An engineering geological exploration sampling device and an exploration method

Abstract

The application relates to the technical field of geological exploration sampling, and discloses an engineering geological exploration sampling device and an exploration method, which comprise an engineering geological exploration sampling device, a handheld driving part, a lengthening part detachably connected to the bottom of the handheld driving part, a sampling part connected to the bottom of the lengthening part, the sampling part comprising a butt joint mechanism connected with the lengthening part, an arc-shaped lifting mechanism fixed to one side of the bottom of the butt joint mechanism, and a sealing mechanism connected to the opening of the lifting mechanism. The application is convenient for geological sampling operation of different lengths, is suitable for geological sampling under different conditions, can lift and push the sampled sample out of the sampler during the sampling process, pushes and receives the sample, pushes the sampled sample downward into a sealing plate, is convenient for taking out the sealing plate and the sample from the sampling part, is convenient for taking out the sample, ensures the sample integrity, is convenient for cleaning and assembling the sampling part, avoids subsequent sampling interference, and improves the sampling accuracy.

Description

Technical Field

[0001] This invention relates to the field of geological exploration and sampling technology, and in particular to an engineering geological exploration and sampling device and exploration method. Background Technology

[0002] Geological exploration is an investigation and research activity that uses various means and methods to explore and detect geology, determine suitable bearing strata, determine the foundation type based on the bearing capacity of the bearing strata, and calculate foundation parameters. When conducting geological exploration in a certain area, it is necessary to sample and analyze the soil in that area. Currently, when geological exploration personnel conduct outdoor sampling, they usually use a soil sampling rig to insert a soil sampling tube into the soil layer for sampling. When using this method, the sample stays inside the circular soil sampling tube, making it inconvenient to remove the sample completely and effectively from the soil sampling tube. At the same time, it is also inconvenient to clean the soil sampling tube, which makes the sample easily contaminated and interfered with, reducing the sampling accuracy. Therefore, an engineering geological exploration sampling device and exploration method are proposed. Summary of the Invention

[0003] To address the technical problem that it is inconvenient to remove samples completely and effectively from the sampling tube, and it is also inconvenient to clean the sampling tube, which leads to easy contamination and interference of the sampled samples and reduces the sampling accuracy, this invention provides an engineering geological exploration sampling device and exploration method.

[0004] This invention is achieved using the following technical solution: an engineering geological exploration sampling device, comprising a handheld drive unit, an extension unit detachably connected to the bottom of the handheld drive unit, a sampling unit connected to the bottom of the extension unit, the sampling unit including a docking mechanism connected to the extension unit, a lifting mechanism with an arc-shaped structure fixed to one side of the bottom of the docking mechanism, a closing mechanism connected to the opening of the lifting mechanism, a tunneling mechanism with an annular structure connected to the bottom of the lifting mechanism, and a linkage mechanism connecting the tunneling mechanism and the docking mechanism;

[0005] The docking mechanism includes a hollow connecting plate. Two sets of connecting seats fixed to the top of the connecting plate and fixed to the extension are fixedly connected. An L-shaped pull rod is provided on one side of the connecting seat and slidably connected to the extension. The pull rod is slidably connected to the connecting plate. A push plate is fixedly connected to one end of the pull rod that extends into the connecting plate. A top rod is fixedly connected to one side of the push plate. A drive rod is hinged to the other end of the top rod. An overlapping rod is fixedly connected to the other end of the drive rod and overlaps with the closing mechanism. A side plate is slidably connected to one end of the overlapping rod and fixed to the transfer plate. A guide groove is provided along its length and fixed to the overlapping rod. An insertion channel communicating with the inside of the connecting plate is provided at the bottom of the side of the connecting plate near the closing mechanism. The push plate is fixedly connected to the linkage mechanism and the lifting mechanism.

[0006] The lifting mechanism includes an arc-shaped base plate fixed to the connecting plate. The concave surface of the base plate has an arc-shaped mounting groove. An arc-shaped support plate is provided at the opening of the mounting groove. Multiple sets of pull rods 2 are provided on the convex surface of the support plate and are movably sleeved with the base plate. The pull rods 2 extend into one end of the connecting plate and are fixed to the push plate 1. The pull rods 2 are hinged to pull rods 3 distributed along the length direction and hinged to the convex surface of the support plate.

