Soil sampling device and sampling method for geological exploration

Abstract

The present invention relates to the technical field of soil sampling, and in particular to a soil sampling device and sampling method for geological exploration, including a support, a lower support, a pressure plate, an internal threaded sleeve, a drill rod, a sample push rod, etc.; the support is installed with a lower support, the lower support is slidably connected with a pressure plate, the pressure plate is rotatably connected with an internal threaded sleeve, the internal threaded sleeve is threadedly connected with a drill rod, the internal threaded sleeve is slidably connected with a sample push rod, and the sample push rod is used to push out the soil sample in the drill rod. The device can automatically realize the drilling in and out of the drill rod and the pushing out of the soil sample, the operation is simple and labor-saving, and the power of the driving source can be selectively transmitted to different positions to realize different functions.

Description

Technical Field

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

[0002] In the field of geological exploration, soil sampling is a vital task, which is directly related to the accuracy and reliability of exploration data. Commonly used soil samplers include soil drills, shovels and spades. The soil drill consists of a drill bit and a handle made of hard material. The drill bit is often spiral or cylindrical. The cylindrical drill bit will cut the soil into a cylindrical shape and bring it out of the ground during the drilling process. Then the soil sample in the drill rod is taken out, laid flat for observation, and cut and sampled as needed.

[0003] When sampling the soil at a shallow depth, small portable soil drills are usually used because large soil drills are expensive, large in size, consume a lot of energy during operation, and operators need professional training to master the use of the drills. However, current portable soil drills will vibrate greatly when in use, and workers need to use pullers to remove the drill rods. Long-term use will cause fatigue or injury to workers and reduce the efficiency of soil sampling. Summary of the invention

[0004] In order to overcome the shortcomings of large-scale soil sampling drills and small-scale soil sampling drills in the prior art, the present invention provides a soil sampling device and a sampling method for geological exploration.

[0005] The technical solution of the present invention is: a soil sampling device for geological exploration, including a support, a lower support, a pressure plate, an internal threaded sleeve, a drill rod, a sample pushing rod and a driving mechanism, the support is installed with the lower support, the lower support is slidably connected with the pressure plate, the pressure plate is rotatably connected with the internal threaded sleeve, the drill rod is threadedly connected with the internal threaded sleeve, the sample pushing rod is slidably connected with the internal threaded sleeve, the sample pushing rod is used to push the soil sample in the drill rod, and the lower support is connected with the driving mechanism for driving the drill rod and the sample pushing rod.

[0006] As a preferred technical solution of the present invention, the driving mechanism includes an upper bracket, an upper screw, a push plate, a lower screw, a driving gear, a motor, a main bevel gear, a driven gear and a sub-drive assembly. The upper bracket is fixedly connected to the lower bracket, the upper bracket is rotatably connected to the upper screw, the upper bracket is slidably connected to the push plate, the push plate and the upper screw are threadedly connected, the lower bracket is rotatably connected to the lower screw, the pressure plate and the lower screw are threadedly connected, the lower screw is installed with a driving gear through a one-way bearing, the lower bracket is rotatably connected to a driven gear meshing with the driving gear, and the driven gear and the push rod are slidably connected, the lower bracket is fixedly connected to the motor, the motor is fixedly connected to the main bevel gear, the main bevel gear is connected to the sub-drive assembly, and the main bevel gear can selectively drive the upper screw or the lower screw to rotate through the sub-drive assembly.

[0007] As a preferred technical solution of the present invention, the split drive assembly includes a lower transmission gear, a split drive platform, a secondary bevel gear, a split drive gear, an adjustment frame, an inner gear ring and an upper transmission gear, the lower lead screw is fixedly connected to the lower transmission gear, the upper lead screw is fixedly connected to the upper transmission gear, the split drive platform is fixedly connected to the lower bracket, the split drive platform is rotatably connected to the secondary bevel gear meshing with the main bevel gear, both ends of the secondary bevel gear are fixedly connected to the split drive gear, the upper bracket is slidably connected to the adjustment frame, the adjustment frame is rotatably connected to the inner gear ring, the inner gear ring and the split drive gear are always meshed, and the inner gear ring can be meshed with the upper transmission gear or the lower transmission gear by moving the adjustment frame.

