Device convenient for collecting soil samples at different depths

Abstract

The utility model discloses a device convenient for collecting soil samples of different depths, and belongs to the technical field of soil collection, the device comprises a moving frame, a sampling barrel is arranged on the moving frame, a drill bit is arranged in the sampling barrel, the drill bit is located at the bottom end of the sampling barrel, a moving rod is fixed on the top surface of the drill bit, and a driving pipe is inserted into the top end of the sampling barrel; the driving pipe is rotationally connected with the sampling barrel, the top end of the moving rod penetrates through the driving pipe, the moving rod is in threaded connection with the driving pipe, a driving assembly used for driving the driving pipe to move is arranged on the sampling barrel, and a limiting piece used for limiting the moving rod to rotate along with the driving pipe is arranged in the sampling barrel; a driving mechanism for driving the sampling barrel to move along the vertical direction is arranged on the moving frame. The soil sampling device has the effect that a worker can conveniently take out a soil sample in the sampling barrel.

Description

A device for easily collecting soil samples at different depths Technical Field

[0001] This application relates to the field of soil sampling, and in particular to a device for facilitating the collection of soil samples at different depths. Background Technology

[0002] A soil sampling device is a device used to collect soil samples, which help researchers gain a deeper understanding of the physical, chemical, and biological properties of soil.

[0003] When using existing soil sampling devices to sample soil at different depths at the same location, the sampling tube is usually inserted into the soil at a certain depth first, and then pulled out of the soil. Because the sampling tube is deep, the soil fills the sampling tube, making it inconvenient for staff to take the soil out of the sampling tube. Summary of the Invention

[0004] To address the problem of inconvenience for staff when collecting soil samples from different depths using sampling tubes, this application provides a device that facilitates the collection of soil samples from different depths.

[0005] The device provided in this application for facilitating the collection of soil samples at different depths adopts the following technical solution:

[0006] A device for facilitating the collection of soil samples at different depths includes a movable frame, a sampling tube mounted on the movable frame, a drill bit disposed inside the sampling tube, the drill bit being located at the bottom end of the sampling tube, a moving rod fixed to the top surface of the drill bit, a drive tube inserted into the top end of the sampling tube and rotatably connected to the sampling tube, the top end of the moving rod passing through the drive tube and threadedly connected to the drive tube, a drive assembly for driving the drive tube to move on the sampling tube, a limiting member for restricting the moving rod from rotating with the drive tube inside the sampling tube, and a drive mechanism for driving the sampling tube to move vertically on the movable frame.

[0007] By adopting the above technical solution, the mobile frame is moved to the location where soil needs to be collected. Then, the driving mechanism drives the sampling tube to move downwards, which in turn drives the drill bit downwards, allowing the sampling tube to drill into the soil. When the sampling tube reaches the required collection depth, the driving component drives the driving tube to rotate, which in turn drives the moving rod to move upwards. The moving rod then drives the drill bit upwards, allowing the drill bit to enter the sampling tube. The driving mechanism then drives the sampling tube to move downwards again, filling the sampling tube with soil. Next, the driving mechanism drives the sampling tube upwards to above the ground, whereupon the driving component drives the driving tube to rotate in the opposite direction, which in turn drives the moving rod downwards. The moving rod then drives the drill bit downwards, causing the drill bit to push the soil sample out of the sampling tube, making it easier for staff to remove the soil sample from the sampling tube.

[0008] Preferably, the moving frame has through slots on its opposite inner sides, a moving plate is fixed to the outer circumferential surface of the sampling cylinder, and the two ends of the moving plate pass through the two through slots respectively. Mounting plate one is fixed to the top of the two opposite sides of the moving frame, and mounting plate two is fixed to the bottom of the opposite sides of the moving frame. The driving mechanism includes a screw rotatably mounted between mounting plate one and mounting plate two. The screw passes through the moving plate and is threadedly connected to the moving plate. Motor one is fixed to the top surface of mounting plate one, and the bottom end of the output shaft of motor one is fixedly connected to the top end of the screw.

[0009] By adopting the above technical solution, when the mobile frame is moved to the location for soil sampling, two motors are started simultaneously. The output shaft of motor one drives the screw to rotate, and the screw drives the moving plate to move downward, thereby causing the moving plate to move the sampling cylinder downward, so that the sampling cylinder is inserted into the soil.