[0007] Using the above technical solution, a sampling section of appropriate length is selected and installed according to the exploration depth requirements of the exploration location. After installation, the exploration sampling device is placed above the exploration location. Then, the hand-held drive unit is held with both hands to start the sampling operation using the sampling section. When the sampling section extends to the ground sampling depth, the sampling section is pulled out from the ground. Then, the hand-held drive unit is used to adjust the posture and state of the sampling section so that the sampling section and the extension are in a vertical state. At the same time, the sampling section pushes the sample downward to facilitate sample collection.

[0008] As a further improvement to the above solution, the sealing mechanism includes a sealing plate with an arc-shaped structure disposed at the opening of the substrate. An arc-shaped abutment plate is fixedly connected to the top of the sealing plate. Two sets of parallel insertion plates are fixedly connected to the concave surface of the top of the abutment plate. A fixed shaft is fixed between the two sets of insertion plates. A pressing plate is movably sleeved on the outer ring of the fixed shaft. An overlapping groove is opened at the bottom of one end of the pressing plate near the top rod, which is connected to the overlapping rod. A spring is fixedly connected to the top of the sealing plate at the bottom of the other end of the pressing plate.

[0009] With the above technical solution, the soil sample is stored inside the sampling section. Then, the push rod motor is started, and the two sets of extension rods push the push-pull rod downward. The rack at the bottom of the push-pull rod moves, which in turn drives the gear to rotate, thereby causing the rotating shaft to rotate. Then, under the action of the chain, sprocket one, and sprocket two, the deflection shaft rotates, which in turn drives the connecting seat fixed to the deflection shaft to deflect. This causes the connecting plate to deflect along the bottom of the extension until the docking mechanism deflects to be perpendicular to the extension. After the docking mechanism deflects, the sealing plate is located at the bottom of the base plate, which makes it easy for the tray on the base plate to push the sample downward to the top of the sealing plate, facilitating sample collection.

[0010] As a further improvement to the above solution, the hand-held drive unit includes a base plate, hand-held handles fixed to both sides of the base plate, a connecting tube movably sleeved on the base plate, a cover set on the top of the base plate, a drive mechanism connected to one end of the connecting tube extending into the cover, an adjustment mechanism fixedly connected to the inner side wall of the top of the cover, and a connecting mechanism for connecting with the extension unit fixedly connected to the bottom of the adjustment mechanism.

[0011] As a further improvement to the above solution, the drive mechanism includes a gear ring 1 fixedly sleeved with the outer ring of the connecting pipe, a gear 1 meshing with one side of the gear ring 1, a rotating shaft 1 fixedly sleeved with the inner ring of the gear 1, and a motor 1 fixedly connected to the cover mounted on the top of the rotating shaft 1; the adjustment mechanism includes a push unit 1 fixedly connected to the top of the cover, and a push unit 2 fixedly connected to the bottom output end of the push unit 1 and to the connecting mechanism; the connecting mechanism includes an L-shaped bracket fixedly connected to the bottom output end of the push unit 2, and two sets of parallel extension rods fixedly connected to the bottom of the bracket, with the extension rods being parallel to the base plate.

[0012] Through the above technical solution, under the action of the adjustment channel on the groove one, the pull rod one moves downward, and then drives the push plate one to move downward. Then, the pull rod two and the transmission rod both move downward. When the transmission rod moves downward, the push plate two moves downward. The top rod two located at the top of the push plate two moves downward and does not engage with the bottom of the sealing plate. At the same time, when the pull rod two moves downward, it pushes the pull rod three to move. Then, the pull rod three drives the support plate to move downward. At the same time, the push plate one drives the top rod one to move. Then, the drive rod pushes the sealing mechanism to move away from the substrate. At this time, the overlapping rod on the drive rod, guided by the guide groove on the side plate, pushes the pressing plate that overlaps with the overlapping rod to the side away from the connecting plate, thereby pushing the sealing plate from the opening of the substrate. At the same time, the support plate pushes the collected sample to the concave surface of the sealing plate. When taking it out, the hand presses the pressing plate at the end of the sealing plate to deflect the pressing plate and prevent it from overlapping with the overlapping rod. Then, it is pulled out from the bottom of the connecting plate to complete the sample collection operation.