[0008] As a preferred technical solution of the present invention, it also includes a switching mechanism for automatically switching the meshing state of the inner gear ring. The switching mechanism is connected to the lower bracket. The switching mechanism includes a lifting seat, a regulating rod, an upper support rod, an outer pull block and a drive separation spring. The lifting seat is installed on the support. The lower bracket is rotatably connected to the lifting seat. The adjustment frame is slidably connected to the upper bracket through the regulating rod. The support is fixed with an outer pull block through the upper support rod. The outer pull block is used to squeeze the regulating rod to move the adjustment frame. The adjustment frame and the lower bracket are elastically connected through the drive separation spring.

[0009] As a preferred technical solution of the present invention, it also includes a supporting assembly for receiving soil samples, the supporting assembly is installed on the support, the supporting assembly includes a sample receiving frame, a first spring and a position control plate, the sample receiving frame is slidably connected to the support, the sample receiving frame and the support are elastically connected by the first spring, and the sample receiving frame is fixedly connected to the control plate that is extruded and matched with the drill rod.

[0010] As a preferred technical solution of the present invention, it also includes a vibration mechanism for driving the lifting seat to vibrate, the vibration mechanism is connected to the lifting seat, the vibration mechanism includes a guide column, a second spring, a connecting plate, a clamping ring, a block, an upper knob and a lower knob, the lifting seat is slidably connected to the support through the guide column, the guide column is sleeved with a second spring, the lifting seat is fixedly connected with a connecting plate, the connecting plate is rotatably connected with a clamping ring, the clamping ring cannot slide along the axial direction, the lower screw is fixedly connected with a clamping block that is clamped with the clamping ring, the side of the clamping ring away from the lower screw is rotatably connected with an upper knob through a one-way bearing, the support is fixedly connected with a lower knob, the upper knob and the lower knob are squeezed together to intermittently drive the lifting seat to move upward.

[0011] As a preferred technical solution of the present invention, it also includes a reset guide rod, a third spring and a support plate for providing guidance and assistance for resetting the sample push rod. The lower bracket is slidably connected to the support plate via the reset guide rod, the reset guide rod is sleeved with the third spring, and the upper end of the sample push rod passes through the support plate.

[0012] As a preferred technical solution of the present invention, it also includes an armrest, a lower support rod, a claw and a fourth spring for locking the lower bracket. The upper bracket is fixedly connected with the armrest, and the connecting plate is slidably connected with the claw through the lower support rod. The claw is used to clamp on the armrest when the lower bracket is rotated to a horizontal state, and the fourth spring is sleeved on the claw.

[0013] As a preferred technical solution of the present invention, it also includes bristles, which are fixedly connected to the side wall of the sample pushing rod and are located in the internal threaded sleeve.

[0014] A sampling method of a soil sampling device for geological exploration specifically comprises the following steps:

[0015] The first step is to connect the drill rod to the internal threaded sleeve, control the driving mechanism to drive the pressure plate to move downward, and the driving mechanism will drive the internal threaded sleeve to rotate. The internal threaded sleeve drives the drill rod to rotate through the push rod, so that the drill rod can drill down into the ground, and the soil sample will enter the inside of the drill rod;

[0016] The second step is to control the driving mechanism to drive the pressure plate to move upward. At this time, the driving mechanism will not drive the internal threaded sleeve to rotate, so that the drill rod is pulled out from the ground, and the soil sample in the drill rod is taken out together;

[0017] The third step is to control the driving mechanism to drive the sample push rod to move toward the drill rod, and the sample push rod pushes the soil sample in the drill rod out. Beneficial Effects

[0018] 1. This device can automatically realize the drilling in and pulling out of the drill rod and the pushing out of the soil sample. It is easy and labor-saving to operate, and can selectively transmit the power of the driving source to different positions to achieve different functions. It not only solves the problem that a small soil drilling rig needs to use a puller to remove the drill rod, but also overcomes the defects of large soil drilling rigs with high cost and large size, integrating the advantages of both.

[0019] 2. When the lower lead screw is reversed, it can drive the drill rod downward into the ground through the internal thread sleeve, while when the lower lead screw is rotated forward, it will not drive the internal thread sleeve to rotate, preventing the drill rod and the internal thread sleeve from separating and affecting normal extraction.

[0020] 3. When the lower bracket is in a vertical state, the sub-drive assembly can transmit the power of the motor to the lower lead screw. When the lower bracket rotates to a horizontal state, the sub-drive assembly will transmit the power of the motor to the upper lead screw. Not only can the upper lead screw drive the sample push rod through the sample push plate to push the soil sample out of the drill rod, but the horizontal state also makes it easier to collect and observe soil samples.

