A soil sampling device

Abstract

The utility model discloses a kind of soil sampling devices, mainly related to soil sampling technical field;Including power source, transmission rod and sampling cylinder sequentially arranged from top to bottom, the outer wall of the sampling cylinder is equipped with detachable arc cover plate, sampling cylinder includes sequentially arranged connector, barrel, annular head from top to bottom, the bottom end of the annular head is equipped with several teeth along the circumferential direction of annular head, one-time sampling cylinder is equipped in the barrel, the inner diameter of the one-time sampling cylinder is not less than the inner diameter of annular head, the outer wall of the one-time sampling cylinder and the inner wall of barrel abut, the outer wall of the barrel is equipped with the inlet and outlet window corresponding with one-time sampling cylinder, the cross section of arc cover plate is semicircular arc, arc cover plate is used for closing inlet and outlet window;The utility model uses built-in one-time sampling cylinder, can avoid destroying soil sample structure, and reduce the cleaning work of exploration personnel.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, specifically a soil sampling device. Background Technology

[0002] In geological exploration, powered soil samplers are frequently used to collect surface matrix soil. Existing powered soil samplers typically use a hand-operated gasoline or diesel engine as the power source. From top to bottom, they consist of a power source, a drive rod, and a sampling cylinder. The bottom of the sampling cylinder has several teeth along its circumference, and a window is opened on the outer wall of the sampling cylinder, which is closed by a removable cover. During sampling, the power source is started, driving the sampling cylinder to rotate. As the sampling cylinder rotates and drives downward into the ground, soil enters the sampling cylinder from the bottom. After sampling, the cover is opened, and the collected soil is removed from the side of the sampling cylinder. However, when sampling muddy or relatively moist soil, it often sticks to the sampling cylinder and cannot be poured out from the window on the side of the sampling cylinder. The soil can only be shoveled out with tools such as shovels, which not only damages the structure of the soil sample but also adds extra work for the exploration personnel. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and provide a soil sampling device that uses a built-in disposable sampling tube, which can avoid damaging the soil sample structure and reduce the cleaning work of exploration personnel.

[0004] To achieve the above objectives, this utility model employs the following technical solution: A soil sampling device includes a power source, a transmission rod, and a sampling tube arranged sequentially from top to bottom. The outer wall of the sampling tube is provided with a detachable arc-shaped cover plate. The sampling tube includes a connector, a cylinder body, and an annular head arranged sequentially from top to bottom. Several teeth are provided along the circumference of the bottom end of the annular head. A disposable sampling tube is provided inside the cylinder body. The inner diameter of the disposable sampling tube is not less than the inner diameter of the annular head. The outer wall of the disposable sampling tube abuts against the inner wall of the cylinder body. The outer wall of the cylinder body is provided with an inlet / outlet window adapted to the disposable sampling tube. The arc-shaped cover plate has a semi-circular cross-section and is used to close the inlet / outlet window.

[0005] Preferably, the top of the annular head is provided with a slot adapted to the arc-shaped cover plate, the bottom of the outer wall of the connector is provided with a groove adapted to the arc-shaped cover plate, and a cap is provided on the connector to prevent the arc-shaped cover plate from falling off. The cap is fitted onto the connector and is slidably connected to the connector.

[0006] Preferably, the connector includes a lower column and a threaded post fixed to the top of the lower column. The outer diameter of the threaded post is smaller than the outer diameter of the lower column. The cap has a central hole adapted to the threaded post, and the threaded post has a hand-tightening nut. When the top end of the cap body abuts against the top end of the lower column, the top end of the arc-shaped cover plate is located inside the cap body, and the bottom end of the hand-tightening nut abuts against the top end of the cap body.

[0007] Preferably, the outer wall of the cylinder on the side away from the inlet / outlet window is provided with an ejection hole.

[0008] Preferably, the disposable sampling tube has V-shaped grooves on both the left and right outer walls.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention installs a disposable sampling tube inside the sampling cylinder. During sampling, the soil directly enters the disposable sampling tube. After sampling, the disposable sampling tube is removed from the sampling cylinder, which can ensure the integrity of the soil sample structure. The use of a disposable sampling tube also reduces the amount of soil residue in the sampling cylinder. When cleaning the sampling cylinder, only the soil inside the annular head needs to be cleaned, which reduces the cleaning work of the exploration personnel. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the sampling tube.

