Active fault detection sampling device for geological disaster prevention and control

Abstract

The invention relates to the technical field of geological sampling, and discloses an active fault detection sampling device for geological disaster prevention and control, which comprises a support base, the lifting mechanism is arranged on the supporting base; the turnover mechanism is arranged at the lifting end of the lifting mechanism; the first mounting plate is arranged at the rotating end of the turnover mechanism and is fixedly provided with a first motor, an output shaft of the first motor is fixedly connected with a plurality of elastic mechanisms in the circumferential direction, the elastic mechanisms are detachably connected with a sampling barrel and a sealing cover, the sampling barrel is detachably connected with the sealing cover, and the side wall of the sampling barrel is rotatably connected with a magnetic attraction body; the second mounting plate is fixedly connected to the first mounting plate and fixedly connected with a first electric push rod, the output end of the first electric push rod is fixedly connected with an electromagnetic base, and the electromagnetic base is used for being attracted to the magnetic attraction body. According to the invention, efficient layered sampling can be realized, rapid packaging of the sampling barrel is realized, and a soil sample in the sampling barrel is protected from light, so that the accuracy of chronology data analysis and test of a sample sampled by an active fault is improved.

Description

Technical Field

[0001] This invention relates to the field of geological sampling technology, and in particular to a sampling device for detecting active faults for geological disaster prevention. Background Technology

[0002] An active fault is a geological fault structure that has experienced significant activity since the Late Pleistocene (approximately 100,000 years ago) and may become active again in the future. Active faults can induce earthquakes and a series of secondary geological hazards. In field geological surveys of active faults, sampling and analyzing fault gouge from the fault plane and soil from active fault trenches is a crucial step in obtaining fault activity, geochronological, and dynamic parameters.

[0003] In the study of active fault chronology, optically stimulated luminescence (OSL) dating determines the last time a mineral (such as quartz or feldspar) was exposed to sunlight by measuring the radiant energy stored in its crystals. When a mineral is exposed to sunlight or strong light, the stored energy is "reset" (signal reset). However, if the sample is exposed to light again after sampling, this original signal will be destroyed, leading to inaccurate dating results. Traditional sampling methods for active fault detection typically involve geologists taking multiple samples along a predetermined direction at night using sampling knives or sampling drills. This method is inefficient and hinders rapid stratification sampling. Furthermore, working at night poses risks to the safety of geologists and compromises the accuracy of sampling points.

[0004] Therefore, there is an urgent need for a device that can perform safe, accurate, and efficient sampling during the day, while also enabling light-proof drilling and simultaneous light-proof packaging of the samples. This would allow for precise localization while further improving the efficiency of live tomographic sampling and the accuracy of sample analysis and testing. Summary of the Invention

[0005] The purpose of this invention is to provide a sampling device for detecting active faults for geological disaster prevention and control, aiming to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides an active fault detection and sampling device for geological disaster prevention and control, comprising:

[0007] Support base;

[0008] A lifting mechanism is mounted on the support base;

[0009] A flipping mechanism is provided on the lifting end of the lifting mechanism;

[0010] A first mounting plate is disposed on the rotating end of the flipping mechanism. A first motor is fixedly mounted on the first mounting plate. A plurality of elastic mechanisms are circumferentially fixedly connected to the output shaft of the first motor. A sampling cylinder and a cap are detachably connected to the elastic mechanism. The sampling cylinder and the cap are detachably connected to each other. A magnetic attractor is rotatably connected to the side wall of the sampling cylinder.

[0011] A second mounting plate is fixedly connected to the first mounting plate. A first electric actuator is fixedly connected to the second mounting plate. An electromagnetic base is fixedly connected to the output end of the first electric actuator. The electromagnetic base is used to attract the magnetic body.

[0012] A light shield is detachably connected to the flipping mechanism, and the light shield can provide light protection during the sampling process of the sampling tube.

