A soil sampling device for geological surveys

Abstract

The application provides a soil sampling device for geological survey, and relates to the technical field of soil sampling. The device comprises a supporting main body, a sampling pipe movably installed at the middle of the bottom end of the supporting main body, a discharging assembly, a guide pipe, and a traction assembly for traction of the discharging column for movement. The discharging column is movably installed in the middle of the inner cavity of the sampling pipe, and the traction assembly is installed in the inner cavity of the supporting main body. The traction assembly comprises a winding wheel and two groups of traction ropes wound on the winding wheel. The device is driven by the same servo motor, and the one-way bearing and gear transmission are used skillfully to realize automatic switching and linkage of the two functions of sampling and discharging. When the device is rotated in the forward direction, the sampling pipe is driven to rotate and drill. When the device is rotated in the reverse direction, the winding wheel is automatically switched to wind the traction ropes to discharge. No additional power source or complex manual switching operation is needed. The device has high automation degree, is simple to operate, and greatly improves the work efficiency.

Description

Technical Field

[0001] This invention relates to the field of soil sampling technology, specifically to a soil sampling device for geological surveys. Background Technology

[0002] Soil sampling is a fundamental and crucial step in geological surveys. Traditional soil sampling devices typically use manual or simple mechanical methods to drive the sampling tube into the soil. After sampling, the soil sample inside the tube needs to be removed. Existing sampling devices often have the following problems: First, the rotation of the sampling tube and the unloading operation need to be carried out separately during the sampling process, which is inefficient; second, unloading is often done by knocking or inverting, which can easily damage or leave residues in the soil sample structure, affecting the integrity and accuracy of the sample; third, the operation is not convenient enough, especially when sampling deep layers or continuously, which is time-consuming and labor-intensive.

[0003] To address the aforementioned problems, we propose a soil sampling device for geological surveys. Summary of the Invention

[0004] To address the problems in the background art, the present invention provides a soil sampling device for geological surveys, which realizes the linkage and automation of sampling and unloading functions, and effectively protects the integrity of soil samples.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A soil sampling device for geological surveys includes a support body, a sampling tube movably mounted at the bottom center of the support body; and a discharge assembly, which includes a discharge column, a guide tube, and a traction assembly for moving the discharge column. The discharge column is movably mounted in the middle of the inner cavity of the sampling tube, and the traction assembly is mounted in the inner cavity of the support body. The traction assembly includes a winding wheel and two sets of traction ropes wound on the winding wheel. The drive assembly includes a first drive shaft and a second drive shaft. The first drive shaft is driven by a servo motor, and the second drive shaft is driven by the reverse rotation of the first drive shaft. The forward rotation of the first drive shaft drives the sampling tube to rotate, and the second drive shaft drives the take-up wheel to rotate.

[0006] Preferably, the sampling tube has limit grooves on both sides, and the unloading column has limit sliders fixedly installed at the middle of both ends. The limit sliders at both ends are slidably installed in the limit grooves on both sides, and the limit sliders have connecting holes in the middle of their inner sides.

[0007] Preferably, both sides of the inner cavity of the support body are provided with guide tubes, which are used to guide the traction rope.

[0008] Preferably, the end of the traction rope is provided with a hook, and the top of the hook is provided with an adsorption block; Preferably, the end of the conduit is provided with a storage compartment, and an electromagnet is provided on the top inner side of the storage compartment. The electromagnet is electromagnetically attracted and locked to the adsorption block.

[0009] Preferably, the guide tube is inserted and installed at the bottom of the sampling tube, and guide holes are provided at the middle of both ends of the guide tube, with a traction wheel provided at one end of the inner side of the guide hole.

[0010] Preferably, the first drive shaft is movably installed in the middle of the inner cavity of the support body, and the bottom of the first drive shaft is connected to a rotating body through a first one-way bearing. The rotating body is movably installed in the middle of the bottom end of the support body, and the top of the sampling tube is fixedly connected to the rotating body.

[0011] Preferably, a second one-way bearing is installed on the top of the first drive shaft. The second one-way bearing is arranged in the opposite direction to the first one-way bearing. A second external gear ring is fixedly installed on the outer wall of the drive ring of the second one-way bearing. A second drive gear is meshed with the right end of the second external gear ring.

[0012] Preferably, the second drive shaft is movably installed in the inner cavity of the support body and is located on the upper right side of the first drive shaft. The second drive gear is fixedly installed at the bottom middle of the second drive shaft. A first bevel gear is installed on the top of the second drive shaft. A second bevel gear is fixedly installed at the end of the rotating shaft of the winding wheel. The first bevel gear and the second bevel gear are meshed together.

