Geological content sampling device for geological surveying and mapping

Abstract

The invention discloses a geological content sampling device for geological surveying and mapping, and relates to the field of geological sampling, the geological content sampling device comprises a working platform and a sampling barrel, the inner top of the sampling barrel is provided with an annular scraper, the upper surface of the annular scraper is fixedly provided with four guide rods, and the top ends of the four guide rods penetrate through the top wall of the sampling barrel, extend to the outside and are fixedly provided with annular plates; a driving assembly is arranged at the top of the sampling barrel, the driving assembly is used for controlling the annular plate to vertically move so as to push the annular scraper to treat the loose outer layer of the sampled soil, placing grooves are symmetrically formed in the bottom of the inner wall of the sampling barrel, and arc-shaped clamping plates are mounted in the two placing grooves. Loose outer layer soil formed by rotating friction can be accurately scraped through the passivated inclined cutting edge, interference of a remodeling area on the authenticity of the sample is avoided, the finally obtained sample can truly reflect the actual condition of an underground soil layer, and reliable data support is provided for geological analysis.

Description

Technical Field

[0001] This invention relates to the technical field of geological sampling, specifically a geological content sampling device for geological mapping. Background Technology

[0002] In the specific implementation of geological surveying and mining, in order to obtain accurate geological information, technicians usually use a specially designed geological content borehole sampling device. This device can go deep underground to accurately sample different soil layers in the geological structure. In this way, the physical and chemical properties and composition of the soil layers can be effectively obtained, providing reliable data support for subsequent geological analysis and resource extraction.

[0003] A geological content sampling device for geological mapping described in the prior art includes a support plate, support legs installed at four ends below the support plate, and a sampling mechanism installed in the middle of the support plate. The sampling mechanism includes a sampling cylinder, which is rotatably mounted on the support plate and can move up and down along the support plate. The top of the sampling cylinder is located above the support plate, and the bottom of the sampling cylinder is located below the support plate.

[0004] While the aforementioned technology can automatically move downwards to sample the soil without human intervention, reducing the labor intensity during work, the rotational motion when driving the sampling tube to rotate downwards to drill for sampling generates continuous friction and shear forces between the soil particles and the inner wall of the sampling tube. This shearing action can damage the original structure of the soil, especially forming a remodeling zone in the outer layer of the sample, resulting in a loose outer soil structure. This, in turn, affects the originality and representativeness of the sample taken, and cannot accurately reflect the true condition of the underground soil layer. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a geological content sampling device for geological mapping, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A geological content sampling device for geological mapping includes a working platform and a sampling tube. An opening is provided at the center of the working platform, and receiving plates are symmetrically arranged on the platform above the opening. The sampling tube is located directly above the two receiving plates. An annular scraper is provided at the top inner surface of the sampling tube. Four guide rods are fixed to the upper surface of the annular scraper, and the top ends of the four guide rods extend through the top wall of the sampling tube to the outside and are fixed with an annular plate. A driving assembly is provided at the top of the sampling tube to control the vertical movement of the annular plate, thereby pushing the annular scraper to process the loose outer layer of the sampled soil. Placement slots are symmetrically provided at the bottom of the inner wall of the sampling tube, and arc-shaped clamps are installed in both placement slots. A through-hole is provided in the tube wall of the sampling tube at both placement slots. Side plates are fixed to both sides of the upper surface of the working platform, and a moving assembly is provided between the two side plates to control the opening and closing movement of the two receiving plates.

[0007] Specifically, the driving assembly includes a stepper motor and two symmetrically arranged lead screws. The top ends of both lead screws are rotatably connected to the lower surface of an annular plate. The top wall of the sampling cylinder has holes at the two lead screws. The top of the sampling cylinder is provided with a sleeve above the two holes. The bottom ends of both lead screws are inserted into the sleeves and are threadedly engaged. The top of the outer wall of both sleeves is fitted with a limiting plate. The opposite sides of the two limiting plates are fixed with baffles. The bottom ends of the two baffles are fixedly connected to the top of the sampling cylinder.