[0021] 4. When the lower screw reverses, it can drive the upper knob to rotate, so that the upper knob and the lower knob cooperate to drive the drill rod to vibrate, which can have an impact and crushing effect on the hard lumps in the soil and improve the drilling efficiency. When the lower screw rotates forward, the upper knob will not rotate to prevent the soil sample in the drill rod from falling out. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the position relationship of the sub-drive platform of the present invention.

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the regulating frame of the present invention.

[0025] Figure 4 It is a schematic diagram of the position relationship of the outer pull block of the present invention.

[0026] Figure 5 It is a schematic diagram of the sample frame structure of the present invention.

[0027] Figure 6 It is an exploded schematic diagram of the connection relationship of the upper clamp ring of the present invention.

[0028] Marked in the figure: 1-support, 101-lower bracket, 102-pressure plate, 103-internal thread sleeve, 104-drill rod, 105-push sample rod, 2-upper bracket, 201-upper lead screw, 202-push sample plate, 3-lower lead screw, 301-driving gear, 302-lower transmission gear, 303-split drive platform, 304-secondary bevel gear, 305-split drive gear, 306-adjustment frame, 307-inner gear ring, 308-motor, 309-main bevel gear, 310-driven gear, 4-upper transmission gear Wheel, 5-lifting seat, 501-regulating rod, 502-upper support rod, 503-outer pull block, 504-separation drive spring, 6-sample frame, 601-first spring, 602-position control plate, 7-guide column, 701-second spring, 702-connecting plate, 703-clamping ring, 704-block, 705-upper knob, 706-lower knob, 8-brush, 9-reset guide rod, 901-third spring, 902-support plate, 10-armrest, 11-lower support rod, 12-claw, 13-fourth spring. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope and application scope of the present invention are not limited.

[0030] Embodiment 1: A soil sampling device for geological exploration, such as Figure 1-Figure 3 As shown, it includes a support 1, a lower support 101, a pressure plate 102, an internal thread sleeve 103, a drill rod 104, a sample push rod 105 and a driving mechanism. The support 1 is equipped with a lower support 101, and the lower support 101 is slidably connected to the pressure plate 102 in the vertical direction. The lower side of the pressure plate 102 is rotatably connected to the internal thread sleeve 103. The internal thread sleeve 103 is a cylindrical structure with two ends open. The inner wall of the internal thread sleeve 103 is provided with threads. The internal thread sleeve 103 is threadedly connected to the drill rod 104. The drill rod 1 04 is also a cylindrical structure with openings at both ends. The drill rod 104 is used to drill into the ground for sampling. A sample push rod 105 is axially slidably connected to the internal threaded sleeve 103. Four slideways are arranged in a circular array on the sample push rod 105, and the four slideways extend along the axial direction of the sample push rod 105. The lower end of the sample push rod 105 extends into the internal threaded sleeve 103. The sample push rod 105 is used to push the soil sample in the drill rod 104 out. A driving mechanism for driving the drill rod 104 and the sample push rod 105 is connected to the lower bracket 101.

[0031] The device is moved to the location where sampling is required, the drill rod 104 is threadedly installed in the internal threaded sleeve 103, and then the driving mechanism is controlled to drive the pressure plate 102 to move downward, and the pressure plate 102 will drive the internal threaded sleeve 103 to move downward. According to the slideway structure on the sample pushing rod 105, it can be seen that when the internal threaded sleeve 103 moves downward, it will drive the sample pushing rod 105 to move downward. At the same time, the driving mechanism will drive the internal threaded sleeve 103 to rotate forward through the sample pushing rod 105. The direction of the positive rotation of the internal threaded sleeve 103 is the direction of tightening the drill rod 104, so the internal threaded sleeve 103 will drive the drill rod 104 to rotate and move downward, so that the drill rod 104 is drilled into the ground, and the soil will enter the drill rod 104. Then the driving mechanism is controlled to drive the pressure plate 102 to move upward, and the pressure plate 102 pulls the drill rod 104 out of the ground through the internal threaded sleeve 103, and then the driving mechanism is controlled to push the sample pushing rod 105 to move into the drill rod 104, thereby pushing out the soil sample in the drill rod 104.