[0013] Preferably, an operating handle is installed on the periphery of the support body.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves automatic switching and linkage of two functions: sampling (forward rotation of the first drive shaft) and unloading (reverse rotation of the first drive shaft) by setting up a drive component driven by the same servo motor and cleverly utilizing one-way bearings and gear transmission. When rotating forward, it drives the sampling tube to rotate and drill inward. When rotating in reverse, it automatically switches to drive the winding wheel to retract the traction rope for unloading. No additional power source or complicated manual switching operation is required. It has a high degree of automation, is easy to operate, and greatly improves work efficiency. This invention effectively protects the structural integrity of soil samples: During the unloading process, the unloading column pushes the soil sample horizontally along the inner cavity of the sampling tube under the action of the traction component, avoiding the loosening and layering damage caused by traditional knocking or dumping methods, ensuring the original structure and integrity of the sample, and improving the accuracy of geological survey data. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of a local structure in the image; Figure 3 This is a side sectional view of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of a local structure in the middle; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a side sectional view of the unloading column in this invention.

[0016] In the diagram: 1. Support body; 2. Operating handle; 3. Sampling tube; 4. Limiting groove; 5. Unloading column; 6. Limiting slider; 7. Connecting hole; 8. Rotating body; 9. First drive shaft; 12. Servo motor; 13. First one-way bearing; 14. Second one-way bearing; 15. Second external gear ring; 16. Second drive gear; 17. Second drive shaft; 18. First bevel gear; 19. Second bevel gear; 20. Rewinding wheel; 21. Conductor tube; 22. Hook; 23. Adsorption block; 24. Traction rope; 25. Storage bin; 26. Electromagnet; 27. Guide tube; 28. Guide hole; 29. ​​Traction wheel. Detailed Implementation

[0017] The technical solution in this application embodiment is to solve the problems of the background technology mentioned above. The overall idea is as follows: This invention utilizes a combination of one-way bearings and gears to realize the two functions of sampling drilling and unloading, which are controlled by a single motor in both forward and reverse rotation, simplifying the structure and control system. By utilizing the forward and reverse rotation characteristics of the one-way bearing, the output of the servo motor 12 in a single rotation direction is cleverly converted into two different stages and directions of driving action: the rotation of the sampling tube 3 and the winding of the take-up wheel 20. The mechanism is compact, the transmission chain is clear, and the operation is stable. In use, the first drive shaft 9 and the second drive shaft 17 are controlled by the same servo motor 12 in a time-sharing manner. First, the sampling tube 3 is driven to rotate to complete soil sampling. Then, the drive of the take-up wheel 20 is automatically switched to rotate. The unloading column 5 is smoothly pushed out of the sampling tube 3 through the traction component, thereby realizing continuous automated operation of sampling and unloading, which greatly improves work efficiency.

[0018] Example: Refer to Figure 1 - Figure 6 As shown, a soil sampling device for geological surveys according to this embodiment includes a support body 1, a sampling tube 3 movably installed at the bottom center of the support body 1; it also includes a discharge assembly and a drive assembly.

[0019] The unloading assembly includes an unloading column 5, a guide tube 27, and a traction assembly for moving the unloading column 5. The unloading column 5 is movably installed in the middle of the inner cavity of the sampling tube 3. The traction assembly is installed in the inner cavity of the support body 1. The traction assembly includes a winding wheel 20 and two sets of traction ropes 24 wound on the winding wheel 20. The drive assembly includes a first drive shaft 9 and a second drive shaft 17. The first drive shaft 9 is driven by a servo motor 12, and the second drive shaft 17 is driven by the reverse rotation of the first drive shaft 9. The forward rotation of the first drive shaft 9 drives the sampling tube 3 to rotate, and the second drive shaft 17 drives the winding wheel 20 to rotate, thereby pulling the unloading column 5 through the traction assembly to push out the soil sample.

[0020] In some examples, limiting grooves 4 are provided on both sides of the sampling tube 3, and limiting sliders 6 are fixedly installed at the middle of both ends of the unloading column 5. The limiting sliders 6 at both ends are slidably installed in the limiting grooves 4 on both sides. This structure ensures that the unloading column 5 can only move along the axial direction of the sampling tube 3 and will not rotate with it. A connecting hole 7 is provided in the middle of the inner side of the limiting slider 6 for connecting the traction rope 24.

[0021] In some examples, both sides of the inner cavity of the support body 1 are provided with guide tubes 21, which are used to guide the traction rope 24 to ensure that the traction force is in the correct direction.