[0008] Specifically, in this technical solution, a transmission wheel is fixedly fitted on the bottom of the outer wall of each of the two sleeves, and the two transmission wheels are connected by a transmission chain. The two sleeves are connected to the bearing at the contact point with the limiting plate. A driven gear is fixedly fitted on the outer wall of one sleeve above the transmission wheel. A protective shell is provided above the top of the sampling cylinder.

[0009] Specifically, in this technical solution, a drive motor is installed inside the protective shell by screws. The output end of the drive motor passes through the bottom wall of the protective shell and is fixed to the center bolt at the top of the sampling cylinder. The diameter of the two transmission wheels is larger than the diameter of the output end of the drive motor. A mounting groove is opened on one side of the top of the sampling cylinder. The stepper motor is fixed in the mounting groove by screws. A drive gear is fixedly sleeved on the outer wall of the output end of the stepper motor. The tooth surfaces of the drive gear and the driven gear are meshed and connected.

[0010] Specifically, in this technical solution, a gantry frame is fixed on the upper surface of the work platform, and a hydraulic cylinder is fixed in the center of the lower surface of the gantry frame plate by bolts. The output end of the hydraulic cylinder is fixedly connected to the top of the protective shell by bolts. Pressure sensors are symmetrically embedded in the lower surface of the gantry frame plate, and the upper surface of the annular plate cooperates with two pressure sensors.

[0011] Specifically, in this technical solution, the bottom blade of the annular scraper is designed with an inclination and is blunted.

[0012] Specifically, in this technical solution, an electric telescopic cylinder is installed on the top of the side of the two side plates near the sampling cylinder by screws. The telescopic ends of the two electric telescopic cylinders are fixed with magnetic push blocks that match the perforation. The end faces of the two magnetic push blocks are matched with the outer wall of the arc-shaped clamping plate.

[0013] Specifically, in this technical solution, both receiving plates are semi-circular in shape, and both receiving plates are provided with arc-shaped through grooves for the outer soil to fall off. The lower surfaces of both receiving plates are in sliding contact with the upper surface of the working platform.

[0014] Specifically, in this technical solution, the diameters of both receiving plates are larger than the aperture of the opening, and the aperture of the opening is larger than the outer diameter of the sampling cylinder.

[0015] Specifically, in this technical solution, the moving component includes a bidirectional threaded rod and a sliding rod. Moving blocks and sliding blocks are respectively fixed to the outer walls of the two receiving plates. Both moving blocks are sleeved on the bidirectional threaded rod and connected by a threaded connection. Both sliding blocks are slidably sleeved on the sliding rod. Both ends of the sliding rod are fixedly connected to the side plates. Both ends of the bidirectional threaded rod are rotatably connected to the side plates. A reduction motor is installed on the outer wall of one of the side plates via screws. The output end of the reduction motor passes through the side plate and is connected to the flange of the bidirectional threaded rod.

[0016] In summary, the present invention has the following advantages: through the synergistic effect of the annular scraper at the top and the arc-shaped clamp at the bottom of the sampling tube, the sample damage caused by rotational sampling is effectively prevented. After the initial sampling is completed, the drive component drives the annular scraper to move smoothly down along the inner wall of the sampling tube. Its blunted inclined blade can accurately scrape off the loose outer soil layer formed by rotational friction, avoiding interference from the remodeling area on the authenticity of the sample. At the same time, the arc-shaped clamp is driven to shrink towards the center by the magnetic push block, forming a ring-shaped fixation of the original soil sample from the bottom. This not only preserves the original physical structure and mechanical properties of the soil, but also ensures that the sample will not fall off during the transfer process. The final sample can truly reflect the actual condition of the underground soil layer, providing reliable data support for geological analysis. Furthermore, the loose soil scraped off can be directly discharged through the arc-shaped channel, avoiding accumulation at the bottom of the sampling tube or on the work platform, eliminating the need for additional manual cleaning and simplifying the field operation process; while the receiving plate driven by the bidirectional threaded rod can flexibly open and close according to the lifting and lowering state of the sampling tube, providing stable support for closing during sampling, and opening after sampling facilitates sample removal and device storage, greatly reducing the intensity of operation and improving the overall work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 This is a schematic diagram of the receiving plate and moving component structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the sampling cylinder of the present invention in a frontal cross-section. Figure 4 This is a schematic diagram of the orthogonal axonometric structure of the sampling cylinder of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the orthogonal structure of the annular scraper and drive assembly of the present invention; Figure 7 This is a schematic diagram of the oblique isometric structure of the drive component of the present invention.

