Sampling device and drilling sampling method for geological exploration

Abstract

The invention relates to the technical field of geological exploration, and discloses a sampling device and a drilling sampling method for geological exploration. The position of the trigger part is adjusted firstly, soil blocks excavated by the drilling barrel are conveyed to the rack pipe through transportation inside the drilling barrel, the soil blocks conveyed by the drilling barrel are discharged through the rack pipe, and along with the depth of the drilling barrel in the land and when the drilling barrel reaches the depth of the sampling position, the movement of the drilling barrel is triggered by the trigger part, so that the soil blocks can be sampled. The sampling barrel is moved to the position under the calandria, soil blocks discharged by the calandria fall into the sampling barrel so that the sampling barrel can complete sampling treatment, the drilling barrel continues to go deep and then is separated from the triggering piece, the sampling barrel is reset to leave the position below the calandria, and therefore a sampling point is arranged on the equipment in advance. The sampling treatment is automatically carried out after the equipment drills to a certain depth position through mechanical cooperation and stabilization, so that the efficiency loss caused by secondary deployment of the sampling structure on the equipment is avoided, and the treatment efficiency of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of geological exploration, in particular to a sampling device and a drilling sampling method for geological exploration. Background Art

[0002] Geological exploration is a survey and research activity that uses various means and methods to survey and detect geology, determine the appropriate bearing layer, determine the foundation type based on the bearing capacity of the bearing layer, and calculate the foundation parameters. In geological exploration, drilling equipment and methods are basically used to explore the geology.

[0003] In the existing equipment, such as Chinese patent application CN114047029A, the lifting plate can be fixed to the uppermost end of the support plate through the provided positioning assembly, and the provided handle is used for the convenience of the staff to carry it, so that the whole equipment can be moved to the designated area, and then the base plate is contacted with the ground, wherein the bottom of the base plate can be provided with anti-slip protrusions to prevent the equipment from sliding during sampling, and the base plate can adopt a square frame structure to facilitate the sampling tube to move downward and contact the ground for sampling. Of course, other structures can also be adopted, which will not be elaborated here. When the sampling equipment is moved to the designated area and fixed to the ground, the positioning assembly can be operated again, so that the lifting plate can move freely on the support plate. At this time, the parameters of each component can be set through the control panel provided on the control box, and the transmission unit can be started, so that it can drive some The sampling tubes rotate at the same time, and the lifting plate is pushed downward by holding the handle by manpower, which can drive the rotating sampling tube and the sampling head to contact the ground for sampling, wherein the sampling head can be detachably connected to the bottom end of the sampling tube by a threaded connection, and the sampling head can adopt a hollow cone structure, and a drill bit is provided at the bottom and an inlet is provided in the middle, so that rapid sampling can be performed on geologically hard areas, thereby improving the efficiency of sampling work. When the sampling is completed, the handle is pulled by manpower to make the lifting plate drive the control box and the sampling tube to move upward to the positioning component, so that the lifting plate can be fixed on the upper part of the support plate, so that the staff can take out the soil samples in multiple sampling tubes. The operation is simple and easy to carry, which improves the flexibility and practicality of the equipment. Moreover, by setting up multiple sampling tubes, not only the efficiency of sampling work can be improved, but also the accuracy of sample detection results can be guaranteed.

[0004] However, there is still the following problem: after the equipment digs to the depth required for sampling, the sampling structure is set in place for drilling sampling, resulting in low processing efficiency of the equipment. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a sampling device and a drilling sampling method for geological exploration, which has the advantages of setting sampling points on the equipment in advance, and automatically performing sampling processing after the equipment drills to a certain depth by using mechanical coordination to stabilize the sampling structure, thereby avoiding efficiency loss caused by secondary deployment of the sampling structure on the equipment and improving the processing efficiency of the equipment. It solves the problem of low processing efficiency of the equipment due to the need to set the sampling structure in place for drilling sampling after the equipment digs to the depth required for sampling.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a sampling device, comprising a machine body, a drilling mechanism arranged on the machine body, and a sampling mechanism arranged on the drilling mechanism, wherein the drilling mechanism comprises a drilling tube and a row of pipes, the machine body is provided with the drilling tube, the upper end of the drilling tube is provided with the row of pipes, the row of pipes is connected with the drilling tube, the drilling tube transports the soil blocks excavated by drilling upward, and the soil blocks transported by the drilling tube are discharged by the row of pipes; The sampling mechanism includes a triggering member and a sampling tube. The triggering member is arranged beside the drilling tube, and the sampling tube is arranged beside the drilling tube. When the drilling tube moves downward to drill deep, it is triggered by the triggering member after moving downward to the position where sampling is required, so that the sampling tube moves to the bottom of the row pipe to collect soil blocks.

