Portable sampling device for geological mineral exploration and sampling method thereof

Abstract

The invention relates to the technical field of sampling, in particular to a portable sampling device for geological mineral exploration and a sampling method thereof.The portable sampling device comprises a bottom plate, guide frames, a lifting plate and the like, the two guide frames are connected to the top of the bottom plate, and the lifting plate is jointly connected to the two guide frames in a sliding mode. A rock core drill bit can be driven to move downwards through a screw rod motor, the rock core drill bit drills into soil, the soil enters a sampling pipe for sampling, a standby sampling pipe can be driven to move backwards through an electric guide rail, the standby sampling pipe is moved to the position below a mounting pipe, and the sampling pipe is spliced; the sampling pipe can be driven to move forwards through the electric guide rail, the sampling pipe can be disassembled, the sampling pipe can be automatically spliced and disassembled, operation is simpler, the burden of workers can be relieved, and therefore the sampling efficiency can be improved.

Description

Technical Field

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

[0002] During geological and mineral exploration, soil sampling is generally used to evaluate the existence, distribution and reserves of underground mineral resources, helping geologists and mineral explorers obtain information about mineral deposits in order to find potential mineral resources in surface or near-surface environments.

[0003] In the process of geological and mineral exploration, soil sampling is generally carried out using a sampling drill. The core drill bit is drilled into the soil to allow the soil to enter the sampling tube for sampling. The sampling tubes are spliced ​​together to obtain soil at different depths underground. The two adjacent sampling tubes are connected by threads. During the sampling process, the sampling tubes need to be manually spliced ​​and disassembled. In addition, the sampling tubes filled with soil are relatively heavy, which increases the workload and operational complexity and reduces the sampling efficiency. Secondly, the sampling tubes need to be carried separately, which takes up additional space and transportation resources and is not portable enough. Summary of the invention

[0004] In order to overcome the shortcomings that sampling tubes need to be manually spliced ​​and disassembled during the sampling process, and the sampling tubes filled with soil are relatively heavy, which increases the workload and operation complexity and reduces the sampling efficiency, the present invention provides a portable sampling device and a sampling method for geological and mineral exploration.

[0005] In order to solve the above technical problems, the present invention provides a portable sampling device for geological and mineral exploration, including a base plate, a guide frame and a lifting plate, two guide frames are connected to the top of the base plate, and the lifting plate is slidably connected to the two guide frames, and also includes a screw motor, a mounting tube, a servo motor, a sampling tube, a core drill bit and a loading mechanism, the screw motor is fixedly installed on the top surface of the base plate, the screw of the screw motor and the lifting plate are connected by threads, and the mounting tube is rotatably connected on the lifting plate, the servo motor is fixedly installed on the top of the lifting plate, and the servo motor The output shaft is connected to the mounting tube, and the sampling tube and the core drill bit are both connected with a docking sleeve, and the docking sleeve is provided with a card slot on both sides, and the mounting tube and the sampling tube are both slidably connected with a card block on both sides, and the card block can be inserted into the card slot to connect the sampling tube and the core drill bit; the bottom of the card block is an inclined surface, and the card block is connected with a first spring, the first spring in the mounting tube is connected with the mounting tube, and the first spring in the sampling tube is connected with the sampling tube, and the mounting tube and the sampling tube are both slidably connected with an arc plate, and the arc plate is connected with the card block, and the card block on the right side is connected with a press block;

[0006] The sampling tube is provided with multiple sections, wherein the first section of the sampling tube is connected between the mounting tube and the core drill bit, a circular hole is provided on the bottom plate for the sampling tube and the core drill bit to pass through, the loading mechanism is installed on one side of the circular hole, and after the first section of the sampling tube and the core drill bit enter the soil, the first section of the sampling tube is separated from the mounting tube, one or more sections of spare sampling tubes are installed on the mounting tube through the loading mechanism, and finally the lowest section of the spare sampling tube is connected to the first section of the sampling tube.

[0007] The preferred technical solution of the present invention: the sampling device also includes a connecting block, a sliding rod, a clamping block, a third spring and a push rod, two connecting blocks are connected to the top of the bottom plate, the two connecting blocks are both located in the installation box, the connecting blocks are slidably connected to the sliding rod, the sliding rod is connected to the clamping block for clamping the sampling tube, the third spring is connected between the connecting block and the clamping block, the left and right sides of the slider of the electric guide rail are connected to the push rod, the rear part of the push rod is inclined, the inclined part of the push rod can push the clamping block, so that the two clamping blocks move towards each other, so that the clamping block clamps the sampling tube inserted in the soil.

[0008] A better technical solution of the present invention: the sampling device also includes a guide plate, a slide plate, an insertion rod and a nitrogen spring. The guide frame is connected to the guide plate, and the slide plate is slidably connected inside the guide plate. The upper parts of the two slide plates protrude in the direction of approaching each other, and the protruding parts of the slide plates are in contact with the top of the lifting plate. The slide plates are connected to the insertion rods, which slide through the bottom plate, and a nitrogen spring is connected between the slide plates and the bottom plate.

[0009] A preferred technical solution of the present invention: the sampling device also includes a gripping rod, and the two guide frames are commonly connected with the gripping rod.

[0010] A preferred technical solution of the present invention: the sampling device also includes moving wheels, and the moving wheels are symmetrically installed on the left and right sides of the bottom of the bottom plate.