[0018] Attached Figure Descriptions: 1. Working platform; 101. Gantry frame; 102. Hydraulic cylinder; 103. Protective shell; 104. Drive motor; 105. Opening; 106. Side plate; 2. Sampling cylinder; 201. Mounting slot; 202. Placement slot; 203. Perforation; 204. Arc-shaped clamp; 205. Baffle; 206. Hole; 3. Receiving plate; 301. Arc-shaped through groove; 4. Moving assembly; 401. Moving block; 40 2. Bidirectional threaded rod; 403. Slide rod; 404. Gear motor; 405. Slider; 5. Annular scraper; 501. Guide rod; 502. Annular plate; 6. Drive assembly; 601. Stepper motor; 602. Drive gear; 603. Sleeve; 6031. Transmission wheel; 604. Transmission chain; 605. Limiting plate; 606. Driven gear; 607. Lead screw; 7. Electric telescopic cylinder; 701. Magnetic push block. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The embodiments of the present invention will now be described.

[0021] It should be noted that the hydraulic cylinder 102, drive motor 104, stepper motor 601, geared motor 404 and electric telescopic cylinder 7 involved in this invention are all electrically connected to an external control circuit and power supply in actual applications. The automated collaborative work of each component is realized through the external control circuit. The specific circuit connection method is within the scope of existing technology and will not be described in detail here.

[0022] In this embodiment, please refer to Figure 1 - Figure 7 As shown, a geological content sampling device for geological mapping includes a working platform 1 and a sampling cylinder 2. An opening 105 is provided at the center of the working platform 1. A receiving plate 3 is symmetrically arranged on the working platform 1 at the opening 105. Both receiving plates 3 are semi-circular and their diameters are larger than the opening diameter 105. Both receiving plates 3 have arc-shaped grooves 301 for the outer soil to fall off. The lower surfaces of both receiving plates 3 are in sliding contact with the upper surface of the working platform 1. The opening diameter 105 is larger than the outer diameter of the sampling cylinder 2. The sampling cylinder 2 is located directly above the two receiving plates 3. An annular scraper 5 is provided at the inner top of the sampling cylinder 2. The bottom blade of the annular scraper 5 is designed with an inclination and is blunted. Four guide rods 501 are fixed on the upper surface of the annular scraper 5. The top ends of the four guide rods 501 extend through the top wall of the sampling cylinder 2 to the outside and are fixed with annular plates 502. The top of the sampling cylinder 2 is equipped with a drive assembly 6, which is used to control the vertical movement of the annular plate 502 and thus push the annular scraper 5 to process the loose outer layer of the sampled soil. The bottom of the inner wall of the sampling cylinder 2 is symmetrically provided with placement grooves 202. An arc-shaped clamping plate 204 is installed in each of the two placement grooves 202. The cylinder wall of the sampling cylinder 2 is provided with a through hole 203 at the two placement grooves 202. The top of the side plate 106 near the sampling cylinder 2 is equipped with an electric telescopic cylinder 7 by screws. The telescopic ends of the two electric telescopic cylinders 7 are fixed with magnetic push blocks 701 that match the through holes 203. The end faces of the two magnetic push blocks 701 are engaged with the outer wall of the arc-shaped clamping plate 204. Side plates 106 are fixed on both sides of the upper surface of the working platform 1. A moving component 4 is provided between the two side plates 106. The moving component 4 is used to control the opening and closing movement of the two receiving plates 3. A protective shell 103 is provided above the top of the sampling cylinder 2. A gantry frame 101 is fixed on the upper surface of the working platform 1. A hydraulic cylinder 102 is fixed in the center of the lower surface of the frame plate of the gantry frame 101 by bolts. The output end of the hydraulic cylinder 102 is fixedly connected to the top of the protective shell 103 by bolts. Pressure sensors are symmetrically embedded in the lower surface of the frame plate of the gantry frame 101. The upper surface of the annular plate 502 is matched with two pressure sensors.

