A karst cavity natural source surface wave sonar detection device

Abstract

The present invention belongs to the technical field of karst cavity sonar detection, and specifically is a karst cavity natural source surface wave sonar detection device, comprising a fixed box, an adjusting component is arranged inside the fixed box, a sonar detection head is plugged into the top end of the adjusting component, and the adjusting component comprises a first cavity opened in the fixed box; a positioning sleeve is rotatably connected to the bottom wall of the first cavity, and a rotating frame is fixedly connected to the top end of the positioning sleeve. By arranging the adjusting component, the problem that the terrain in the cave is often complex and changeable, and there are many slopes, steps, protruding rocks and various gravel blocks is solved. Therefore, during the placement process of the cylindrical sonar detection device, the sonar detection device may not be in a horizontal state, which may cause the emission and reception angles of the sound waves to change, thereby causing a deviation between the measurement result and the actual situation. This deviation may affect the accuracy of the topographic map, resulting in inaccurate maps.

Description

Technical Field

[0001] This invention belongs to the field of karst cavity sonar detection technology, specifically a karst cavity natural source surface wave sonar detection device. Background Art

[0002] The karst cavity natural source surface wave sonar detection device is a highly efficient and accurate underground karst cavity detection device. It utilizes the characteristics of sound waves propagating underground for detection and has the advantages of wide detection range, high resolution, and low cost. It has broad application prospects in engineering geological exploration, geological disaster early warning, and resource exploration and development.

[0003] When using existing surface wave sonar devices for karst cavity natural source detection, the existing devices are generally cylindrical in shape. They are placed on the ground and emit sound waves. The feedback from these sound waves is used to collect geological structure data within the karst cavity, thus obtaining a detailed topographic map of the cave interior. However, the terrain inside caves is often complex and varied, containing numerous slopes, steps, protruding rocks, and various boulders. Therefore, during placement, the cylindrical sonar device may not be horizontal. This causes the emission and reception angles of the sonar head to be non-perpendicular to the horizontal plane, resulting in an angular deviation between the measurement results and the actual terrain inside the karst cavity. This deviation may affect the accuracy of the topographic map, leading to inaccurate maps.

[0004] Therefore, the present invention provides a surface wave sonar detection device for natural sources in karst cavities. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: the karst cavity natural source surface wave sonar detection device of the present invention includes a fixed box, an adjustment component is provided inside the fixed box, a sonar detection head is fixedly connected to the top of the adjustment component, and the adjustment component includes a first cavity opened inside the fixed box.

[0007] A positioning sleeve is rotatably connected to the bottom wall of the first cavity. A rotating frame is fixedly connected to the top of the positioning sleeve. An inner tube is rotatably connected inside the positioning sleeve. A fourth bevel gear is fixedly connected to the top of the inner tube. An inner shaft is rotatably connected to the middle of the inner tube. A fifth bevel gear is fixedly connected to the top of the inner shaft. A connecting rod is rotatably connected to one end of the rotating frame. A second bevel gear is fixedly connected to one end of the connecting rod. A connecting frame is fixedly connected to the circumferential surface of the connecting rod. A positioning post is fixedly connected to one end of the connecting frame. A fixed post is rotatably connected inside the positioning post. A first bevel gear is fixedly connected to the lower surface of the fixed post. A sonar probe is snapped onto the top of the fixed post. A fixed shaft is fixedly connected to the other end of the rotating frame. A third bevel gear is rotatably connected to the output end of the fixed shaft. The third bevel gear meshes with both the fifth and first bevel gears. The second bevel gear meshes with the fourth bevel gear.

[0008] The fixed box has a second cavity at the bottom of the positioning sleeve. A rotating gear is fixed to the bottom of the positioning sleeve, a longitudinal rotating gear is fixed to the bottom of the inner tube, and a self-rotating gear is fixed to the bottom of the inner shaft. The tooth surfaces of the rotating gear, the longitudinal rotating gear, and the self-rotating gear are all meshed with rack plates. The rack plates are used to control the direction of the sonar probe.

[0009] Preferably, the upper surface of the fixing post is provided with a slot, the lower surface of the sonar probe is fixed with a base block, the surfaces of the base block and the fixing post are both provided with through threaded holes, and a screw is threaded into the threaded hole of the fixing post.

[0010] Preferably, a placement box is fixedly connected to one side of the fixed box, the placement box being used to place the sonar probe, and two rotating blocks are fixedly connected to one side of the fixed box, with a protective cover rotatably connected between the two rotating blocks, the protective cover being used to protect the adjustment components inside the fixed box.

