Soil sampling device

Abstract

The utility model discloses a soil sampling device which comprises a sampling barrel, an operating handle and a cut-off component, the bottom end of the sampling barrel is provided with a lead-in port, and the operating handle is fixedly connected to the top end of the sampling barrel. The cut-off assembly comprises a cut-off piece, a transmission piece and a cut-off handle, the cut-off piece is rotatably arranged at the bottom end of the sampling barrel, the rotation track of the cut-off piece is provided with a first position allowing soil to enter the guide-in opening and a second position for cutting off the soil at the guide-in opening, and the two ends of the transmission piece are in transmission connection with the cut-off piece and the cut-off handle correspondingly; and the cutting-off handle drives the cutting-off piece to be switched between the first position and the second position. The sampling barrel is inserted into the soil layer by pressing the operating handle, so that the soil enters the sampling barrel through the leading-in opening. And finally, the cut-off piece can be driven to rotate through the cut-off handle, so that the cut-off piece is switched from the first position to the second position, and the soil at the guide-in opening is cut off. The soil in the sampling barrel and the soil outside the sampling barrel are prevented from adhering to each other, so that the sampling barrel can take out a complete soil sample.

Description

Technical Field

[0001] The utility model relates to the field of soil detection, in particular to a soil sampling device. Background Art

[0002] Soil collection and analysis are of great significance, for example, in the study of agricultural production, soil pollution control, animal and plant research, etc. There are also many types of soil collection tools, and the most commonly used sampling tool is the soil drill.

[0003] The existing soil sampling device can be found in the patent application number CN201621085601.8. The soil sampling drill includes a tubular drill bit and a drill rod connected as one, and a handle fixed to the upper end of the drill rod. When taking soil samples, the handle is rotated by hand to get the soil stuck in the drill bit. The soil sampling can be completed by pulling the drill bit out of the soil layer. However, since the soil inside and outside the drill bit are adhered to each other, part of the soil inside the drill bit will be retained in the soil layer due to viscosity during the process of pulling the drill bit out of the soil layer, resulting in incomplete soil sampling.

[0004] Therefore, how to prevent the soil inside and outside the drill bit from sticking to each other is a technical problem that needs to be solved urgently. Utility Model Content

[0005] The utility model aims to overcome the above technical deficiencies, and proposes a soil sampling device to solve the technical problem of preventing soil inside and outside the drill bit from sticking to each other in the prior art.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a soil sampling device, which comprises:

[0008] The sampling tube has an introduction port at the bottom end;

[0009] An operating handle fixedly connected to the top of the sampling tube; and

[0010] A cut-off assembly comprises a cut-off piece, a transmission piece and a cut-off handle. The cut-off piece is rotatably mounted at the bottom end of the sampling tube, and has a first position on its rotation trajectory for allowing soil to enter the introduction port, and a second position for cutting off the soil at the introduction port. Both ends of the transmission piece are respectively connected to the cut-off piece and the cut-off handle, so that the cut-off handle drives the cut-off piece to switch between the first position and the second position.

[0011] In some embodiments, a mating port is formed in the side wall of the sampling cylinder, and the cutting member includes an arc rod. One end of the arc rod is rotatably installed in the sampling cylinder. When the cutting member is in the first position, the arc rod abuts against the inner wall of the sampling cylinder. When the cutting member is switched to the second position, the arc rod partially passes through the inner wall of the sampling cylinder through the mating port to cut off the soil at the inlet.

[0012] In some embodiments, a receiving groove is formed in the inner wall of the sampling cylinder. When the cutting member is in the first position, the arc rod is received in the receiving groove.

[0013] In some embodiments, the transmission member includes a transmission shaft. The transmission shaft is rotatably installed in the sampling cylinder, and both ends of the transmission shaft are respectively connected to the cutting handle and the rotating shaft of the arc rod.

[0014] In some embodiments, one side of the arc rod facing the mating port has a guiding wedge surface.

[0015] In some embodiments, the sampling cylinder is a stainless steel sampling cylinder.

[0016] In some embodiments, a plurality of ventilation holes are formed in the side wall of the sampling cylinder.

[0017] In some embodiments, the outer periphery of the sampling cylinder has a conical surface surrounding the inlet.

[0018] In some embodiments, the soil sampling device further includes a hammering seat. The hammering seat is installed at the top end of the sampling cylinder and is coaxially arranged with the sampling cylinder.

[0019] In some embodiments, the soil sampling device has two operating handles, and the two operating handles are respectively arranged on both sides of the hammering seat.

