A multi-element inductive air-core loop for airborne electromagnetic methods

Abstract

The utility model relates to the field of geophysical exploration discloses a kind of ground-air electromagnetic method multivariate induction type air coil, including the top detachably connected with fixed mechanism of the shell, the top fixedly connected with lower fixed ring of the shell, the bottom detachably connected with stabilizing mechanism of the shell, the inside fixedly connected with connecting mechanism of the shell, the inside of the shell is equipped with placing groove, the inner wall of the placing groove is fixedly connected with wire, the fixed mechanism includes threaded outer ring, the outer wall of the threaded outer ring is threadedly connected with threaded inner ring, the inner wall of the threaded outer ring is slidably connected with buckle, the inner wall of the buckle is slidably connected with fixed column one. In the utility model, the level state is fixed and adjusted by two different methods of coil land and air, so that better fixing in the air and better level on the ground are realized, which greatly saves manpower and material resources and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of geophysical exploration, and in particular to a multi-element induction hollow coil for the ground-to-air electromagnetic method. Background Technology

[0002] Geophysical exploration requires the exploration of complex terrain areas that are difficult for ground personnel to access, such as mountains, hills, and areas with high vegetation cover. Ground-to-air electromagnetic (GTE) detection methods have the potential for high efficiency and deep-penetration exploration, enabling aerial detection of the ground. This significantly reduces the difficulty of the work and improves the efficiency of exploration, thus becoming one of the mainstream detection methods in the field of geophysical exploration. This has spurred the continuous development of related technologies and equipment, and consequently increased the demand for multi-element induction hollow coils for GTE methods.

[0003] In ground-to-air electromagnetic exploration, receiving coils are typically mounted on drones to collect magnetic field information. However, when placing the drone-suspended coil on the ground for exploration, uneven ground can cause the coil to become misaligned. In this case, when collecting a signal for one component, signals for other components may be collected simultaneously. Furthermore, the effective area for data collection is reduced, leading to data distortion and affecting the accuracy of the exploration results. Therefore, a coil that can be placed stably on the ground and accurately collect magnetic field information is needed.

[0004] In ground-to-air electromagnetic detection methods, existing technologies typically involve mounting a receiving device, i.e., a coil, on a drone to collect magnetic field information. However, when the coil suspended on the drone needs to be placed on the ground for detection, existing receiving devices lack a support structure, making it difficult to keep the coil level on uneven ground. This leads to the mixing of signals from other components when acquiring one component of the signal, reduces the effective acquisition area, and ultimately distorts the detected data, severely affecting the accuracy and reliability of the detection results. Therefore, a multi-element inductive hollow coil for ground-to-air electromagnetic detection is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-element induction hollow coil for the ground-to-air electromagnetic method, which aims to improve the existing land-to-air exploration technology, which cannot better keep the coil suspended in the air and cannot better fix it horizontally on land, thus causing a lot of manpower and material resources to be wasted.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A type of air-ground electromagnetic multi-electromagnetic induction hollow coil includes a shell, a fixing mechanism detachably connected to the top of the shell, a lower fixing ring fixedly connected to the top of the shell, a stabilizing mechanism detachably connected to the bottom of the shell, a connecting mechanism fixedly connected inside the shell, a placement groove opened inside the shell, a wire detachably connected to the inner wall of the placement groove, a fixing post two fixedly and detachably connected inside the lower fixing ring, the fixing mechanism including a threaded outer ring, a threaded inner ring threadedly connected to the outer wall of the threaded outer ring, a buckle slidably connected to the inner wall of the threaded outer ring, a fixing post one slidably connected to the inner wall of the buckle, and an upper fixing ring fixedly connected to the top of the fixing post one;

[0008] As a further description of the above technical solution:

[0009] The stabilizing mechanism includes a support column, a spring fixedly connected to the outer wall of the support column, a tensioning assembly slidably connected to the outer wall of the support column, and a contraction assembly fixedly connected below the tensioning assembly.

[0010] As a further description of the above technical solution:

[0011] The tensioning assembly includes a sliding ring, a connecting block is fixedly connected to the outer wall of the sliding ring, a connecting rod is fixedly connected to the inner wall of the connecting block, and a tensioning rod is rotatably connected to the outer wall of the connecting rod.