[0032] like Figure 2-Figure 4 As shown, the driving mechanism includes an upper bracket 2, an upper lead screw 201, a sample push plate 202, a lower lead screw 3, a driving gear 301, a motor 308, a main bevel gear 309, a driven gear 310 and a drive subassembly. The upper bracket 101 is fixedly connected to the upper bracket 2, the upper lead screw 201 is rotatably connected to the upper bracket 2, and the sample push plate 202 is slidably connected to the upper bracket 2 in the vertical direction. The sample push plate 202 provides power for pushing out the soil sample by pressing the sample push rod 105. The overall structure of the sample push plate 202 is T-shaped. The sample push plate 202 is threadedly connected to the upper lead screw 201, and the lower bracket 101 is rotatably connected to the lower lead screw 3. The pressure plate 102 and the lower lead screw 3 Threaded connection, a driving gear 301 is installed on the lower lead screw 3 through a one-way bearing, so that the lower lead screw 3 can only drive the driving gear 301 to rotate in one direction, and a driven gear 310 is rotatably connected to the lower bracket 101, the driving gear 301 and the driven gear 310 are meshed, and the driven gear 310 and the sample push rod 105 are slidably connected, and the driven gear 310 can drive the sample push rod 105 to rotate, and a motor 308 is fixedly connected to the lower bracket 101, and a main bevel gear 309 is fixedly connected to the output shaft of the motor 308, and a sub-drive assembly is connected to the main bevel gear 309, and the main bevel gear 309 can selectively drive the upper lead screw 201 or the lower lead screw 3 to rotate through the sub-drive assembly.

[0033] The sub-drive assembly can selectively transmit the power of the main bevel gear 309 to the lower screw 3 or the upper screw 201. When the drill rod 104 needs to drill into the ground, the main bevel gear 309 drives the lower screw 3 to rotate in reverse through the sub-drive assembly. When the lower screw 3 reverses, it will drive the pressure plate 102 to move downward. At the same time, the lower screw 3 drives the driven gear 310 to rotate forward through the driving gear 301, and the driven gear 310 drives the internal threaded sleeve 103 to rotate forward through the push rod 105, thereby driving the drill rod 104 to rotate and move downward. When the main bevel gear 309 drives the lower screw 3 to rotate forward through the sub-drive assembly, the lower screw 3 drives the pressure plate 102 to move upward, but due to the driving gear 301, the driven gear 310 drives the internal threaded sleeve 103 to rotate forward through the push rod 105. The gear 301 is installed on the lower screw 3 through a one-way bearing, so the lower screw 3 will not drive the active gear 301 to rotate when it rotates forward, that is, the internal threaded sleeve 103 will not reverse, thereby preventing the drill rod 104 from falling off the internal threaded sleeve 103 during the process of pulling out the drill rod 104; when the drill rod 104 is pulled out, the main bevel gear 309 is controlled to drive the upper screw 201 to reverse through the drive assembly, and the reverse rotation of the lower screw 3 will drive the sample push plate 202 to move downward, and the sample push plate 202 will push the sample push rod 105 into the drill rod 104, thereby pushing the soil sample out of the drill rod 104, and then drive the upper screw 201 to rotate forward, so that the sample push plate 202 is reset upward.

[0034] like Figure 2 and Figure 3 As shown, the drive assembly includes a lower transmission gear 302, a drive platform 303, a secondary bevel gear 304, a drive gear 305, an adjustment frame 306, an inner gear ring 307 and an upper transmission gear 4. The lower transmission gear 302 is fixedly connected to the top of the lower lead screw 3, the upper transmission gear 4 is fixedly connected to the lower end of the upper lead screw 201, the drive platform 303 is fixedly connected to the lower bracket 101, the secondary bevel gear 304 is rotatably connected to the drive platform 303, the main bevel gear 309 is meshed with the secondary bevel gear 304, the secondary bevel gear 304 is fixedly connected to the upper and lower ends of the secondary bevel gear 304, the upper bracket 2 is slidably connected to the adjustment frame 306 in the vertical direction, and the adjustment frame 306 is located between the upper transmission gear 4 and the lower transmission gear 302. The adjustment frame 306 is a square frame structure, and the middle parts of the upper and lower frames are both circular ring structures. The circular ring structures are rotatably connected with internal gear rings 307. The internal gear rings 307 and the adjacent drive gear 305 are always meshed, and the internal gear rings 307 will not mesh with the upper transmission gear 4 and the lower transmission gear 302 at the same time. After the adjustment frame 306 moves in the direction of the upper lead screw 201, the upper transmission gear 4 is meshed with the upper internal gear ring 307. After the adjustment frame 306 is reset in the direction of the lower lead screw 3, the lower transmission gear 302 is meshed with the lower internal gear ring 307.

[0035] When the adjustment frame 306 is located on the lower side, the inner gear ring 307 located on the lower side is meshed with the lower transmission gear 302 and the lower drive gear 305 at the same time, so that when the driving gear 301 rotates, the lower lead screw 3 can be driven to rotate through the secondary bevel gear 304; when the adjustment frame 306 is located on the upper side, the inner gear ring 307 located on the upper side is meshed with the upper transmission gear 4 and the upper drive gear 305 at the same time, so that when the driving gear 301 rotates, the upper lead screw 201 can be driven to rotate through the secondary bevel gear 304.