[0011] A better technical solution of the present invention: the number of teeth of the spur gear is four times the number of teeth of the spur rack, four groups of sampling tube clamping assemblies are evenly installed on the rotating tube at circumferential intervals, each group of sampling tube clamping assemblies includes a mounting block fixed on the rotating tube, a rotating block rotatably connected to the mounting block, a stepper motor driving the rotating block to rotate, and a driving mechanism for driving two clamping blocks to clamp or loosen, the driving mechanism includes two rotating shafts rotatably connected to the rotating block, the two rotating shafts on the same rotating block are driven by transmission gears, the two clamping blocks are respectively connected to the two rotating shafts, the clamping block is an arc-shaped clamping block, the stepper motor is installed on the rotating block, and one of the rotating shafts on the same rotating block and the output shaft of the stepper motor are driven by transmission gears.

[0012] The preferred technical solution of the present invention is as follows: the rotating assembly includes a second spring, a limit block, a contact plate and a contact rod; a second spring is connected between the mounting block and the rotating block; the limit blocks are connected to the mounting blocks; the limit blocks are used to limit the rotating block so that the rotating block remains in a vertical state; the contact plates are connected to the mounting columns; the contact rods are connected to the tops of the rotating blocks; the contact rods will contact the contact plates during rotation; under the action of the contact plates, the contact rods will tilt, thereby causing the rotating block to rotate; the rotating block drives the clamping block to rotate, and the sampling tube clamped by the clamping block will also rotate into a tilted state.

[0013] The present invention also provides a sampling method of a portable sampling device for geological and mineral exploration, which uses the portable sampling device for geological and mineral exploration to perform sampling, and specifically comprises the following steps:

[0014] S1. Start the servo motor, and the output shaft of the servo motor drives the first section of the sampling tube and the core drill bit originally connected to the installation tube to rotate. At the same time, the screw motor is controlled to drive the sampling tube and the core drill bit to move downward. The core drill bit drills into the soil, and the soil enters the sampling tube for sampling;

[0015] S2. After the first section of the sampling tube completely enters the soil layer, the pressing block is pressed to the right, and the pressing block drives the card block on the right to move backward. The card block on the right drives the card block on the left to move backward through the arc plate. The first spring is compressed, and the card block moves out of the card slot. Then the screw motor is controlled to drive the lifting plate to move upward, and the lifting plate drives the installation tube to move upward, so that the installation tube and the sampling tube are separated;

[0016] S3. Control the output shaft of the stepper motor to rotate, drive the shaft to rotate through the transmission gear, and the shaft drives the clamping block to rotate, and the two clamping blocks rotate in a direction close to each other, so that the two clamping blocks can clamp the spare sampling tube;

[0017] S4. Control the electric guide rail to drive the installation column and the rotating tube to move backward, thereby driving the spare sampling tube to move backward, and move the spare sampling tube to the bottom of the installation tube to splice the sampling tube; after the splicing is completed, control the screw motor to drive the installation tube to move downward, so that the assembled spare sampling tube is connected to the sampling tube in the soil, and the staff can continue to sample the soil;

[0018] S5. After the sampling is completed, the screw motor is controlled to drive the installation tube to move upward, and the installation tube drives the sampling tube and the core drill bit to move upward, and the sampling tube and the core drill bit are pulled out of the soil. After the top sampling tube is moved out of the soil, the screw motor is turned off, and then the button on the top sampling tube is pressed backward, and the screw motor is continued to be controlled to drive the installation tube to move upward, and the installation tube drives the top sampling tube to move upward, so that the top sampling tube and the sampling tube in the soil are separated;

[0019] S6. Then control the electric guide rail to drive the sampling tube clamping assembly to move to the periphery of the top sampling tube, then control the output shaft of the stepper motor to rotate, drive the rotating shaft to rotate through the transmission gear, and drive the clamping block to rotate to clamp the top sampling tube. After clamping, press the pressing block on the mounting tube backward to separate the mounting tube and the top sampling tube, and then control the electric guide rail to drive the sampling tube clamping assembly to move to remove the top sampling tube;

[0020] S7. Control the screw motor to drive the installation tube to move downward and connect it with the sampling tube in the soil, and then repeat steps S5 and S6 to disassemble each section of the sampling tube in turn to complete the sampling process.

[0021] The beneficial effects of the present invention are:

[0022] (1) The present invention can drive the core drill bit to move downward through the screw motor. The core drill bit drills into the soil, and the soil enters the sampling tube for sampling. The spare sampling tube can be driven to move backward through the electric guide rail, and the spare sampling tube is moved to the bottom of the installation tube to splice the sampling tube. The sampling tube can be driven to move forward through the electric guide rail to disassemble the sampling tube. The sampling tube is automatically spliced ​​and disassembled, which makes the operation simpler, can reduce the burden on the staff, and thus can improve the sampling efficiency.

[0023] (2) The present invention can clamp the spare sampling tube by the clamping block. The spare sampling tube is stored on the clamping block and does not need to be carried separately. It does not take up extra space and transportation resources and is more portable.

[0024] (3) The present invention can push the clamping blocks through the push rod, so that the two clamping blocks move toward each other, so that the clamping blocks clamp the sampling tube inserted in the soil, preventing the sampling tube in the soil from sliding down.

[0025] (4) The present invention can pull the slide plate downward through the nitrogen spring, and the slide plate can drive the insertion rod to move downward. The insertion rod will be inserted into the soil, so that the device can be fixed on the ground to prevent the sampling position from being offset due to the movement of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0027] Figure 2 The three-dimensional structural schematic diagram of the screw motor, the mounting tube, the sampling tube and the core drill bit in the present invention is shown.

[0028] Figure 3 A three-dimensional structural schematic diagram of the docking sleeve and the clamping slot in the present invention is shown.

[0029] Figure 4 A cross-sectional view of the sampling tube in the present invention is shown.

[0030] Figure 5 The three-dimensional structural schematic diagram of the clamping block, the inclined plane, the arc plate and the pressing block in the present invention is shown.