[0013] Optionally, the resilient mechanism includes:

[0014] The first spring rod has its fixed end fixedly connected to the output shaft of the first motor.

[0015] The second spring rod has its fixed end fixedly connected to the telescopic end of the first spring rod. A fourth motor is fixedly installed on the telescopic end of the second spring rod. The fourth motor is detachably connected to the sampling cylinder. The telescopic direction of the second spring rod is parallel to the output direction of the first electric push rod and perpendicular to the telescopic direction of the first spring rod.

[0016] Optionally, the output end of the fourth motor is fixedly connected to a first threaded post, and the end of the sampling cylinder is provided with a threaded groove, wherein the first threaded post and the threaded groove are threadedly engaged.

[0017] Optionally, a connecting plate is fixedly connected to the fixed end of the first spring rod, a threaded ring is fixedly connected to the connecting plate, and a second threaded post is connected to the cover, the second threaded post being threadedly engaged with the threaded ring.

[0018] Optionally, the second threaded post is connected to the cap by a plurality of third spring rods, a conical block is fixedly connected to the cap, the sampling cylinder opening is a conical groove, and the conical block is parallel to the conical groove.

[0019] Optionally, a rotating rod is rotatably connected to the second mounting plate. The rotating rod is parallel to the output direction of the first electric actuator. The rotating rod has a connected spiral groove and a straight groove. The straight groove is located at the end of the spiral groove away from the second mounting plate. A sliding ring is slidably fitted on the rotating rod. The sliding ring is slidably fitted with the spiral groove and the straight groove through a guide block. The sliding ring is fixedly connected to the electromagnetic base. A soil-pulling rod is fixedly connected to the end of the rotating rod away from the second mounting plate.

[0020] Optionally, the lifting mechanism includes:

[0021] The mounting bracket is fixedly connected to the support base;

[0022] The second motor is fixedly mounted on the mounting bracket;

[0023] The lead screw assembly is connected to the output shaft of the second motor, and the sliding nut on the lead screw assembly is connected to the flipping mechanism.

[0024] Optionally, the flipping mechanism includes:

[0025] A pair of third mounting plates are fixedly connected to the lifting end of the lifting mechanism, and the first mounting plate is rotatably connected between the pair of third mounting plates via a connecting rod;

[0026] A third motor is fixedly mounted on any of the third mounting plates, and the output shaft of the third motor is fixedly connected to the connecting rod.

[0027] Optionally, rotating parts are fixedly installed around the support base, and an electric hydraulic cylinder is fixedly connected to the rotating shaft of the rotating parts. An anti-slip pad is rotatably connected to the output end of the electric hydraulic cylinder, and a ground plug is fixedly connected to the anti-slip pad.

[0028] Optionally, multiple casters are fixedly installed on the bottom surface of the support base.

[0029] The present invention discloses the following technical effects:

[0030] This invention uses a lifting mechanism and a flipping mechanism to adjust the position and angle of the first mounting plate, and drives multiple elastic mechanisms to rotate via a first motor to adjust the position of multiple sampling cylinders, so that each sampling cylinder can correspond to the electromagnetic base in sequence, thereby realizing changes in sampling height and sampling angle and achieving efficient stratified sampling.

[0031] This invention utilizes the combination of an electromagnetic base and a magnetic chuck to attract the sampling cylinder onto the electromagnetic base and separate it from the cap. A first electric actuator then pushes the sampling cylinder into the soil layer for sampling. After the sampling cylinder resets, the electromagnetic base separates from the magnetic chuck, and the elastic force of the elastic mechanism returns the sampling cylinder to its original position, rejoining the cap. This achieves rapid sealing of the sampling cylinder and provides light protection for the soil sample inside, thereby improving the accuracy of chronological data analysis and testing of samples from active faults. Attached Figure Description

[0032] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 for Figure 1 A magnified view of part A in the image;

[0035] Figure 3 This is a schematic diagram of the flipping mechanism and light shield structure of the present invention;

[0036] Figure 4 This is a schematic diagram of the internal structure of the light shield of the present invention;

[0037] Figure 5 This is a schematic diagram of the rotating rod and sliding ring structure of the present invention;

[0038] Figure 6 This is a cross-sectional view of the sampling cylinder and cap of the present invention;

[0039] Figure 7 This is a schematic diagram of the sampling state at the bottom of the trench for the present invention.