[0036] like Figure 1 , Figure 2 and Figure 4 As shown, it also includes a switching mechanism for automatically switching the meshing state of the inner gear ring 307, the switching mechanism is connected to the lower bracket 101, the switching mechanism includes a lifting seat 5, a regulating rod 501, an upper support rod 502, an outer pull block 503 and a drive spring 504, two lifting seats 5 are symmetrically installed on the support 1, the two sides of the lower bracket 101 are rotatably connected to the lifting seat 5 on the same side, and two regulating rods 501 are symmetrically fixed on the adjustment frame 306, the regulating rod 501 passes through the upper bracket 2, and the regulating rod 501 passes through the upper bracket 2. The rod 501 is connected to the upper bracket 2 by sliding in the vertical direction. Two upper support rods 502 are symmetrically fixed on the support 1. An outer pull block 503 is fixed on the upper support rod 502. An inclined surface is provided on the upper side of the outer pull block 503. The outer pull block 503 drives the adjustment frame 306 to move in the direction of the upward screw 201 by squeezing the adjustment rod 501. A drive separation spring 504 is provided on the guide rod of the adjustment frame 306. When the adjustment frame 306 slides in the direction of the upward screw 201, the drive separation spring 504 will be compressed.

[0037] When the soil sample in the drill rod 104 needs to be pushed out, the lower bracket 101 is rotated forward ninety degrees to make the lower bracket 101 rotate to a horizontal state. During this process, the regulating rod 501 will contact the outer pull block 503, and the outer pull block 503 will squeeze the regulating rod 501 to make the regulating frame 306 move in the direction close to the upper screw 201, and will compress the drive spring 504, so that the driving gear 301 can drive the upper screw 201 to rotate, and rotating the drill rod 104 to a horizontal state is more convenient for collecting the pushed out soil sample, and will not destroy the cylindrical shape of the soil sample; when the lower bracket 101 is reversed to a vertical state, the drive spring 504 will push the regulating frame 306 to move in the direction close to the lower screw 3, so that the driving gear 301 can continue to drive the lower screw 3 to rotate after the lower bracket 101 is reversed.

[0038] Embodiment 2: Based on embodiment 1, Figure 1 and Figure 5As shown, it also includes a supporting assembly for receiving soil samples, the supporting assembly is installed on the support 1, the supporting assembly includes a sample receiving frame 6, a first spring 601 and a control plate 602, the support 1 is connected to the sample receiving frame 6 by a bracket in a horizontal sliding direction, the main structure of the sample receiving frame 6 is in the shape of a semicircular ring, the guide rod of the sample receiving frame 6 is sleeved with a first spring 601, the lower end of the sample receiving frame 6 is fixedly connected to the control plate 602, and the drill rod 104 moves the sample receiving frame 6 away by squeezing the control plate 602.

[0039] During the forward rotation of the lower bracket 101, the lower end of the drill rod 104 will squeeze the control plate 602, causing the sample frame 6 to move away from the drill rod 104 first, and compress the first spring 601. When the drill rod 104 rotates to a horizontal state, the first spring 601 pushes the sample frame 6 to move in the reset direction, so that the end of the sample frame 6 and the end of the drill rod 104 are tightly together, so that the soil sample can be smoothly pushed onto the sample frame 6, which is convenient for technicians to observe and collect the soil sample; during the reversal of the lower bracket 101, the end of the drill rod 104 will squeeze the sample frame 6. When the sample frame 6 and the drill rod 104 are out of contact, the first spring 601 pushes it to reset.