[0022] In some examples, the end of the traction rope 24 is provided with a hook 22 for quick connection or separation from the connection hole 7 of the unloading column 5. The top of the hook 22 is provided with an adsorption block 23, and the end of the wire tube 21 is provided with a storage compartment 25. An electromagnet 26 is provided on the top inner side of the storage compartment 25. The electromagnet 26 and the adsorption block 23 are electromagnetically adsorbed and locked. When the electromagnet 26 is energized, it generates magnetic force and electromagnetically adsorbs and locks with the adsorption block 23 to prevent the traction rope 24 and the hook 22 from shaking randomly.

[0023] In some examples, the guide tube 27 is inserted into the bottom of the sampling tube 3. Guide holes 28 are provided at the middle of both ends of the guide tube 27. A traction wheel 29 is provided at one end of the inner side of the guide hole 28. The traction rope 24 changes direction after passing around the traction wheel 29 and connects to the unloading column 5, forming a traction path that saves effort and changes the direction of action. This allows the winding wheel 20 to smoothly pull the unloading column 5 from the top of the sampling tube 3 towards the outlet direction, thereby achieving ejection and unloading.

[0024] In some examples, the first drive shaft 9 is movably installed in the middle of the inner cavity of the support body 1. The bottom of the first drive shaft 9 is connected to the rotating body 8 via the first one-way bearing 13. The rotating body 8 is movably installed in the middle of the bottom end of the support body 1. The top of the sampling tube 3 is fixedly connected to the rotating body 8. The top of the first drive shaft 9 is equipped with a second one-way bearing 14, which is arranged in the opposite direction to the first one-way bearing 13. The outer wall of the drive ring of the second one-way bearing 14 is fixedly installed with a second external gear ring 15, and the right end of the second external gear ring 15 is meshed with a second drive gear 16.

[0025] When the first drive shaft 9 rotates forward, it drives the rotating body 8 and the sampling tube 3 to rotate synchronously through the first one-way bearing 13 for sampling. At this time, the top of the first drive shaft 9 and the second one-way bearing 14 are idle. Conversely, when the first drive shaft 9 rotates in reverse, the first one-way bearing 13 and the first drive shaft 9 are idle, the sampling tube 3 does not rotate, and the first drive shaft 9 rotates in reverse, so that the second external gear ring 15 and the second drive gear 16 are rotated through the second one-way bearing 14.

[0026] In some examples, the second drive shaft 17 is movably installed in the inner cavity of the support body 1 and is located on the upper right side of the first drive shaft 9. The second drive gear 16 is fixedly installed in the middle of the bottom end of the second drive shaft 17. The first bevel gear 18 is installed on the top of the second drive shaft 17. The second bevel gear 19 is fixedly installed at the end of the rotating shaft of the winding wheel 20. The first bevel gear 18 and the second bevel gear 19 are meshed together. When the first drive shaft 9 reverses, the power is transmitted to the winding wheel 20 in sequence through the second one-way bearing 14, the second external gear ring 15, the second drive gear 16, the second drive shaft 17, the first bevel gear 18, and the second bevel gear 19, causing it to rotate and wind up the traction rope 24, thereby pulling the unloading column 5 and causing the unloading column 5 to slide towards the outlet of the sampling tube 3, thereby ejecting the soil sample.

[0027] In some examples, an operating handle 2 is installed on the periphery of the support body 1 to facilitate manual holding and operation of the device.

[0028] The working principle of this invention is: When in use, the operator first operates the support body 1 through the operating handle 2. When sampling, the first drive shaft 9 is driven to rotate forward by the servo motor 12. At this time, the first one-way bearing 13 engages, so that the power is transmitted to the sampling tube 3 through the rotating body 8, causing it to rotate and drill into the soil. At this time, the second one-way bearing 14 slips, and the subsequent transmission chain does not work.

[0029] When sampling is completed and unloading is required, the staff needs to put the guide tube 27 on the bottom of the sampling tube 3, and then remove the hook 22 at the end of the traction rope 24 from the electromagnet 26 of the storage bin 25, pass it downward through the guide hole 28 of the guide tube 27, go around the traction wheel 29, and hang it on the connection hole 7 of the limit slider 6 of the unloading column 5.

[0030] At this point, the servo motor 12 can be controlled to drive the first drive shaft 9 to reverse. At this time, the first one-way bearing 13 slips, the sampling tube 3 stops rotating, and the second one-way bearing 14 engages, driving the second external gear ring 15 to rotate. Then, through the second drive gear 16, the second drive shaft 17, the first bevel gear 18 and the second bevel gear 19, the power is transmitted to the winding wheel 20. The winding wheel 20 rotates, thereby winding and tightening the two traction ropes 24. The resulting traction force will pull the unloading column 5 to slide towards the outlet of the sampling tube 3, thereby smoothly pushing out the soil column taken in the sampling tube 3 and completing the unloading without damage.