[0020] First, the sampling cylinder is placed vertically on the soil surface. Then, the operating handle is pressed to insert the sampling cylinder into the soil layer, so that the soil enters the sampling cylinder through the inlet. Finally, the cutting handle can be used to drive the cutting member to rotate, so that the cutting member is switched from the first position to the second position, thereby cutting off the soil at the inlet. With the above soil sampling device, the soil at the inlet can be cut off, avoiding the mutual adhesion of the soil in the sampling cylinder and the external soil, so that the sampling cylinder can take out a complete soil sample. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the soil sampling device provided by an embodiment of the present invention;

[0022] Figure 2 is a cross-sectional schematic diagram of the soil sampling device provided by an embodiment of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross section of an arc rod provided by an embodiment of the utility model;

[0024] Explanation of the reference numerals: sampling tube 100 , introduction port 110 , matching port 120 , receiving groove 130 , air vent 140 , conical surface 150 , operating handle 200 , truncation assembly 300 , truncation piece 310 , arc rod 311 , transmission piece 320 , transmission shaft 321 , truncation handle 330 , hammer seat 400 . DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] In order to solve the technical problem of how to prevent the soil inside and outside the soil sampling device from sticking to each other, the utility model provides a soil sampling device, which can cut off the soil inside and outside the soil sampling device to prevent the soil inside and outside the soil sampling device from sticking to each other.

[0027] It should be noted that the soil sampling device of the present invention is used for but not limited to soil pollution detection, etc. For the convenience of explanation, in the present invention, only the application of the soil sampling device to soil pollution detection is used as an example for explanation, and the principle of applying the soil sampling device to other types of equipment is essentially the same as the principle applied to soil pollution detection, which will not be repeated here.

[0028] See also Figure 1 , Figure 1 1 is a schematic diagram of the structure of a soil sampling device in an embodiment of the utility model, wherein the soil sampling device comprises a sampling barrel 100, an operating handle 200 and a cut-off assembly 300. An inlet port 110 is provided at the bottom of the sampling barrel 100, the operating handle 200 is fixedly connected to the top of the sampling barrel 100, the cut-off assembly 300 comprises a cut-off piece 310, a transmission piece 320 and a cut-off handle 330, the cut-off piece 310 is rotatably mounted at the bottom of the sampling barrel 100, and has a first position allowing soil to enter the inlet port 110 and a second position cutting off the soil at the inlet port 110 on its rotation trajectory, the two ends of the transmission piece 320 are respectively connected to the cut-off piece 310 and the cut-off handle 330, so that the cut-off handle 330 drives the cut-off piece 310 to switch between the first position and the second position.

[0029] In this embodiment, first, the sampling cylinder 100 is vertically placed on the soil surface. Subsequently, the operating handle 200 is pressed to insert the sampling cylinder 100 into the soil layer, so that the soil enters the sampling cylinder 100 through the inlet 110. Finally, the cutting handle 330 can be driven to drive the cutting member 310 to rotate, so that the cutting member 310 switches from the first position to the second position, thereby cutting off the soil at the inlet 110. By using the above soil sampling device, the soil at the inlet 110 can be cut off, avoiding the mutual adhesion of the soil in the sampling cylinder 100 and the external soil, so that the sampling cylinder 100 can take out a complete soil sample.

[0030] In some of these embodiments, a mating port 120 is provided on the side wall of the sampling cylinder 100. The cutting member 310 includes an arc rod 311. One end of the arc rod 311 is rotatably installed on the sampling cylinder 100. When the cutting member 310 is in the first position, the arc rod 311 fits against the inner wall of the sampling cylinder 100. When the cutting member 310 switches to the second position, the arc rod 311 partially passes through the inner wall of the sampling cylinder 100 through the mating port 120 to cut off the soil at the inlet 110.

[0031] In this embodiment, after the soil enters the sampling cylinder 100 through the inlet 110, the arc rod 311 can be driven to rotate, so that the arc rod 311 can fully cut off the soil at the inlet 110, avoiding the mutual adhesion of the soil inside and outside the sampling cylinder 100.

[0032] In some of these embodiments, a receiving groove 130 is provided on the inner wall of the sampling cylinder 100. When the cutting member 310 is in the first position, the arc rod 311 is received in the receiving groove 130.

[0033] In this embodiment, when the arc rod 311 is received in the receiving groove 130, the arc rod 311 can be prevented from obstructing the entry of soil into the sampling cylinder 100.

[0034] As long as the implementation manner of the transmission member 320 that can drive the arc rod 311 to rotate is feasible. In some of these embodiments, the transmission member 320 includes a transmission shaft 321. The transmission shaft 321 is rotatably installed on the sampling cylinder 100, and both ends of the transmission shaft 321 are respectively connected to the rotation shaft of the cutting handle 330 and the arc rod 311.

[0035] In this embodiment, the cutting handle 330 drives the transmission shaft 321 to rotate, and further rotating the transmission shaft 321 can drive the arc rod 311 to rotate.

[0036] In some of these embodiments, a guiding wedge surface 3111 is provided on the side of the arc rod 311 facing the mating port 120.

[0037] In this embodiment, the guiding wedge surface 3111 can play a guiding role to facilitate the separation of the soil by the arc rod 311.

[0038] In some of these embodiments, the sampling cylinder 100 is a stainless - steel sampling cylinder 100.