[0011] Preferably, both sides of the placement box are fixedly connected to fixed guide plates, and each of the two fixed guide plates has a limiting groove on the side that is close to each other. A sealing plate is slidably connected in the limiting groove. A limiting strip is fixedly connected to the sealing plate at the position corresponding to each limiting groove. The limiting strip can slide along the limiting groove. A handle is fixedly connected to one side of the sealing plate.

[0012] Preferably, a magnetic plate is fixed to the side of the sealing plate near the protective cover, and a magnetic groove is provided on the protective cover corresponding to the position of the magnetic plate, so that the magnetic plate can be inserted into the magnetic groove.

[0013] Preferably, the placement box has a third cavity, and two arc-shaped protective blocks are fixedly connected in the third cavity. The protective blocks are rubber blocks, and a frame is fixedly connected to the bottom wall of the third cavity. The frame is used to fix the bottom block.

[0014] Preferably, the lower surface of the fixed box is rotatably connected with a plurality of positioning frames, each positioning frame having a positioning plate slidably connected inside, and each positioning plate having a connecting block fixedly connected to one side. The positioning frame has a connecting groove at the position corresponding to the connecting block, and the positioning plate can slide along the connecting groove through the connecting block.

[0015] Preferably, a snap-fit ​​component is provided on one side of the positioning frame. The snap-fit ​​component includes a horizontal plate fixed to one side of the positioning frame. A horizontal groove is formed on the surface of the horizontal plate. Sliding grooves are formed on both sides of the inner wall of the horizontal groove. A slider is slidably connected in the sliding groove. A sliding plate is fixed to the slider at the position corresponding to each sliding groove. An insert plate is slidably passed through the surface of the slider. Two compression springs are fixed to one end of the insert plate. The other ends of the two compression springs are fixed to the slider. A snap-fit ​​groove is formed on the upper and lower surfaces of one end of the insert plate. A rotating plate is rotatably connected in each snap-fit ​​groove. A limiting plate is fixed to the positioning frame at the position corresponding to the horizontal plate. A plurality of limiting holes are formed on the surface of the limiting plate. The insert plate can be inserted into the limiting holes.

[0016] Preferably, a rubber ball is hinged to the bottom end of the positioning plate, and the rubber ball is used to increase the friction between the positioning plate and the stone.

[0017] Preferably, a limiting member is provided between every two positioning frames. The limiting member includes two auxiliary blocks fixed to one side of each positioning frame. An auxiliary frame is rotatably connected between every two auxiliary blocks. An auxiliary groove is opened at the end of each of the two auxiliary frames that is close to each other. A spring is fixedly connected in each auxiliary groove. The same auxiliary plate is fixedly connected between the two springs. The auxiliary plate can slide along the auxiliary groove.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The karst cavity natural source surface wave sonar detection device of the present invention, through the cooperative use of the adjustment component, completes the calibration of the sonar probe's survey position. Through the adjustment component, adaptive adjustment can be performed when the sonar probe tilts, achieving accurate survey map data of karst cavities and improving survey accuracy.

[0020] 2. The karst cavity natural source surface wave sonar detection device of the present invention, by rotating and unscrewing the screw at the top of the fixing column, and then inserting the bottom block on the lower surface of the sonar probe into the slot, the threaded hole on the surface of the bottom block will be aligned with the threaded hole of the fixing column. Then, the screw is turned into the threaded hole, thereby fixing the bottom block and the fixing column together, achieving the effect of convenient disassembly of the sonar probe.

[0021] 3. The karst cavity natural source surface wave sonar detection device of the present invention has a placement box fixed to one side of the fixed box. When the sonar probe is not in use, it can be removed and placed in the placement box for protection, preventing damage to the sonar probe during movement within the karst cavity. Therefore, the placement box can improve the safety of the sonar probe. At the same time, by rotating the protective cover, the adjustment components in the first cavity of the fixed box are covered, achieving the effect of protecting the adjustment components, thus improving the service life of the sonar detection equipment as a whole. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0024] Figure 2 This is a cross-sectional view of the main body of the invention;

[0025] Figure 3 This is a schematic diagram of the main structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the third cavity of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0028] Figure 6 This is a schematic diagram of the slot structure of the present invention;

[0029] Figure 7 This is a top view of the third cavity of the present invention;

[0030] Figure 8 This is a schematic diagram of the positioning frame of the present invention;

[0031] Figure 9 This is a schematic diagram of the insert plate of the present invention;

[0032] Figure 10 This is a schematic diagram of the auxiliary plate of the present invention;