[0040] In the picture:

[0041] 1. Support base; 11. Rotating component; 111. Mounting base; 112. Fifth motor; 12. Electric hydraulic cylinder; 13. Sliding pad; 14. Ground fixing component; 15. Casters; 16. Power supply;

[0042] 2. Lifting mechanism; 21. Mounting bracket; 22. Second motor; 23. Lead screw assembly; 231. Sliding nut;

[0043] 3. Tilting mechanism; 31. Third mounting plate; 32. Connecting rod; 33. Third motor;

[0044] 4. First mounting plate; 41. First motor; 42. Elastic mechanism; 421. First spring rod; 422. Second spring rod; 423. Fourth motor; 43. Sampling cylinder; 44. Cover; 45. Magnetic suction body; 46. First threaded post; 47. Threaded groove; 48. Connecting plate; 49. Threaded ring; 410. Second threaded post; 411. Third spring rod; 412. Conical block; 413. Conical groove;

[0045] 5. Second mounting plate; 51. First electric actuator; 52. Electromagnetic base; 521. Camera; 53. Rotating rod; 54. Spiral groove; 55. Straight groove; 56. Sliding ring; 58. Soil-removing rod; 59. Second electric actuator;

[0046] 6. Sunshade; 61. Opening; 62. Drawer; 63. Connecting shell; 64. Bolts and nuts;

[0047] 7. Strain gauge;

[0048] 8. Creep meter. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] Reference Figures 1-7 This invention provides a sampling device for detecting active faults for geological disaster prevention, comprising:

[0052] Support base 1;

[0053] The lifting mechanism 2 is mounted on the support base 1;

[0054] The flipping mechanism 3 is installed on the lifting end of the lifting mechanism 2;

[0055] The first mounting plate 4 is set on the rotating end of the flipping mechanism 3. The first motor 41 is fixedly mounted on the first mounting plate 4. The output shaft of the first motor 41 is circumferentially fixedly connected to a plurality of elastic mechanisms 42. The sampling cylinder 43 and the cap 44 are detachably connected to the elastic mechanism 42. The sampling cylinder 43 and the cap 44 are detachably connected to each other. A magnetic suction body 45 is rotatably connected to the side wall of the sampling cylinder 43.

[0056] The second mounting plate 5 is fixedly connected to the first mounting plate 4. A first electric push rod 51 is fixedly connected to the second mounting plate 5. An electromagnetic base 52 is fixedly connected to the output end of the first electric push rod 51. The electromagnetic base 52 is used to attract the magnetic body 45.

[0057] The light shield 6 is detachably connected to the flipping mechanism 3, and the light shield 6 can provide light protection for the sampling process of the sampling tube 43.

[0058] The lifting mechanism 2 and the flipping mechanism 3 work together to adjust the position and angle of the first mounting plate 4. The first motor 41 drives multiple elastic mechanisms 42 to rotate, adjusting the position of multiple sampling cylinders 43 so that each sampling cylinder 43 can correspond to the electromagnetic base 52 in sequence, thereby realizing the change of sampling height and sampling angle and achieving layered sampling.

[0059] Samples such as fault gouge, colluvial wedges, and sand veins need to be sealed and protected from light to prevent light from resetting mineral signals. The current method of protecting from light usually involves geologists sampling at night, which has many drawbacks, such as the personal safety of geologists and the accuracy of sampling points (at the expense of other aspects).