[0013] As a further improvement to the above solution, the tunneling mechanism includes a tunneling plate fixedly connected to the bottom of the base plate, a feeding channel running through the inside of the tunneling plate, a transfer cavity located inside the tunneling plate on the outer ring of the feeding channel, a push plate two fixedly connected to the linkage mechanism and slidably connected inside the transfer cavity, and a top rod two fixedly connected to the top of the push plate two for locking the closing mechanism.

[0014] Through the above technical solution, during the docking installation, the top rod two engages with the bottom of the sealing plate from the bottom, thereby achieving the docking installation of the sealing plate and the substrate.

[0015] As a further improvement to the above solution, the linkage mechanism includes a transmission rod that is slidably connected to the base plate, the top of the transmission rod extending into the connecting plate and fixedly connected to the push plate, and the bottom of the transmission rod being connected to the tunneling mechanism.

[0016] The above technical solution enables the tunneling mechanism to clamp and fix the bottom of the sealing plate from the bottom.

[0017] As a further improvement to the above solution, the extension includes a connecting rod, an insertion hole at the top of the connecting rod, and a push-pull rod slidably sleeved inside the insertion hole. The outer ring of the push-pull rod extending out of the top of the insertion hole has an annular insertion groove that slidably connects with the hand-held drive unit. A rack three is fixedly connected to the bottom of the push-pull rod, and a gear three meshes with one side of the rack three. A rotating shaft three that is movably sleeved with the connecting rod is fixedly sleeved on the inner ring of the gear three. A sprocket one is fixedly sleeved on the outer ring of the rotating shaft three. A chain with an annular structure is connected to the sprocket one. A sprocket two is connected to the inner ring of the chain. A deflection shaft that is movably sleeved with the connecting rod is fixedly sleeved on the inner ring of the sprocket two. The end of the deflection shaft extending out of the connecting rod is fixedly connected to the connecting seat. An inwardly recessed groove one is opened on both sides of the bottom of the connecting rod. An adjustment channel that slidably connects with the pull rod one is opened on the inner side wall of the groove one. A fixing ring that is detachably connected to the bottom of the hand-held drive unit is fixedly connected to the top of the connecting rod.

[0018] The above technical solution involves connecting the extension section to the connecting pipe on the handheld drive unit, and using bolts to secure the fixing ring to the connecting pipe. Simultaneously, the push-pull rod extends from the inner ring of the connecting pipe into the housing. Then, the adjustment mechanism is activated, and the push rod motor is started, causing the connecting mechanism to move towards the push-pull rod. Subsequently, the two sets of extension rods on the connecting mechanism are inserted into the insertion slots at the top of the push-pull rod. Once the motor is started, the rotating shaft drives the gear to rotate, and then the gear ring drives the connecting pipe to rotate, thereby causing the entire extension section to rotate, allowing the sampling unit to perform sampling operations on the ground.

[0019] As a further improvement to the above scheme, the distance between the adjustment channel and the deflection axis gradually increases from bottom to top.

[0020] Through the above technical solution, when moving along the adjustment channel, the pull rod moves, thereby driving the push plate to move.

[0021] An engineering geological exploration method, the steps of which include:

[0022] S1 Select the exploration location, clear away debris around the location to be explored, and ensure that the ground at the exploration location is relatively flat;

[0023] S2 selects the sampling section of the corresponding length according to the exploration depth, and connects and installs the extension section with the handheld drive section;

[0024] S3 places the docked sampling device above the survey location and uses the hand-held drive unit to start the soil sample survey operation. After the survey is completed, the sampling unit is pulled upwards, and the state of the sampling unit is adjusted using the hand-held drive unit. The sampling unit pushes out the sample for easy sampling and storage.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. The present invention adopts a modular design, which facilitates geological sampling operations of different lengths and is suitable for geological sampling under different conditions.

[0027] 2. During the sampling process, the present invention can lift and push the sample out from inside the sampler and receive the sample, and push the sample downward into the closed plate, so as to facilitate the removal of the closed plate and the sample from the sampling part.