[0033] Figure 11 This is a schematic diagram of the rotating frame of the present invention;

[0034] In the diagram: 1. Fixed box; 11. First cavity; 12. Protective cover; 13. Magnetic suction groove; 14. Placement box; 15. Fixed guide plate; 16. Sealing plate; 17. Magnetic plate; 18. Handle; 19. Rotating block; 110. Second cavity; 111. Limiting strip; 112. Limiting groove;

[0035] 2. Sonar probe; 21. Fixing post; 22. Slot; 23. Base block; 24. Threaded hole; 25. Screw; 26. Positioning post; 27. Connecting frame; 28. First bevel gear; 29. ​​Connecting rod; 210. Second bevel gear; 211. Rotating frame; 212. Fixed shaft; 213. Third bevel gear; 214. Positioning sleeve; 215. Fourth bevel gear; 216. Fifth bevel gear; 217. Rotating gear; 218. Self-rotating gear; 219. Vertical rotation gear; 220. Rack plate; 221. Inner shaft; 222. Inner tube;

[0036] 3. Third cavity; 31. Protective block; 32. Insert frame;

[0037] 4. Positioning frame; 41. Positioning plate; 42. Rubber ball; 43. Connecting block; 44. Horizontal plate; 45. Horizontal groove; 46. Slide groove; 47. Slider; 48. Slide plate; 49. Insert plate; 410. Compression spring; 411. Card slot; 412. Rotating plate; 413. Connecting groove; 414. Limiting plate; 415. Limiting hole;

[0038] 5. Auxiliary block; 51. Auxiliary frame; 52. Spring; 53. Auxiliary groove; 54. Auxiliary plate. Detailed Implementation

[0039] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0040] Example 1

[0041] like Figures 1 to 2As shown in the embodiment of the present invention, a surface wave sonar detection device for karst cavities includes a fixed box 1. An adjustment assembly is installed inside the fixed box 1. A sonar probe 2 is fixedly connected to the top of the adjustment assembly. The adjustment assembly includes a first cavity 11 opened within the fixed box 1. A positioning sleeve 214 is rotatably connected to the bottom wall of the first cavity 11. A rotating frame 211 is fixedly connected to the top of the positioning sleeve 214. An inner tube 222 is rotatably connected inside the positioning sleeve 214. A fourth bevel gear 215 is fixedly connected to the top of the inner tube 222. An inner shaft 221 is rotatably connected to the middle of the inner tube 222. A fifth bevel gear 216 is fixedly connected to the top of the inner shaft 221. A connecting rod 29 is rotatably connected to one end of the rotating frame 211. A second bevel gear 210 is fixedly connected to one end of the connecting rod 29. A connecting frame 27 is fixedly connected to the circumferential surface of the connecting rod 29. A positioning post 26 is fixedly connected to one end of the connecting frame 27. The internal rotating part of the 6 is connected to a fixed column 21. The lower surface of the fixed column 21 is fixedly connected to a first bevel gear 28. The top of the fixed column 21 is engaged with a sonar probe 2. The other end of the rotating frame 211 is fixedly connected to a fixed shaft 212. The output end of the fixed shaft 212 is rotatably connected to a third bevel gear 213. The third bevel gear 213 meshes with the fifth bevel gear 216 and the first bevel gear 28 respectively. The second bevel gear 210 meshes with the fourth bevel gear 215. The fixed box 1 has a second cavity 110 at the position corresponding to the bottom end of the positioning sleeve 214. The bottom end of the positioning sleeve 214 is fixedly connected to a rotating gear 217. The bottom end of the inner tube 222 is fixedly connected to a longitudinal rotating gear 219. The bottom end of the inner shaft 221 is fixedly connected to a self-rotating gear 218. The tooth surfaces of the rotating gear 217, the longitudinal rotating gear 219 and the self-rotating gear 218 are all engaged with a rack plate 220. The rack plate 220 is used to control the direction of the sonar probe 2.

[0042] Specifically, when using existing surface wave sonar devices for karst cavity natural sources, these devices are generally cylindrical in shape. When placed on the ground, they emit sound waves and collect geological structure data within the karst cavity through sound wave feedback, thereby obtaining a detailed topographic map of the cave interior. However, the terrain inside caves is often complex and varied, with many slopes, steps, protruding rocks, and various boulders. Therefore, during placement, the cylindrical sonar device may not be in a horizontal position, which can cause changes in the emission and reception angles of the sound waves. This can lead to deviations between the measurement results and the actual situation, potentially affecting the accuracy of the topographic map and resulting in inaccurate maps.