[0010] Preferably, the movable plate has sliding grooves at both ends of its two sides, the inner wall of the sliding groove is in contact with the inner wall of the through groove, and the movable plate is slidably connected to the movable frame in the vertical direction through the sliding groove.

[0011] By adopting the above technical solution, grooves are opened at both ends of the two sides of the moving plate, so that the inner wall of the groove fits with the inner wall of the through groove, thereby making the moving plate more stable when moving vertically.

[0012] Preferably, the drive assembly includes a second motor disposed on the movable plate, a first sprocket disposed on the output shaft of the second motor, a second sprocket disposed on the drive tube, and a transmission chain wound on the first sprocket and the second sprocket.

[0013] By adopting the above technical solution, motor two is started, the output shaft of motor two drives sprocket one to rotate, sprocket one drives the transmission chain to rotate, the transmission chain drives sprocket two to rotate, thereby sprocket two drives the drive tube to rotate.

[0014] Preferably, a guide block is fixed on the inner circumferential surface of the sampling cylinder, and a guide groove is provided on the outer circumferential surface of the moving rod. The guide block is slidably disposed in the guide groove along the vertical direction.

[0015] By adopting the above technical solution, when the drive tube rotates and drives the moving rod to move vertically, the guide block moves vertically in the guide groove, thereby reducing the possibility that the moving rod will follow the rotation of the drive tube.

[0016] Preferably, the outer circumferential surface of the sampling tube is provided with scale lines.

[0017] By adopting the above technical solution, scale lines are set on the outer circumference of the sampling tube, which makes it easier for staff to observe the depth of the sampling tube inserted into the soil and facilitates the sampling tube to sample soil at different depths.

[0018] Preferably, the bottom end of the sampling tube is chamfered.

[0019] By adopting the above technical solution, a chamfer is set at the bottom of the sampling tube to reduce the resistance between the bottom surface of the sampling tube and the soil when the sampling tube is inserted into the soil, thereby facilitating the insertion of the sampling tube into the soil.

[0020] Preferably, casters are fixed at the bottom corners of the mounting plate two.

[0021] By adopting the above technical solution, casters are fixed to the bottom surface of the mounting plate 2, which facilitates the movement of the mobile frame when soil needs to be collected from different locations.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. Move the mobile frame to the location where soil needs to be collected. Then, drive the sampling tube downwards via the drive mechanism. The sampling tube drives the drill bit downwards, allowing the sampling tube to drill into the soil. When the sampling tube reaches the required depth, the drive assembly drives the drive tube to rotate. The drive tube drives the moving rod upwards, which in turn drives the drill bit upwards, bringing it into the sampling tube. Then, the drive mechanism drives the sampling tube downwards again, filling it with soil. Next, the drive mechanism drives the sampling tube upwards to above ground level. The drive assembly then drives the drive tube to rotate in the opposite direction, causing the drive tube to drive the moving rod downwards. The moving rod drives the drill bit downwards, allowing the drill bit to push the soil sample out of the sampling tube, making it easier for staff to remove the soil sample.

[0024] 2. When the mobile frame is moved to the soil sampling position, both motors are started at the same time. The output shaft of motor one drives the screw to rotate, and the screw drives the moving plate to move downward, thereby causing the moving plate to move the sampling tube downward, so that the sampling tube is inserted into the soil.

[0025] 3. When the drive tube rotates and drives the moving rod to move vertically, the guide block moves vertically within the guide groove, thereby reducing the possibility that the moving rod will follow the rotation of the drive tube. Attached Figure Description

[0026] Figure 1 is a schematic diagram of the overall structure of the device for facilitating the collection of soil samples at different depths according to an embodiment of this application.

[0027] Figure 2 is an enlarged view of point A in Figure 1.

[0028] Figure 3 is a cross-sectional view of the sampling tube in an embodiment of this application.

[0029] Figure 4 is an enlarged view of point B in Figure 3.