[0028] 3. This invention facilitates sample removal, ensuring sample integrity, and also makes it easy to clean and assemble the sampling unit, avoiding subsequent sampling interference and improving sampling accuracy. Attached Figure Description

[0029] Figure 1 A schematic diagram of the structure of an engineering geological exploration sampling device provided by the present invention;

[0030] Figure 2 A schematic diagram of the handheld drive unit provided by the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the extension and sampling part provided by the present invention;

[0032] Figure 4 This is a partially enlarged structural schematic diagram provided by the present invention;

[0033] Figure 5 This is a schematic diagram of the sampling section provided by the present invention;

[0034] Figure 6 A schematic diagram of the closure mechanism provided by the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the push plate and the push rod provided by the present invention;

[0036] Figure 8 This is a schematic diagram of the lifting mechanism provided by the present invention.

[0037] Explanation of key symbols:

[0038] 1. Handheld drive unit, 2. Extension unit, 3. Sampling unit, 4. Docking mechanism, 5. Lifting mechanism, 6. Tunneling mechanism, 7. Sealing mechanism, 8. Linkage mechanism, 11. Base plate, 12. Handheld handle, 13. Connecting pipe, 14. Cover, 15. Drive mechanism, 16. Adjustment mechanism, 17. Connection mechanism, 21. Connecting rod, 22. Fixing ring, 23. Push-pull rod, 24. Insertion slot, 25. Deflection shaft, 26. Groove one, 27. Adjustment channel, 41. Connecting plate, 42. Connecting seat, 43. Pull rod one, 44. Push plate one, 45. Top rod one, 46. Drive rod, 47. Overlapping rod, 48. Insertion channel, 49. Side plate, 51. Base plate, 52. Mounting slot, 53. Support plate, 54. Pull rod two, 55. Pull rod three, 61. Tunneling plate, 62. Adapter cavity, 63. Push plate two, 71. Sealing plate, 72. Contact plate, 73. Insertion plate, 74. Pressing plate. Detailed Implementation

[0039] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0040] Example 1:

[0041] Please combine Figures 1-8 An engineering geological exploration sampling device according to this embodiment includes a handheld drive unit 1, an extension unit 2 detachably connected to the bottom of the handheld drive unit 1, a sampling unit 3 connected to the bottom of the extension unit 2, a docking mechanism 4 connected to the extension unit 2, a lifting mechanism 5 with an arc-shaped structure fixed to one side of the bottom of the docking mechanism 4, a closing mechanism 7 connected to the opening of the lifting mechanism 5, a tunneling mechanism 6 with an annular structure connected to the bottom of the lifting mechanism 5, and a linkage mechanism 8 connected between the tunneling mechanism 6 and the docking mechanism 4.

[0042] The docking mechanism 4 includes a hollow connecting plate 41. Two sets of connecting seats 42, which are fixed to the top of the connecting plate 41 and to the extension 2, are fixedly connected. An L-shaped pull rod 43, which is slidably connected to the extension 2, is provided on one side of each connecting seat 42. The pull rod 41 is slidably connected to the connecting plate 41. A push plate 44 is fixedly connected to one end of the pull rod 43 that extends into the connecting plate 41. A push rod 45 is fixedly connected to one side of the push plate 44. A drive rod 46 is hinged to the other end of the push rod 45. The other end of the drive rod 46 is fixedly connected to a sealing rod. The lap rod 47 of the closing mechanism 7 is slidably connected to a side plate 49 that is fixed to the adapter plate 41. The side plate 49 has a guide groove that is set along its length and fixed to the lap rod 47. The bottom of the connecting plate 41 near the closing mechanism 7 has an insertion channel 48 that communicates with the inside of the connecting plate 41. The push plate 44 is fixed to the linkage mechanism 8 and the lifting mechanism 5. The bottom inner wall of the connecting plate 41 has two sets of L-shaped pressure plates, and the pressure plates are slidably connected to the insertion plate 73.

[0043] The lifting mechanism 5 includes an arc-shaped base plate 51 fixedly connected to the connecting plate 41. The concave surface of the base plate 51 is provided with an arc-shaped mounting groove 52. An arc-shaped support plate 53 is provided at the opening of the mounting groove 52. The outer convex surface of the support plate 53 is provided with multiple sets of pull rods 54 that are movably sleeved with the base plate 51. The pull rods 54 extend into one end of the connecting plate 41 and are fixedly connected to the push plate 44. The pull rods 54 are hinged to pull rods 55 that are distributed along the length direction and hinged to the outer convex surface of the support plate 53. The top of the support plate 53 is slidably connected to the bottom of the connecting plate 41.