[0043] Therefore, this invention solves this problem by setting a certain structure. First, when it is necessary to survey karst cavities, the fixing box 1 is placed on the ground of the cave and fixed. Then, the sonar probe 2 is installed on the upper surface of the fixing column 21. After the sonar probe 2 is installed, the uppermost rack plate 220 is pushed. The uppermost rack plate 220 drives the rotating gear 217 to rotate. The rotation of the rotating gear 217 drives the positioning sleeve 214 fixed to it. Then, the positioning sleeve 214 drives the rotating frame 211 to rotate. The rotation of the rotating frame 211 can adjust the orientation of the sonar probe 2. The detector first determines the direction of the probe by moving the central rack plate 220. The central rack plate 220 then drives the longitudinal gear 219 to rotate. The rotation of the longitudinal gear 219 drives the inner tube 222 to rotate. The rotation of the inner tube 222 drives the fourth bevel gear 215, which is fixed at one end, to rotate. Since the fourth bevel gear 215 meshes with the second bevel gear 210, the fourth bevel gear 215 drives the second bevel gear 210 to rotate. The rotation of the second bevel gear 210 drives the connecting rod 29 to rotate. Then, the connecting rod 29 drives the connecting frame fixed to its circumference. Rotating 27 allows for precise adjustment of the angle of the sonar probe 2, further refining the direction and angle of the survey. Simultaneously, it pushes the bottommost rotating gear 218, which in turn rotates the inner shaft 221. This rotation, in turn, rotates the fifth bevel gear 216 fixed at its top. The fifth bevel gear 216 then rotates the third bevel gear 213, which in turn rotates the first bevel gear 28, which in turn rotates its fixing post 21. The rotation of the fixing post 21 then rotates the upper surface of the fixed post 21. The sonar probe 2 rotates, making the sound wave emission angle more comprehensive. Because of the irregularity of the rock surface on the top wall of the karst cavity, when the sound wave is emitted to only one point, the diffusion of the sound wave will be limited and cannot spread to the entire karst cavity. Therefore, when several sound wave emission points rotate, the sound waves emitted to the rock can diverge at various angles, thereby improving the accuracy of the survey results and completing the calibration of the survey position of the sonar probe 2. Through this adjustment component, adaptive adjustment can be made when the sonar probe 2 tilts, achieving accurate map data of the karst cavity and improving the accuracy of the survey.

[0044] The problem is that the terrain inside caves is often complex and varied, with many slopes, steps, protruding rocks, and various boulders. Therefore, during the placement of cylindrical sonar detection devices, the sonar detection devices may not be in a horizontal position. This will cause changes in the emission and reception angles of sound waves, resulting in deviations between the measurement results and the actual situation. Such deviations may affect the accuracy of topographic maps, leading to inaccurate maps.

[0045] like Figure 3 As shown, in this embodiment, the upper surface of the fixing post 21 is provided with a slot 22, and the lower surface of the sonar probe 2 is fixed with a base block 23. Both the base block 23 and the fixing post 21 are provided with through threaded holes 24, and a screw 25 is threaded into the threaded hole 24 of the fixing post 21.

[0046] Specifically, by rotating and unscrewing the screw 25 at the top of the fixing post 21, the bottom block 23 on the lower surface of the sonar probe 2 is inserted into the slot 22. Once the bottom block 23 is inserted into the slot 22, the threaded hole 24 on the surface of the bottom block 23 will align with the threaded hole 24 of the fixing post 21. Then, the screw 25 is turned into the threaded hole 24, thereby fixing the bottom block 23 and the fixing post 21 together, achieving the effect of convenient disassembly of the sonar probe 2.

[0047] like Figure 4 As shown, in this embodiment, a placement box 14 is fixedly connected to one side of the fixed box 1. The placement box 14 is used to place the sonar detector head 2. Two rotating blocks 19 are fixedly connected to one side of the fixed box 1. A protective cover 12 is rotatably connected between the two rotating blocks 19. The protective cover 12 is used to protect the adjustment components inside the fixed box 1.

[0048] Specifically, by fixing a placement box 14 to one side of the fixed box 1, when the sonar probe 2 is not in use, the sonar probe 2 can be removed and placed into the placement box 14 for protection, preventing damage to the sonar probe 2 during movement within the karst cavity. Therefore, the placement box 14 can improve the safety of the sonar probe 2. At the same time, by rotating the protective cover 12, the adjustment components inside the first cavity 11 of the fixed box 1 are covered, achieving the effect of protecting the adjustment components, thus improving the overall service life of the sonar detection equipment.