[0007] Preferably, the drilling mechanism also includes a base frame, the base frame is fixedly mounted on the machine body, the top end of the base frame extends to the outside of the machine body, the base frame is rotatably engaged with a rail frame, a hydraulic rod is provided on the machine body, the fixed rod of the hydraulic rod is rotatably engaged with the machine body, the extension rod of the hydraulic rod is rotatably engaged with the rail frame, the connection between the hydraulic rod and the rail frame is located at the upper end of the rail frame, and the connection between the base frame and the rail frame is located at the lower end of the rail frame.

[0008] Preferably, a moving frame is slidably engaged with the rail frame, a first screw is rotatably engaged with the rail frame, the first screw passes through the moving frame, the first screw is threadedly engaged with the moving frame, the length of the first screw is the same as the length of the rail frame, a first motor is fixedly installed on the top of the rail frame, the first motor is dynamically connected to the first screw, the drilling barrel is fixedly installed on the moving frame, the drilling barrel passes through the moving frame, and the length of the drilling barrel is greater than the length of the moving frame.

[0009] Preferably, a rotary rod is rotatably mounted inside the drilling barrel, the cross-sectional size of the rotary rod is matched with the drilling barrel, the top of the rotary rod is at the same height as the row of pipes, the bottom of the rotary rod is at the same height as the bottom of the drilling barrel, a second motor is fixedly mounted on the top of the mobile frame, the second motor is power-connected to the rotary rod, a drill bit is fixedly mounted on the bottom end of the rotary rod, the cross-sectional size of the drill bit is larger than the cross-sectional size of the drilling barrel, and the drill bit is located outside the drilling barrel.

[0010] Preferably, the sampling mechanism also includes a sliding rod, which is fixedly mounted on the rail frame, and the length of the sliding rod is the same as that of the rail frame. The sliding rod is adjacent to the mobile frame, and a second screw rod is fixedly mounted on the rail frame, and the length of the second screw rod is the same as that of the rail frame. The sliding rod is located between the second screw rod and the mobile frame.

[0011] Preferably, the slide rod is slidably engaged with a plurality of slides, the slides are rotatably engaged with rotating parts, the rotating parts are sleeved on the second screw rod, the rotating parts are threadably engaged with the second screw rod, the slides are fixedly mounted with the trigger parts, and the trigger parts extend to be adjacent to the movable frame.

[0012] Preferably, a limit rail is fixedly installed on the movable frame, one end of the limit rail is located at one side of the movable frame, the other end of the limit rail is located below the row of pipes, the trigger member is located on the other side of the movable frame, a movable platform is slidably fitted on the limit rail, a third screw is rotatably fitted on the limit rail, the length of the third screw is the same as that of the limit rail, the third screw passes through the movable platform, the third screw is threadedly fitted with the movable platform, a third motor is fixedly installed on the limit rail, and the third motor is dynamically connected to the third screw.

[0013] Preferably, a receiving member is fixedly installed on the other end of the limit rail, and the receiving member extends to be adjacent to the other side of the movable frame, and the moving trajectory of the receiving member is adjacent to the moving trajectory of the trigger member. A turntable is rotatably provided on the movable platform, and a plurality of the sampling cylinders are arranged on the turntable, and the sampling cylinders are evenly distributed in a circular shape. A fourth motor is fixedly installed on the movable platform, and the fourth motor is located below the sampling cylinder, and the fourth motor is power-connected to the turntable.

[0014] Preferably, the sampling tube is located below the row tube, the receiving member is connected to the third motor signal, the trigger member is connected to the fourth motor signal, and the number of the sampling tubes is the same as the number of the trigger members.