[0044] The implementation principle of the engineering geological exploration sampling device and exploration method in this application embodiment is as follows: Select a sampling part 3 of appropriate length according to the exploration depth requirements of the exploration location and install and connect it. After installation, place the exploration sampling device above the exploration location. Then, hold the hand-held drive unit 1 with both hands and start the sampling operation using the sampling part 3. When the sampling part 3 extends to the ground sampling depth, pull the sampling part 3 out of the ground. Then, use the hand-held drive unit 1 to adjust the posture and state of the sampling part 3 so that the sampling part 3 is perpendicular to the extension part 2. At the same time, the sampling part 3 pushes the sample downward to facilitate sample collection.

[0045] Example 2:

[0046] Based on Embodiment 1, this embodiment is further improved in that: the closing mechanism 7 includes a closed plate 71 with an arc-shaped structure disposed at the opening of the substrate 51, an arc-shaped abutment plate 72 is fixedly connected to the top of the closed plate 71, two sets of parallel insertion plates 73 are fixedly connected to the concave surface of the top of the abutment plate 72, the two sets of insertion plates 73 are fixedly connected to the same fixed shaft, a pressing plate 74 is movably sleeved on the outer ring of the fixed shaft, the bottom of the pressing plate 74 near the top rod 45 is provided with an overlapping groove that mates with the overlapping rod 47, and the bottom of the other end of the pressing plate 74 is fixedly connected to a spring 1 that is fixedly connected to the top of the closed plate 71.

[0047] Example 3:

[0048] Based on Embodiment 1, this embodiment is further improved in that: the hand-held drive unit 1 includes a base plate 11, hand-held handles 12 fixed to both sides of the base plate 11, a connecting tube 13 movably sleeved on the base plate 11, a cover 14 set on the top of the base plate 11, a drive mechanism 15 connected to one end of the connecting tube 13 extending into the cover 14, an adjustment mechanism 16 fixed to the inner side wall of the top of the cover 14, and a connecting mechanism 17 for connecting with the extension unit 2 fixed to the bottom of the adjustment mechanism 16.

[0049] The drive mechanism 15 includes a gear ring 1 fixedly sleeved with the outer ring of the connecting pipe 13. A gear 1 meshes with one side of the gear ring 1. A rotating shaft 1 is fixedly sleeved with the inner ring of the gear 1. A motor 1 fixedly connected to the cover 14 is mounted on the top of the rotating shaft 1. The adjustment mechanism 16 includes a push unit 1 fixedly connected to the top of the cover 14. A push unit 2 fixedly connected to the bottom output end of the push unit 1 is fixedly connected to the connecting mechanism 17. The connecting mechanism 17 includes an L-shaped bracket fixedly connected to the bottom output end of the push unit 2. Two sets of parallel extension rods are fixedly connected to the bottom of the bracket. The extension rods are parallel to the base plate 11.

[0050] Example 4:

[0051] The tunneling mechanism 6 includes a tunneling plate 61 fixedly connected to the bottom of the base plate 51. A feeding channel runs through the inside of the tunneling plate 61. A transition cavity 62 located inside the tunneling plate 61 is opened on the outer ring of the feeding channel. A push plate 63 fixedly connected to the linkage mechanism 8 is slidably connected inside the transition cavity 62. A top rod 63 for engaging with the closing mechanism 7 is fixedly connected to the top of the push plate 63. A through hole 1 that connects with the transition cavity 62 is opened on the top of the tunneling plate 61. The through hole 1 is slidably connected to the top rod 62. The top rod 63 is engaged with the bottom of the closing plate 71 by a tooth and groove method.

[0052] The linkage mechanism 8 includes a transmission rod that is slidably connected to the base plate 51. The top of the transmission rod extends into the connecting plate 41 and is fixed to the push plate 44. The bottom of the transmission rod is connected to the push plate 63 of the tunneling mechanism 6.

