Drilling type sampling device for geological surveying and mapping

Abstract

The invention discloses a drilling type sampling device for geological surveying and mapping, and relates to the field of sampling for geological surveying and mapping, the drilling type sampling device for geological surveying and mapping comprises a pushing trolley, the pushing trolley is fixedly connected with a mounting plate, and according to the drilling type sampling device for geological surveying and mapping, after a drilling pipe and a first transmission pipe drive a second transmission pipe and a sampling pipe to reach the required sampling depth, the second transmission pipe and the sampling pipe are driven by the first transmission pipe; by means of a transmission mechanism, a rotating rod is inserted into a rotating pipe and rotates to drive a transmission shaft, and a second threaded rod rotates through transmission of a first bevel gear and a second bevel gear, so that a sampling pipe is pushed to move, and a barrier plate is ejected to enter a corresponding sampling layer for sampling. After sampling, reverse operation enables the sampling tube to reset, and the barrier plate seals the sampling groove under the action of the torsion spring to prevent soil of other soil layers from polluting the sample. Therefore, soil layer samples of different depths are accurately obtained, soil of different depths is effectively prevented from being mixed, the sampling accuracy of the samples is greatly improved, and more reliable data support is provided for geological surveying and mapping work.

Description

Technical Field

[0001] This invention relates to sampling techniques for geological surveying, and more specifically to a borehole sampling device for geological surveying. Background Technology

[0002] Sampling plays a crucial role in the many stages of geological work. Accurately obtaining soil samples from different depths, based on varying geological or engineering requirements, provides indispensable data support for subsequent geological analysis, resource exploration, and engineering construction decisions.

[0003] Currently, borehole sampling devices are commonly used tools in the field of geological surveying and sampling. Their basic principle is to use a drill bit to drive a hollow drill barrel to drill through the soil, creating a cylindrical hole with a diameter much smaller than its depth. After drilling is complete, the drill barrel is pulled out, and the soil remaining inside serves as the sample. However, this traditional borehole sampling method has many significant drawbacks in practical applications.

[0004] Because drilling operations proceed gradually from shallow to deep, soil from both deep and shallow areas is extracted simultaneously during sampling. This inevitably leads to soil from different depths mixing during extraction, significantly impacting sampling accuracy. For example, in geological exploration, if the goal is to study the composition, structural characteristics, or specific minerals contained in soil at a particular depth, mixed samples obtained using traditional sampling methods cannot accurately reflect the actual conditions of the soil at that depth. This can mislead subsequent geological analysis results, leading to biased judgments about underground geological structures and resource distribution.

[0005] In summary, existing borehole sampling devices have significant shortcomings in sampling accuracy, making it difficult to meet the ever-increasing demands for high precision in geological surveying. Therefore, developing a borehole sampling device capable of accurately acquiring soil samples at different depths is of significant practical importance. Summary of the Invention

[0006] The purpose of this invention is to provide a borehole sampling device for geological surveying, so as to solve the problem that the sampling devices in the prior art have obvious defects in sampling accuracy and cannot meet the growing demand for high precision in geological surveying.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a borehole sampling device for geological surveying, comprising a push trolley, an mounting plate fixedly connected to the push trolley, a transmission plate slidably connected to the mounting plate, a moving mechanism connected to the mounting plate on the transmission plate, the moving mechanism driving the transmission plate to move up and down, a borehole tube rotatably connected to the transmission plate, a first drive mechanism connected to the transmission plate driving the borehole tube to rotate on its outer surface, a first transmission tube rotatably connected inside the borehole tube, a helical rod fixedly connected to the outer surface of the first transmission tube, a second drive mechanism connected to the mounting plate driving the first transmission tube to rotate, a plurality of second transmission tubes fixedly connected to the outer surface of the first transmission tube, a sampling tube slidably connected inside the second transmission tube, and a transmission mechanism connected to the first transmission tube at one end of the sampling tube, the transmission mechanism driving the sampling tube to move;

[0008] A sampling groove is provided on the outer surface of the drill pipe. A flipping shaft is rotatably connected inside the sampling groove. A baffle plate is fixedly connected to the outer surface of the flipping shaft. A torsion spring fixedly connected to the sampling groove is provided on the flipping shaft. A stop block is fixedly connected inside the sampling groove.