[0015] A drilling sampling method for geological exploration uses the above-mentioned sampling device.

[0016] Compared with the prior art, the present invention provides a sampling device with the following beneficial effects: 1. The sampling device moves the equipment to the waiting position, first manually adjusts the position of the trigger part, so that the drilling tube is triggered by the trigger part when it moves down to the sampling position, and then starts the equipment, so that the drilling tube stands above the ground, and the drilling tube moves toward the ground, so that the drilling tube drills the ground, and the soil blocks excavated by the drilling tube are transported to the drainage pipe through the inside of the drilling tube, and the drainage pipe discharges the soil blocks transported by the drilling tube. As the drilling tube goes deeper in the ground, when the drilling tube reaches the depth of the sampling position, the movement of the drilling tube is triggered by the trigger part, so that the sampling tube moves to the bottom of the drainage pipe, and the soil blocks discharged by the drainage pipe fall into the sampling tube, so that the sampling tube completes the sampling process, and the drilling tube continues to go deeper and separates from the trigger part, so that the sampling tube returns to its position to leave the bottom of the drainage pipe, so as to set the sampling point on the equipment in advance, and use mechanical coordination to stabilize the automatic sampling process after the equipment drills to a certain depth position, so as to avoid the efficiency loss caused by the secondary deployment of the sampling structure on the equipment, and improve the processing efficiency of the equipment.

[0017] 2. The sampling device, through the setting of the trigger and the receiving part, enables the sampling device to have a mechanical automatic control device to perform sampling processing at the location where sampling is required, eliminating the need to redeploy the sampling structure when the equipment is sampling, thereby improving the processing efficiency of the equipment and avoiding missing the location where sampling is required due to negligence during continuous drilling processing, thereby improving the applicability of the equipment.

[0018] 3. The sampling device, through the setting of the turntable and the sampling tube, cooperates with the triggering of the trigger and the receiving member to achieve sampling processing at multiple depth positions, further improves the applicability of the equipment, simplifies the operation steps of the equipment, and indirectly improves the processing efficiency of the sampling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the sampling device of the present invention; Figure 2 It is a structural schematic diagram of the drilling mechanism of the present invention; Figure 3 This is a schematic diagram of the structure distribution of the mobile frame of the present invention; Figure 4 This is a schematic diagram of the internal structure distribution of the drilling tube of the present invention; Figure 5 It is a schematic diagram of the structure of the sampling mechanism of the present invention; Figure 6 This is a schematic diagram of the structural distribution of the slide bar of the present invention; Figure 7 This is a schematic diagram of the structure distribution of the receiving part of the present invention; Figure 8This is a schematic diagram of the structural distribution of the sampling tube of the present invention.

[0020] In the figure: 1, machine body; 2, drilling mechanism; 21, base frame; 22, rail frame; 23, hydraulic rod; 24, moving frame; 25, first screw; 26, first motor; 27, drilling tube; 28, rotary rod; 29, second motor; 210, drill bit; 211, row pipe; 3, sampling mechanism; 31, sliding rod; 32, second screw; 33, sliding member; 34, rotating member; 35, trigger member; 36, limit rail; 37, moving platform; 38, third screw; 39, third motor; 310, receiving member; 311, turntable; 312, sampling tube; 313, fourth motor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a sampling device and a drilling sampling method for geological exploration. Example 1

[0023] In a typical implementation of the present application, Figure 1 As shown, a sampling device comprises a body 1, a drilling mechanism 2 arranged on the body 1, and a sampling mechanism 3 arranged on the drilling mechanism 2, wherein the drilling mechanism 2 comprises a drilling tube 27 and a row pipe 211, the body 1 is provided with the drilling tube 27, the upper end of the drilling tube 27 is provided with the row pipe 211, the row pipe 211 is connected with the drilling tube 27, the drilling tube 27 transports the soil blocks excavated by drilling upward, and the soil blocks transported by the drilling tube 27 are discharged by the row pipe 211; The sampling mechanism 3 includes a trigger member 35 and a sampling tube 312. The trigger member 35 is arranged next to the drilling tube 27, and the sampling tube 312 is arranged next to the drilling tube 27. When the drilling tube 27 moves downward to drill deep, it is triggered by the trigger member 35 after moving downward to the position where sampling is required, so that the sampling tube 312 moves to the bottom of the drainage pipe 211 to collect soil blocks.

