Shallow soil sampling device for geotechnical engineering investigation

Abstract

The present application relates to the technical field of geotechnical engineering investigation, in particular to a shallow soil sampling device for geotechnical engineering investigation, which comprises a transport trolley, the upper surface of the transport trolley is fixedly connected with two symmetrically arranged mounting brackets, and a rectangular mounting plate is arranged between the two mounting brackets. In the present application, the first connecting rod moves with the closure plate inside the movable groove, so that the adaptive port is opened, at this time the adaptive port corresponds to the soil inlet, then the third servo motor is started, the output shaft of the third servo motor rotates with the rotating rod, the rotating rod rotates with the multiple equidistantly arranged poking rods, the poking rods can be probed out of the outside of the rotating cylinder, so that the soil outside the rotating cylinder is stirred, so that the soil enters the inside of the soil sampling cylinder, so that different positions can be selectively sampled according to needs, without the need for different positions of soil to be mixed together, ensuring the accuracy of the data.

Description

Technical Field

[0001] This invention relates to the field of geotechnical engineering investigation technology, specifically to a shallow soil sampling device for geotechnical engineering investigation. Background Technology

[0002] Sampling is necessary during geotechnical engineering investigations to effectively analyze the soil and rock structure, thus aiding in construction. Sampling requires geotechnical engineering investigation sampling equipment. Existing geotechnical engineering investigation sampling equipment generally possesses advantages such as good sampling effect, high structural strength, simple operation, easy manufacturing, good operational stability, and long service life, meeting the needs of geotechnical engineering investigation sampling work. For example, Chinese Patent Publication No. CN202222355159.8 provides a geological exploration soil sampling device. It drills a soil sampling cylinder underground, then starts a drive motor, which drives a spiral drill roller to rotate, pumping soil into a discharge pipe. The soil then enters an inner chamber along the discharge pipe. When soil samples are pumped back into the inner chamber, the inner chamber can separate and store different types of soil without requiring replacement of the soil container. However, for existing sampling equipment used in geotechnical engineering investigation, on the one hand, when sampling, the open sampler is often squeezed into the soil by gravity or mechanical pressure. This method results in the sampler being filled with soil at different depths, making it impossible to sample the soil at the required location separately. The soil from different locations is mixed together, which will cause confusion in the analysis of the soil structure and reduce the accuracy of the data. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a shallow soil sampling device for geotechnical engineering exploration.

[0004] The technical solution of this invention is as follows:

[0005] A shallow soil sampling device for geotechnical engineering exploration includes a transport trolley. Two symmetrically arranged mounting frames are fixedly connected to the upper surface of the transport trolley. A rectangular mounting plate is positioned between the two mounting frames. Threaded connecting blocks are fixedly connected to both sides of the rectangular mounting plate. A first driving assembly for moving the threaded connecting blocks is provided on the side wall of the mounting frame. A rotary drilling cylinder is rotatably connected through and to the side wall of the rectangular mounting plate. A auger bit is fixedly connected to the end of the rotary drilling cylinder. A second driving assembly for rotating the rotary drilling cylinder is provided on the side wall of the rectangular mounting plate. An adapter opening is provided on the outer surface of the rotary drilling cylinder. A sealing plate is slidably connected inside the adapter opening. A soil sampling cylinder is provided inside the rotary drilling cylinder. A soil inlet is provided on the surface of the soil sampling cylinder. A rotating soil sampling mechanism is installed inside the soil sampling cylinder. A support and guide assembly is provided between the two mounting frames.

[0006] In some embodiments, the first drive assembly includes two fixing blocks fixedly connected to the side wall of the mounting bracket, a threaded rod rotatably connected between the two fixing blocks, a threaded connecting block threadedly connected to the outer surface of the threaded rod, and a first servo motor fixedly connected to the side wall of one of the fixing blocks, the output shaft of the first servo motor being fixedly connected to the end of the threaded rod.

[0007] In some embodiments, the side wall of the mounting bracket has a through-hole, and the threaded connecting block is slidably connected to the inner wall of the through-hole.