[0040] like Figure 2 , Figure 4 and Figure 6 As shown, it also includes a vibration mechanism for driving the lifting seat 5 to vibrate. The vibration mechanism is connected to the lifting seat 5. The vibration mechanism includes a guide column 7, a second spring 701, a connecting plate 702, a snap ring 703, a block 704, an upper knob 705 and a lower knob 706. Four guide columns 7 are symmetrically fixed on the support 1, and every two guide columns 7 form a group. The lifting seat 5 is slidably connected to a group of guide columns 7 on the same side along the vertical direction. The guide column 7 is sleeved with a second spring 701, and the second spring 701 is located at the lower side of the lifting seat 5. The two lifting seats 5 are commonly fixed with a connecting plate 702, which is located at the lower side of the lifting seat 5, and the connecting plate 702 is U-shaped, and the hinge A snap ring 703 is rotatably connected to the connecting plate 702, and the snap ring 703 cannot slide in the axial direction. An opening is provided on the snap ring 703, and a clamping block 704 is fixedly connected to the lower end of the lower screw 3. When the clamping block 704 is stuck in the snap ring 703, the lower screw 3 can drive the snap ring 703 to rotate synchronously, and the clamping block 704 does not contact the inner bottom of the snap ring 703 to prevent the lower bracket 101 from getting stuck when rotating. An upper knob 705 is rotatably connected to the lower side of the snap ring 703 through a one-way bearing, and a lower knob 706 is fixedly connected to the support 1. During the process of the snap ring 703 driving the upper knob 705 to rotate, the lower knob 706 can intermittently squeeze the upper knob 705 upward, thereby intermittently driving the lifting seat 5 to slide upward.

[0041] When the lower lead screw 3 is reversed, the clamping ring 703 and the upper knob 705 will be driven to rotate synchronously. According to the structure of the lower knob 706 and the upper knob 705, it can be seen that the lower knob 706 will first squeeze the upper knob 705 upward, so that the upper knob 705 drives the lifting seat 5 to move upward through the connecting plate 702, thereby driving the drill rod 104 to move upward, and then the upper knob 705 is reset downward, and the lifting seat 5 can also be reset downward, so that the drill rod 104 vibrates in the process of moving downward, which can have an impact and crushing effect on the hard lumps in the soil, and with the cooperation of the internal threaded sleeve 103 driving the drill rod 104 to rotate, the drill rod 104 is easier to drill into the ground, and the second spring 701 can play a role of buffer protection. Use; since the upper knob 705 is installed on the retaining ring 703 through a one-way bearing, and the lower knob 706 will block the upper knob 705 from rotating forward, the upper knob 705 will not rotate when the lower screw 3 drives the retaining ring 703 to rotate forward, that is, it will not shake during the process of pulling out the drill rod 104, thereby preventing the soil sample in the drill rod 104 from falling out; the rotation of the lower screw 3 is a turnover, so that the opening of the retaining ring 703 can face the direction of the drill rod 104, or the opening direction of the retaining ring 703 can be manually adjusted after the motor 308 stops, and when the lower bracket 101 rotates forward, the lower screw 3 will drive the block 704 to move directly out of the retaining ring 703, and the block 704 can be stuck in the retaining ring 703 when the lower bracket 101 is reversed and reset.

[0042] Embodiment 3: Based on embodiment 2, Figure 1 As shown, it also includes a reset guide rod 9, a third spring 901 and a support plate 902 for providing guidance and assistance for the reset of the sample push rod 105. Two reset guide rods 9 are symmetrically fixed to the lower bracket 101. The reset guide rods 9 are sleeved with the third spring 901. The two reset guide rods 9 are slidably connected with a support plate 902. The support plate 902 is located on the upper side of the third spring 901. The sample push rod 105 passes through the support plate 902. When the support plate 902 moves upward, it can drive the sample push rod 105 to move upward.

[0043] When the sample push rod 105 moves downward, it will drive the support plate 902 to move downward, and the support plate 902 will compress the third spring 901. When the pressure plate 102 is returning upward, the third spring 901 will push the sample push rod 105 to return upward synchronously through the support plate 902.

[0044] like Figure 4 As shown, it also includes an armrest 10, a lower support rod 11, a claw 12 and a fourth spring 13 for locking the lower bracket 101. The armrest 10 is fixedly connected to the upper bracket 2, and two lower support rods 11 are symmetrically fixedly connected to the connecting plate 702. The lower support rods 11 are all connected with claws 12 in a horizontal sliding direction. When the lower bracket 101 is rotated to a horizontal state, the claw 12 can be clamped on the armrest 10 to limit the reversal of the lower bracket 101. The fourth spring 13 is sleeved on the guide rod of the claw 12.

[0045] During the forward rotation of the lower bracket 101, the armrest 10 will first squeeze the claw 12 in the away direction and compress the fourth spring 13. When the lower bracket 101 rotates to a horizontal state, the fourth spring 13 pushes the claw 12 to reset. The reset claw 12 can be stuck on the upper side of the armrest 10 to prevent the lower bracket 101 from reversing during the process of pushing out the soil sample. When the lower bracket 101 needs to be reversed, the claw 12 can be pushed away from the top of the armrest 10.