[0053] The extension part 2 includes a connecting rod 21, an insertion hole at the top of the connecting rod 21, and a push-pull rod 23 slidably sleeved inside the insertion hole. The outer ring of the push-pull rod 23 extending beyond the top of the insertion hole has an annular insertion groove 24 that slidably connects to the hand-held drive part 1. A rack 3 is fixedly connected to the bottom of the push-pull rod 23, and a gear 3 meshes with one side of the rack 3. A rotating shaft 3, which is movably sleeved on the inner ring of the gear 3, is fixedly sleeved on the inner ring of the gear 3. A sprocket 1 is fixedly sleeved on the outer ring of the rotating shaft 3. The sprocket 1 chains... A chain with a ring structure is connected to a sprocket two on the inner ring of the chain. A deflection shaft 25 that is movably connected to the connecting rod 21 is fixedly sleeved on the inner ring of the sprocket two. One end of the deflection shaft 25 that extends out of the connecting rod 21 is fixedly connected to the connecting seat 42. The bottom of the connecting rod 21 has inwardly recessed grooves 26 on both sides. The inner side wall of the grooves 26 has an adjustment channel 27 that is slidably connected to the pull rod 43. The top of the connecting rod 21 is fixedly connected to a fixing ring 22 that is detachably connected to the bottom of the hand-held drive unit 1.

[0054] The distance between the adjustment channel 27 and the deflection axis 25 gradually increases from bottom to top;

[0055] The controller and battery are installed inside the housing 14, and the display, power switch, data interface and power interface are installed on the outside of the housing 14. The first drive unit adopts a linear module, and the second drive unit adopts a push rod motor. The controller is connected to the first motor, the linear module, the push rod motor, the battery, the display, the power switch, the data interface and the power interface.

[0056] Example 5:

[0057] An engineering geological exploration method, the steps of which include:

[0058] S1 Select the exploration location, clear away debris around the location to be explored, and ensure that the ground at the exploration location is relatively flat;

[0059] S2 selects the sampling section 3 of the corresponding length according to the exploration depth, and connects and installs the extension section 2 with the handheld drive section 1;

[0060] S3 places the docked sampling device above the survey location and starts the soil sample survey operation using the hand-held drive unit 1. After the survey is completed, the sampling unit 3 is pulled upward and the state of the sampling unit 3 is adjusted using the hand-held drive unit 1. The sampling unit 3 pushes out the sample for easy sampling and storage.

[0061] Working principle:

[0062] When conducting geological exploration and sampling, firstly, select a sampling section 3 of appropriate length according to the exploration depth requirements of the exploration location and install and connect it. After installation, place the exploration and sampling device above the exploration location. Then, hold the hand-held drive unit 1 with both hands and start the sampling operation using the sampling section 3. When the sampling section 3 extends to the ground sampling depth, pull the sampling section 3 out of the ground. Then, use the hand-held drive unit 1 to adjust the posture and state of the sampling section 3 so that the sampling section 3 is perpendicular to the extension unit 2. At the same time, the sampling section 3 pushes the sample downward to facilitate sample collection.

[0063] During the installation, the extension part 2 is connected to the connecting tube 13 on the hand-held drive part 1, and the fixing ring 22 is fixed to the connecting tube 13 with bolts. At the same time, the push-pull rod 23 extends from the inner ring of the connecting tube 13 into the inside of the cover 14. Then the adjustment mechanism 16 is started, the push rod motor is started, and the connecting mechanism 17 moves to the side of the push-pull rod 23. Then the two sets of extension rods on the connecting mechanism 17 are inserted into the insertion groove 24 at the top of the push-pull rod 23.

[0064] When sampling is performed, the motor starts, causing the shaft to drive the gear to rotate, and then the gear ring drives the connecting pipe 13 to rotate, thereby causing the extension part 2 to rotate as a whole, so that the sampling part 3 can perform sampling operations on the ground.

[0065] After sampling is performed in sampling section 3, the soil sample remains inside sampling section 3. Then, the push rod motor is started, and the two sets of extension rods push the push-pull rod 23 downward. The rack 3 at the bottom of the push-pull rod 23 moves, and then drives the gear 3 to rotate, thereby causing the rotating shaft 3 to rotate. Then, under the action of the chain, sprocket 1 and sprocket 2, the deflection shaft 25 rotates, and then drives the connecting seat 42 fixed to the deflection shaft 25 to deflect, thereby causing the connecting plate 41 to deflect along the bottom of the extension section 2 until the docking mechanism 4 deflects to be perpendicular to the extension section 2. After the docking mechanism 4 deflects, the sealing plate 71 is located at the bottom of the base plate 51, which makes it easy for the tray 53 on the base plate 51 to push the sample downward to the top of the sealing plate 71, which is convenient for sample collection.