[0008] In some embodiments, the second drive assembly includes a second servo motor fixedly connected to the side wall of a rectangular mounting plate, the output shaft of the second servo motor being fixedly connected to a second gear, and a first gear being fixedly connected to the outer surface of the screw-in cylinder, the first gear meshing with the second gear.

[0009] In some embodiments, a first connecting rod is fixedly connected to the side wall of the sealing plate. The end of the first connecting rod away from the sealing plate extends to the outside of the screw-in cylinder and is fixedly connected to a first fixing plate. The screw-in cylinder has an axially formed movable groove that communicates with the adapter port. The first connecting rod is located inside the movable groove. Two second fixing plates corresponding to the first fixing plate are fixedly connected to the outer surface of the screw-in cylinder.

[0010] In some embodiments, the rotating soil sampling mechanism includes a third servo motor fixedly connected to the inner wall of the soil sampling cylinder, the output shaft of the third servo motor being fixedly connected to a rotating rod, and a plurality of equidistantly arranged actuating rods being fixedly connected to the outer surface of the rotating rod.

[0011] In some embodiments, one end of the soil sampling cylinder is threadedly connected to a threaded cap, and a snap-fit ​​block is fixedly connected to the outer surface of the threaded cap, the snap-fit ​​block snapping into the inner wall of the cylinder.

[0012] In some embodiments, a second connecting rod is fixedly connected to the other end of the soil sampling cylinder, and a third fixing plate is fixedly connected to the end of the second connecting rod away from the soil sampling cylinder. The third fixing plate is connected to the end of the screw-in cylinder by bolts.

[0013] In some embodiments, the support guide assembly includes two mounting shafts, which are respectively fixedly connected to opposite sides of the two mounting brackets. A mounting base is fixedly connected between the two mounting shafts, and the upper surface of the mounting base has an arc-shaped opening, in which the screw-in cylinder overlaps.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. In this invention, the first connecting rod moves the sealing plate inside the movable groove, opening the adapter port. At this time, the adapter port corresponds to the soil inlet. Then, the third servo motor is started, and the output shaft of the third servo motor rotates the rotating rod. The rotating rod rotates multiple equidistantly arranged actuating rods. The actuating rods can extend to the outside of the rotary cylinder, thereby tamping the soil outside the rotary cylinder and allowing the soil to enter the soil sampling cylinder. This allows for selective soil sampling from different locations as needed, without mixing soil from different locations together, thus ensuring data accuracy.

[0016] 2. The invention starts the second servo motor, and the output shaft of the second servo motor drives the second gear to rotate. Since the first gear meshes with the second gear, the first gear drives the spiral feed cylinder to rotate, and the spiral feed cylinder drives the auger to rotate. At the same time, the first servo motor is started, and the output shaft of the first servo motor drives the threaded rod to rotate, so that the threaded connecting block carries the rectangular mounting plate to move along the through-hole. The auger rotates and feeds while the auger is driven into the shallow soil along with the spiral feed cylinder. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is one of the three-dimensional schematic diagrams of the present invention;

[0019] Figure 2 This is a second three-dimensional schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the spiral advance cylinder structure of the present invention;

[0021] Figure 4 For the present invention Figure 3 -A magnified view of a portion;

[0022] Figure 5 This is a schematic diagram of the threaded connection block structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the soil sampling cylinder structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the internal structure of the soil sampling cylinder of the present invention;

[0025] Figure 8 This is a side sectional view of the soil sampling cylinder of the present invention;

[0026] Figure 9 This is a schematic diagram of the mounting base structure of the present invention.

[0027] The components are as follows: 1. Transport trolley; 2. Mounting frame; 3. Through-hole; 4. Rectangular mounting plate; 5. Threaded connecting block; 6. Fixing block; 7. First servo motor; 8. Threaded rod; 9. Screw-in cylinder; 10. First gear; 11. Second servo motor; 12. Second gear; 13. Spiral drill bit; 14. Adapter port; 15. Sealing plate; 16. First connecting rod; 17. First fixing plate; 18. Movable groove; 19. Second fixing plate; 20. Soil sampling cylinder; 21. Threaded cap; 22. Snap-fit ​​block; 23. Second connecting rod; 24. Third fixing plate; 25. Soil inlet; 26. Third servo motor; 27. Rotating rod; 28. Actuating rod; 29. ​​Mounting shaft; 30. Mounting base; 31. Arc-shaped opening. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0029] Example 1