[0031] Figure 6 A three-dimensional structural schematic diagram of the charging mechanism in the present invention is shown.

[0032] Figure 7 The three-dimensional structural schematic diagram of the installation box, the rotating tube and the clamping block in the present invention is shown.

[0033] Figure 8 A cross-sectional view of the installation box of the present invention is shown.

[0034] Fig. 9 The three-dimensional structural schematic diagram of the mounting block, the rotating block, the contact plate and the contact rod in the present invention is shown.

[0035] Fig.10 The three-dimensional structural schematic diagram of the rotating shaft, the stepping motor, the second spring and the limit block in the present invention is shown.

[0036] Fig.11 The figure shows the inclined state of the clamping block in the present invention.

[0037] Fig.12 The three-dimensional structural schematic diagram of the connecting block, the sliding rod, the clamping block, the third spring and the push rod in the present invention is shown.

[0038] Fig.13 The three-dimensional structural schematic diagram of the guide plate, the slide plate, the insertion rod and the nitrogen spring in the present invention is shown.

[0039] Fig.14 The three-dimensional structural schematic diagram of the slide plate and the insertion rod in the present invention is shown.

[0040] Description of reference numerals: 1: bottom plate, 2: guide frame, 3: lifting plate, 4: screw motor, 5: mounting tube, 6: servo motor, 7: sampling tube, 8: core drill bit, 9: docking sleeve, 91: slot, 10: block, 101: inclined plane, 11: first spring, 12: arc plate, 13: press block, 14: mounting box, 15: electric guide rail, 16: mounting column, 17: rotating tube, 18: spur gear, 19: Spur rack, 20: mounting block, 21: rotating block, 22: rotating shaft, 23: clamping block, 24: stepping motor, 25: second spring, 26: limit block, 27: contact plate, 28: contact rod, 29: connecting block, 30: sliding rod, 31: clamping block, 32: third spring, 33: push rod, 34: guide plate, 35: slide plate, 36: insertion rod, 37: nitrogen spring, 38: grip rod, 39: moving wheel. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Figures 1 to 14 The drawings are all of embodiments, which are drawn in a simplified manner and are only used for the purpose of clearly and concisely illustrating the embodiments of the present invention. The technical solutions shown in the following drawings are specific solutions of the embodiments of the present invention and are not intended to limit the scope of the invention claimed for protection. 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.

[0042] In the description of the present invention, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The embodiment provides a portable sampling device for geological and mineral exploration, such as Figure 1-Figure 11As shown, it includes a base plate 1, a guide frame 2, a lifting plate 3, a screw motor 4, a mounting tube 5, a servo motor 6, a sampling tube 7, a core drill bit 8, a docking sleeve 9, a clamping block 10, a first spring 11, an arc plate 12, a pressing block 13 and a loading mechanism. The left and right sides of the top of the base plate 1 are connected with the guide frame 2 by bolts, and the two guide frames 2 are slidably connected with the lifting plates 3. The screw motor 4 is installed on the rear side of the top of the base plate 1 by bolts. The screw of the screw motor 4 and the lifting plate 3 are connected by threads. The middle part of the lifting plate 3 is rotatably connected with the mounting tube 5. The servo motor 6 is installed in the middle of the top of the lifting plate 3 by bolts. The output shaft of the servo motor 6 and the upper end of the mounting tube 5 are connected by a coupling. The upper ends of the sampling tube 7 and the core drill bit 8 are connected with the docking sleeve 9. The docking sleeve 9 has a clamping groove 91 on the left and right sides. Blocks 10 are slidably connected to the left and right sides of the lower part of the sampling tube 7. A circular hole is opened on the bottom plate 1 for the sampling tube 7 and the core drill bit 8 to pass through. The bottom of the block 10 is an inclined surface 101. The upper and lower sides of the rear side of the block 10 are connected with a first spring 11. The first spring 11 in the mounting tube 5 is connected to the mounting tube 5. The first spring 11 in the sampling tube 7 is connected to the sampling tube 7. The mounting tube 5 and the rear side of the lower part of the sampling tube 7 are slidably connected with an arc plate 12. The arc plate 12 is connected to the block 10. The front side of the block 10 on the right side is connected with a pressing block 13. The front side of the pressing block 13 is an arc surface. The arc surface on the pressing block 13 is adapted to the arc surface outside the sampling tube 7. Therefore, when the sampling tube 7 is inserted into the soil, the pressing block 13 will not hinder the sampling tube 7. A loading mechanism for mounting the sampling tube 7 on the mounting tube 5 is provided on the bottom plate 1.

[0045] The embodiment provides a portable sampling device for geological and mineral exploration, such as Figure 6-Figure 11As shown, the loading mechanism includes an installation box 14, an electric guide rail 15, a mounting column 16, a rotating tube 17, a spur gear 18, a spur rack 19, a mounting block 20, a rotating block 21, a rotating shaft 22, a clamping block 23, a stepping motor 24 and a rotating assembly. The top of the base plate 1 is connected to the installation box 14 by bolts, the electric guide rail 15 is installed on the front side of the top of the base plate 1 by bolts, the electric guide rail 15 is located in the installation box 14, the top of the slider of the electric guide rail 15 is connected to the installation column 16, the rotating tube 17 is rotatably connected to the installation column 16, the top of the installation box 14 is provided with an opening for the sampling tube 7, the core drill bit 8 and the rotating tube 17 to move, the lower part of the rotating tube 17 is connected to the spur gear 18 through a one-way clutch, the front side of the top of the base plate 1 is connected to the spur rack 19 by bolts, and the spur gear 18 will mesh with the spur rack 19 during the backward movement The number of teeth of the spur gear 18 is four times the number of teeth of the spur rack 19. Four mounting blocks 20 are evenly spaced circumferentially connected to the upper part of the rotating tube 17. The four mounting blocks 20 are rotatably connected to the rotating blocks 21 on the sides away from each other. The four rotating blocks 21 are rotatably connected to the two rotating shafts 22 on the sides away from each other. The two rotating shafts 22 on the same rotating block 21 are driven by transmission gears. The rotating shafts 22 are connected to clamping blocks 23. The clamping blocks 23 are arc-shaped and can better match the outer contour of the sampling tube 7, so as to better clamp the sampling tube 7. A stepper motor 24 is installed on the top of the rotating block 21 by bolts. One of the rotating shafts 22 on the same rotating block 21 and the output shaft of the stepper motor 24 are driven by transmission gears. A rotating component for controlling the rotation of the sampling tube 7 clamped by the clamping block 23 is provided on the mounting column 16.

