Sampling device for soil detection

Abstract

The sampling device comprises a cylinder body, the bottom of the cylinder body is open, a spiral rotating shaft is rotatably connected in the cylinder body, and the top end of the spiral rotating shaft is connected with the bottom end of a screw rod penetrating through the top of the cylinder body; a surrounding edge is arranged on the periphery of the opening end of the bottom of the cylinder body, and a fixing base is rotationally connected to the surrounding edge. The screw rod is rotated to drive the spiral rotating shaft in the cylinder to rotate so as to collect soil, the spiral body can take out the soil in a longitudinal sliding mode when being separated from the soil, and the soil sampler is practical, convenient and fast and is widely suitable for sampling work of soil with different hardness, and the spiral rotating shaft has an upward supporting effect on the taken-out soil; the probability that the soft soil is separated and falls off is greatly reduced, and the sampling efficiency and the detection accuracy are improved.

Description

Technical Field

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

[0002] In the agricultural field, the quality of the soil in the planting area is often tested first, and then the vegetation to be planted is adapted. The entire testing process includes steps such as sampling, sample preparation, analysis methods, result characterization, data statistics and evaluation. Soil sampling is one of the pre-processing steps of soil testing, and its sampling method and equipment are particularly important.

[0003] The existing soil sampling method is to insert a cylindrical tube into the soil and then pull it out to take samples, but it is limited to soil that meets the hardness requirements. When faced with soft soil, the soil cannot be completely attached to the cylindrical tube after insertion, so there is a risk of soil falling during the process of pulling out the cylindrical tube, resulting in incomplete sampling and affecting the accuracy of sampling and detection. Utility Model Content

[0004] The utility model provides a sampling device for soil detection, aiming to solve the problem that the existing sampling device cannot meet the requirements of sampling soils of different hardness and hardness, thereby affecting the accuracy of sampling and detection.

[0005] To achieve its purpose, the utility model adopts the following technical solutions:

[0006] A soil sampling device includes a cylinder with an open bottom. A spiral rotating shaft is rotatably connected to the cylinder, and the top end of the spiral rotating shaft is connected to the bottom end of a screw rod that passes through the top of the cylinder. A peripheral edge is provided on the outer periphery of the open bottom end of the cylinder, and a fixed seat is rotatably connected to the peripheral edge.

[0007] Furthermore, the surrounding edge is circular.

[0008] Furthermore, the fixing seat includes a ring body and a base connected by screws.

[0009] Furthermore, the inner walls of the ring body and the base are provided with grooves adapted to the surrounding edge, and the surrounding edge is embedded in the grooves and rotates along the grooves.

[0010] Furthermore, a plurality of nail posts with pointed portions facing downwards are connected to the bottom of the base.

[0011] Furthermore, the bottom end of the spiral rotating shaft is connected with a pointed cone.

[0012] Furthermore, the length of the screw rod is greater than the length of the barrel.

[0013] Furthermore, a screw block is provided on the top of the cylinder, and the screw rod is threadedly connected to the screw block.

[0014] Furthermore, a first handle is connected to the outer periphery of the top of the cylinder.

[0015] Furthermore, the top end of the screw rod is connected to a second handle.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The sampling device provided by the utility model collects soil by rotating the screw rod to drive the spiral rotating shaft in the cylinder to rotate. When the spiral body is separated from the soil, the soil can be taken out by longitudinal sliding. The utility model is practical and convenient, and is widely applicable to the sampling work of soils with different softness and hardness. In addition, the spiral rotating shaft has an upward supporting effect on the taken soil, which greatly reduces the probability of soft soil falling off and improving the sampling efficiency and detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of the sampling device of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the sampling device of the present utility model;

[0020] In the figure: 1. spiral rotating shaft; 2. cylinder; 3. screw; 4. screw block; 5. fixing seat; 51. ring body; 52. base; 521. nail column; 6. surrounding edge; 11. pointed cone; 21. first handle; 31. second handle. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figure 1-2 As shown, the present invention is a soil sampling device comprising a cylindrical body 2 with an open bottom. A spiral shaft 1 is rotatably connected within the body 2. A pointed cone 11 is connected to the bottom end of the spiral shaft 1, which drills the soil and improves the drilling efficiency. The top end of the spiral shaft 1 is connected to the bottom end of a screw 3 that extends through the top of the body 2. The screw 3 is longer than the body 2. A screw block 4 is provided at the top of the body 2, with the screw 3 threadedly connected to the screw block 4. A first annular handle 21 is connected to the outer periphery of the top of the body 2, and a second handle 31 is connected to the top end of the screw 3. Both the first handle 21 and the second handle 31 are foldable handles. A circular rim 6 is provided around the outer periphery of the open bottom end of the body 2, to which a fixed base 5 is rotatably connected. The fixed base 5 comprises a ring 51 and a base 52 connected by screws. The inner walls of the ring 51 and base 52 are provided with grooves that mate with the rim 6. The rim 6 is embedded in the groove and rotates along the groove. Four nail posts 521 with their tips facing downwards are connected to the bottom of the base 52 .

[0023] When taking samples, the spiral rotating shaft 1 is completely stored in the cylinder 2. At this time, the lower end opening of the cylinder 2 is placed in contact with the ground, and the foot is stepped on the base 52 to fix the nail column 521 in the soil. The second handle 31 is held and the screw rod 3 is rotated. The screw rod 3 and the cylinder 2 rotate relative to each other, so that the spiral rotating shaft 1 can be exposed from the cylinder 2 and drilled into the soil. After drilling into a certain amount of soil, the cylinder 2 is rotated so that the cylinder 2 rotates relative to the fixed base 5 and the screw rod 3 at the same time, and the spiral rotating shaft 1 is pulled out vertically. At this time, the soil on the spiral rotating shaft 1 will not be detached due to rotation.

Claims

1. A soil sampling device, characterized in that: The invention comprises a cylinder (2), wherein the bottom of the cylinder (2) is open, a spiral rotating shaft (1) is rotatably connected inside the cylinder (2), and the top end of the spiral rotating shaft (1) is connected to the bottom end of a screw rod (3) passing through the top of the cylinder (2); a peripheral edge (6) is provided on the outer periphery of the bottom open end of the cylinder (2), and a fixed seat (5) is rotatably connected to the peripheral edge (6).

2. A soil sampling device for testing according to claim 1, characterized in that: The surrounding edge (6) is circular.

3. A soil sampling device according to claim 2, characterized in that: The fixing seat (5) comprises a ring body (51) and a base (52) connected by screws.

4. A soil sampling device according to claim 3, characterized in that: The inner walls of the ring body (51) and the base (52) are provided with grooves adapted to the surrounding edge (6), and the surrounding edge (6) is embedded in the grooves and rotates along the grooves.

5. A soil sampling device for testing according to claim 4, characterized in that: The bottom of the base (52) is connected to a plurality of nail posts (521) with their tips facing downwards.

6. A soil sampling device for testing according to claim 5, characterized in that: The bottom end of the spiral rotating shaft (1) is connected to a pointed cone (11).

7. A soil sampling device for testing according to claim 6, characterized in that: The length of the screw rod (3) is greater than the length of the cylinder (2).

8. A soil sampling device according to claim 7, characterized in that: A screw block (4) is provided on the top of the cylinder (2), and the screw rod (3) is threadedly connected to the screw block (4).

9. A soil sampling device according to any one of claims 1 to 8, characterized in that: A first handle (21) is connected to the outer periphery of the top of the cylinder (2).

10. A soil sampling device according to any one of claims 1 to 8, characterized in that: The top end of the screw rod (3) is connected to a second handle (31).

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