[0066] When the docking mechanism 4 deflects, the pull rod 43 moves downward under the action of the adjustment channel 27 on the groove 26, which in turn drives the push plate 44 to move downward. Then, the pull rod 54 and the guide rod both move downward. When the guide rod moves downward, the push plate 63 moves downward. The top rod 2 located at the top of the push plate 63 moves downward and does not engage with the bottom of the closing plate 71. At the same time, when the pull rod 54 moves downward, it pushes the pull rod 55 to move. Then, the pull rod 55 drives the support plate 53 to move downward. At the same time, the push plate 44 drives the top rod 45 to move, and then the drive rod... 46 pushes the sealing mechanism 7 to move away from the substrate 51. At this time, the overlapping rod 47 on the drive rod 46, guided by the guide groove on the side plate 49, pushes the pressing plate 74, which overlaps with the overlapping rod 47, away from the connecting plate 41, thereby pushing the sealing plate 71 from the opening of the substrate 51. At the same time, the support plate 53 pushes the collected sample onto the concave surface of the sealing plate 71. When taking it out, the hand presses the pressing plate 74 at the end of the sealing plate 71, so that the pressing plate 74 deflects and does not overlap with the overlapping rod 47. Then it is pulled out from the bottom of the connecting plate 41 to complete the sample collection operation.

[0067] This design adopts a modular design, which facilitates geological sampling operations of different lengths and is suitable for geological sampling under different conditions. During the sampling process, the sample can be lifted and pushed out from inside the sampler and received. The sample is then pushed downward into the closed plate, making it easy to remove the closed plate and the sample from the sampling section. This ensures the integrity of the sample and facilitates the cleaning and reassembly of the sampling section, avoiding subsequent sampling interference and improving sampling accuracy.

[0068] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A sampling device for engineering geological exploration, characterized in that, The device includes a handheld drive unit, an extension unit detachably connected to the bottom of the handheld drive unit, a sampling unit connected to the bottom of the extension unit, a docking mechanism connected to the extension unit, an arc-shaped lifting mechanism fixed to one side of the bottom of the docking mechanism, a closing mechanism connected to the opening of the lifting mechanism, a ring-shaped tunneling mechanism connected to the bottom of the lifting mechanism, and a linkage mechanism connecting the tunneling mechanism and the docking mechanism. The docking mechanism includes a hollow connecting plate. Two sets of connecting seats fixed to the top of the connecting plate and fixed to the extension are fixedly connected. An L-shaped pull rod is provided on one side of the connecting seat and slidably connected to the extension. The pull rod is slidably connected to the connecting plate. A push plate is fixedly connected to one end of the pull rod that extends into the connecting plate. A top rod is fixedly connected to one side of the push plate. A drive rod is hinged to the other end of the top rod. An overlapping rod is fixedly connected to the other end of the drive rod and overlaps with the closing mechanism. A side plate is slidably connected to one end of the overlapping rod and fixed to the transfer plate. A guide groove is provided along its length and fixed to the overlapping rod. An insertion channel communicating with the inside of the connecting plate is provided at the bottom of the side of the connecting plate near the closing mechanism. The push plate is fixedly connected to the linkage mechanism and the lifting mechanism. The lifting mechanism includes an arc-shaped base plate fixed to the connecting plate. The concave surface of the base plate has an arc-shaped mounting groove. An arc-shaped support plate is provided at the opening of the mounting groove. Multiple sets of pull rods 2 are provided on the convex surface of the support plate and are movably sleeved with the base plate. The pull rods 2 extend into one end of the connecting plate and are fixed to the push plate 1. The pull rods 2 are hinged to pull rods 3 distributed along the length direction and hinged to the convex surface of the support plate. The extension includes a connecting rod, an insertion hole at the top of the connecting rod, and a push-pull rod slidably fitted inside the insertion hole. The outer ring of the push-pull rod extending beyond the top of the insertion hole has an annular insertion groove that slidably connects to the hand-held drive unit. A rack three is fixedly connected to the bottom of the push-pull rod, and a gear three meshes with one side of the rack three. A rotating shaft three, movably fitted to the connecting rod, is fixedly fitted to the inner ring of the gear three. A sprocket one is fixedly fitted to the outer ring of the rotating shaft three. A chain with an annular structure is connected to the sprocket one, and a sprocket two is connected to the inner ring of the chain. A deflection shaft, movably fitted to the connecting rod, is fixedly fitted to the inner ring of the sprocket two. One end of the deflection shaft extending beyond the connecting rod is fixedly connected to a connecting seat. Inwardly recessed grooves one are formed on both sides of the bottom of the connecting rod. An adjustment channel, slidably connected to the pull rod one, is formed on the inner wall of the groove one. A fixing ring, detachably connected to the bottom of the hand-held drive unit, is fixedly connected to the top of the connecting rod. The distance between the adjustment channel and the deflection shaft gradually increases from bottom to top.