[0046] The embodiment provides a portable sampling device for geological and mineral exploration, such as Figure 9-11 As shown, the rotating assembly includes a second spring 25, a limit block 26, a contact plate 27 and a contact rod 28. The second spring 25 is connected between the mounting block 20 and the rotating block 21. The lower part of the mounting block 20 is connected to the limit block 26, the upper part of the mounting column 16 is connected to the contact plate 27, and the top of the rotating block 21 is connected to the contact rod 28.

[0047] The embodiment provides a portable sampling device for geological and mineral exploration, such as Figure 1 As shown, the sampling device also includes a gripping rod 38, and the rear sides of the two guide frames 2 are connected to the gripping rod 38 by bolts. Moving wheels 39 are symmetrically installed on both the left and right sides of the bottom of the bottom plate 1.

[0048] The sampling tube described in the embodiment is provided with multiple sections, wherein the first section of the sampling tube is connected between the mounting tube and the core drill bit, a circular hole is provided on the bottom plate for the sampling tube and the core drill bit to pass through, the loading mechanism is installed on one side of the circular hole, and after the sampling tube and the core drill bit enter the soil, the first section of the sampling tube is disassembled from the mounting tube, and after one or more sections of spare sampling tubes are installed on the mounting tube through the loading mechanism, the lowest section of the spare sampling tube is connected to the first section of the sampling tube.

[0049] The specific steps of the above process are as follows: the staff puts the spare sampling tube 7 between the two clamping blocks 23, and then controls the output shaft of the stepper motor 24 to rotate, and drives the rotating shaft 22 to rotate through the transmission gear, and the rotating shaft 22 drives the clamping block 23 to rotate, and the two clamping blocks 23 rotate in the direction of approaching each other, so that the two clamping blocks 23 can clamp the spare sampling tube 7. The staff then holds the grip 38 to move the bottom plate 1 to move the device to the sampling location. The moving wheel 39 rolls on the ground to reduce friction and facilitate the staff to move the device. The spare sampling tube 7 is clamped on the clamping block 23 and does not need to be carried separately, which will not take up additional space and transportation resources and is more portable. After the device is moved to the sampling location, the servo is started again. The servo motor 6, the output shaft of the servo motor 6 drives the mounting tube 5 to rotate, thereby driving the sampling tube 7 and the core drill bit 8 to rotate. At the same time, the screw motor 4 is controlled to drive the lifting plate 3 to move downward, and the lifting plate 3 drives the mounting tube 5 to move downward, thereby driving the sampling tube 7 and the core drill bit 8 to move downward. The core drill bit 8 drills into the soil, and the soil will enter the sampling tube 7 for sampling. After all the sampling tubes 7 on the mounting tube 5 enter the soil, the staff presses the button 13 to the right, and the button 13 drives the card block 10 on the right to move backward. The card block 10 on the right drives the card block 10 on the left to move backward through the arc plate 12. The first spring 11 is compressed, and the card block 10 moves out of the card slot 91. Then the screw motor 4 is controlled to drive the lifting plate 3 to move upward, and the lifting plate 3 drives the mounting tube 5 to move downward. The installation tube 5 moves upward to disengage the installation tube 5 and the sampling tube 7, and then the electric guide rail 15 is controlled to drive the installation column 16 and the rotating tube 17 to move backward. The rotating tube 17 drives the spur gear 18 and the installation block 20 to move backward. The spur gear 18 rolls on the spur rack 19, and the spur gear 18 rotates. Under the action of the one-way clutch, the spur gear 18 will not drive the rotating tube 17 to rotate. After the spur gear 18 moves backward and disengages from the spur rack 19, the spur gear 18 stops rotating. The installation block 20 moves backward to drive the clamping block 23 to move backward, thereby driving the spare sampling tube 7 to move backward, and moving the spare sampling tube 7 to below the installation tube 5. At this time, the control screw motor 4 drives the lifting plate 3 to move downward, and the lifting plate 3 drives the installation tube 5 to move downward. The docking sleeve 9 on the sampling tube 7 will enter the mounting tube 5, and the inclined surface 101 on the clamping block 10 on the mounting tube 5 will contact the docking sleeve 9 on the spare sampling tube 7, which will cause the clamping block 10 on the mounting tube 5 to move backward. When the first spring 11 is compressed and the clamping block 10 on the mounting tube 5 corresponds to the clamping groove 91, under the action of the first spring 11, the clamping block 10 on the mounting tube 5 will move forward and be inserted into the clamping groove 91, so as to connect the mounting tube 5 and the spare sampling tube 7. After the connection is completed, the output shaft of the stepping motor 24 is controlled to rotate in the opposite direction, and the rotating shaft 22 is driven to rotate in the opposite direction through the transmission gear. The rotating shaft 22 drives the clamping block 23 to rotate in the opposite direction, and the two clamping blocks 23 rotate in the direction away from each other, so that the two clamping blocks 23 can loosen the spare sampling tube 7.Then the electric guide rail 15 is controlled to drive the installation column 16 and the rotating tube 17 to move forward, and the rotating tube 17 drives the spur gear 18 to move forward. When the spur gear 18 moves forward and engages with the spur rack 19, it rolls on the spur gear 18 and the spur rack 19, and the spur gear 18 rotates in the opposite direction. The spur gear 18 will drive the rotating tube 17 to rotate, and the rotating tube 17 drives the clamping block 23 to rotate, and the clamping block 23 drives the spare sampling tube 7 to rotate. After the spur gear 18 moves forward and disengages from the spur rack 19, the spur gear 18 stops rotating. The number of teeth of the spur gear 18 is four times the number of teeth of the spur rack 19, so the spur gear 18 rotates exactly 90 degrees, and the spare sampling tube 7 also rotates exactly 90 degrees, so that the spare sampling tube 7 and the installation tube 5 can be aligned. Repeat the above operation and continue to install the spare sampling tube 7 on the installation tube 5. After installation, control the screw motor 4 to drive the installation tube 5 to move downward, and the docking sleeve 9 on the sampling tube 7 in the soil will enter the spare sampling tube 7. The inclined surface 101 on the block 10 on the spare sampling tube 7 will contact the docking sleeve 9 on the sampling tube 7 in the soil, which will cause the block 10 on the spare sampling tube 7 to move backward. When the first spring 11 is compressed and the block 10 on the spare sampling tube 7 corresponds to the card slot 91, under the action of the first spring 11, the block 10 on the spare sampling tube 7 will move forward and be inserted into the card slot 91, connecting the sampling tube 7 in the soil and the spare sampling tube 7. At this time, the staff can continue to sample the soil.