[0009] Furthermore, the moving mechanism includes a first rotation drive component fixedly connected to the mounting plate, the output end of the first rotation drive component being fixedly connected to a first threaded rod rotatably connected to the mounting plate, the first threaded rod being threadedly connected to a transmission plate, and a guide rod fixedly connected to the mounting plate being slidably connected to the transmission plate.

[0010] Furthermore, the first driving mechanism includes a second rotational driving member fixedly connected to the transmission plate, the output end of the second rotational driving member is fixedly connected to a first driving shaft, the outer surface of the first driving shaft is fixedly sleeved with a first gear, and the outer surface of the first gear is meshed with a second gear fixedly sleeved with the drill pipe.

[0011] Furthermore, the second drive mechanism includes a third rotation drive member fixedly connected to the transmission plate. The output end of the third rotation drive member is fixedly connected to a second drive shaft. A third gear is fixedly sleeved on the outer surface of the second drive shaft. A one-way gear fixedly sleeved on the outer surface of the third gear is meshed with a first transmission tube.

[0012] Furthermore, the transmission mechanism includes a transmission shaft rotatably connected to the first transmission tube, a first bevel gear fixedly connected to the bottom end of the transmission shaft, a plurality of second bevel gears meshing with the outer surface of the first bevel gear, a second threaded rod rotatably connected to the second transmission tube fixedly sleeved in the middle of the second bevel gear, a movable plate slidably connected to the second transmission tube being threadedly fitted to the outer surface of the second threaded rod, and a push plate fixedly connected to the sampling tube being fixedly connected to one side of the movable plate.

[0013] Furthermore, two rotating tubes are fixedly connected to the outer surface of the drive shaft.

[0014] Furthermore, a permanent magnet is fixedly connected inside the sampling tube, a push plate that is slidably connected to the sampling tube is attracted to one side of the permanent magnet, a pull rope is fixedly connected to one side of the push plate, and a barbed groove is opened at one end of the sampling tube.

[0015] Furthermore, a soil-breaking groove is provided at the bottom end of the drill pipe.

[0016] Compared with the prior art, the borehole sampling device for geological mapping provided by the present invention has the following beneficial effects:

[0017] Existing borehole sampling devices suffer from inaccuracies due to soil mixing at different depths caused by drilling from shallow to deep. This invention solves this problem through a unique design. After the borehole tube and first transmission tube drive the second transmission tube and sampling tube to the desired sampling depth, a transmission mechanism inserts a rotating rod into the rotating tube. This rotation drives the transmission shaft, which in turn, via a first and second bevel gear, rotates the second threaded rod, propelling the sampling tube to move and push open the baffle plate to enter the corresponding sampling layer. After sampling, the process is reversed to reset the sampling tube. The baffle plate, under the action of a torsion spring, seals the sampling groove, preventing soil contamination from other layers. This allows for precise acquisition of soil samples from different depths, effectively avoiding soil mixing and significantly improving sampling accuracy, providing more reliable data support for geological mapping work.

[0018] The device of this invention has significant advantages in terms of operational stability and ease of operation. On one hand, during drilling, the second drive mechanism drives the first transmission tube to rotate, and the auger rotates accordingly. This promptly discharges soil entering the borehole tube, preventing soil accumulation inside and hindering descent, ensuring the borehole tube moves steadily downwards. Simultaneously, it avoids soil accumulation damaging the second transmission tube and sampling tube, extending the device's service life. On the other hand, after sampling, a permanent magnet is used to attract the push plate, and the pull rope is tied to the groove. After sampling, the worker unties the pull rope and pulls it horizontally to push out the sampled soil, making operation simple and convenient. Furthermore, the moving mechanism, the first drive mechanism, and the second drive mechanism all use servo motors, controlled by a PLC program, enabling precise control of forward and reverse rotation and rotation angle. This further improves the stability and accuracy of the device's operation, making the entire sampling process more efficient and reliable. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a first perspective view of the external structure of the present invention;

[0021] Figure 2 This is a second perspective view of the external structure of the present invention;

[0022] Figure 3 This is a perspective view of the internal structure of the present invention;

[0023] Figure 4 This is a front view of the internal structure of the present invention;

[0024] Figure 5 For the present invention Figure 1 Enlarged view of A in the middle;

[0025] Figure 6 For the present invention Figure 3 Enlarged view of B in the middle;