[0012] Figure 3 This is a schematic diagram of the cross-section of the cylinder.

[0013] Figure 4 This is a schematic diagram of the cross-section of a disposable sampling tube.

[0014] The following are the labels in the attached diagram: 1. Power source; 2. Transmission rod; 3. Sampling cylinder; 31. Connector; 311. Lower column; 312. Threaded column; 32. Cylinder; 33. Annular head; 34. Tooth; 35. Cap; 36. Dispensing hole; 4. Arc-shaped cover plate; 5. Disposable sampling cylinder; 51. V-groove; 6. Hand-tightening nut. Detailed Implementation

[0015] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0016] Example: As attached Figure 1-4As shown, this utility model describes a soil sampling device, including a power source 1, a transmission rod 2, and a sampling cylinder 3 arranged sequentially from top to bottom. The outer wall of the sampling cylinder 3 is provided with a detachable arc-shaped cover plate 4. The power source 1 and the transmission rod 2 can be directly adopted from the power source and transmission rod of an existing power soil sampler. The output shaft of the power source is provided with a transmission sleeve. After the top end of the transmission rod is inserted into the transmission sleeve, it is connected by a pin. The bottom end of the transmission rod is provided with an insertion hole. After the connector 31 at the top end of the sampling cylinder 3 is inserted into the insertion hole, it is connected by a pin. This utility model mainly improves the structure of the sampling cylinder 3.

[0017] The sampling tube 3 includes a connector 31, a tube body 32, and an annular head 33 arranged sequentially from top to bottom. Several teeth 34 are provided at the bottom end of the annular head 33 along the circumference of the annular head 33. The connector 31, tube body 32, annular head 33, and teeth 34 can be an integral structure or welded together.

[0018] A disposable sampling tube 5 is provided inside the cylinder 32. The disposable sampling tube 5 is preferably a plastic tube that is easy to cut. The inner diameter of the disposable sampling tube 5 is not less than the inner diameter of the annular head 33. Preferably, the inner diameter of the disposable sampling tube 5 is the same as the inner diameter of the annular head 33. The outer wall of the disposable sampling tube 5 abuts against the inner wall of the cylinder 32. An inlet / outlet window adapted to the disposable sampling tube 5 is provided on the outer wall of the cylinder 32. After the inlet / outlet window is opened on the cylinder 32, the cross-section of the cylinder 32 is a semi-circular arc. The cross-section of the arc-shaped cover plate 4 is also a semi-circular arc. The arc-shaped cover plate 4 is used to close the inlet / outlet window.

[0019] In use, after assembling the present invention, open the arc-shaped cover plate 4, push the disposable sampling tube 5 into the tube body 32 through the inlet / outlet window, and then fix the arc-shaped cover plate 4 on the sampling tube 3; hold the handle on the power source 1, adjust the sampling tube 3 to be vertical, and start the power source 1 to perform soil sampling; after sampling is completed, lift the power source to remove the disposable sampling tube 5 from the sampling tube 3, thus completing the soil sampling. The soil sample is stored in the sampling tube 3. Then place the sampling tube 3 horizontally in a special soil sample placement box. After arriving at the laboratory, cut the outer wall of the sampling tube 3 radially to obtain a complete soil sample.

[0020] Preferably, to prevent the arc-shaped cover plate from falling off during sampling, the top of the annular head 33 is provided with a slot adapted to the arc-shaped cover plate 4, and the bottom of the outer wall of the arc-shaped cover plate 4 is provided with a plug adapted to the slot. The bottom of the outer wall of the connector 31 is provided with a slot adapted to the arc-shaped cover plate 4. The connector 31 is provided with a cap 35 for preventing the arc-shaped cover plate 4 from falling off. The cap 35 is fitted onto the connector 31 and slidably connected to the connector 31. The plug at the bottom of the arc-shaped cover plate 4 is inserted into the slot, the top of the arc-shaped cover plate 4 is inserted into the slot, and the cap 35 is moved down so that the top of the arc-shaped cover plate 4 is located inside the cap 35, thereby preventing the arc-shaped cover plate from falling off.