[0012] As a further description of the above technical solution:

[0013] The shrinking assembly includes a fixing block, a connecting ring fixedly connected to the outer wall of the fixing block, a shrinking rod slidably connected to the inner wall of the connecting ring, and a support foot fixedly connected to the front end of the shrinking rod;

[0014] As a further description of the above technical solution:

[0015] The connecting mechanism includes a second support column, and a second connecting rod is fixedly connected to the outer wall of the second support column. The second connecting rod is fixedly connected to the inner wall of the placement groove.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the placement slot is detachably connected to a wire, and the second fixing post is connected to the inside of the lower fixing ring;

[0018] As a further description of the above technical solution:

[0019] The inner wall of the first support column is detachably connected to the inner wall of the second support column, and the sliding ring is slidably connected to the outer wall of the first support column.

[0020] As a further description of the above technical solution:

[0021] The inner wall of the sliding ring is slidably connected to the outer wall of the spring, and the tension rod is slidably connected to the inner wall of the fixed block.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the connecting block moves up and down by the sliding ring, which drives the connecting rod to move. The connecting rod moves under the drive of the connecting block, causing the connecting rod to drive the tension rod to stretch. The stretching of the connecting rod takes place on the inner wall of the fixed block. The two sides of the fixed block are fixed by the connecting ring. The movement of the connecting rod drives the retraction rod to retract. The retraction rod drives the support leg to move, thereby adjusting its position. After adjusting according to the terrain, the coil is brought to a horizontal position and then fixed with bolts, thus enabling the coil to conduct surveys and explorations on land.

[0024] 2. In this utility model, a rotating threaded outer ring is formed, with its inner wall threadedly connected to the outer wall of the threaded inner ring. The threaded outer ring slides downwards, continuously pressing against the buckle during its sliding process. The buckle tightens due to the continuous pressing of the threaded outer ring, and the tightened buckle fixes the fixing post one, making the fixing post one firmly fixed on the outer shell 1. The bottom end of the fixing post one is fixedly connected to an upper fixing ring, thereby fixing the coil in the air and enabling the coil to be used for exploration and detection in the control system. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a multi-element induction hollow coil for the ground-to-air electromagnetic method proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the fixing mechanism for a multi-element induction hollow coil using the ground-to-air electromagnetic method proposed in this utility model.

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the stabilization mechanism of a multi-element induction hollow coil for the ground-to-air electromagnetic method proposed in this utility model.

[0029] Legend:

[0030] 1. Outer shell; 2. Fixing mechanism; 21. Threaded outer ring; 22. Threaded inner ring; 23. Buckle; 24. Fixing post one; 25. Upper fixing ring; 3. Lower fixing ring; 4. Stabilizing mechanism; 41. Support post one; 42. Spring; 43. Tensioning assembly; 431. Sliding ring; 432. Connecting block; 433. Connecting rod one; 434. Tensioning rod; 44. Retraction assembly; 441. Fixing block; 442. Connecting ring; 443. Retraction rod; 444. Support leg; 5. Connecting mechanism; 51. Support post two; 52. Connecting rod two; 6. Placement slot; 7. Wire; 8. Fixing post two. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1 to 2 This utility model provides an embodiment of a ground-to-air electromagnetic multi-electromagnetic induction hollow coil, comprising a shell 1, which serves as the basic load-bearing structure of the entire device. A fixing mechanism 2 is detachably connected to the top of the shell 1, facilitating the fixing of the coil in a suitable position during use. A lower fixing ring 3 is fixedly connected to the top of the shell 1, and a fixing post 8 is detachably connected to its inner side via bolts or clips 23. A stabilizing mechanism 4 is detachably connected to the bottom of the shell 1, further enhancing the connection strength of the top structure. A connecting mechanism 5 is fixedly connected inside the shell 1, which is the core support for the stable operation of the coil. The component has a placement slot 6 inside the outer shell 1. The inner wall of the placement slot 6 is detachably connected to a wire 7. The placement slot 6 is fixed at multiple points with the connecting rod 52 to ensure that the coil will not affect the horizontal accuracy during the detection process. The lower fixing ring 3 is fixedly and detachably connected to a fixing post 8. The outer wall of the threaded outer ring 21 is threadedly connected to a threaded inner ring 22 to prepare for fixing the outer shell 1. The inner wall of the threaded outer ring 21 is slidably connected to a buckle 23, which fixes the fixing post. The inner wall of the buckle 23 is slidably connected to a fixing post 24. The top of the fixing post 24 is fixedly connected to an upper fixing ring 25, which is connected to the UAV.