[0060] The electromagnetic base 52 and the magnetic chuck 45 work together to attract the sampling cylinder 43 onto the electromagnetic base 52 and separate it from the cap 44. The first electric actuator 51 then pushes the sampling cylinder 43 into the soil layer to take a sample. After the sampling cylinder 43 is reset, the electromagnetic base 52 and the magnetic chuck 45 separate, and the elastic force of the elastic mechanism 42 causes the sampling cylinder 43 to reset to the state of being combined with the cap 44, thus achieving rapid sealing of the sampling cylinder 43 and protecting the soil sample inside the sampling cylinder 43 from light.

[0061] The electromagnetic base 52 is a device that operates using electromagnetic principles. It contains an electromagnet that generates a magnetic field when an electric current passes through the conductor. By controlling the magnitude and direction of the current, the magnitude and direction of the magnetic field can be controlled, thereby attracting or repelling external objects. In practical applications, the electromagnetic base can achieve stable control of objects by controlling the current in the electromagnet.

[0062] The magnetic attractor 45 typically refers to a magnetic object, which can be a permanent magnet or an electromagnet. In the application of the electromagnetic base 52, the magnetic attractor 45 is mainly used to interact with the electromagnet to achieve the attraction or fixation of the object. The polarity and strength of the magnetic attractor 45 directly affect the working effect and stability of the electromagnetic base 52.

[0063] Furthermore, the sampling tube 43 and the cap 44 are opaque structures, such as opaque steel structures, or opaque aluminum foil is applied to the inner wall.

[0064] In one embodiment of the present invention, the elastic mechanism 42 includes:

[0065] The first spring rod 421 has its fixed end fixedly connected to the output shaft of the first motor 41;

[0066] The fixed end of the second spring rod 422 is fixedly connected to the telescopic end of the first spring rod 421. The telescopic end of the second spring rod 422 is fixedly installed with a fourth motor 423. The fourth motor 423 is detachably connected to the sampling cylinder 43. The telescopic direction of the second spring rod 422 is parallel to the output direction of the first electric push rod 51 and perpendicular to the telescopic direction of the first spring rod 421.

[0067] When the electromagnetic base 52 attracts the magnetic body 45, the extension end of the first spring rod 421 is output. When the first electric push rod 51 pushes the sampling cylinder 43 to move, the extension end of the second spring rod 422 is output. When the sampling cylinder 43 is reset, the first spring rod 421 and the second spring rod 422 enable the sampling cylinder 43 to automatically reset to be combined with the cover 44 after losing the external force of the electromagnetic base 52 and the first electric push rod 51.

[0068] Meanwhile, since the magnetic accumulator 45 and the sampling cylinder 43 are rotatably connected, the fourth motor 423 drives the sampling cylinder 43 to rotate as the sampling cylinder 43 drills into the soil, thereby making the sampling cylinder 43 rotate into the soil.

[0069] In one embodiment of the present invention, the output end of the fourth motor 423 is fixedly connected to the first threaded post 46, and the end of the sampling cylinder 43 is provided with a threaded groove 47, and the first threaded post 46 and the threaded groove 47 are threadedly engaged.

[0070] The first threaded post 46 and the threaded groove 47 facilitate the disassembly and assembly of the sampling cylinder 43, and facilitate the replacement of the sampling cylinder 43.

[0071] In one embodiment of the present invention, a connecting plate 48 is fixedly connected to the fixed end of the first spring rod 421, a threaded ring 49 is fixedly connected to the connecting plate 48, and a second threaded post 410 is connected to the cover 44, the second threaded post 410 and the threaded ring 49 are threadedly engaged.

[0072] The engagement of the second threaded post 410 and the threaded ring 49 facilitates the disassembly and assembly of the cover 44.