[0050] After the soil sampling is completed, the screw motor 4 is controlled to drive the installation tube 5 to move upward, and the installation tube 5 drives the sampling tube 7 and the core drill bit 8 to move upward, and the sampling tube 7 and the core drill bit 8 are pulled out of the soil. After the top sampling tube 7 is moved out of the soil, the staff turns off the screw motor 4, and then presses the button 13 on the top sampling tube 7 backward, and the button 13 drives the card block 10 to move backward, and the card block 10 moves out of the card slot 91, and continues to control the screw motor 4 to drive the installation tube 5 to move upward, and the installation tube 5 drives the top sampling tube 7 to move upward, so that the top sampling tube 7 and the sampling tube 7 in the soil are separated, and then the electric guide rail 15 is controlled to drive the installation column 16 to move backward, and the installation column 16 drives the clamping block 23 to move backward, and the two clamping blocks 2 3 moves to the periphery of the top sampling tube 7, and then controls the output shaft of the stepper motor 24 to rotate, and drives the rotating shaft 22 to rotate through the transmission gear, and the rotating shaft 22 drives the clamping block 23 to rotate, and the two clamping blocks 23 rotate in the direction of approaching each other, so that the two clamping blocks 23 can clamp the top sampling tube 7. After clamping, press the pressing block 13 on the mounting tube 5 backward, and the pressing block 13 drives the clamping block 10 to move backward, and the clamping block 10 moves out of the clamping slot 91, and continues to control the screw motor 4 to drive the mounting tube 5 to move upward, so that the mounting tube 5 and the top sampling tube 7 are separated. At this time, control the electric guide rail 15 to drive the mounting column 16 and the rotating tube 17 to move forward, thereby driving the top sampling tube 7 to move forward, remove the top sampling tube 7, and rotate the tube 17. 7 moves forward and drives the spur gear 18 to move forward. When the spur gear 18 moves forward and meshes with the spur rack 19, it rolls on the spur gear 18 and the spur rack 19. The spur gear 18 rotates in the opposite direction. The spur gear 18 drives the rotating tube 17 to rotate. The rotating tube 17 drives the clamping block 23 to rotate. The clamping block 23 drives the uppermost sampling tube 7 to rotate. The rotation of the rotating tube 17 can also drive the contact rod 28 to rotate. The contact rod 28 contacts the contact plate 27 during the rotation. Under the action of the contact plate 27, the contact rod 28 tilts, thereby causing the rotating block 21 to rotate. The second spring 25 is stretched, and the rotating block 21 drives the clamping block 23 to rotate. The uppermost sampling tube 7 also rotates, and the uppermost sampling tube 7 is rotated to a tilted state. At this time, the electric guide rail is closed. 15, the spur gear 18 and the spur rack 19 are still in meshing state, so that the top sampling tube 7 remains in an inclined state. The collected soil may contain long strips of rocks. The top sampling tube 7 remains in an inclined state, which can extend the distance between the lower end of the top sampling tube 7 and the ground, making it convenient to discharge the long strips of rocks. After all the soil in the top sampling tube 7 is discharged, the electric guide rail 15 is continued to be controlled to drive the mounting column 16 to move forward, so that the spur gear 18 continues to move forward, and the contact rod 28 continues to rotate. After the contact rod 28 and the contact plate 27 are out of contact, under the action of the second spring 25, the rotating block 21 rotates in the opposite direction to reset, and the rotating block 21 drives the clamping block 23 to rotate in the opposite direction to reset, and the limit block 26 can limit the rotating block 21.The rotating block 21 can be kept in a vertical state, so that the clamping block 23 can clamp the sampling tube 7. After the spur gear 18 moves forward and disengages the spur rack 19, the spur gear 18 stops rotating, and then the above operation is repeated to continue to disassemble the sampling tube 7. The sampling tube 7 is automatically spliced ​​and disassembled, which is simpler to operate and can reduce the burden on the staff, thereby improving the sampling efficiency.