[0024] When using the present invention: The equipment is moved to the waiting position, and the position of the trigger member 35 is manually adjusted so that the drilling tube 27 is triggered by the trigger member 35 when it moves down to the sampling position. Then the equipment is started so that the drilling tube 27 stands above the ground, and the drilling tube 27 moves toward the ground so that the drilling tube 27 drills the ground. The soil blocks excavated by the drilling tube 27 are transported to the drainage pipe 211 through the inside of the drilling tube 27, and the drainage pipe 211 discharges the soil blocks transported by the drilling tube 27. As the drilling tube 27 goes deeper into the ground, when the drilling tube 27 reaches the depth of the sampling position, the drilling tube 27 is discharged. The movement of the cylinder 27 is triggered by the trigger member 35, so that the sampling cylinder 312 moves to the bottom of the row pipe 211, and the soil discharged from the row pipe 211 falls into the sampling cylinder 312, so that the sampling cylinder 312 completes the sampling process. The drilling cylinder 27 continues to go deeper and separates from the trigger member 35, so that the sampling cylinder 312 returns to its original position to leave the bottom of the row pipe 211, thereby setting the sampling point on the equipment in advance, and using mechanical coordination to stabilize the sampling process automatically after the equipment drills to a certain depth, avoiding the efficiency loss caused by the secondary deployment of the sampling structure on the equipment, and improving the processing efficiency of the equipment. Example 2

[0025] like Figure 2-Figure 4 As shown, the difference from the above embodiment is that the drilling mechanism 2 also includes a base frame 21, the base frame 21 is fixedly installed on the machine body 1, the top end of the base frame 21 extends to the outside of the machine body 1, the base frame 21 is rotatably matched with a rail frame 22, a hydraulic rod 23 is arranged on the machine body 1, the fixed rod of the hydraulic rod 23 is rotatably matched with the machine body 1, the extension rod of the hydraulic rod 23 is rotatably matched with the rail frame 22, the connection between the hydraulic rod 23 and the rail frame 22 is located at the upper end of the rail frame 22, and the connection between the base frame 21 and the rail frame 22 is located at the lower end of the rail frame 22.

[0026] Furthermore, a moving frame 24 is slidably engaged on the rail frame 22, and a first screw 25 is rotatably engaged on the rail frame 22. The first screw 25 passes through the moving frame 24, and the first screw 25 is threadedly engaged with the moving frame 24. The length of the first screw 25 is the same as the length of the rail frame 22. A first motor 26 is fixedly installed on the top of the rail frame 22, and the first motor 26 is power-connected to the first screw 25. A drilling barrel 27 is fixedly installed on the moving frame 24, and the drilling barrel 27 passes through the moving frame 24. The length of the drilling barrel 27 is greater than the length of the moving frame 24.

[0027] Furthermore, a rotary rod 28 is rotatably mounted inside the drilling barrel 27, the cross-sectional dimensions of the rotary rod 28 are matched with those of the drilling barrel 27, the top of the rotary rod 28 is at the same height as the row pipe 211, the bottom of the rotary rod 28 is at the same height as the bottom of the drilling barrel 27, a second motor 29 is fixedly mounted on the top of the movable frame 24, the second motor 29 is power-connected to the rotary rod 28, a drill bit 210 is fixedly mounted on the bottom of the rotary rod 28, the cross-sectional dimensions of the drill bit 210 are larger than those of the drilling barrel 27, and the drill bit 210 is located outside the drilling barrel 27.