[0030] Reference numerals in the attached drawings: 1. Moving frame; 11. Clearance hole; 2. Sampling cylinder; 21. Drill bit; 22. Moving rod; 23. Drive tube; 24. Guide block; 25. Guide groove; 26. Chamfer; 27. Scale line; 3. Moving plate; 31. Motor II; 32. Sprocket I; 33. Sprocket II; 34. Transmission chain; 35. Through groove; 36. Slide groove; 4. Mounting plate I; 41. Mounting plate II; 42. Screw; 43. Motor I; 44. Caster wheel. Detailed Implementation

[0031] The present application will be further described in detail below with reference to Figures 1-4.

[0032] This application discloses a device for facilitating the collection of soil samples at different depths.

[0033] Referring to Figures 1 and 2, a device for facilitating the collection of soil samples at different depths includes a movable frame 1. A sampling tube 2 is disposed within the movable frame 1. A chamfer 26 is formed at the bottom edge of the sampling tube 2, and scale lines 27 are engraved on the outer circumference of the sampling tube 2. A drill bit 21 is vertically slidable inside the sampling tube 2, located at the bottom end of the sampling tube 2 and extending beyond it. A moving rod 22 is fixed to the top surface of the drill bit 21. A clearance hole 11 is formed on the top surface of the movable frame 1, through which the top end of the moving rod 22 can pass. A drive tube 23 is inserted into the top end of the sampling tube 2, rotatably connected to the sampling tube 2. The top end of the moving rod 22 passes through the drive tube 23, and the moving rod 22 is threadedly connected to the drive tube 23.

[0034] Referring to Figures 3 and 4, two guide blocks 24 are fixed on the inner circumferential surface of the sampling cylinder 2, and the two guide blocks 24 are equally spaced along the circumference of the sampling cylinder 2. Two guide grooves 25 are formed on the outer circumferential surface of the moving rod 22, and the two guide blocks 24 are respectively slidably disposed in the two guide grooves 25 along the vertical direction.

[0035] Referring to Figures 1 and 3, a movable plate 3 is fixedly fitted onto the outer circumferential surface of the sampling cylinder 2. Slots 35 are provided on the opposite inner surfaces of the movable frame 1, and the two ends of the movable plate 3 pass through two slots 35 respectively. Slots 36 are provided on both sides of the movable plate 3, with the inner wall of the slot 36 fitting against the inner wall of the slot 35. The movable plate 3 is slidably connected to the movable frame 1 vertically via the slots 36. A second motor 31 is fixed to the top surface of the movable plate 3. A first sprocket 32 ​​is fitted onto the output shaft of the second motor 31. A second sprocket 33 is fitted onto the outer circumferential surface of the drive tube 23. A transmission chain 34 is wound around the first sprocket 32 ​​and the second sprocket 33.

[0036] Referring to Figure 1, mounting plates 1-4 are fixed to the top of the two mutually distant sides of the movable frame 1, and mounting plates 2-41 are fixed to the bottom of the two mutually distant sides of the movable frame 1. Universal wheels 44 are installed at the bottom corners of the mounting plates 2-41. Screws 42 are rotatably mounted on the bottom surface of mounting plate 1-4 and the top surface of mounting plate 2-41. The screws 42 pass through the movable plate 3 and are threadedly connected to the movable plate 3. A motor 1-43 is fixed to the top surface of mounting plate 1-4, and the bottom end of the output shaft of motor 1-43 is fixedly connected to the top end of the screws 42.