[0021] Preferably, the connector 31 includes a lower column 311 and a threaded post 312 fixed to the top of the lower column 311. The threaded post 312 is fixedly connected to the lower column 311 and can be an integral structure. The outer diameter of the threaded post 312 is smaller than the outer diameter of the lower column 311. A central hole adapted to the threaded post 312 is provided at the top of the cap 35. A hand-tightening nut 6 is provided on the threaded post 312. The inner diameter of the central hole is larger than the outer diameter of the threaded post 312 and smaller than the outer diameter of the hand-tightening nut 6. Rotating the hand-tightening nut 6 can adjust the position of the hand-tightening nut 6 on the threaded post 312. When the top end of the cap 35 abuts against the top end of the lower column 311, the top end of the arc-shaped cover plate 4 is located inside the cap 35. At this time, rotating the hand-tightening nut 6 so that the bottom end of the hand-tightening nut 6 abuts against the top end of the cap 35 can lock the position of the cap 35 and firmly lock the arc-shaped cover plate 4 inside the cap 35.

[0022] Preferably, in order to facilitate the removal of the disposable sampling tube from the sampling tube, the outer wall of the tube body 32 on the side away from the inlet / outlet window is provided with a dispensing hole 36. Tools such as screwdrivers and steel bars can be used to push the disposable sampling tube 5 through the dispensing hole 36 to push the disposable sampling tube 5 out of the inlet / outlet window.

[0023] Preferably, to facilitate the cutting of the disposable sampling tube and the extraction of soil samples from its interior, as shown in the attached document... Figure 4 As shown, V-shaped grooves 51 are provided on both the left and right outer walls of the disposable sampling tube 5, and the disposable sampling tube 5 is cut from the V-shaped grooves 51 for easy cutting.

Claims

1. A soil sampling device, comprising a power source (1), a transmission rod (2), and a sampling cylinder (3) arranged sequentially from top to bottom, wherein a detachable arc-shaped cover plate (4) is provided on the outer wall of the sampling cylinder (3), characterized in that: The sampling tube (3) includes a connector (31), a tube body (32), and an annular head (33) arranged sequentially from top to bottom. Several teeth (34) are provided at the bottom end of the annular head (33) along the circumference of the annular head (33). A disposable sampling tube (5) is provided inside the tube body (32). The inner diameter of the disposable sampling tube (5) is not less than the inner diameter of the annular head (33). The outer wall of the disposable sampling tube (5) abuts against the inner wall of the tube body (32). An inlet and outlet window adapted to the disposable sampling tube (5) is provided on the outer wall of the tube body (32). The cross-section of the arc-shaped cover plate (4) is a semi-circular arc. The arc-shaped cover plate (4) is used to close the inlet and outlet window.

2. The soil sampling device according to claim 1, characterized in that: The top of the annular head (33) is provided with a slot that is compatible with the arc-shaped cover plate (4), and the bottom of the outer wall of the connector (31) is provided with a slot that is compatible with the arc-shaped cover plate (4). The connector (31) is provided with a cap (35) to prevent the arc-shaped cover plate (4) from falling off. The cap (35) is fitted on the connector (31) and is slidably connected to the connector (31).

3. A soil sampling device according to claim 2, characterized in that: The connector (31) includes a lower column (311) and a threaded column (312) fixed on the top of the lower column (311). The outer diameter of the threaded column (312) is smaller than the outer diameter of the lower column (311). The cap (35) is provided with a central hole that is compatible with the threaded column (312). The threaded column (312) is provided with a hand-tightening nut (6). When the top end of the cap (35) abuts against the top end of the lower column (311), the top end of the arc-shaped cover plate (4) is located inside the cap (35), and the bottom end of the hand-tightening nut (6) abuts against the top end of the cap (35).

4. A soil sampling device according to claim 1, characterized in that: The outer wall of the cylinder (32) away from the entrance / exit window is provided with a discharge hole (36).

5. A soil sampling device according to claim 1, characterized in that: The disposable sampling tube (5) has V-shaped grooves (51) on both the left and right outer walls.

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