[0026] Figure 7 For the present invention Figure 4 A magnified view of C.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Pushing trolley; 2. Mounting plate; 3. Transmission plate; 4. Drilling tube; 5. First transmission tube; 6. Second transmission tube; 7. Sampling tube; 8. Sampling slot; 9. Tilting shaft; 10. Blocking plate; 11. Torsion spring; 12. Stop block; 13. Helical rod; 21. First rotation drive component; 22. First threaded rod; 23. Guide rod; 31. Second rotation drive component; 32. First drive shaft; 33. First gear; 34. Second gear; 41. Third rotation drive component; 42. Second drive shaft; 43. Third gear; 44. One-way gear; 51. Transmission shaft; 52. First bevel gear; 53. Second bevel gear; 54. Second threaded rod; 55. Moving plate; 56. Pushing plate; 57. Rotating tube; 61. Permanent magnet; 62. Push plate; 63. Pull rope; 64. Bar groove. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example

[0031] Please see Figures 1 to 7 As shown, the present invention provides a borehole sampling device for geological surveying, including a push trolley 1, an mounting plate 2 fixedly connected to the push trolley 1, a transmission plate 3 slidably connected to the mounting plate 2, a moving mechanism connected to the mounting plate 2 on the transmission plate 3, the moving mechanism being used to drive the transmission plate 3 to move up and down, a borehole pipe 4 rotatably connected to the transmission plate 3, a first drive mechanism connected to the transmission plate 3 being driven to the outer surface of the borehole pipe 4, the first drive mechanism being used to drive the borehole pipe 4 to rotate, a first transmission pipe 5 rotatably connected inside the borehole pipe 4, a spiral rod 13 fixedly connected to the outer surface of the first transmission pipe 5, a second drive mechanism connected to the mounting plate 2 being driven to the outer surface of the first transmission pipe 5, the second drive mechanism being used to drive the first transmission pipe 5 to rotate, a plurality of second transmission pipes 6 fixedly connected to the outer surface of the first transmission pipe 5, a sampling pipe 7 slidably connected inside the second transmission pipe 6, a transmission mechanism connected to the first transmission pipe 5 being provided at one end of the sampling pipe 7, the transmission mechanism being used to drive the sampling pipe 7 to move;

[0032] A sampling groove 8 is provided on the outer surface of the drill pipe 4. A flipping shaft 9 is rotatably connected inside the sampling groove 8. A baffle plate 10 is fixedly connected to the outer surface of the flipping shaft 9. A torsion spring 11 is fixedly connected to the sampling groove 8 on the flipping shaft 9. A stop block 12 is fixedly connected inside the sampling groove 8.

[0033] The moving mechanism includes a first rotation drive component 21 fixedly connected to the mounting plate 2. The first rotation drive component 21 is a servo motor. The servo motor is controlled by a PLC programming program, which can control the servo motor to rotate forward and backward and rotate at different angles. The output end of the first rotation drive component 21 is fixedly connected to a first threaded rod 22 that is rotatably connected to the mounting plate 2. The first threaded rod 22 is threadedly connected to the transmission plate 3. A guide rod 23 that is fixedly connected to the mounting plate 2 is slidably connected to the transmission plate 3. The first rotation drive component 21 drives the first threaded rod 22 to rotate, and the first threaded rod 22 drives the transmission plate 3 to move up and down.

[0034] The first drive mechanism includes a second rotation drive component 31 fixedly connected to the transmission plate 3. The second rotation drive component 31 is a servo motor, which is controlled by a PLC programming program. The output end of the second rotation drive component 31 is fixedly connected to a first drive shaft 32. A first gear 33 is fixedly sleeved on the outer surface of the first drive shaft 32. A second gear 34, which is fixedly sleeved on the outer surface of the first gear 33, is meshed with the drill pipe 4. The second rotation drive component 31 drives the first drive shaft 32 to rotate, and the first drive shaft 32 drives the drill pipe 4 to rotate through the first gear 33 and the second gear 34.

[0035] The second drive mechanism includes a third rotation drive component 41 fixedly connected to the transmission plate 3. The third rotation drive component 41 is a servo motor, which is controlled by a PLC programming program. The output end of the third rotation drive component 41 is fixedly connected to a second drive shaft 42. A third gear 43 is fixedly sleeved on the outer surface of the second drive shaft 42. A one-way gear 44 fixedly sleeved on the outer surface of the third gear 43 is meshed with the first transmission tube 5. The one-way gear 44 can only rotate in one direction, such as the small gear on a bicycle. The third rotation drive component 41 drives the second drive shaft 42 to rotate, and the second drive shaft 42 drives the one-way gear 44 to rotate through the third gear 43.