[0033] The stabilizing mechanism 4 includes a support column 41, which provides support for all working parts. A spring 42 is fixedly connected to the outer wall of the support column 41, which acts as a buffer for the overall structure. A tension component 43 is slidably connected to the outer wall of the support column 41, which provides favorable conditions for stabilizing the coil. A contraction component 44 is fixedly connected below the tension component 43, which can adjust the overall stability. A wire 7 is detachably connected to the outer wall of the placement slot 6, which provides space for the coil. A second fixing column 8 is connected inside the lower fixing ring 3, which ensures the suspension and fixation. The connecting mechanism 5 includes a second support column 51, which provides support for the internal components of the outer shell 1. A second connecting rod 52 is fixedly connected to the outer wall of the second support column 51, which connects the support column and the wire 7. The second connecting rod 52 is fixedly connected to the inner wall of the placement slot 6.

[0034] Reference Figures 2 to 4 The tensioning assembly 43 includes a sliding ring 431 that slides on a support column. A connecting block 432 is fixedly connected to the outer wall of the sliding ring 431. The sliding of the sliding ring 431 drives the connecting block 432. A connecting rod 433 is fixedly connected to the inner wall of the connecting block 432. The movement of the connecting block 432 drives the connecting rod. A tensioning rod 434 is rotatably connected to the outer wall of the connecting rod 433. The connecting rod drives the tensioning rod to perform a tensioning motion.

[0035] The retraction assembly 44 includes a fixed block 441, which provides sliding conditions for the tension rod 434. A connecting ring 442 is fixedly connected to the outer wall of the fixed block 441, and the connecting ring 442 connects to the fixed block 441. A retraction rod 443 is slidably connected to the inner wall of the connecting ring 442. The retraction rod 443 retracts within the inner wall of the connecting ring 442. A support leg 444 is fixedly connected to the front end of the retraction rod 443, which facilitates the stability of the overall mechanism. The inner wall of support column one 41 is detachably connected to the inner wall of support column two 51, which facilitates land and air operations. The inner wall of support column one 41 is detachably connected to the bottom end of the outer shell 1. Support column one 41 serves as the foundation for fixing the coil. The outer wall of support column one 41 is slidably connected to the bottom end of the connecting mechanism 5. A sliding ring 431 is slidably connected to the outer wall of support column one 41, which serves as the foundation for driving other components. The inner wall of the sliding ring 431 is slidably connected to the outer wall of the spring 42, which provides a buffering effect for the overall structure.

[0036] Working principle: When it is necessary to use a drone for aerial reconnaissance, the fixing mechanism 2 is fixed to the top of the outer shell 1. The fixing column 2 is used to fix the fixing mechanism 2 to the top of the outer shell 1. After fixing, the threaded outer ring 21 is rotated. The inner wall of the threaded outer ring 21 is threadedly connected to the outer wall of the threaded inner ring 22. The threaded outer ring 21 slides downward. During the sliding process, the threaded outer ring 21 is continuously squeezed against the buckle 23. The buckle 23 is tightened by the continuous squeezing of the threaded outer ring 21. The tightened buckle 23 fixes the fixing column 24, so that the fixing column 24 is firmly fixed to the outer shell 1. The bottom end of the fixing column 24 is fixedly connected to the upper fixing ring 25. The upper fixing ring 25 is connected to the drone, thereby realizing the fixation of the coil in the air, so that the coil can conduct reconnaissance and detection in the drone.