[0039] In this embodiment, the sampling cylinder 100 is a stainless - steel sampling cylinder 100, so that the sampling cylinder 100 has sufficient corrosion resistance.

[0040] In some of these embodiments, a number of air - permeable holes 140 are provided in the side wall of the sampling cylinder 100.

[0041] In this embodiment, the gas inside the sampling cylinder 100 can be led out of the sampling cylinder 100 through the air - permeable holes 140, preventing the gas retained inside the sampling cylinder 100 from hindering the entry of soil into the sampling cylinder 100.

[0042] In some of these embodiments, the outer periphery of the sampling cylinder 100 has a conical surface 150 surrounding the inlet 110.

[0043] In this embodiment, the conical surface 150 surrounding the inlet 110 helps to divide the soil, making it easier for the sampling cylinder 100 to be inserted into the soil.

[0044] In some of these embodiments, the soil sampling device further includes a hammering seat 400. The hammering seat 400 is installed at the top end of the sampling cylinder 100 and is coaxially arranged with the sampling cylinder 100.

[0045] In this embodiment, if the texture of the soil layer is relatively hard, it is difficult to insert the sampling cylinder 100 into the soil layer only by pressing the operation handle 200. The hammering seat 400 can be hammered with a hammer, so that the sampling cylinder 100 is gradually inserted into the soil layer.

[0046] In some of these embodiments, the soil sampling device has two operation handles 200, and the two operation handles 200 are arranged on both sides of the hammering seat 400.

[0047] In this embodiment, the operation handles 200 are arranged on both sides of the hammering seat 400, so that it is easier for the operator to stably hold the soil sampling device.

[0048] For a better understanding of the present utility model, the following will combine Figures 1 to 3 to describe the technical solution of the present utility model in detail:

[0049] First, the sampling cylinder 100 is vertically placed on the soil surface. Subsequently, the operating handle 200 is pressed to insert the sampling cylinder 100 into the soil layer. The hammer is used to strike the hammer seat 400, causing the sampling cylinder 100 to gradually penetrate into the soil layer. The soil enters the sampling cylinder 100 through the inlet 110. Finally, the cutting handle 330 can be driven to rotate the cutting member 310, causing the cutting member 310 to switch from the first position to the second position, thereby cutting off the soil at the inlet 110. Using the above soil sampling device, the soil at the inlet 110 can be cut off, preventing the soil inside the sampling cylinder 100 from sticking to the external soil, and enabling the sampling cylinder 100 to take out a complete soil sample.

[0050] The specific embodiments of the present invention described above do not limit the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A soil sampling device, characterized in that, Comprising: A sampling cylinder with an inlet opening at its bottom end; An operating handle fixedly connected to the top end of the sampling cylinder; and A cutting component, which includes a cutting piece, a transmission piece, and a cutting handle. The cutting piece is rotatably installed at the bottom end of the sampling cylinder, and its rotation trajectory has a first position allowing soil to enter the inlet opening, and a second position for cutting the soil at the inlet opening. The two ends of the transmission piece are respectively connected to the cutting piece and the cutting handle in a transmission manner, so that the cutting handle drives the cutting piece to switch between the first position and the second position.

2. The soil sampling device according to claim 1, wherein A fitting opening is provided on the side wall of the sampling cylinder. The cutting piece includes an arc rod. One end of the arc rod is rotatably installed on the sampling cylinder. When the cutting piece is in the first position, the arc rod fits against the inner wall of the sampling cylinder. When the cutting piece switches to the second position, the arc rod partially passes through the inner wall of the sampling cylinder through the fitting opening to cut off the soil at the inlet opening.

3. The soil sampling device according to claim 2, wherein, A receiving groove is provided on the inner wall of the sampling cylinder. When the cutting piece is in the first position, the arc rod is received in the receiving groove.

4. The soil sampling device according to claim 2, wherein The transmission piece includes a transmission shaft. The transmission shaft is rotatably installed on the sampling cylinder, and the two ends of the transmission shaft are respectively connected to the cutting handle and the rotating shaft of the arc rod.

5. The soil sampling device according to claim 2, wherein The side of the arc rod facing the fitting opening has a guiding wedge surface.

6. The soil sampling device according to claim 1, characterized in that, The sampling cylinder is a stainless steel sampling cylinder.

7. The soil sampling device according to claim 1, characterized in that, A number of ventilation holes are provided on the side wall of the sampling cylinder.

8. The soil sampling device according to claim 1, characterized in that, A conical surface surrounding the inlet opening is provided on the outer periphery of the sampling cylinder.

9. The soil sampling device according to claim 1, characterized in that, The soil sampling device further includes a hammering seat. The hammering seat is installed at the top end of the sampling cylinder and is coaxially arranged with the sampling cylinder.

10. The soil sampling device according to claim 9, characterized in that, The soil sampling device has two operating handles, and the two operating handles are respectively arranged on both sides of the hammering seat.

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