[0028] Among them, when drilling, first start the hydraulic rod 23, the hydraulic rod 23 drives the rail frame 22 to rotate based on the base frame 21, so that the rail frame 22 stands vertically above the ground, start the first motor 26, the first motor 26 drives the first screw 25 to rotate, the first screw 25 drives the moving frame 24 to move on the rail frame 22, the moving frame 22 drives the drilling tube 27 to move, so that the drilling tube 27 moves toward the ground, and at the same time start the second motor 29, the second motor 29 drives the rotary rod 28 to rotate, the rotary rod 28 drives the drill bit 210 to rotate, and as the drilling tube 27 moves, the drill bit 210 is against the ground for drilling and excavation, the soil blocks excavated by the drill bit 210 enter the drilling tube 27, and the rotary rod 28 spirally transports the soil blocks upward, and the soil blocks are sent to the side of the drainage pipe 211 and discharged from the drainage pipe 211. Example 3

[0029] like Figure 5-Figure 8 As shown, the difference from the above embodiment is that the sampling mechanism 3 also includes a sliding rod 31, the sliding rod 31 is fixedly mounted on the rail frame 22, the length of the sliding rod 31 is the same as that of the rail frame 22, the sliding rod 31 is adjacent to the moving frame 24, a second screw rod 32 is fixedly mounted on the rail frame 22, the length of the second screw rod 32 is the same as that of the rail frame 22, and the sliding rod 31 is located between the second screw rod 32 and the moving frame 24.

[0030] Furthermore, a plurality of slides 33 are slidably engaged on the slide rod 31, and a rotating member 34 is rotatably engaged on the slides 33. The rotating members 34 are sleeved on the second screw rod 32, and the rotating members 34 are threadedly engaged with the second screw rod 32. A trigger member 35 is fixedly installed on the slides 33, and the trigger member 35 extends to be adjacent to the movable frame 24.

[0031] Furthermore, a limit rail 36 is fixedly installed on the moving frame 24, one end of the limit rail 36 is located on one side of the moving frame 24, the other end of the limit rail 36 is located below the row pipe 211, the trigger member 35 is located on the other side of the moving frame 24, the limit rail 36 is slidably fitted with a moving platform 37, the limit rail 36 is rotatably fitted with a third screw 38, the length of the third screw 38 is the same as the length of the limit rail 36, the third screw 38 passes through the moving platform 37, the third screw 38 is threadedly fitted with the moving platform 37, a third motor 39 is fixedly installed on the limit rail 36, and the third motor 39 is power-connected to the third screw 38.

[0032] Furthermore, a receiving member 310 is fixedly installed on the other end of the limit rail 36, and the receiving member 310 extends to be adjacent to the other side of the movable frame 24. The moving trajectory of the receiving member 310 is adjacent to the moving trajectory of the trigger member 35. A turntable 311 is rotatably cooperated on the movable platform 37, and a plurality of sampling barrels 312 are arranged on the turntable 311. The sampling barrels 312 are evenly distributed in a circular shape. A fourth motor 313 is fixedly installed on the movable platform 37, and the fourth motor 313 is located below the sampling barrel 312. The fourth motor 313 is power-connected to the turntable 311.

[0033] Furthermore, the sampling tubes 312 are located below the row tube 211 , the receiving member 310 is connected to the third motor 39 signal, the trigger member 35 is connected to the fourth motor 313 signal, and the number of the sampling tubes 312 is the same as the number of the trigger members 35 .

[0034] Before operation, the rotating member 34 is rotated first, and the rotating member 34 moves on the second screw rod 32. The movement of the rotating member 34 drives the sliding member 33 to move on the sliding rod 31, so as to move the sliding member 33 to the height where sampling processing is required. During sampling processing, as the drilling tube 27 penetrates into the sampling position, the receiving member 310 and the triggering member 35 are triggered to start the third motor 39, and the third motor 39 drives the third screw rod 38 to rotate, and the third screw rod 38 drives the moving platform 37 to move on the limiting rail 36, so that the moving platform 37 drives the rotating table 311 to move, and the rotating table 311 is rotated. The platform 311 drives the sampling tube 312 to move, so that the sampling tube 312 moves to the bottom of the drain pipe 211, and the soil discharged from the drain pipe 211 falls into the sampling tube 312 to complete the sampling collection. As the drilling tube 27 continues to go deeper, the receiving member 310 separates from the trigger member 35, so that the third motor 39 drives the moving platform 37 to reset and starts the fourth motor 313. The fourth motor 313 drives the turntable 311 to deflect, so that the next sampling tube 312 deflects to the position of the soil block to be collected, waiting for the receiving member 310 to be triggered by the next trigger member 35.