[0051] like Fig.12 As shown, the portable sampling device for geological and mineral exploration in the embodiment also includes a connecting block 29, a slide bar 30, a clamping block 31, a third spring 32 and a push rod 33. The left and right sides of the top of the bottom plate 1 are connected to the connecting blocks 29 by bolts. The two connecting blocks 29 are both located in the installation box 14. The connecting blocks 29 are slidably connected to the slide bars 30. The slide bars 30 are rectangular, so the slide bars 30 will not rotate on the connecting blocks 29. The ends of the two slide bars 30 that are close to each other are connected to the clamping blocks 31. The clamping blocks 31 are arc-shaped, which can better match the outer contour of the sampling tube 7, so that the sampling tube 7 can be better clamped. The slide bars 30 are sleeved with third springs 32, and the two ends of the third springs 32 are respectively connected to the connecting blocks 29 and the clamping blocks 31. The third spring 32 is sleeved on the slide bars 30 to avoid the bending of the third spring 32. The left and right sides of the slider of the electric guide rail 15 are connected to push rods 33, and the rear parts of the push rods 33 are inclined.

[0052] The sampling tube 7 and the core drill bit 8 in the present invention are both hollow tubular structures. During the sampling process, the soil sample enters the sampling tube 7 through the opening at the bottom of the core drill bit 8. During the soil sampling process, the core drill bit 8 will open a deep groove on the ground. When the sampling tube 7 is disassembled, the sampling tube 7 in the soil may slide down; when the electric guide rail 15 drives the mounting column 16 to move backward, the push rod 33 will also move backward, and the inclined part of the push rod 33 can push the clamping block 31, so that the two clamping blocks 31 move in a direction close to each other, so that the clamping block 31 will be inserted into the soil The sampling tube 7 is clamped to prevent the sampling tube 7 in the soil from sliding down. When the third spring 32 is stretched and the electric guide rail 15 drives the mounting column 16 to move forward, the push rod 33 will also move forward. When the inclined part of the push rod 33 is not out of contact with the clamping block 31, the mounting tube 5 and the sampling tube 7 in the soil are connected. When the inclined part of the push rod 33 is out of contact with the clamping block 31, under the action of the third spring 32, the two clamping blocks 31 will move away from each other, loosening the sampling tube 7 in the soil, so that the mounting tube 5 can pull the sampling tube 7 in the soil out.

[0053] like Fig.13 and Fig.14As shown, the portable sampling device for geological and mineral exploration in the embodiment also includes a guide plate 34, a slide plate 35, an insertion rod 36 and a nitrogen spring 37. The two guide frames 2 are connected to the guide plate 34 on the sides away from each other by bolts. The slide plates 35 are slidably connected inside the guide plates 34. The upper parts of the two slide plates 35 protrude in the direction of approaching each other. The protruding parts of the slide plates 35 are in contact with the top of the lifting plate 3. The front and rear sides of the bottom of the slide plate 35 are connected to the insertion rods 36. The insertion rods 36 slide through the bottom plate 1. The four insertion rods 36 are distributed at the four corners of the bottom plate 1, which can better stabilize the position of the bottom plate 1 and better fix the bottom plate 1 to the ground. Nitrogen springs 37 are connected between the front and rear sides of the lower part of the slide plate 35 and the top of the bottom plate 1.

[0054] Initially, the protruding part of the slide plate 35 contacts the top of the lifting plate 3, and the nitrogen spring 37 is in a stretched state; when the lifting plate 3 moves downward, the lifting plate 3 will lose contact with the protruding part of the slide plate 35, and under the action of the nitrogen spring 37, the slide plate 35 will move downward, and the slide plate 35 will drive the insertion rod 36 to move downward, and the insertion rod 36 will be inserted into the soil, so that the device can be fixed on the ground to prevent the sampling position from being offset due to the movement of the device. When the lifting plate 3 moves upward, the lifting plate 3 will contact the protruding part of the slide plate 35, and the lifting plate 3 will push the slide plate 35 to move upward, the nitrogen spring 37 will stretch, and the slide plate 35 will drive the insertion rod 36 to move upward, and pull the insertion rod 36 out of the soil.

[0055] The present invention also provides a sampling method of a portable sampling device for geological and mineral exploration, comprising the following steps:

[0056] S1. Start the servo motor 6. The output shaft of the servo motor 6 drives the first section of the sampling tube and the core drill bit 8 originally connected to the mounting tube to rotate. At the same time, the screw motor 4 is controlled to drive the first section of the sampling tube and the core drill bit 8 to move downward. The core drill bit 8 drills into the soil, and the soil enters the first section of the sampling tube for sampling;

[0057] S2. After the first section of the sampling tube completely enters the soil layer, the pressing block 13 is pressed to the right, and the pressing block 13 drives the card block 10 on the right to move backward, and the card block 10 on the right drives the card block 10 on the left to move backward through the arc plate 12, and the first spring 11 is compressed, and the card block 10 moves out of the card slot 91, and then the screw motor 4 is controlled to drive the lifting plate 3 to move upward, and the lifting plate 3 drives the installation tube 5 to move upward, so that the installation tube 5 and the sampling tube 7 are separated;

[0058] S3. The output shaft of the stepper motor 24 is controlled to rotate, and the shaft 22 is driven to rotate through the transmission gear, and the shaft 22 drives the clamping block 23 to rotate, and the two clamping blocks 23 are rotated in a direction close to each other, so that the two clamping blocks 23 can clamp the spare sampling tube 7;