[0073] In one embodiment of the present invention, the second threaded post 410 is connected to the cover 44 by a plurality of third spring rods 411, a conical block 412 is fixedly connected to the cover 44, and the sampling cylinder 43 has an opening of a conical groove 413, with the conical block 412 and the conical groove 413 being parallel.

[0074] Through the cooperation of the conical block 412 and the conical groove 413, and the elastic extension and retraction of multiple third spring rods 411, the conical groove 413 at the opening of the sampling cylinder 43 can automatically close or separate from the conical block 412 on the cap 44 when the sampling cylinder 43 moves or resets under force.

[0075] Specifically, due to the inclined surface design, when the conical groove 413 on the sampling cylinder 43 and the conical block 412 on the cap 44 connected by the third spring rod 411 make inclined surface contact, a pushing component force will be generated after the outer wall of the sampling cylinder 43 or the side wall of the conical groove 413 contacts the conical block 412 during the insertion or separation process. This causes the conical block 412 to be compressed and moved backward. After losing this component force, the third spring rod 411 pushes the conical block 412 to reset, thereby realizing the closed connection between the sampling cylinder 43 and the cap 44.

[0076] In one embodiment of the present invention, a rotating rod 53 is rotatably connected to the second mounting plate 5. The rotating rod 53 is parallel to the output direction of the first electric actuator 51. A spiral groove 54 and a straight groove 55 are connected on the rotating rod 53. The straight groove 55 is located at the end of the spiral groove 54 away from the second mounting plate 5. A sliding ring 56 is slidably fitted on the rotating rod 53. The sliding ring 56 is slidably fitted with the spiral groove 54 and the straight groove 55 through a guide block. The sliding ring 56 is fixedly connected to the electromagnetic base 52. A soil-pulling rod 58 is fixedly connected to the end of the rotating rod 53 away from the second mounting plate 5.

[0077] To avoid the contaminated surface soil affecting subsequent testing and analysis results, during sampling, the soil-pulling rod 58 contacts and penetrates the soil layer. When the first electric actuator 51 pushes the electromagnetic base 52 to move, the sliding ring 56 cooperates with the spiral groove 54 to make the soil-pulling rod 58 rotate one or more times to clean the surface soil. When the sliding ring 56 slides to the straight groove 55 stage, the soil-pulling rod 58 and the opening of the sampling cylinder 43 are misaligned and the soil-pulling rod 58 remains stationary, and the sampling cylinder 43 penetrates the soil layer to perform the sampling operation.

[0078] The principle by which the slider and the spiral groove 54 on the rotating rod 53 cooperate to make the rotating rod 53 rotate is as follows: When the slider moves in the spiral groove 54, due to the inclined surface design of the spiral groove 54, the slider will be subjected to a force along the tangent of the spiral groove, which will cause the rotating rod 53 to rotate.

[0079] Furthermore, the soil-moving rod 58 is fixedly connected to the rotating rod 53 via the second electric actuator 59, and the extension and retraction of the second electric actuator 59 can adjust the position of the soil-moving rod 58.

[0080] In one embodiment of the present invention, the lifting mechanism 2 includes:

[0081] Mounting bracket 21 is fixedly connected to support base 1;

[0082] The second motor 22 is fixedly mounted on the mounting bracket 21;

[0083] The lead screw assembly 23 is connected to the output shaft of the second motor 22, and the sliding nut 231 on the lead screw assembly 23 is connected to the flipping mechanism 3.

[0084] The second motor 22 drives the lead screw assembly 23 to move the sliding nut 231 in the height direction, thereby driving the flipping mechanism and multiple sampling cylinders 43 to adjust their height, achieving the effect of stratified sampling.

[0085] In one embodiment of the present invention, the flipping mechanism 3 includes:

[0086] A pair of third mounting plates 31 are fixedly connected to the lifting end of the lifting mechanism 2, and the first mounting plate 4 is rotatably connected between the pair of third mounting plates 31 via a connecting rod 32;

[0087] The third motor 33 is fixedly installed on any third mounting plate 31, and the output shaft of the third motor 33 is fixedly connected to the connecting rod 32.