[0049] like Figure 4 As shown, in this embodiment, both sides of the placement box 14 are fixedly connected to fixed guide plates 15. On the side of the two fixed guide plates 15 that are close to each other, a limiting groove 112 is opened. A sealing plate 16 is slidably connected in the limiting groove 112. A limiting strip 111 is fixedly connected to the sealing plate 16 at the position corresponding to each limiting groove 112. The limiting strip 111 can slide along the limiting groove 112. A handle 18 is fixedly connected to one side of the sealing plate 16.

[0050] Specifically, after the sonar probe 2 is placed in the housing 14 for protection, the sealing plate 16 is pushed so that it can slide along the limiting groove 112 through the limiting strips 111 on both sides. The sealing plate 16 can then seal the sonar probe 2, thus preventing damage. When it is needed, the sealing plate 16 is pulled out by pulling the handle 18, and the sonar probe 2 can be taken out for surveying.

[0051] like Figure 4 As shown, in this embodiment, a magnetic plate 17 is fixedly connected to the side of the sealing plate 16 near the protective cover 12. The protective cover 12 has a magnetic groove 13 at the position corresponding to the magnetic plate 17, and the magnetic plate 17 can be inserted into the magnetic groove 13.

[0052] Specifically, during the process of sealing the placement box 14 with the sealing plate 16, the magnetic plate 17 on one side of the sealing plate 16 will be inserted into the magnetic groove 13, thereby enabling secondary fixation between the sealing plate 16 and the protective cover 12, and improving the protection effect of the placement box 14 on the sonar detector 2.

[0053] like Figure 4 As shown, in this embodiment, a third cavity 3 is provided inside the placement box 14. Two arc-shaped protective blocks 31 are fixedly connected inside the third cavity 3. The protective blocks 31 are rubber blocks. An insert frame 32 is fixedly connected to the bottom wall of the third cavity 3. The insert frame 32 is used to fix the insert bottom block 23.

[0054] Specifically, by fixing two arc-shaped protective blocks 31 to the inner wall of the third cavity 3 of the placement box 14, after the sonar probe 2 is placed into the placement box 14, the sonar probe 2 will be between the two rubber arc-shaped protective blocks 31. At the same time, a frame 32 is fixed to the bottom wall of the third cavity 3, so that the bottom block 23 can be inserted into the frame 32, thereby achieving better protection for the sonar probe 2. The frame 32 is also made of rubber and has a certain elasticity, which can better protect the sonar probe 2.

[0055] Example 2

[0056] like Figures 2 to 11 As shown in the first embodiment, another embodiment of the present invention is as follows: a plurality of positioning frames 4 are rotatably connected to the lower surface of the fixed box 1, and a positioning plate 41 is slidably connected inside each positioning frame 4. A connecting block 43 is fixedly connected to one side of each positioning plate 41. A connecting groove 413 is provided in the positioning frame 4 corresponding to the position of the connecting block 43, and the positioning plate 41 can slide along the connecting groove 413 through the connecting block 43.

[0057] Specifically, when using the sonar detector 2, the fixing box 1 is placed on the ground. Several positioning frames 4 are rotatably connected to the lower surface of the fixing box 1 by rotating it. Then, the positioning plate 41 inside the positioning frame 4 is pulled down to adjust it so that the entire fixing box 1 is in a roughly horizontal position. Then, the positioning plate 41 is fixed. This makes it easy to use the adjustment components.

[0058] like Figure 4 As shown, in this embodiment, a snap-fit ​​component is provided on one side of the positioning frame 4. The snap-fit ​​component includes a horizontal plate 44 fixedly attached to one side of the positioning frame 4. A horizontal groove 45 is provided on the surface of the horizontal plate 44. Sliding grooves 46 are provided on both sides of the inner wall of the horizontal groove 45. A slider 47 is slidably connected in the sliding groove 46. A sliding plate 48 is fixedly attached to the slider 47 at the position corresponding to each sliding groove 46. An insert plate 49 is slidably passed through the surface of the slider 47. Two compression springs 410 are fixedly attached to one end of the insert plate 49. The other ends of the two compression springs 410 are fixedly attached to the slider 47. A slot 411 is provided on the upper and lower surfaces of one end of the insert plate 49. A rotating plate 412 is rotatably connected in the slot 411. A limiting plate 414 is fixedly attached to the positioning frame 4 at the position corresponding to the horizontal plate 44. A plurality of limiting holes 415 are provided on the surface of the limiting plate 414. The insert plate 49 can be inserted into the limiting holes 415.