[0023] In order to obtain accurate geological information during geological surveying, the staff first placed the work platform 1 stably in the geological area to be sampled. The external controller started the reduction motor 404 in the moving component 4 to control the two originally closed receiving plates 3 to move to both sides, exposing the opening 105. Then the drive motor 104 and the hydraulic cylinder 102 were started. The output end of the drive motor 104 drove the sampling cylinder 2 to rotate, and the output end of the hydraulic cylinder 102 pushed the protective shell 103 to move downward. The protective shell 103 drove the sampling cylinder 2 to descend synchronously, so that the bottom of the sampling cylinder 2 gradually contacted the geological surface. During the downward movement of the sampling cylinder 2, the drive component 6 was also driven to move downward synchronously. The sampling cylinder 2 gradually drilled downward to collect samples during the rotation, and the soil entered the interior of the sampling cylinder 2. After the initial sampling is completed, the hydraulic cylinder 102 retracts, causing the protective shell 103 and the sampling cylinder 2 to move upwards until the sampling cylinder 2 is completely detached from the soil and returns to the working platform 1 through the opening 105. At this time, the annular plate 502 contacts the top lower surface of the gantry frame 101. After the pressure sensor detects the pressure, it sends a signal to the controller to start the moving component 4 and the drive component 6. The moving component 4 re-controls the two receiving plates 3 to reset and close, while the drive component 6 controls the annular plate 502 to move downwards. The annular plate 502 is pushed by the guide rod 501. The annular scraper 5 moves downward, and the obtuse, inclined blade at the bottom of the annular scraper 5 precisely scrapes away the loose outer layer of soil formed by rotational friction. The scraped loose soil is directly discharged through the arc-shaped channel 301 on the receiving plate 3. After the annular scraper 5 completes its scraping action, the controller controls two electric telescopic cylinders 7. The telescopic ends of the electric telescopic cylinders 7 push the magnetic push block 701 to move towards the center of the sampling cylinder 2. The magnetic push block 701 pushes the arc-shaped clamping plate 204 to form a ring-shaped fixation on the original soil sample from the bottom, ensuring that the sample will not fall off during the transfer process, thus completing the entire sampling process. This effectively overcomes the sample damage caused by rotational sampling. After the initial sampling is completed, the annular scraper 5 moves downward, and the obscured inclined blade can accurately scrape away the loose outer soil layer formed by rotational friction, avoiding interference from the remodeling area on the authenticity of the sample. The final sample can truly reflect the actual condition of the underground soil layer, providing reliable data support for geological analysis.

[0024] Please see Figure 2As shown, the moving component 4 includes a bidirectional threaded rod 402 and a sliding rod 403. Moving blocks 401 and sliders 405 are fixed to the outer walls of the two receiving plates 3 respectively. The two moving blocks 401 are both sleeved on the bidirectional threaded rod 402 and are threadedly engaged. The two sliders 405 are both slidably sleeved on the sliding rod 403. Both ends of the sliding rod 403 are fixedly connected to the side plate 106. Both ends of the bidirectional threaded rod 402 are rotatably connected to the side plate 106. A reduction motor 404 is installed on the outer wall of one side plate 106 by screws. The output end of the reduction motor 404 passes through the side plate 106 and is connected to the flange of the bidirectional threaded rod 402.