[0059] S4. Control the electric guide rail 15 to drive the mounting column 16 and the rotating tube 17 to move backward, thereby driving the spare sampling tube 7 to move backward, and move the spare sampling tube 7 to the bottom of the mounting tube 5, and splice the sampling tube 7; one or more sampling tubes can be spliced ​​according to the sampling depth, and the splicing process is the same. After the splicing is completed, control the screw motor 4 to drive the mounting tube 5 to move downward, so that the assembled spare sampling tube is connected to the sampling tube in the soil, and the staff can continue to sample the soil;

[0060] S5. After the sampling is completed, the screw motor 4 is controlled to drive the installation tube 5 to move upward, and the installation tube 5 drives the sampling tube and the core drill bit to move upward, and the sampling tube and the core drill bit are pulled out of the soil. After the top sampling tube is moved out of the soil, the screw motor 4 is turned off, and then the button on the top sampling tube is pressed backward, and the screw motor 4 is continued to be controlled to drive the installation tube 5 to move upward, and the installation tube 5 drives the top sampling tube to move upward, so that the top sampling tube and the sampling tube in the soil are separated;

[0061] S6. Then control the electric guide rail 15 to drive the sampling tube clamping assembly to move to the periphery of the top sampling tube, then control the output shaft of the stepper motor to rotate, drive the shaft to rotate through the transmission gear, and drive the clamping block to rotate to clamp the top sampling tube. After clamping, press the block on the mounting tube backward to separate the mounting tube 5 and the top sampling tube, and then control the electric guide rail 15 to drive the sampling tube clamping assembly to move to remove the top sampling tube;

[0062] S7. Control the screw motor 4 to drive the installation tube 5 to move downward and connect it with the sampling tube in the soil, and then repeat steps S5 and S6 to disassemble each section of the sampling tube in turn to complete the sampling process.

[0063] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A portable sampling device for geological and mineral exploration, comprising a bottom plate (1), a guide frame (2) and a lifting plate (3), wherein two guide frames (2) are connected to the top of the bottom plate (1), and the lifting plate (3) is slidably connected to the two guide frames (2), characterized in that: The invention also comprises a screw motor (4), a mounting tube (5), a servo motor (6), a sampling tube (7), a core drill bit (8) and a loading mechanism, wherein the screw motor (4) is fixedly mounted on the top surface of the base plate (1), the screw of the screw motor (4) and the lifting plate (3) are connected by threads, a mounting tube (5) is rotatably connected on the lifting plate (3), the servo motor (6) is fixedly mounted on the top of the lifting plate (3), the output shaft of the servo motor (6) is connected to the mounting tube (5), the sampling tube (7) and the core drill bit (8) are both connected to a docking sleeve (9), the left and right sides of the docking sleeve (9) are both provided with a card slot (91), the mounting tube (5) and the sampling tube (7) are slidably connected with a card block (10) on both the left and right sides, and the card block (10) can be inserted into the card slot (91) to connect the sampling tube (7) and the core drill bit (8); the bottom of the card block (10) is an inclined surface (101), and the card block (10) is connected with a first spring (11), the first spring (11) in the mounting tube (5) is connected to the mounting tube (5), and the first spring (11) in the sampling tube (7) is connected to the sampling tube (7), and the mounting tube (5) and the sampling tube (7) are slidably connected with an arc plate (12), and the arc plate (12) is connected to the card block (10), and the card block (10) on the right side is connected with a pressing block (13); The sampling tube (7) is provided with multiple sections, wherein the first section of the sampling tube is connected between the mounting tube (5) and the core drill bit (8), the bottom plate (1) is provided with a circular hole for the sampling tube (7) and the core drill bit (8) to pass through, the loading mechanism is installed on one side of the circular hole, and after the first section of the sampling tube and the core drill bit (8) enter the soil, the first section of the sampling tube is separated from the mounting tube (5), one or more sections of spare sampling tubes are installed on the mounting tube (5) by the loading mechanism, and finally the lowest section of the spare sampling tube is connected to the first section of the sampling tube.

2. A portable sampling device for geological and mineral exploration according to claim 1, characterized in that: The loading mechanism comprises an installation box (14), a rotating tube (17) and a sampling tube clamping assembly. The installation box (14) is fixedly installed on a base plate (1). An electric guide rail (15) is installed on the top of the base plate (1). The electric guide rail (15) is located in the installation box (14). The top of the slider of the electric guide rail (15) is connected to a mounting column (16). The rotating tube (17) is rotatably connected to the mounting column (16). A sampling tube (7), a core drill bit (8) and a rotating tube are provided on the top of the installation box (14). The rotating tube (17) is provided with an opening for movement of the rotating tube (17), a spur gear (18) is connected to the rotating tube (17) via a one-way clutch, a spur rack (19) is connected to the top of the bottom plate (1), and the spur gear (18) meshes with the spur rack (19) during the backward movement; a plurality of sampling tube clamping assemblies are axially mounted on the rotating tube (17), the sampling tube clamping assemblies include two clamping blocks (23), and a rotating assembly for controlling the rotation of the sampling tube (7) clamped by the clamping blocks (23) is provided on the mounting column (16).

3. A portable sampling device for geological and mineral exploration according to claim 2, characterized in that: The sampling device further comprises a connecting block (29), a sliding rod (30), a clamping block (31), a third spring (32) and a push rod (33). The top of the bottom plate (1) is connected to two connecting blocks (29), the two connecting blocks (29) are both located in the installation box (14), the connecting blocks (29) are both slidably connected to the sliding rod (30), the sliding rod (30) is both connected to the clamping block (31) for clamping the sampling tube (7), the third spring (32) is connected between the connecting block (29) and the clamping block (31), the left and right sides of the slider of the electric guide rail (15) are both connected to the push rod (33), the rear part of the push rod (33) is tilted, and the tilted part of the push rod (33) can push the clamping block (31) to move the two clamping blocks (31) in a direction close to each other, so that the clamping block (31) clamps the sampling tube (7) inserted in the soil.