[0059] Specifically, after adjusting the positioning plate 41 in each positioning frame 4, by pulling the insert plate 49 outward and then sliding the slider 47, the slider 47 can drive the insert plate 49 to slide upward to above the connecting block 43 fixed to one side of the positioning plate 41. Then, the insert plate 49 abuts against the top of the connecting block 43, and by continuing to push the insert plate 49, the compression spring 410 is squeezed, and the insert plate 49 can be inserted into the limiting hole 415 of the limiting plate 414. During the process of inserting the insert plate 49 into the limiting hole 415, the rotating plate 412 in the slot 411 at one end of the limiting plate 414 will be squeezed. After passing through the limiting hole 415, the rotating plate 412 returns to its original position under the action of the built-in torsion spring. Figure 9 As shown, the effect of snap-fit ​​plate 49 is achieved, and the height of one of the positioning plates 41 is adjusted at the same time. Similarly, the height of the other two positioning plates 41 is adjusted appropriately so that the fixing box 1 is roughly horizontal, thereby improving the survey effect of the sonar detector 2.

[0060] like Figure 4 As shown, in this embodiment, a rubber ball 42 is hinged to the bottom end of the positioning plate 41. The rubber ball 42 is used to increase the friction between the positioning plate 41 and the stone.

[0061] Specifically, by attaching a rubber ball 42 to the bottom of the positioning plate 41, the bottom of the positioning plate 41 may be stuck between the rocks during the contact process between the positioning plate 41 and the rocks in the cave. Therefore, in order to improve the stability of the positioning plate 41, a rubber ball 42 is attached to the bottom of the positioning plate 41, which increases the friction between the positioning plate 41 and the rocks and improves the stability of the sonar detector 2 during use.

[0062] like Figure 4 As shown, in this embodiment, a limiting component is provided between every two positioning frames 4. The limiting component includes two auxiliary blocks 5 fixed to one side of each positioning frame 4. An auxiliary frame 51 is rotatably connected between every two auxiliary blocks 5. An auxiliary groove 53 is opened at the end of the two auxiliary frames 51 that is close to each other. A spring 52 is fixedly connected in each auxiliary groove 53. The same auxiliary plate 54 is fixed between the two springs 52. The auxiliary plate 54 can slide along the auxiliary groove 53.

[0063] Specifically, by setting a limiter between each pair of positioning frames 4, when the positioning plate 41 is rotated during the survey and fixing process, the auxiliary plate 54 between the two auxiliary blocks 5 will be pulled. Under the tension of the springs 52 at both ends, the auxiliary plate 54 can prevent each positioning frame 4 from having an excessive outward opening force, thus preventing the positioning frame 4 from having an excessive opening effect, which could cause the fixing box 1 to tip over and damage the sonar detector head 2, thereby achieving the effect of protecting the sonar detection equipment.

[0064] Working principle: First, when it is necessary to survey a karst cavity, the fixed box 1 is placed on the bottom of the cave. Several positioning frames 4 rotatably connected to the lower surface of the fixed box 1 are opened by rotation. Then, the positioning plate 41 inside the positioning frame 4 is pulled down for adjustment. Then, the insert plate 49 is pulled outward, and then the slider 47 is slid. At this time, the slider 47 can drive the insert plate 49 to slide upward, sliding to above the connecting block 43 fixed to one side of the positioning plate 41. Then, the insert plate 49 abuts against the top of the connecting block 43. Continuing to push the insert plate 49 will compress the compression spring 410, and then the insert plate 49 can be inserted into the limiting hole 415 of the limiting plate 414. During the process of the insert plate 49 being inserted into the limiting hole 415, the rotating plate 412 in the slot 411 at one end of the limiting plate 414 will be compressed. After passing through the limiting hole 415, the rotating plate 412 returns to its original position under the action of the built-in torsion spring. Specifically, as follows... Figure 9 As shown, the effect of snap-fit ​​plate 49 is achieved, and the height of one of the positioning plates 41 is adjusted at the same time. Similarly, the height of the other two positioning plates 41 is adjusted appropriately so that the fixing box 1 is roughly horizontal.