[0037] The implementation principle of the device for facilitating the collection of soil samples at different depths according to the embodiments of this application is as follows: When it is necessary to sample soil at different depths, the mobile frame 1 is moved to the soil collection position, and then two motors 43 are started simultaneously. The output shafts of the two motors 43 drive the two screws 42 to rotate respectively. The screws 42 drive the moving plate 3 to move downward, and the moving plate 3 drives the sampling cylinder 2 to move downward, so that the drill bit 21 of the sampling cylinder 2 moves downward, and the sampling cylinder 2 drills into the soil. The staff observes the scale line 27 on the outer circumference of the sampling cylinder 2. When the bottom end of the sampling cylinder 2 moves to the sampling depth, the motor 43 is turned off, so that the sampling cylinder 2 stops moving downward. Then, start motor 2 (31), causing its output shaft to drive sprocket 1 (32) to rotate. Sprocket 1 (32) drives transmission chain 34 to rotate, which in turn drives sprocket 2 (33) to rotate. Sprocket 2 (33) then drives drive tube 23 to rotate, which in turn drives moving rod 22 to move drill bit 21 upwards, bringing drill bit 21 into sampling cylinder 2. Next, start motor 1 (43), causing its output shaft to drive screw 42 to rotate. Screw 42 then drives moving plate 3 to move sampling cylinder 2 downwards, filling the sampling cylinder 2 with soil at the sampling depth. Finally, start motor 1 (43) again... The output shaft of motor 3 drives screw 42 to rotate in the opposite direction, causing screw 42 to drive moving plate 3 to move sampling cylinder 2 upward, so that sampling cylinder 2 moves above the ground. Then motor 1 43 is turned off, and motor 2 31 is started, causing the output shaft of motor 2 31 to drive sprocket 1 32 to rotate. Sprocket 1 32 drives transmission chain 34 to rotate, and transmission chain 34 drives sprocket 2 33 to rotate, so that sprocket 2 33 drives drive tube 23 to rotate. Drive tube 23 drives moving rod 22 to move drill bit 21 downward, so that drill bit 21 can push out the soil in sampling cylinder 2, and thus make it easier for staff to take out soil samples from sampling cylinder 2.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for facilitating the collection of soil samples at different depths, characterized in that: The device includes a movable frame (1), on which a sampling tube (2) is mounted. A drill bit (21) is mounted inside the sampling tube (2). The drill bit (21) is located at the bottom end of the sampling tube (2). A moving rod (22) is fixed to the top surface of the drill bit (21). A drive tube (23) is inserted into the top end of the sampling tube (2). The drive tube (23) is rotatably connected to the sampling tube (2). The top end of the moving rod (22) passes through the drive tube (23). The moving rod (22) is threadedly connected to the drive tube (23). A drive assembly for driving the drive tube (23) to move is mounted on the sampling tube (2). A limiting member for restricting the moving rod (22) from rotating with the drive tube (23) is mounted inside the sampling tube (2). A drive mechanism for driving the sampling tube (2) to move vertically is mounted on the movable frame (1).

2. The device for facilitating the collection of soil samples at different depths according to claim 1, characterized in that: The moving frame (1) has through slots (35) on its opposite inner sides. The sampling cylinder (2) has a moving plate (3) fixed on its outer circumference. The two ends of the moving plate (3) pass through the two through slots (35). The top of the moving frame (1) on its two opposite sides is fixed with a mounting plate (4). The bottom of the moving frame (1) on its opposite sides is fixed with a mounting plate (41). The driving mechanism includes a screw (42) rotatably mounted between the mounting plate (4) and the mounting plate (41). The screw (42) passes through the moving plate (3) and is threadedly connected to the moving plate (3). The top surface of the mounting plate (4) is fixed with a motor (43). The bottom end of the output shaft of the motor (43) is fixedly connected to the top end of the screw (42).

3. The device of claim 2, wherein: The movable plate (3) has sliding grooves (36) at both ends on both sides. The inner wall of the sliding groove (36) is in contact with the inner wall of the through groove (35). The movable plate (3) is slidably connected to the movable frame (1) in the vertical direction through the sliding groove (36).

4. The device for facilitating the collection of soil samples at different depths according to claim 2, characterized in that: The drive assembly includes a second motor (31) mounted on the movable plate (3), a first sprocket (32) mounted on the output shaft of the second motor (31), a second sprocket (33) mounted on the drive tube (23), and a transmission chain (34) wound around the first sprocket (32) and the second sprocket (33).

5. The device for facilitating the collection of soil samples at different depths according to claim 4, characterized in that: The sampling tube (2) has a guide block (24) fixed on its inner circumferential surface, and the moving rod (22) has a guide groove (25) on its outer circumferential surface. The guide block (24) is slidably disposed in the guide groove (25) in the vertical direction.

6. The device for facilitating the collection of soil samples at different depths according to claim 1, characterized in that: The outer circumferential surface of the sampling tube (2) is provided with scale lines (27).

7. The device of claim 1, wherein: The bottom end of the sampling tube (2) is chamfered (26).

8. The device of claim 2, wherein: Universal wheels (44) are fixed at the bottom corners of the mounting plate 2 (41).

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