4. A portable sampling device for geological and mineral exploration according to claim 1 or 2, characterized in that: The sampling device further comprises a guide plate (34), a slide plate (35), an insertion rod (36) and a nitrogen spring (37). The guide frame (2) is connected with the guide plate (34). The guide plate (34) is slidably connected with the slide plate (35). The upper parts of the two slide plates (35) protrude in a direction approaching each other. The protruding parts of the slide plates (35) are in contact with the top of the lifting plate (3). The slide plates (35) are connected with the insertion rod (36). The insertion rod (36) slides through the bottom plate (1). The nitrogen spring (37) is connected between the slide plates (35) and the bottom plate (1).

5. A portable sampling device for geological and mineral exploration according to claim 1 or 2, characterized in that: The sampling device also includes a gripping rod (38), and the two guide frames (2) are commonly connected to the gripping rod (38).

6. A portable sampling device for geological and mineral exploration according to claim 1 or 2, characterized in that: The sampling device also includes moving wheels (39), and the moving wheels (39) are symmetrically installed front and back on both left and right sides of the bottom of the bottom plate (1).

7. A portable sampling device for geological and mineral exploration according to claim 2, characterized in that: The number of teeth of the spur gear (18) is four times the number of teeth of the spur rack (19). Four groups of sampling tube clamping assemblies are evenly spaced circumferentially mounted on the rotating tube (17). Each group of sampling tube clamping assemblies comprises a mounting block (20) fixed on the rotating tube (17), a rotating block (21) rotatably connected to the mounting block (20), a stepping motor (24) for driving the rotating block (21) to rotate, and a driving mechanism for driving two clamping blocks (23) to clamp or release. The driving mechanism The invention comprises two rotating shafts (22) rotatably connected to a rotating block (21), the two rotating shafts (22) on the same rotating block (21) are driven by transmission gears, two clamping blocks (23) are respectively connected to the two rotating shafts (22), the clamping blocks (23) are arc-shaped clamping blocks, the stepping motor (24) is mounted on the rotating block (21), and one of the rotating shafts (22) on the same rotating block (21) and the output shaft of the stepping motor (24) are driven by transmission gears.

8. The portable sampling device for geological and mineral exploration according to claim 2 is characterized in that: The rotating assembly comprises a second spring (25), a limit block (26), a contact plate (27) and a contact rod (28); the second spring (25) is connected between the mounting block (20) and the rotating block (21); the limit block (26) is connected to the mounting block (20); the limit block (26) is used to limit the rotating block (21) so that the rotating block (21) remains in a vertical state; the mounting column (16) is connected to the contact plate (27); the top of the rotating block (21) is connected to the contact rod (28); the contact rod (28) contacts the contact plate (27) during the rotation process; under the action of the contact plate (27), the contact rod (28) tilts, thereby rotating the rotating block (21); the rotating block (21) drives the clamping block (23) to rotate, and the sampling tube (7) clamped by the clamping block (23) also rotates into a tilted state.

9. A sampling method of a portable sampling device for geological and mineral exploration, characterized in that Sampling using the portable sampling device for geological and mineral exploration according to claim 3 specifically comprises the following steps: S1. Start the servo motor, and the output shaft of the servo motor drives the first section of the sampling tube and the core drill bit originally connected to the installation tube to rotate. At the same time, the screw motor is controlled to drive the sampling tube and the core drill bit to move downward. The core drill bit drills into the soil, and the soil enters the sampling tube for sampling; S2. After the first section of the sampling tube completely enters the soil layer, the pressing block is pressed to the right, and the pressing block drives the card block on the right to move backward. The card block on the right drives the card block on the left to move backward through the arc plate. The first spring is compressed, and the card block moves out of the card slot. Then the screw motor is controlled to drive the lifting plate to move upward, and the lifting plate drives the installation tube to move upward, so that the installation tube and the sampling tube are separated; S3. Control the output shaft of the stepper motor to rotate, drive the shaft to rotate through the transmission gear, and the shaft drives the clamping block to rotate, and the two clamping blocks rotate in a direction close to each other, so that the two clamping blocks can clamp the spare sampling tube; S4. Control the electric guide rail to drive the installation column and the rotating tube to move backward, thereby driving the spare sampling tube to move backward, and move the spare sampling tube to the bottom of the installation tube to splice the sampling tube; after the splicing is completed, control the screw motor to drive the installation tube to move downward, so that the assembled spare sampling tube is connected to the sampling tube in the soil, and the staff can continue to sample the soil; S5. After the sampling is completed, the screw motor is controlled to drive the installation tube to move upward, and the installation tube drives the sampling tube and the core drill bit to move upward, and the sampling tube and the core drill bit are pulled out of the soil. After the top sampling tube is moved out of the soil, the screw motor is turned off, and then the button on the top sampling tube is pressed backward, and the screw motor is continued to be controlled to drive the installation tube to move upward, and the installation tube drives the top sampling tube to move upward, so that the top sampling tube and the sampling tube in the soil are separated; S6. Then control the electric guide rail to drive the sampling tube clamping assembly to move to the periphery of the top sampling tube, then control the output shaft of the stepper motor to rotate, drive the rotating shaft to rotate through the transmission gear, and drive the clamping block to rotate to clamp the top sampling tube. After clamping, press the pressing block on the mounting tube backward to separate the mounting tube and the top sampling tube, and then control the electric guide rail to drive the sampling tube clamping assembly to move to remove the top sampling tube; S7. Control the screw motor to drive the installation tube to move downward and connect it with the sampling tube in the soil, and then repeat steps S5 and S6 to disassemble each section of the sampling tube in turn to complete the sampling process.

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