[0065] After fixing, unscrew the screw 25 at the top of the fixing post 21, and then insert the bottom block 23 on the lower surface of the sonar detector 2 into the slot 22. Once the bottom block 23 is inserted into the slot 22, the threaded hole 24 on the surface of the bottom block 23 will align with the threaded hole 24 of the fixing post 21. Then, turn the screw 25 into the threaded hole 24, thereby fixing the bottom block 23 to the fixing post 21. This achieves the effect of easy disassembly and reassembly of the sonar detector 2. After the sonar detector 2 is installed, first push the uppermost rack plate 220, which will drive the rotating gear 217. The rotation of the rotating gear 217 drives the positioning sleeve 214 fixed to it, which in turn drives the rotating frame 211 to rotate. The rotation of the rotating frame 211 adjusts the direction of the sonar detector 2, thus determining the survey direction. Then, it pushes the central rack plate 220 to move, which in turn drives the longitudinal gear 219 to rotate. The rotation of the longitudinal gear 219 drives the inner tube 222 to rotate, which in turn drives the fourth bevel gear 215 fixed to one end to rotate. Because... The fourth bevel gear 215 meshes with the second bevel gear 210, causing the second bevel gear 210 to rotate. This rotation of the second bevel gear 210 then rotates the connecting rod 29, which in turn rotates the connecting frame 27 fixed to its circumference. This allows for precise adjustment of the sonar detector head 2's angle, further refining the survey direction and angle. Then, the bottommost rotating gear 218 is pushed, causing the inner shaft 221 to rotate. The rotation of the inner shaft 221 then rotates the top fixed... The fifth bevel gear 216 rotates, which drives the third bevel gear 213 meshing with it. Then, the third bevel gear 213 drives the first bevel gear 28 meshing with it. The first bevel gear 28 drives its fixed column 21 to rotate. The rotation of the fixed column 21 drives the sonar probe 2 fixed to its upper surface, thereby completing the calibration of the sonar probe 2's survey position. Through this adjustment component, adaptive adjustment can be made when the sonar probe 2 tilts, achieving accurate survey map data of karst cavities and improving survey accuracy.

[0066] In addition, after the survey is completed, a placement box 14 is fixed to one side of the fixed box 1. When the sonar probe 2 is not in use, it can be removed and placed in the placement box 14 for protection, preventing damage to the sonar probe 2 during movement in the karst cavity. Therefore, the placement box 14 can improve the safety of the sonar probe 2. At the same time, by rotating the protective cover 12, the adjustment components in the first cavity 11 of the fixed box 1 are covered, achieving the effect of protecting the adjustment components, thus improving the service life of the sonar detection equipment as a whole.

[0067] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A karst cavity natural source surface wave sonar detection device, comprising a fixed box (1), an adjustment component is arranged inside the fixed box (1), and a sonar detection head (2) is fixedly connected to the top of the adjustment component, characterized in that: The adjustment assembly comprises a first cavity (11) opened in a fixed box (1); The bottom wall of the first cavity (11) is rotatably connected to a positioning sleeve (214), the top end of the positioning sleeve (214) is fixedly connected to a rotating frame (211), the interior of the positioning sleeve (214) is rotatably connected to an inner tube (222), the top end of the inner tube (222) is fixedly connected to a fourth bevel gear (215), the middle part of the inner tube (222) is rotatably connected to an inner shaft (221), the top end of the inner shaft (221) is fixedly connected to a fifth bevel gear (216), one end of the rotating frame (211) is rotatably connected to a connecting rod (29), one end of the connecting rod (29) is fixedly connected to a second bevel gear (210), and the circumferential surface of the connecting rod (29) is fixedly connected to A connecting frame (27), one end of the connecting frame (27) is fixedly connected to a positioning column (26), the interior of the positioning column (26) is rotatably connected to a fixing column (21), a lower surface of the fixing column (21) is fixedly connected to a first bevel gear (28), a top end of the fixing column (21) is clamped with a sonar detection head (2), the other end of the rotating frame (211) is fixedly connected to a fixing shaft (212), an output end of the fixing shaft (212) is rotatably connected to a third bevel gear (213), the third bevel gear (213) is respectively meshed with a fifth bevel gear (216) and the first bevel gear (28), and the second bevel gear (210) is meshed with a fourth bevel gear (215); The fixed box (1) is provided with a second cavity (110) at a position corresponding to the bottom end of the positioning sleeve (214); the bottom end of the positioning sleeve (214) is fixedly connected to a rotating gear (217); the bottom end of the inner tube (222) is fixedly connected to a longitudinal rotating gear (219); the bottom end of the inner shaft (221) is fixedly connected to a self-rotating gear (218); the tooth surfaces of the rotating gear (217), the longitudinal rotating gear (219) and the self-rotating gear (218) are all meshed with a rack plate (220); the rack plate (220) is used to control the direction of the sonar detection head (2); The lower surface of the fixed box (1) is rotatably connected to a plurality of positioning frames (4); A clamping member is provided on one side of the positioning frame (4), and the clamping member includes a transverse plate (44) fixedly connected to one side of the positioning frame (4), a transverse groove (45) is provided on the surface of the transverse plate (44), and sliding grooves (46) are provided on both sides of the inner wall of the transverse groove (45), and a slider (47) is slidably connected in the sliding groove (46), and a slide plate (48) is fixedly connected to the position of each sliding groove (46) of the slider (47), and a plug plate (49) is slidably penetrated through the surface of the slider (47), and one side of the plug plate (49) Two compression springs (410) are fixedly connected to the ends, and the other ends of the two compression springs (410) are fixedly connected to the slider (47). The upper surface and the lower surface of one end of the plug plate (49) are provided with a slot (411), and a rotating plate (412) is rotatably connected in the slot (411). The positioning frame (4) is fixedly connected to a limiting plate (414) at a position corresponding to the horizontal plate (44), and a plurality of limiting holes (415) are provided on the surface of the limiting plate (414), and the plug plate (49) can be inserted into the limiting holes (415).