[0088] The first mounting plate 4 is rotated by the third motor 33, so that the sampling cylinder 43 faces the side wall or bottom of the trench, thus enabling side wall sampling and bottom sampling.

[0089] In one embodiment of the present invention, rotating parts 11 are fixedly installed around the support base 1. An electric hydraulic cylinder 12 is fixedly connected to the rotating shaft of the rotating parts 11. An anti-slip pad 13 is rotatably connected to the output end of the electric hydraulic cylinder 12. A ground plug fixing part 14 is fixedly connected to the anti-slip pad 13.

[0090] The rotating component 11 includes a mounting base 111 and a fifth motor 112. The output shaft of the fifth motor 112 is connected to the side wall of the electric hydraulic cylinder 12. The rotation of the fifth motor 112 drives the electric hydraulic cylinder 12 to adjust the angle.

[0091] The angle of the electric hydraulic cylinder 12 is adjusted by the rotating component 11, and the electric hydraulic cylinder 12 pushes the anti-slip pad 13 to contact the bottom surface, so that the ground fixing component 14 on the anti-slip pad 13 is inserted into the soil layer, improving the stability of the sampling device. The ground fixing component 14 is usually made of chrome-plated metal material, which has excellent anti-corrosion and anti-rust properties. It is inserted into the soil by rotating the thread, providing stable support and limit.

[0092] In one embodiment of the present invention, a plurality of casters 15 are fixedly installed on the bottom surface of the support base 1.

[0093] Furthermore, a camera 521 is provided on the electromagnetic base 52 for recording the detailed structural features of the sampling location.

[0094] Furthermore, the mounting frame 21 is also equipped with a strain gauge 7 and a creep meter 8. The sampling device is pre-positioned near the active fault (or presumed active fault) in the field. When a slight slip occurs, the information is captured immediately, and the fault creep rate is directly measured. When the creep rate or creep amount is detected to exceed a certain threshold, an early warning signal is issued, and the sampling device quickly performs stratified sampling.

[0095] Furthermore, the light shield 6 has an opening 61 to allow the soil-removing rod 58 and the sampling tube 43 to pass. The bottom of the light shield 6 is equipped with a drawer 62 so that the soil that falls into the light shield 6 when the soil-removing rod 58 peels off the surface soil can be easily poured out. At the same time, it can also serve as a sample receiving (taking) device when drilling soil that does not require high light protection.

[0096] Furthermore, the light shield 6 has a split structure, and connecting shells 63 are distributed at the joints. The connecting shells 63 are connected to the connecting rod 32 by bolts and nuts 64.

[0097] Furthermore, a power supply 16 is provided on the support base 1, which is used to supply power to various electrical components in the device.

[0098] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0099] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A live fault detection sampling device for geological disaster prevention, characterized in that, Include: Support base (1); Lifting mechanism (2) provided on the support base (1); Turnover mechanism (3) provided on the lifting end of the lifting mechanism (2); The first mounting plate (4) is provided on the rotating end of the turnover mechanism (3), the first motor (41) is fixedly installed on the first mounting plate (4), a plurality of elastic mechanisms (42) are fixedly connected on the output shaft of the first motor (41), the sampling cylinder (43) and the cover (44) are detachably connected on the elastic mechanism (42), the sampling cylinder (43) and the cover (44) are detachably connected, the magnetic body (45) is rotatably connected on the side wall of the sampling cylinder (43); The second mounting plate (5) is fixedly connected on the first mounting plate (4), the first electric push rod (51) is fixedly connected on the second mounting plate (5), the output end of the first electric push rod (51) is fixedly connected with the electromagnetic seat (52), and the electromagnetic seat (52) is used for being attracted with the magnetic body (45); The light shield (6) is detachably connected with the turnover mechanism (3), and the light shield (6) can avoid light protection during the sampling process of the sampling cylinder (43).