[0030] like Figures 1-9 As shown, this embodiment of the invention provides a shallow soil sampling device for geotechnical engineering exploration, including a transport trolley 1. Two symmetrically arranged mounting frames 2 are fixedly connected to the upper surface of the transport trolley 1. A rectangular mounting plate 4 is arranged between the two mounting frames 2. Threaded connecting blocks 5 are fixedly connected to both sides of the rectangular mounting plate 4. A through-hole 3 is opened on the side wall of the mounting frame 2. The threaded connecting blocks 5 are slidably connected to the inner wall of the through-hole 3. The threaded connecting blocks 5 can slide inside the through-hole 3, ensuring the stable movement of the rectangular mounting plate 4.

[0031] like Figure 1 , Figure 2 , Figure 5As shown, the side wall of the mounting frame 2 is provided with a first drive assembly for driving the threaded connecting block 5 to move. The first drive assembly includes two fixed blocks 6 fixedly connected to the side wall of the mounting frame 2. A threaded rod 8 is rotatably connected between the two fixed blocks 6. The threaded connecting block 5 is threadedly connected to the outer surface of the threaded rod 8. A first servo motor 7 is fixedly connected to the side wall of one of the fixed blocks 6. The output shaft of the first servo motor 7 is fixedly connected to the end of the threaded rod 8. When the first servo motor 7 is started, the output shaft of the first servo motor 7 rotates the threaded rod 8, causing the threaded connecting block 5 to move along the through-hole 3 with the rectangular mounting plate 4. The auger drill bit 13 rotates and feeds while drilling into the shallow soil with the auger drill bit 13 and the auger drill 9.

[0032] A rotary cylinder 9 is rotatably connected through the side wall of a rectangular mounting plate 4. A spiral drill bit 13 is fixedly connected to the end of the rotary cylinder 9. A second drive assembly for driving the rotary cylinder 9 to rotate is provided on the side wall of the rectangular mounting plate 4. The second drive assembly includes a second servo motor 11 fixedly connected to the side wall of the rectangular mounting plate 4. A second gear 12 is fixedly connected to the output shaft of the second servo motor 11. A first gear 10 is fixedly connected to the outer surface of the rotary cylinder 9. The first gear 10 meshes with the second gear 12. When the second servo motor 11 is started, the output shaft of the second servo motor 11 drives the second gear 12 to rotate. Since the first gear 10 meshes with the second gear 12, the first gear 10 drives the rotary cylinder 9 to rotate, and the rotary cylinder 9 drives the spiral drill bit 13 to rotate, thereby facilitating the entry of the rotary cylinder 9 into the soil.

[0033] like Figures 3-4 As shown, the outer surface of the screw-in cylinder 9 is provided with an adapter port 14. A sealing plate 15 is slidably connected inside the adapter port 14. A first connecting rod 16 is fixedly connected to the side wall of the sealing plate 15. The end of the first connecting rod 16 away from the sealing plate 15 extends to the outside of the screw-in cylinder 9 and is fixedly connected to a first fixing piece 17. The screw-in cylinder 9 is axially provided with a movable groove 18, which communicates with the adapter port 14. The first connecting rod 16 is located inside the movable groove 18. Two second fixing pieces 19 corresponding to the first fixing piece 17 are fixedly connected to the outer surface of the screw-in cylinder 9. When the first fixing piece 17 is separated from one of the second fixing pieces 19, the sealing plate 15 is moved inside the movable groove 18 by the first connecting rod 16, so that the adapter port 14 is opened. When the first fixing piece 17 is fixed to the other second fixing piece 19, the sealing plate 15 can close the adapter port 14.