2. The karst cavity natural source surface wave sonar detection device according to claim 1, characterized in that: The upper surface of the fixing column (21) is provided with a slot (22), the lower surface of the sonar detection head (2) is fixedly connected with a bottom block (23), the surface of the bottom block (23) and the fixing column (21) are both provided with a threaded hole (24) extending therethrough, and a screw rod (25) is threadedly connected inside the threaded hole (24) of the fixing column (21).

3. The karst cavity natural source surface wave sonar detection device according to claim 1, characterized in that: A placement box (14) is fixedly connected to one side of the fixed box (1), and the placement box (14) is used to place the sonar detection head (2). Two rotating blocks (19) are fixedly connected to one side of the fixed box (1), and a protective cover (12) is rotatably connected between the two rotating blocks (19). The protective cover (12) is used to protect the adjustment components in the fixed box (1).

4. The karst cavity natural source surface wave sonar detection device according to claim 3 is characterized by: Fixed guide plates (15) are fixedly connected to both sides of the placement box (14); a limiting groove (112) is provided on the sides of the two fixed guide plates (15) close to each other; a sealing plate (16) is slidably connected in the limiting groove (112); a limiting strip (111) is fixedly connected to the position of the sealing plate (16) corresponding to each limiting groove (112); the limiting strip (111) can slide along the limiting groove (112); and a handle (18) is fixedly connected to one side of the sealing plate (16).

5. The karst cavity natural source surface wave sonar detection device according to claim 4, characterized in that: A magnetic plate (17) is fixedly connected to one side of the sealing plate (16) close to the protective cover (12); a magnetic suction groove (13) is provided on the protective cover (12) at a position corresponding to the magnetic plate (17); and the magnetic plate (17) can be plugged into the magnetic suction groove (13).

6. The karst cavity natural source surface wave sonar detection device according to claim 3, characterized in that: A third cavity (3) is provided in the placement box (14), two arc-shaped protective blocks (31) are fixedly connected in the third cavity (3), the protective blocks (31) are rubber blocks, and an insertion frame (32) is fixedly connected to the bottom wall of the third cavity (3), the insertion frame (32) is used to fix the insertion bottom block (23).

7. The karst cavity natural source surface wave sonar detection device according to claim 1, characterized in that: A positioning plate (41) is slidably connected to the interior of each positioning frame (4), a connecting block (43) is fixedly connected to one side of each positioning plate (41), a connecting groove (413) is provided at a position of the positioning frame (4) corresponding to the connecting block (43), and the positioning plate (41) can slide along the connecting groove (413) through the connecting block (43).

8. The karst cavity natural source surface wave sonar detection device according to claim 7, characterized in that: A rubber ball (42) is hingedly connected to the bottom end of the positioning plate (41), and the rubber ball (42) is used to increase the friction between the positioning plate (41) and the stone.

9. The karst cavity natural source surface wave sonar detection device according to claim 7, characterized in that: A limiting member is provided between each two positioning frames (4), and the limiting member comprises two auxiliary blocks (5) fixedly connected to one side of each positioning frame (4); an auxiliary frame (51) is rotatably connected between each two auxiliary blocks (5); an auxiliary groove (53) is provided at one end of the two auxiliary frames (51) close to each other; a spring (52) is fixedly connected in each auxiliary groove (53); the same auxiliary plate (54) is fixedly connected between the two springs (52); and the auxiliary plate (54) can slide along the auxiliary groove (53).

Images