2. The active fault detection and sampling device for geological disaster prevention according to claim 1, characterized in that, The elastic mechanism (42) comprises: The first spring rod (421) is fixedly connected with the output shaft of the first motor (41); The second spring rod (422) is fixedly connected with the telescopic end of the first spring rod (421), the fourth motor (423) is fixedly installed on the telescopic end of the second spring rod (422), the fourth motor (423) is detachably connected with the sampling cylinder (43), and the telescopic direction of the second spring rod (422) is parallel to the output direction of the first electric push rod (51) and perpendicular to the telescopic direction of the first spring rod (421). 3.The active fault detection and sampling device for geological disaster prevention according to claim 2, characterized in that, The output end of the fourth motor (423) is fixedly connected with the first threaded column (46), the end of the sampling cylinder (43) is provided with a threaded groove (47), and the first threaded column (46) is screwed with the threaded groove (47).

4. The active fault detection and sampling device for geological disaster prevention according to claim 2, characterized in that, The fixed end of the first spring rod (421) is fixedly connected with the connecting plate (48), the threaded ring (49) is fixedly connected on the connecting plate (48), the second threaded column (410) is connected on the cover (44), and the second threaded column (410) is screwed with the threaded ring (49).

5. The active fault detection and sampling device for geological disaster prevention according to claim 4, characterized in that, The second threaded column (410) and the cover (44) are connected through a plurality of third spring rods (411), the tapered block (412) is fixedly connected on the cover (44), the opening of the sampling cylinder (43) is a tapered groove (413), and the tapered block (412) is parallel to the tapered groove (413).

6. The active fault detection and sampling device for geological disaster prevention according to claim 1, characterized in that, A rotating rod (53) is rotatably connected to the second mounting plate (5), the rotating rod (53) is parallel to the output direction of the first electric push rod (51), a spiral groove (54) and a straight groove (55) are arranged on the rotating rod (53) and are connected, the straight groove (55) is located at one end of the spiral groove (54) away from the second mounting plate (5), a sliding ring (56) is slidably connected to the rotating rod (53), the sliding ring (56) is slidably connected with the spiral groove (54) and the straight groove (55) through a guide block, the sliding ring (56) is fixedly connected with the electromagnetic base (52), and the end of the rotating rod (53) away from the second mounting plate (5) is fixedly connected with a soil shoveling rod (58).

7. The active fault detection and sampling device for geological disaster prevention according to claim 1, characterized in that, The lifting mechanism (2) comprises: a mounting frame (21) fixedly connected to the support base (1); a second motor (22) fixedly installed on the mounting frame (21); a screw rod assembly (23) in transmission connection with the output shaft of the second motor (22), and a sliding nut (231) on the screw rod assembly (23) connected with the turnover mechanism (3). 8.The active fault detection and sampling device for geological disaster prevention of claim 1, wherein, The turnover mechanism (3) comprises: a pair of third mounting plates (31) fixedly connected with the lifting end of the lifting mechanism (2), and the first mounting plate (4) rotatably connected between the pair of third mounting plates (31) through a connecting rod (32); a third motor (33) fixedly installed on any third mounting plate (31), and the output shaft of the third motor (33) fixedly connected with the connecting rod (32). 9.The active fault detection and sampling device for geological disaster prevention of claim 1, wherein, A rotating member (11) is fixedly installed around the support base (1), an electric hydraulic cylinder (12) is fixedly connected to the rotating shaft of the rotating member (11), a non-slip base plate (13) is rotatably connected to the output end of the electric hydraulic cylinder (12), and a ground insertion fixing member (14) is fixedly connected to the non-slip base plate (13). 10.The active fault detection and sampling device for geological disaster prevention according to claim 1, wherein, A plurality of universal wheels (15) are fixedly installed on the bottom surface of the support base (1).

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