[0035] The overall working principle of the sampling device: The equipment is moved to the waiting position, and the position of the trigger member 35 is manually adjusted so that the drilling tube 27 is triggered by the trigger member 35 when it moves down to the sampling position. Then the equipment is started so that the drilling tube 27 stands above the ground, and the drilling tube 27 moves toward the ground so that the drilling tube 27 drills the ground. The soil blocks excavated by the drilling tube 27 are transported to the drainage pipe 211 through the inside of the drilling tube 27, and the drainage pipe 211 discharges the soil blocks transported by the drilling tube 27. As the drilling tube 27 goes deeper into the ground, when the drilling tube 27 reaches the depth of the sampling position, the drilling tube 27 is discharged. The movement of the cylinder 27 is triggered by the trigger member 35, so that the sampling cylinder 312 moves to the right below the row pipe 211, and the soil blocks discharged from the row pipe 211 fall into the sampling cylinder 312, so that the sampling cylinder 312 completes the sampling process. The drilling cylinder 27 continues to go deeper and separates from the trigger member 35, so that the sampling cylinder 312 returns to its position to leave the bottom of the row pipe 211, so that the sampling point is set on the equipment in advance, and the mechanical coordination is used to stabilize the automatic sampling process after the equipment drills to a certain depth position, so as to avoid the efficiency loss caused by the secondary deployment of the sampling structure on the equipment and improve the processing efficiency of the equipment; When drilling, the hydraulic rod 23 is first started, and the hydraulic rod 23 drives the rail frame 22 to rotate based on the base frame 21, so that the rail frame 22 stands vertically above the ground, and the first motor 26 is started, and the first motor 26 drives the first screw 25 to rotate, and the first screw 25 drives the mobile frame 24 to move on the rail frame 22, and the mobile frame 22 drives the drilling tube 27 to move, so that the drilling tube 27 moves toward the ground, and at the same time the second motor 29 is started, and the second motor 29 drives the rotary rod 28 to rotate, and the rotary rod 28 drives the drill bit 210 to rotate, and with the movement of the drilling tube 27, the drill bit 210 is pressed against the ground for drilling and excavation, and the soil blocks excavated by the drill bit 210 enter the drilling tube 27, and the soil blocks are spirally transported upward by the rotary rod 28, and the soil blocks are sent to the side of the discharge pipe 211 and discharged from the discharge pipe 211; Before operation, the rotating member 34 is rotated first, and the rotating member 34 moves on the second screw rod 32. The movement of the rotating member 34 drives the sliding member 33 to move on the sliding rod 31, so as to move the sliding member 33 to the height where sampling processing is required. During sampling processing, as the drilling tube 27 penetrates into the sampling position, the receiving member 310 and the triggering member 35 are triggered to start the third motor 39, and the third motor 39 drives the third screw rod 38 to rotate, and the third screw rod 38 drives the moving platform 37 to move on the limiting rail 36, so that the moving platform 37 drives the turntable 311 to move, and the turntable 311 drives the sampling tube 312 to move, so that the sampling tube 312 moves to the bottom of the drain pipe 211, and the soil discharged from the drain pipe 211 falls into the sampling tube 312 to complete the sampling collection. As the drilling tube 27 continues to go deeper, the receiving member 310 separates from the trigger member 35, so that the third motor 39 drives the moving platform 37 to reset, and starts the fourth motor 313. The fourth motor 313 drives the turntable 311 to deflect, so that the next sampling tube 312 deflects to the position of the soil block to be collected, waiting for the receiving member 310 to be triggered by the next trigger member 35.

[0036] A drilling sampling method for geological exploration uses the above-mentioned sampling device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device, comprising a body, a drilling mechanism arranged on the body, and a sampling mechanism arranged on the drilling mechanism, characterized in that: The drilling mechanism includes a drilling tube and a row of pipes. The drilling tube is arranged on the machine body, and the row of pipes is arranged on the upper end of the drilling tube. The row of pipes is connected with the drilling tube. The drilling tube transports the soil blocks excavated by drilling upwards, and the soil blocks transported by the drilling tube are discharged by the row of pipes. The sampling mechanism includes a triggering member and a sampling tube. The triggering member is arranged beside the drilling tube, and the sampling tube is arranged beside the drilling tube. When the drilling tube moves downward to drill deep, it is triggered by the triggering member after moving downward to the position where sampling is required, so that the sampling tube moves to the bottom of the row pipe to collect soil blocks.