[0037] When the coil needs to conduct surveys and explorations on land, the stabilizing mechanism 4 is connected to the bottom of the coil, and the support column 41 is connected to the outer shell 1, so that the stabilizing mechanism 4 can be fixed on the outer shell 1. At this time, the sliding ring 431 is moved. The outer wall of the sliding ring 431 is fixedly connected to the connecting block 432. The connecting block 432 moves up and down through the drive of the sliding ring 431. The connecting block 432 drives the connecting rod 433 to move. The connecting rod 433 moves under the drive of the connecting block 432, so that the connecting rod drives the tension rod 434 to perform a stretching movement. The stretching movement of the connecting rod takes place on the inner wall of the fixing block 441. The two sides of the fixing block 441 are fixed by the connecting ring 442. The movement of the connecting rod drives the retraction rod 443 to retract. The retraction rod 443 drives the support leg 444 to move, so that the position is adjusted. After adjusting according to the terrain, the coil is in a horizontal state and then fixed with bolts, thereby realizing the coil to conduct surveys and explorations on land.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A type of air-to-ground electromagnetic multi-electrode induction hollow coil, comprising a shell (1), characterized in that: The top of the outer shell (1) is detachably connected to a fixing mechanism (2), the top of the outer shell (1) is fixedly connected to a lower fixing ring (3), the bottom of the outer shell (1) is detachably connected to a stabilizing mechanism (4), the inside of the outer shell (1) is fixedly connected to a connecting mechanism (5), the inside of the outer shell (1) is provided with a placement groove (6), the inner wall of the outer shell (1) is detachably connected to a wire (7), and the lower fixing ring (3) is fixedly and detachably connected to a fixing post two (8); The stabilizing mechanism (4) includes a support column (41), a spring (42) is fixedly connected to the outer wall of the support column (41), a tensioning component (43) is slidably connected to the outer wall of the support column (41), and a contraction component (44) is fixedly connected below the tensioning component (43).

2. The air-to-ground electromagnetic multi-element induction hollow coil according to claim 1, characterized in that: The fixing mechanism (2) includes a threaded outer ring (21), the outer wall of which is threadedly connected to a threaded inner ring (22), the inner wall of which is slidably connected to a buckle (23), the inner wall of which is slidably connected to a fixing post (24), and the top end of the fixing post (24) is fixedly connected to an upper fixing ring (25).

3. The air-to-ground electromagnetic multi-element induction hollow coil according to claim 1, characterized in that: The tensioning assembly (43) includes a sliding ring (431), a connecting block (432) is fixedly connected to the outer wall of the sliding ring (431), a connecting rod (433) is fixedly connected to the inner wall of the connecting block (432), and a tensioning rod (434) is rotatably connected to the outer wall of the connecting rod (433).

4. The air-to-ground electromagnetic multi-element induction hollow coil according to claim 1, characterized in that: The shrinking assembly (44) includes a fixing block (441), a connecting ring (442) is fixedly connected to the outer wall of the fixing block (441), a shrinking rod (443) is slidably connected to the inner wall of the connecting ring (442), and a support leg (444) is fixedly connected to the front end of the shrinking rod (443).

5. A multi-element induction hollow coil for ground-to-air electromagnetic method according to claim 1, characterized in that: The connecting mechanism (5) includes a second support column (51), and a second connecting rod (52) is fixedly connected to the outer wall of the second support column (51). The outer wall of the second connecting rod (52) is fixedly connected to the inner wall of the placement groove (6).

6. The air-to-ground electromagnetic multi-element induction hollow coil according to claim 1, characterized in that: The outer wall of the placement groove (6) is detachably connected to a wire (7), and the second fixing post (8) is connected inside the lower fixing ring (3).

7. A multi-element induction hollow coil for ground-to-air electromagnetic method according to claim 1, characterized in that: The inner wall of the support column (41) is detachably connected to the bottom end of the outer shell (1), and the outer wall of the support column (41) is slidably connected to the bottom end of the connecting mechanism (5).

8. A multi-element induction hollow coil for ground-to-air electromagnetic method according to claim 3, characterized in that: The sliding ring (431) is slidably connected to the outer wall of the support column (41), and the inner wall of the sliding ring (431) is slidably connected to the outer wall of the spring (42).

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