[0034] like Figures 6-8As shown, a soil sampling cylinder 20 is installed inside the rotary cylinder 9. One end of the soil sampling cylinder 20 is threadedly connected to a threaded cap 21. A locking block 22 is fixedly connected to the outer surface of the threaded cap 21, engaging with the inner wall of the rotary cylinder 9. A second connecting rod 23 is fixedly connected to the other end of the soil sampling cylinder 20. A third fixing plate 24 is fixedly connected to the end of the second connecting rod 23 away from the soil sampling cylinder 20. The third fixing plate 24 is connected to the end of the rotary cylinder 9 by bolts. A soil inlet 25 is provided on the surface of the soil sampling cylinder 20. A rotating soil sampling mechanism is installed inside the soil sampling cylinder 20. The soil extraction mechanism includes a third servo motor 26 fixedly connected to the inner wall of the soil extraction cylinder 20. The output shaft of the third servo motor 26 is fixedly connected to a rotating rod 27. Multiple equidistant actuating rods 28 are fixedly connected to the outer surface of the rotating rod 27. When the third servo motor 26 is started, the output shaft of the third servo motor 26 rotates the rotating rod 27, and the rotating rod 27 rotates the multiple equidistant actuating rods 28. The actuating rods 28 can extend to the outside of the rotary cylinder 9, thereby tamping the soil outside the rotary cylinder 9 and allowing the soil to enter the interior of the soil extraction cylinder 20.

[0035] like Figure 9 As shown, a support and guide assembly is provided between the two mounting brackets 2. The support and guide assembly includes two mounting shafts 29, which are fixedly connected to opposite sides of the two mounting brackets 2. A mounting seat 30 is fixedly connected between the two mounting shafts 29. An arc-shaped opening 31 is provided on the upper surface of the mounting seat 30. The screw-in cylinder 9 overlaps in the arc-shaped opening 31. The mounting seat 30 provides good guidance and support for the screw-in cylinder 9.

[0036] Working principle:

[0037] When in use, the second servo motor 11 is started, and the output shaft of the second servo motor 11 drives the second gear 12 to rotate. Since the first gear 10 meshes with the second gear 12, the first gear 10 drives the screw feed cylinder 9 to rotate, and the screw feed cylinder 9 drives the spiral drill bit 13 to rotate. At the same time, the first servo motor 7 is started, and the output shaft of the first servo motor 7 drives the threaded rod 8 to rotate, so that the threaded connecting block 5 carries the rectangular mounting plate 4 along the through-hole 3. The spiral drill bit 13 rotates and feeds while drilling into the shallow soil with the screw feed cylinder 9.

[0038] Position the sealing plate 15 to the location where soil needs to be removed, ensuring that the sealing plate 15 is facing upwards (e.g., Figure 1(As shown in the diagram), then the first fixing plate 17 is separated from one of the second fixing plates 19, and the first connecting rod 16 moves the closing plate 15 inside the movable groove 18, so that the adapter port 14 is opened. At this time, the adapter port 14 corresponds to the soil inlet 25. Then the third servo motor 26 is started. The output shaft of the third servo motor 26 rotates the rotating rod 27. The rotating rod 27 rotates the multiple equidistantly arranged actuating rods 28. The actuating rods 28 can extend to the outside of the rotary cylinder 9, thereby tamping the soil outside the rotary cylinder 9, so that the soil enters the inside of the soil sampling cylinder 20.

[0039] Then, the third fixing plate 24 is disconnected from the screw-in cylinder 9, and the soil sampling cylinder 20 is pulled out from the inside of the screw-in cylinder 9 through the second connecting rod 23. The soil inside the soil sampling cylinder 20 can be poured out by opening the threaded cover 21. In the above manner, shallow soil samples can be taken at different depths.

[0040] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the invention by those skilled in the art without departing from the spirit and essence of the invention, and such modifications or substitutions should all be within the scope of the invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the invention should also be covered within the protection scope of the invention. Therefore, the protection scope of the invention should be determined by the scope of the claims.