[0031] After unloading, the hook 22 can be removed, the winding wheel 20 can be controlled to wind up the traction rope 24 appropriately, and then the adsorption block 23 at the top of the hook 22 can be brought close to the electromagnet 26 of the storage compartment 25 and energized to adsorb, so that the traction component can be stored and reset, ready for the next sampling.

[0032] The unloading column 5 is connected to the limiting slide 6 and the limiting slide 4 to ensure that it moves in a straight line without rotating in the sampling tube 3, thus avoiding shearing damage to the soil sample. The horizontal rotation of the winding wheel 20 is converted into a stable vertical lifting force on the unloading column 5 through the traction path formed by the guide tube 27 and the traction wheel 29, thereby smoothly pushing the soil sample out from the bottom of the sampling tube 3 and preserving the original structure and layers of the soil column to the greatest extent.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A soil sampling device for geological surveys, characterized in that, Includes a support body (1), and a sampling tube (3) is movably installed at the bottom center of the support body (1). The unloading assembly includes an unloading column (5), a guide tube (27), and a traction assembly for moving the unloading column (5). The unloading column (5) is movably installed in the middle of the inner cavity of the sampling tube (3). The traction assembly is installed in the inner cavity of the support body (1). The traction assembly includes a winding wheel (20) and two sets of traction ropes (24) wound on the winding wheel (20). The drive assembly includes a first drive shaft (9) and a second drive shaft (17). The first drive shaft (9) is driven by a servo motor (12), and the second drive shaft (17) is driven by the reverse rotation of the first drive shaft (9). The first drive shaft (9) drives the sampling tube (3) to rotate in the forward direction, and the second drive shaft (17) drives the winding wheel (20) to rotate.

2. The soil sampling device for geological surveys according to claim 1, characterized in that, The sampling tube (3) has a limiting groove (4) on both sides. The unloading column (5) has a limiting slider (6) fixedly installed at the middle of both ends. The limiting sliders (6) at both ends are slidably installed in the limiting grooves (4) on both sides. The limiting slider (6) has a connecting hole (7) in the middle of its inner side.

3. A soil sampling device for geological surveys according to claim 2, characterized in that, Both sides of the inner cavity of the support body (1) are provided with wire tubes (21), which are used to guide the traction rope (24).

4. A soil sampling device for geological surveys according to claim 3, characterized in that, The end of the traction rope (24) is provided with a hook (22), and the top of the hook (22) is provided with an adsorption block (23).

5. A soil sampling device for geological surveys according to claim 4, characterized in that, The end of the conduit (21) is provided with a storage compartment (25), and an electromagnet (26) is provided on the top inner side of the storage compartment (25). The electromagnet (26) and the adsorption block (23) are electromagnetically adsorbed and locked.

6. A soil sampling device for geological surveys according to claim 5, characterized in that, The guide tube (27) is inserted into the bottom of the sampling tube (3). Guide holes (28) are provided at the middle of both ends of the guide tube (27). A traction wheel (29) is provided at one end of the inner side of the guide hole (28).

7. A soil sampling device for geological surveys according to claim 6, characterized in that, The first drive shaft (9) is movably installed in the middle of the inner cavity of the support body (1). The bottom of the first drive shaft (9) is connected to a rotating body (8) via a first one-way bearing (13). The rotating body (8) is movably installed in the middle of the bottom end of the support body (1). The top of the sampling tube (3) is fixedly connected to the rotating body (8).

8. A soil sampling device for geological surveys according to claim 7, characterized in that, A second one-way bearing (14) is installed on the top of the first drive shaft (9). The second one-way bearing (14) is arranged in the opposite direction to the first one-way bearing (13). A second external gear ring (15) is fixedly installed on the outer wall of the drive ring of the second one-way bearing (14). A second drive gear (16) is meshed with the right end of the second external gear ring (15).

9. A soil sampling device for geological surveys according to claim 8, characterized in that, The second drive shaft (17) is movably installed in the inner cavity of the support body (1) and is located on the upper right side of the first drive shaft (9). The second drive gear (16) is fixedly installed in the middle of the bottom end of the second drive shaft (17). The first bevel gear (18) is installed on the top of the second drive shaft (17). The second bevel gear (19) is fixedly installed at the end of the rotating shaft of the winding wheel (20). The first bevel gear (18) and the second bevel gear (19) are meshed together.

10. A soil sampling device for geological surveys according to claim 9, characterized in that, An operating handle (2) is installed on the periphery of the support body (1).

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