[0025] When it is necessary to control the opening and closing movement of the receiving plate 3, the reduction motor 404 is started. The output end of the reduction motor 404 drives the bidirectional threaded rod 402 to rotate. Since the two moving blocks 401 are both sleeved on the bidirectional threaded rod 402 and are threadedly engaged, the two moving blocks 401 will move towards or away from each other along the bidirectional threaded rod 402 during the rotation of the bidirectional threaded rod 402, thereby driving the two receiving plates 3 to open and close. The cooperation between the slider 405 and the slide rod 403 plays a guiding and stabilizing role, ensuring the stability of the receiving plate 3 during the movement, and providing convenience for the lifting and lowering of the sampling cylinder 2 and the removal of the sample.

[0026] Please see Figure 6 and Figure 7 As shown, the drive assembly 6 includes a stepper motor 601 and two symmetrically arranged lead screws 607. The top ends of both lead screws 607 are rotatably connected to the lower surface of the annular plate 502. The top wall of the sampling cylinder 2 has holes 206 at the two lead screws 607. The top of the sampling cylinder 2 is provided with sleeves 603 above the two holes 206. The bottom ends of both lead screws 607 are inserted into the sleeves 603 and are threadedly engaged. The top of the outer wall of both sleeves 603 is fitted with a limiting plate. 605, baffles 205 are fixed on opposite sides of the two limiting plates 605, the bottom ends of the two baffles 205 are fixedly connected to the top end of the sampling cylinder 2, and transmission wheels 6031 are fixedly fitted on the bottom of the outer walls of the two sleeves 603. The two transmission wheels 6031 are connected by a transmission chain 604. The two sleeves 603 are connected to the limiting plates 605 by bearings at the contact points. A driven gear 606 is fixedly fitted on the outer wall of one sleeve 603 above the transmission wheel 6031. Inside the protective shell 103, a drive motor 104 is installed by screws. The output end of the drive motor 104 passes through the bottom wall of the protective shell 103 and is fixed to the center bolt at the top of the sampling cylinder 2. The diameter of the two transmission wheels 6031 is larger than the diameter of the output end of the drive motor 104. A mounting groove 201 is provided on one side of the top of the sampling cylinder 2. The stepper motor 601 is fixed in the mounting groove 201 by screws. The outer wall of the output end of the stepper motor 601 is fixedly fitted with a drive gear 602. The drive gear 602 meshes with the tooth surface of the driven gear 606.

[0027] When it is necessary to control the annular scraper 5 to move downwards and scrape away the loose outer layer of soil, the stepper motor 601 is started. The output end of the stepper motor 601 drives the drive gear 602 to rotate. Since the drive gear 602 is meshed with the driven gear 606, the driven gear 606 will rotate accordingly. The driven gear 606 drives the sleeve 603 fixedly fitted to it to rotate. Through the transmission wheel 6031 and the transmission chain 604, the other sleeve 603 will also rotate synchronously. When the two sleeves 603 rotate, because the sleeves 603 are connected by… The bearing is rotatably connected to the limiting plate 605, which causes the two lead screws 607 to move downward along the sleeve 603 and through the hole 206, driving the annular plate 502 to move downward in the vertical direction. The annular plate 502 pushes the annular scraper 5 downward through the guide rod 501, realizing the operation of accurately scraping the loose outer layer of soil. During the downward movement, the loose part of the outer layer of soil in the sampling cylinder 2 formed by rotational friction is scraped off. The scraped loose soil falls through the arc-shaped through groove 301 of the receiving plate 3 to the opening 105 of the working platform 1 and is finally discharged outside the device.