Claims

1. A shallow soil sampling device for geotechnical engineering investigation, comprising a transport trolley (1), characterized in that, The upper surface of the transport trolley (1) is fixedly connected to two symmetrically arranged mounting brackets (2). A rectangular mounting plate (4) is arranged between the two mounting brackets (2). Threaded connecting blocks (5) are fixedly connected to both sides of the rectangular mounting plate (4). A first driving component for driving the threaded connecting blocks (5) to move is provided on the side wall of the mounting bracket (2). A screw-in cylinder (9) is rotatably connected through the side wall of the rectangular mounting plate (4). A spiral drill bit (13) is fixedly connected to the end of the screw-in cylinder (9). A second driving component for driving the screw-in cylinder (9) to rotate is provided on the side wall of the rectangular mounting plate (4). An adapter port (14) is opened on the outer surface of the screw-in cylinder (9). A sealing plate (15) is slidably connected inside the adapter port (14). A soil sampling cylinder (20) is arranged inside the screw-in cylinder (9). A soil inlet (25) is opened on the surface of the soil sampling cylinder (20). A rotating soil sampling mechanism is installed inside the soil sampling cylinder (20). A support and guide component is arranged between the two mounting brackets (2). The side wall of the sealing plate (15) is fixedly connected to a first connecting rod (16). The end of the first connecting rod (16) away from the sealing plate (15) extends to the outside of the screw-in cylinder (9) and is fixedly connected to a first fixing plate (17). The screw-in cylinder (9) is axially provided with a movable groove (18). The movable groove (18) communicates with the adapter port (14). The first connecting rod (16) is located inside the movable groove (18). The outer surface of the screw-in cylinder (9) is fixedly connected to two second fixing plates (19) corresponding to the first fixing plate (17).

2. The shallow soil sampling device for geotechnical engineering investigation as described in claim 1, characterized in that, The first drive assembly includes two fixed blocks (6) fixedly connected to the side wall of the mounting bracket (2), and a threaded rod (8) rotatably connected between the two fixed blocks (6). The threaded connecting block (5) is threadedly connected to the outer surface of the threaded rod (8). A first servo motor (7) is fixedly connected to the side wall of one of the fixed blocks (6), and the output shaft of the first servo motor (7) is fixedly connected to the end of the threaded rod (8).

3. The shallow soil sampling device for geotechnical engineering investigation as described in claim 1, characterized in that, The mounting bracket (2) has a through-hole (3) on its side wall, and the threaded connecting block (5) is slidably connected to the inner wall of the through-hole (3).

4. The shallow soil sampling device for geotechnical engineering investigation as described in claim 1, characterized in that, The second drive assembly includes a second servo motor (11) fixedly connected to the side wall of the rectangular mounting plate (4), the output shaft of the second servo motor (11) is fixedly connected to a second gear (12), and the outer surface of the screw-in cylinder (9) is fixedly connected to a first gear (10), which meshes with the second gear (12).

5. The shallow soil sampling device for geotechnical engineering investigation as described in claim 1, characterized in that, The rotating soil sampling mechanism includes a third servo motor (26) fixedly connected to the inner wall of the soil sampling cylinder (20). The output shaft of the third servo motor (26) is fixedly connected to a rotating rod (27). Multiple equidistant actuating rods (28) are fixedly connected to the outer surface of the rotating rod (27).

6. The shallow soil sampling device for geotechnical engineering investigation as described in claim 1, characterized in that, One end of the soil sampling cylinder (20) is threadedly connected to a threaded cap (21), and a snap-fit ​​block (22) is fixedly connected to the outer surface of the threaded cap (21). The snap-fit ​​block (22) is snapped into the inner wall of the screw-in cylinder (9).

7. The shallow soil sampling device for geotechnical engineering investigation as described in claim 1 or 6, characterized in that, The other end of the soil sampling cylinder (20) is fixedly connected to a second connecting rod (23), and the end of the second connecting rod (23) away from the soil sampling cylinder (20) is fixedly connected to a third fixing plate (24). The third fixing plate (24) is connected to the end of the screw-in cylinder (9) by bolts.

8. The shallow soil sampling device for geotechnical engineering investigation as described in claim 1, characterized in that, The support guide assembly includes two mounting shafts (29), which are fixedly connected to opposite sides of the two mounting brackets (2). A mounting seat (30) is fixedly connected between the two mounting shafts (29). An arc-shaped opening (31) is provided on the upper surface of the mounting seat (30), and the screw-in cylinder (9) overlaps in the arc-shaped opening (31).

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