[0036] The transmission mechanism includes a transmission shaft 51 rotatably connected to the first transmission tube 5. A first bevel gear 52 is fixedly connected to the bottom end of the transmission shaft 51. Multiple second bevel gears 53 are meshed on the outer surface of the first bevel gear 52. A second threaded rod 54 rotatably connected to the second transmission tube 6 is fixedly sleeved in the middle of the second bevel gear 53. A movable plate 55 slidably connected to the second transmission tube 6 is threadedly fitted on the outer surface of the second threaded rod 54. A push plate 56 fixedly connected to the sampling tube 7 is fixedly connected to one side of the movable plate 55. Two rotating tubes 57 are fixedly connected to the outer surface of the transmission shaft 51. By inserting the rotating rod into the rotating tube 57, a lever principle is formed. Then, by rotating the rotating rod, the rotating rod drives the rotating tube 57 and the transmission shaft 51 to rotate. The transmission shaft 51 drives the second threaded rod 54 to rotate through the first bevel gear 52 and the second bevel gear 53. The second threaded rod 54 drives the movable plate 55 to move. The movable plate 55 drives the push plate 56 and the sampling tube 7 to move.

[0037] A permanent magnet 61 is fixedly connected inside the sampling tube 7. A push plate 62, which is slidably connected to the sampling tube 7, is attracted to one side of the permanent magnet 61. A pull rope 63 is fixedly connected to one side of the push plate 62. A barbed groove 64 is opened at one end of the sampling tube 7. Before soil sampling, the push plate 62 is placed into the sampling tube 7 and attracted by the permanent magnet 61 inside the sampling tube 7. At the same time, the pull rope 63 is tied to the barbed groove 64. After soil sampling is completed, the worker unties the pull rope on the barbed groove and then pulls the pull rope 63 horizontally. The pull rope 63 pulls the push plate 62 to move, and the push plate 62 pushes the soil out of the sampling tube 7, thus facilitating the discharge of the soil from the sampling tube 7.

[0038] A soil-breaking groove is provided at the bottom end of the drill pipe 4.

[0039] First, the trolley 1 is pushed to the desired sampling position. Then, the moving mechanism drives the transmission plate 3 downward, which in turn drives the drilling pipe 4 downward. Simultaneously, the first drive mechanism rotates the drilling pipe 4, causing it to drill and break the soil. At the same time, the second drive mechanism rotates the first transmission pipe 5, which in turn rotates the auger 13. The auger 13 promptly discharges the soil entering the drilling pipe 4, preventing accumulated soil from obstructing its descent and facilitating its downward movement. This also prevents accumulated soil from damaging the second transmission pipe 6 and the sampling pipe 7. The drilling pipe 4 and the first transmission pipe 5 then drive the second transmission pipe 6 and the sampling pipe 7 to the desired sampling depth. Next, a rotating rod is inserted into the rotating pipe 57, which is then rotated along with the transmission shaft 51. The transmission shaft 51, through the first bevel gear 52 and the second bevel gear 53, drives the second threaded rod 54... As the second threaded rod 54 rotates, it drives the moving plate 55 to move. The moving plate 55 then drives the pushing plate 56 and the sampling tube 7 to move. At this time, the sampling tube 7 pushes open the blocking plate 10 in the sampling groove 8, allowing the sampling tube 7 to enter the sampling layer at the required sampling depth. Subsequently, the soil at that depth enters the sampling tube 7. Then, it rotates in the reverse direction, allowing the sampling tube 7 to enter the second transmission tube 6. At the same time, the tilting shaft 9 in the sampling groove 8, under the action of the torsion spring 11, drives the tilting shaft 9 and the blocking plate 10 to move. The device rotates to seal the sampling slot 8 with the baffle plate 10, preventing soil from other sampling layers from entering the sampling tube 7 and contaminating the sample. Then, the moving mechanism drives the transmission plate 3 and the drilling tube 4 to move upward, causing the drilling tube 4 to be pulled out. Then, the pull rope 63 on the sampling tube 7 is pulled, which drives the push plate 62 to move, thereby pushing out the sampled soil in the sampling tube 7. This enables precise sampling of soil samples at different depths, greatly improving the accuracy of sample sampling.