[0046] like Figure 3 As shown, bristles 8 are also included. The side wall of the sample push rod 105 is fixedly connected with the bristles 8, and the bristles 8 are located in the internal threaded sleeve 103.

[0047] When the sample pusher 105 pushes the soil sample out of the drill rod 104 , the bristles 8 will contact the inner wall of the drill rod 104 , and the bristles 8 can clean the soil on the inner wall of the drill rod 104 during the movement of the sample pusher 105 .

[0048] A sampling method of a soil sampling device for geological exploration specifically comprises the following steps:

[0049] In the first step, the drill rod 104 is threadedly connected to the internal thread sleeve 103, and the driving mechanism is controlled to drive the pressure plate 102 to move downward, and the driving mechanism drives the internal thread sleeve 103 to rotate. The internal thread sleeve 103 drives the drill rod 104 to rotate through the sample push rod 105, so that the drill rod 104 can drill downward into the ground, and the soil sample will enter the inside of the drill rod 104;

[0050] The second step is to control the driving mechanism to drive the pressure plate 102 to move upwards. At this time, the driving mechanism will not drive the internal threaded sleeve 103 to rotate, so that the drill rod 104 is pulled out from the ground, and the soil sample in the drill rod 104 is taken out together;

[0051] In the third step, the driving mechanism is controlled to drive the sample pushing rod 105 to move toward the drill rod 104 , and the sample pushing rod 105 pushes the soil sample in the drill rod 104 out.

[0052] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A soil sampling device for geological exploration, comprising a support (1), characterized in that: The invention also comprises a lower bracket (101), a pressure plate (102), an internal threaded sleeve (103), a drill rod (104), a sample push rod (105) and a driving mechanism. The lower bracket (101) is mounted on the support (1). The pressure plate (102) is slidably connected to the lower bracket (101). The pressure plate (102) is rotatably connected to the internal threaded sleeve (103). The drill rod (104) is threadedly connected to the internal threaded sleeve (103). 03) is slidably connected to a sample push rod (105), the sample push rod (105) is provided with four slideways in an annular array, and the four slideways extend along the axial direction of the sample push rod (105), the lower end of the sample push rod (105) extends into the internal thread sleeve (103), the sample push rod (105) is used to push the soil sample in the drill rod (104), and the lower bracket (101) is connected to a driving mechanism for driving the drill rod (104) and the sample push rod (105); The driving mechanism comprises an upper bracket (2), an upper lead screw (201), a sample pushing plate (202), a lower lead screw (3), a driving gear (301), a motor (308), a main bevel gear (309), a driven gear (310) and a drive subassembly. The upper bracket (2) is fixedly connected to the lower bracket (101). The upper lead screw (201) is rotatably connected to the upper bracket (2). The sample pushing plate (202) is slidably connected to the upper bracket (2). The sample pushing plate (202) and the upper lead screw (201) are threadedly connected. The sample pushing plate (202) provides power for pushing out the soil sample by pressing the sample pushing rod (105). The lower bracket (101) is rotatably connected to the sample pushing plate (202). The lower lead screw (3), the pressure plate (102) and the lower lead screw (3) are threadedly connected, a driving gear (301) is installed on the lower lead screw (3) via a one-way bearing, a driven gear (310) meshing with the driving gear (301) is rotatably connected to the lower bracket (101), and the driven gear (310) and the sample push rod (105) are slidably connected, a motor (308) is fixedly connected to the lower bracket (101), a main bevel gear (309) is fixedly connected to the motor (308), and a drive subassembly is connected to the main bevel gear (309), and the main bevel gear (309) can selectively drive the upper lead screw (201) or the lower lead screw (3) to rotate through the drive subassembly; The split drive assembly comprises a lower transmission gear (302), a split drive platform (303), a secondary bevel gear (304), a split drive gear (305), an adjustment frame (306), an internal gear ring (307) and an upper transmission gear (4); the lower lead screw (3) is fixedly connected to the lower transmission gear (302); the upper lead screw (201) is fixedly connected to the upper transmission gear (4); the split drive platform (303) is fixedly connected to the lower bracket (101); and the split drive platform (303) is rotatably connected to the main bevel gear ( A secondary bevel gear (304) meshed with the upper and lower transmission gears (309), both ends of the secondary bevel gear (304) are fixedly connected to a drive gear (305), an adjustment frame (306) is slidably connected to the upper bracket (2), an internal gear ring (307) is rotatably connected to the adjustment frame (306), the internal gear ring (307) and the drive gear (305) are always meshed, and the internal gear ring (307) can be meshed with the upper transmission gear (4) or the lower transmission gear (302) by moving the adjustment frame (306); The invention also comprises a switching mechanism for automatically switching the meshing state of the inner gear ring (307); the switching mechanism is connected to the lower bracket (101); the switching mechanism comprises a lifting seat (5), a regulating rod (501), an upper support rod (502), an outer pull block (503) and a drive separation spring (504); the lifting seat (5) is mounted on the bracket (1); the lower bracket (101) is rotatably connected to the lifting seat (5); the regulating frame (306) is slidably connected to the upper bracket (2) via the regulating rod (501); the outer pull block (503) is fixedly connected to the bracket (1) via the upper support rod (502); the outer pull block (503) is used to squeeze the regulating rod (501) to move the regulating frame (306); and the regulating frame (306) and the lower bracket (101) are elastically connected via the drive separation spring (504).