2. A sampling device according to claim 1, characterized in that: The drilling mechanism also includes a base frame, which is fixedly mounted on the machine body, the top of which extends to the outside of the machine body, and a rail frame is rotatably engaged with the base frame. A hydraulic rod is provided on the machine body, the fixed rod of the hydraulic rod is rotatably engaged with the machine body, the extension rod of the hydraulic rod is rotatably engaged with the rail frame, the connection between the hydraulic rod and the rail frame is located at the upper end of the rail frame, and the connection between the base frame and the rail frame is located at the lower end of the rail frame.

3. A sampling device according to claim 2, characterized in that: A moving frame is slidably engaged with the rail frame, and a first screw is rotatably engaged with the rail frame. The first screw passes through the moving frame, and the first screw is threadedly engaged with the moving frame. The length of the first screw is the same as the length of the rail frame. A first motor is fixedly installed on the top of the rail frame, and the first motor is dynamically connected to the first screw. The drilling barrel is fixedly installed on the moving frame, and the drilling barrel passes through the moving frame. The length of the drilling barrel is greater than the length of the moving frame.

4. A sampling device according to claim 3, characterized in that: A rotary rod is rotatably mounted inside the drilling barrel, the cross-sectional dimensions of the rotary rod are matched with those of the drilling barrel, the top of the rotary rod is at the same height as the row of pipes, the bottom of the rotary rod is at the same height as the bottom of the drilling barrel, a second motor is fixedly mounted on the top of the mobile frame, the second motor is power-connected to the rotary rod, a drill bit is fixedly mounted on the bottom end of the rotary rod, the cross-sectional dimensions of the drill bit are larger than those of the drilling barrel, and the drill bit is located outside the drilling barrel.

5. A sampling device according to claim 4, characterized in that: The sampling mechanism also includes a sliding rod, which is fixedly mounted on the rail frame. The sliding rod has the same length as the rail frame, and the sliding rod is adjacent to the mobile frame. A second screw rod is fixedly mounted on the rail frame. The length of the second screw rod is the same as the rail frame, and the sliding rod is located between the second screw rod and the mobile frame.

6. A sampling device according to claim 5, characterized in that: The slide bar is slidably fitted with a plurality of slides, the slides are rotatably fitted with rotating parts, the rotating parts are sleeved on the second screw rod, the rotating parts are threadably fitted with the second screw rod, the slides are fixedly mounted with the trigger parts, and the trigger parts extend to be adjacent to the moving frame.

7. A sampling device according to claim 6, characterized in that: A limit rail is fixedly installed on the moving frame, one end of the limit rail is located at one side of the moving frame, the other end of the limit rail is located below the row of pipes, the trigger member is located on the other side of the moving frame, a moving platform is slidably fitted on the limit rail, a third screw is rotatably fitted on the limit rail, the length of the third screw is the same as that of the limit rail, the third screw passes through the moving platform, the third screw is threadedly fitted with the moving platform, a third motor is fixedly installed on the limit rail, and the third motor is dynamically connected to the third screw.

8. A sampling device according to claim 7, characterized in that: A receiving member is fixedly installed on the other end of the limit rail, and the receiving member extends to be adjacent to the other side of the movable frame. The moving trajectory of the receiving member is adjacent to the moving trajectory of the trigger member. A turntable is rotatably provided on the movable platform, and a plurality of the sampling cylinders are arranged on the turntable, and the sampling cylinders are evenly distributed in a circular shape. A fourth motor is fixedly installed on the movable platform, and the fourth motor is located below the sampling cylinder, and the fourth motor is connected to the turntable power.

9. A sampling device according to claim 8, characterized in that: The sampling tube is located below the row tube, the receiving member is connected to the third motor signal, the trigger member is connected to the fourth motor signal, and the number of the sampling tubes is the same as the number of the trigger members.

10. A drilling sampling method for geological exploration, characterized in that: The sampling device according to any one of claims 1 to 9 is used.

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