2. The engineering geological exploration sampling device as described in claim 1, characterized in that, The sealing mechanism includes a sealing plate with an arc-shaped structure disposed at the opening of the substrate. An arc-shaped abutment plate is fixedly connected to the top of the sealing plate. Two sets of parallel insertion plates are fixedly connected to the concave surface of the top of the abutment plate. A fixed shaft is fixed between the two sets of insertion plates. A pressing plate is movably sleeved on the outer ring of the fixed shaft. An overlapping groove is opened at the bottom of one end of the pressing plate near the top rod, which is connected to the overlapping rod. A spring is fixedly connected to the top of the sealing plate at the bottom of the other end of the pressing plate.

3. The engineering geological exploration sampling device as described in claim 1, characterized in that, The handheld drive unit includes a base plate, hand handles fixed to both sides of the base plate, a connecting tube movably sleeved on the base plate, and a cover set on the top of the base plate. One end of the connecting tube extending into the cover is connected to a drive mechanism. An adjustment mechanism is fixed to the inner side wall of the top of the cover, and a connecting mechanism for connecting with the extension unit is fixed to the bottom of the adjustment mechanism.

4. The engineering geological exploration sampling device as described in claim 3, characterized in that, The drive mechanism includes a gear ring 1 fixedly sleeved with the outer ring of the connecting pipe, a gear 1 meshing with one side of the gear ring 1, a rotating shaft 1 fixedly sleeved with the inner ring of the gear 1, and a motor 1 fixedly connected to the cover on the top of the rotating shaft 1; the adjustment mechanism includes a push unit 1 fixedly connected to the top of the cover, and a push unit 2 fixedly connected to the bottom output end of the push unit 1 and to the connecting mechanism; the connecting mechanism includes an L-shaped bracket fixedly connected to the bottom output end of the push unit 2, and two sets of parallel extension rods fixedly connected to the bottom of the bracket, with the extension rods parallel to the base plate.

5. The engineering geological exploration sampling device as described in claim 1, characterized in that, The tunneling mechanism includes a tunneling plate fixed to the bottom of the base plate. A feeding channel runs through the inside of the tunneling plate. A transfer cavity located inside the tunneling plate is opened on the outer ring of the feeding channel. A push plate two fixed to the linkage mechanism is slidably connected inside the transfer cavity. A top rod two for locking the closing mechanism is fixed to the top of the push plate two.

6. The engineering geological exploration sampling device as described in claim 1, characterized in that, The linkage mechanism includes a transmission rod that is slidably connected to the base plate. The top of the transmission rod extends into the connecting plate and is fixedly connected to the push plate. The bottom of the transmission rod is connected to the tunneling mechanism.

7. A geological exploration method for an engineering geological exploration sampling device as described in any one of claims 1-6, characterized in that, The steps include: S1 Select the exploration location, clear away debris around the location to be explored, and ensure that the ground at the exploration location is relatively flat; S2 selects the sampling section of the corresponding length according to the exploration depth, and connects and installs the extension section with the handheld drive section; S3 places the docked sampling device above the survey location and uses the hand-held drive unit to start the soil sample survey operation. After the survey is completed, the sampling unit is pulled upwards, and the state of the sampling unit is adjusted using the hand-held drive unit. The sampling unit pushes out the sample for easy sampling and storage.

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