[0040] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A borehole sampling device for geological surveying, characterized in that, The device includes a pusher trolley (1), on which a mounting plate (2) is fixedly connected. A transmission plate (3) is slidably connected to the mounting plate (2). A moving mechanism connected to the mounting plate (2) is provided on the transmission plate (3). The moving mechanism is used to drive the transmission plate (3) to move up and down. A drilling tube (4) is rotatably connected to the transmission plate (3). A first driving mechanism connected to the transmission plate (3) is driven to the outer surface of the drilling tube (4). The first driving mechanism is used to drive the drilling tube (4) to rotate. A first transmission mechanism is rotatably connected inside the drilling tube (4). The first transmission tube (5) has a helical rod (13) fixedly connected to its outer surface. The outer surface of the first transmission tube (5) is connected to a second drive mechanism connected to the mounting plate (2). The second drive mechanism is used to drive the first transmission tube (5) to rotate. The outer surface of the first transmission tube (5) has multiple second transmission tubes (6) fixedly connected to its outer surface. A sampling tube (7) is slidably connected inside the second transmission tube (6). One end of the sampling tube (7) is provided with a transmission mechanism connected to the first transmission tube (5). The transmission mechanism is used to drive the sampling tube (7) to move. The outer surface of the drill pipe (4) is provided with a sampling groove (8), a rotating shaft (9) is rotatably connected inside the sampling groove (8), a baffle plate (10) is fixedly connected to the outer surface of the rotating shaft (9), a torsion spring (11) is fixedly connected to the sampling groove (8) on the rotating shaft (9), and a stop block (12) is fixedly connected inside the sampling groove (8).

2. The borehole sampling device for geological mapping according to claim 1, characterized in that, The moving mechanism includes a first rotating drive member (21) fixedly connected to the mounting plate (2), and a first threaded rod (22) fixedly connected to the output end of the first rotating drive member (2) and rotatably connected to the mounting plate (2). The first threaded rod (22) is threadedly connected to the transmission plate (3), and a guide rod (23) fixedly connected to the mounting plate (2) is slidably connected to the transmission plate (3).

3. The borehole sampling device for geological mapping according to claim 1, characterized in that, The first drive mechanism includes a second rotation drive member (31) fixedly connected to the transmission plate (3). The output end of the second rotation drive member (31) is fixedly connected to a first drive shaft (32). A first gear (33) is fixedly sleeved on the outer surface of the first drive shaft (32). A second gear (34) is fixedly sleeved on the outer surface of the first gear (33) and meshed with the drill pipe (4).

4. The borehole sampling device for geological mapping according to claim 1, characterized in that, The second drive mechanism includes a third rotation drive member (41) fixedly connected to the transmission plate (3). The output end of the third rotation drive member (41) is fixedly connected to a second drive shaft (42). A third gear (43) is fixedly sleeved on the outer surface of the second drive shaft (42). A one-way gear (44) fixedly sleeved on the outer surface of the third gear (43) is meshed with the first transmission tube (5).

5. A borehole sampling device for geological mapping according to claim 1, characterized in that, The transmission mechanism includes a transmission shaft (51) rotatably connected to the first transmission tube (5). A first bevel gear (52) is fixedly connected to the bottom end of the transmission shaft (51). A plurality of second bevel gears (53) are meshed on the outer surface of the first bevel gear (52). A second threaded rod (54) rotatably connected to the second transmission tube (6) is fixedly sleeved in the middle of the second bevel gear (53). A moving plate (55) slidably connected to the second transmission tube (6) is threaded on the outer surface of the second threaded rod (54). A push plate (56) fixedly connected to the sampling tube (7) is fixedly connected to one side of the moving plate (55).

6. A borehole sampling device for geological surveying according to claim 5, characterized in that, Two rotating tubes (57) are fixedly connected to the outer surface of the drive shaft (51).

7. A borehole sampling device for geological mapping according to claim 5, characterized in that, A permanent magnet (61) is fixedly connected inside the sampling tube (7). A push plate (62) that is slidably connected to the sampling tube (7) is attracted to one side of the permanent magnet (61). A pull rope (63) is fixedly connected to one side of the push plate (62). A barbed groove (64) is opened at one end of the sampling tube (7).

8. A borehole sampling device for geological surveying according to claim 1, characterized in that, The bottom end of the borehole pipe (4) is provided with a soil breaking groove.

Images