[0028] The working principle of this invention is as follows: In order to obtain accurate geological information during geological surveying, the staff first places the work platform 1 stably on the geological area to be sampled. The reduction motor 404 in the moving component 4 is started by the external controller. The output end of the reduction motor 404 drives the bidirectional threaded rod 402 to rotate. Since the two moving blocks 401 are both sleeved on the bidirectional threaded rod 402 and are threadedly connected, the two moving blocks 401 will move in opposite directions along the bidirectional threaded rod 402 during the rotation of the bidirectional threaded rod 402, thereby driving the two receiving plates 3 to move to both sides, exposing the opening 105. Then the drive motor 104 and the hydraulic cylinder 102 are started. The output end of the drive motor 104 drives the sampling cylinder 2 to rotate. The output end of the hydraulic cylinder 102 pushes the protective shell 103 to move downward. The protective shell 103 drives the sampling cylinder 2 to descend synchronously, so that the bottom of the sampling cylinder 2 gradually contacts the geological surface. During the downward movement of the sampling cylinder 2, the drive component 6 will also move downward synchronously. The sampling cylinder 2 will gradually drill downward to collect samples during the rotation, and the soil will enter the interior of the sampling cylinder 2. After initial sampling, the hydraulic cylinder 102 retracts, moving the protective shell 103 and sampling cylinder 2 upwards until the sampling cylinder 2 completely detaches from the soil and returns to the working platform 1 through the opening 105. At this point, the annular plate 502 contacts the lower top surface of the gantry 101. After the pressure sensor detects the pressure, it sends a signal to the controller to start the reduction motor 404 and the stepper motor 601. The reduction motor 404 re-controls the two receiving plates 3 to reset and close, while the output end of the stepper motor 601 drives the drive gear 602 to rotate. Since the drive gear 602 and the driven gear 606 are meshed, the driven gear 606 will rotate accordingly. The driven gear 606 drives the sleeve 60 fixedly fitted to it. 3. Rotation: Through the transmission action of the transmission wheel 6031 and the transmission chain 604, the other sleeve 603 will also rotate synchronously. When the two sleeves 603 rotate, since the sleeves 603 are rotatably connected to the limiting plate 605 through the bearing, the two lead screws 607 will move downward along the sleeves 603 and pass through the hole 206, driving the annular plate 502 to move downward in the vertical direction. The annular plate 502 pushes the annular scraper 5 downward through the guide rod 501 to achieve the operation of accurately scraping the loose outer layer of soil. During the downward movement, the loose part formed by the rotation friction of the outer layer of soil in the sampling cylinder 2 is scraped off. The scraped loose soil falls through the arc-shaped through groove 301 of the receiving plate 3 to the opening 105 of the working platform 1 and is finally discharged outside the device. After the annular scraper 5 completes its scraping action, the controller controls two electric telescopic cylinders 7. The telescopic ends of the electric telescopic cylinders 7 push the magnetic pusher 701 to move towards the center of the sampling cylinder 2. The magnetic pusher 701 pushes the arc-shaped clamp 204 to form a ring-shaped fixation on the original soil sample from the bottom, ensuring that the sample will not fall off during the transfer process, thus completing the entire sampling process.

[0029] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A geological content sampling device for geological mapping, comprising a working platform (1) and a sampling cylinder (2), characterized in that, An opening (105) is provided at the center of the working platform (1). A receiving plate (3) is symmetrically arranged on the working platform (1) at the opening (105). The sampling cylinder (2) is located directly above the two receiving plates (3). An annular scraper (5) is provided at the inner top of the sampling cylinder (2). Four guide rods (501) are fixed on the upper surface of the annular scraper (5). The top ends of the four guide rods (501) extend through the top wall of the sampling cylinder (2) to the outside and are fixed with an annular plate (502). A driving assembly (6) is provided at the top of the sampling cylinder (2). The driving assembly (6) is used to control the annular plate. The plate (502) moves vertically and pushes the annular scraper (5) to process the loose outer layer of the sampled soil. The bottom of the inner wall of the sampling tube (2) is symmetrically provided with placement grooves (202). An arc-shaped clamp (204) is installed in each of the two placement grooves (202). The tube wall of the sampling tube (2) is provided with a through hole (203) at the two placement grooves (202). Side plates (106) are fixed on both sides of the upper surface of the working platform (1). A moving component (4) is provided between the two side plates (106). The moving component (4) is used to control the opening and closing movement of the two receiving plates (3).