2. A soil sampling device for geological exploration according to claim 1, characterized in that: The invention also comprises a supporting assembly for receiving soil samples, the supporting assembly being mounted on the support (1), the supporting assembly comprising a sample receiving frame (6), a first spring (601) and a position control plate (602), the sample receiving frame (6) being slidably connected to the support (1), the sample receiving frame (6) and the support (1) being elastically connected via the first spring (601), and the position control plate (602) being pressed and matched with the drill rod (104) being fixedly connected to the sample receiving frame (6).

3. A soil sampling device for geological exploration according to claim 1, characterized in that: The lifting seat (5) also includes a vibration mechanism for driving the lifting seat (5) to vibrate. The vibration mechanism is connected to the lifting seat (5). The vibration mechanism includes a guide column (7), a second spring (701), a connecting plate (702), a snap ring (703), a block (704), an upper knob (705) and a lower knob (706). The lifting seat (5) is slidably connected to the support (1) via the guide column (7). The guide column (7) is sleeved with a second spring (701). The lifting seat (5) is fixed with a second spring (701). A connecting plate (702) is connected, a snap ring (703) is rotatably connected to the connecting plate (702), a clamping block (704) that is clamped and matched with the snap ring (703) is fixedly connected to the lower lead screw (3), an upper knob (705) is rotatably connected to the snap ring (703) on the side of the snap ring (703) away from the lower lead screw (3) through a one-way bearing, a lower knob (706) is fixedly connected to the support (1), and the upper knob (705) and the lower knob (706) are pressed and matched to intermittently drive the lifting seat (5) to move upward.

4. A soil sampling device for geological exploration according to claim 1, characterized in that: The invention also comprises a reset guide rod (9) for providing guidance and assistance for resetting the sample push rod (105), a third spring (901) and a support plate (902); the lower bracket (101) is slidably connected to the support plate (902) via the reset guide rod (9); the reset guide rod (9) is sleeved with the third spring (901); and the upper end of the sample push rod (105) passes through the support plate (902).

5. A soil sampling device for geological exploration according to claim 1, characterized in that: It also includes an armrest (10), a lower support rod (11), a claw (12) and a fourth spring (13) for locking the lower bracket (101); the armrest (10) is fixedly connected to the upper bracket (2); the connecting plate (702) is slidably connected to the claw (12) via the lower support rod (11); the claw (12) is used to be locked on the armrest (10) when the lower bracket (101) is rotated to a horizontal state; the fourth spring (13) is sleeved on the claw (12).

6. A soil sampling device for geological exploration according to claim 1, characterized in that: It also includes bristles (8), which are fixedly connected to the side wall of the sample pushing rod (105), and the bristles (8) are located in the internal thread sleeve (103).

7. A sampling method for a soil sampling device for geological exploration, characterized in that: The sampling method of the soil sampling device for geological exploration according to any one of claims 1 to 6 is specifically The following steps are involved: The first step is to thread the drill rod (104) onto the internal thread sleeve (103), control the driving mechanism to drive the pressure plate (102) to move downward, and the driving mechanism drives the internal thread sleeve (103) to rotate, and the internal thread sleeve (103) drives the drill rod (104) to rotate through the sample push rod (105), so that the drill rod (104) can be drilled downward into the ground, and the soil sample will enter the inside of the drill rod (104); The second step is to control the driving mechanism to drive the pressure plate (102) to move upwards. At this time, the driving mechanism will not drive the internal threaded sleeve (103) to rotate, thereby pulling the drill rod (104) out from the ground, and the soil sample in the drill rod (104) is taken out together; In the third step, the driving mechanism is controlled to drive the sample pushing rod (105) to move toward the drill rod (104), and the sample pushing rod (105) pushes the soil sample in the drill rod (104).

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