor inside the lower motor compartment (4) drives the rope pulley (13) to rotate, thereby causing the lifting rope (14) to rise or fall.

6. The sampling drone used for geological exploration according to claim 1, characterized in that: A raised reinforcing rib (15) is provided at the middle of the outer surface of the sampling grab (12), a buckle ear (16) is provided on the outer surface of the reinforcing rib (15), and the lower end of the extended grab arm (8) is rotatably connected to the buckle ear (16).

7. A sampling drone for geological exploration according to claim 6, characterized in that: The sampling drone also includes a reset component (17), wherein the reset component (17) includes a reset pressing piece (173) located at a shoulder position on the top surface of the sampling grab (12), and the reset pressing piece (173) extends along the top surface of the sampling grab (12). Under normal conditions, the reset pressing piece (173) holds the sampling grab (12) to keep it in a closed state, and when the sampling grab (12) is opened, it assists the sampling grab (12) to quickly reset when it falls back. The reset pressing sheet (173) is bent and extended downwardly toward the second fixed disk (10) to form an extension plate (172); the end surface of the extension plate (172) is further extended toward the bottom surface of the second fixed disk (10) to form a fixing plate (171); and the reset assembly (17) is fixed to the bottom surface of the second fixed disk (10) via the fixing plate (171).

8. The sampling drone used for geological exploration according to claim 1, characterized in that: The closed bite positions at the bottom of the plurality of sampling grabs (12) are all provided with smooth cut surfaces, and the end surface of the cut surface is plugged with a special-shaped magnetic attraction (20), and the special-shaped magnetic attraction (20) is triangular in shape. When the plurality of sampling grabs (12) are closed, the corresponding special-shaped magnetic attractions (20) are attracted to each other to close the bottom surface of the sampling grabs (12).

9. A sampling drone for geological exploration according to claim 8, characterized in that: The two sides of the special-shaped magnetic attraction (20) adjacent to the other magnetic attractions are provided with vacant step surfaces, respectively A first step surface (201), wherein the first step surface (201) is arranged at the bottom of one side of the special-shaped magnetic attraction (20); as well as A second step surface (202), wherein the second step surface (202) is arranged at the top position of the other side of the special-shaped magnetic attraction (20).

10. A sampling drone for geological exploration according to any one of claims 1 to 9, characterized in that: It also includes a flying drone (21) that carries the sampling structure to implement the sampling function.

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