2. The geological content sampling device for geological mapping according to claim 1, characterized in that, The drive assembly (6) includes a stepper motor (601) and two symmetrically arranged lead screws (607). The top ends of the two lead screws (607) are rotatably connected to the lower surface of the annular plate (502). The top wall of the sampling cylinder (2) is provided with holes (206) at the two lead screws (607). The top end of the sampling cylinder (2) is provided with a sleeve (603) above the two holes (206). The bottom ends of the two lead screws (607) are inserted into the sleeves (603) and are threadedly engaged. The top of the outer wall of the two sleeves (603) is provided with a limiting plate (605). The opposite side of the two limiting plates (605) is fixed with a baffle (205). The bottom ends of the two baffles (205) are fixedly connected to the top end of the sampling cylinder (2).

3. A geological content sampling device for geological mapping according to claim 2, characterized in that, The bottom of the outer walls of the two sleeves (603) are fixedly fitted with transmission wheels (6031), and the two transmission wheels (6031) are connected by a transmission chain (604). The two sleeves (603) are connected to the bearing at the contact part of the limiting plate (605). The outer wall of one sleeve (603) is fixedly fitted with a driven gear (606) above the transmission wheel (6031). A protective shell (103) is provided above the top of the sampling cylinder (2).

4. A geological content sampling device for geological mapping according to claim 3, characterized in that, The protective shell (103) is equipped with a drive motor (104) by screws. The output end of the drive motor (104) passes through the bottom wall of the protective shell (103) and is fixed to the center bolt at the top of the sampling cylinder (2). The diameter of the two transmission wheels (6031) is larger than the diameter of the output end of the drive motor (104). A mounting groove (201) is provided on one side of the top of the sampling cylinder (2). The stepper motor (601) is fixed in the mounting groove (201) by screws. The outer wall of the output end of the stepper motor (601) is fixedly fitted with a drive gear (602). The drive gear (602) is meshed with the tooth surface of the driven gear (606).

5. A geological content sampling device for geological mapping according to claim 2, characterized in that, The upper surface of the working platform (1) is fixed with a gantry frame (101). A hydraulic cylinder (102) is fixed in the center of the lower surface of the frame plate of the gantry frame (101) by bolts. The output end of the hydraulic cylinder (102) is fixedly connected to the top of the protective shell (103) by bolts. Pressure sensors are symmetrically embedded in the lower surface of the frame plate of the gantry frame (101). The upper surface of the annular plate (502) is matched with two pressure sensors.

6. A geological content sampling device for geological mapping according to claim 1, characterized in that, The bottom blade of the annular scraper (5) is designed with an inclination and is blunted.

7. A geological content sampling device for geological mapping according to claim 1, characterized in that, Both side plates (106) are fitted with electric telescopic cylinders (7) by screws on the top of the side of the sampling cylinder (2). The telescopic ends of the two electric telescopic cylinders (7) are fixed with magnetic push blocks (701) that match the perforation (203). The end faces of the two magnetic push blocks (701) are engaged with the outer wall of the arc-shaped clamp (204).

8. A geological content sampling device for geological mapping according to claim 1, characterized in that, Both of the receiving plates (3) are semi-circular in shape, and both of the receiving plates (3) are provided with arc-shaped through grooves (301) for the outer soil to fall off. The lower surfaces of both receiving plates (3) are in sliding contact with the upper surface of the working platform (1).

9. A geological content sampling device for geological mapping according to claim 1, characterized in that, The diameters of both receiving plates (3) are greater than the aperture of the opening (105), which is greater than the outer diameter of the sampling cylinder (2).

10. A geological content sampling device for geological mapping according to claim 1, characterized in that, The moving component (4) includes a bidirectional threaded rod (402) and a sliding rod (403). The outer walls of the two receiving plates (3) are respectively fixed with moving blocks (401) and sliders (405). The two moving blocks (401) are both sleeved on the bidirectional threaded rod (402) and are threadedly engaged. The two sliders (405) are both slidably sleeved on the sliding rod (403). Both ends of the sliding rod (403) are fixedly connected to the side plate (106). Both ends of the bidirectional threaded rod (402) are rotatably connected to the side plate (106). A geared motor (404) is installed on the outer wall of one of the side plates (106) by screws. The output end of the geared motor (404) passes through the side plate (106) and is connected to the flange of the bidirectional threaded rod (402).

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