CN104048848A - Soil sampler - Google Patents

Abstract

The invention relates to a soil fetcher, which includes a main body and a soil fetching knife, the main body includes a cylinder and a base, protruding feet are symmetrically arranged on both sides of the lower end of the cylinder, screw holes are provided on the protruding feet, and the The base is also provided with a screw hole of the same size, and the cylinder body is fixedly connected with the base through the screw hole; the cylinder body is provided with a soil-borrowing knife with a matching size, and the upper end of the soil-borrowing knife is provided with The handle of the knife, the soil-taking knife includes a soil-taking knife with an edge and a soil-taking knife without a blade, and the soil-taking knife with an edge is located at the lower end of the soil-taking knife without a blade. The beneficial effects of the present invention are: simple structure, simple equipment operation, easy processing and manufacture, and convenient portability; smooth entry into the soil, eliminating the need to dig soil profiles, and obtaining undisturbed soil structures of different depths at one time without destroying the original structure of the soil, and at the same time Take a larger amount.

Description

a soil picker

technical field

The invention relates to the technical field of soil sampling and measurement, in particular to a soil fetching device.

Background technique

At present, in the field of soil sampling and measurement technology, whether the soil measurement results are accurate and reliable, and whether the key issues can be explained scientifically, the most important thing is the accuracy of sampling and sample processing, and the collection of soil samples is the key. Accuracy is directly related to the accuracy of the soil measurement and its results, and the key to conveniently and quickly obtaining deep undisturbed soil close to the natural structure is to use a more advanced soil fetcher.

my country is one of the countries with severe desertification. According to relevant survey results, the national desertification land area is 2.6237 million square kilometers, and the desertification land area is 1.7311 million square kilometers, accounting for 27.33% and 18.03% of the total land area respectively. There are a lot of field sampling tasks, and most of the field sampling is inconvenient in transportation and travels long distances. This requires our soil extractors not only to be able to accurately sample, but also to be easy to carry, easy to install and disassemble, and minimize the need for external resources, such as Need to use electricity or water to drive, etc., it is inconvenient to find water and take electrodes in the field, especially it is more difficult to take samples in desert sand.

And all there is certain problem in the soil fetcher in the prior art, for example just there is secondary storage in the soil fetcher in patent document CN102879222A, can not get the problem of undisturbed soil; And in the soil fetcher in patent document CN103389226A is the floor Drive the steel nail into the soil through the drill hole to fix the earth taker on the ground surface. When the soil is fetched, the handle is used to force the sampling tube downward to press the sampling tube into the soil. At the same time, the reaction force is easy to pull the steel nail out of the ground, which will affect The accuracy of the soil depth; and the earth borrower in the patent document CN103063467 also does not mention issues such as layering and undisturbed soil storage, and can only get undisturbed soil of one depth at a time, and the deeper soil needs to be replaced. It may cause the topsoil at the original soil extraction position to collapse, and the upper and lower layers of soil to mix; meanwhile, the structures of the soil extraction devices in the above three patent documents are relatively complicated and require high technical skills for operators.

Contents of the invention

The purpose of the present invention is to provide a kind of soil fetching device, to overcome the deficiency that current soil fetching device only obtains the undisturbed soil of a kind of depth once.

The purpose of the present invention is to realize through the following technical solutions:

A soil fetcher, comprising a main body and a soil fetching knife, the main body includes a cylinder and a base, protruding feet are symmetrically arranged on both sides of the lower end of the cylinder, screw holes are provided on the protruding feet, and on the base A screw hole of the same size is also provided, and the cylinder body is fixedly connected to the base through the screw hole; a soil borrowing knife with a matching size is provided in the cylinder body, and a handle is provided on the upper end of the soil borrowing knife. The soil-absorbing knife includes a soil-absorbing knife with an edge and a soil-absorbing knife without an edge, and the soil-absorbing knife with an edge is located at the lower end of the soil-absorbing knife without an edge.

Further, the cylinder body is a hollow cylinder with two ends open, a groove is provided on the cylinder body, and a scale is provided in the groove.

Further, the base is a thickened circular ring structure, including an outer circle and an inner circle, and the base is fixed on the soil to be tested by brazing.

Further, the knife handle includes a threaded buckle and a knocking column, the size of the threaded buckle matches the soil cutter without a blade, and the outer surface of the threaded buckle is provided with threads.

Further, the soil-borrowing knife is in the shape of a cylinder, and the upper end and the lower end of the soil-borrowing knife are respectively provided with matching upper and lower covers.

Further, the earth-borrowing knife is made of special steel.

The beneficial effects of the present invention are: simple structure, simple equipment operation, easy processing and manufacture, and convenient portability; smooth entry into the soil, eliminating the need to dig soil profiles, and obtaining undisturbed soil structures of different depths at one time without destroying the original structure of the soil, and at the same time Take a larger amount.

Description of drawings

The present invention will be described in further detail below according to the accompanying drawings.

Fig. 1 is the structural representation of a kind of soil fetcher described in the embodiment of the present invention;

Fig. 2 is a schematic structural view of a base of an earth-moving device according to an embodiment of the present invention;

Fig. 3 is a structural schematic diagram of a cylinder body of an earth-moving device described in an embodiment of the present invention;

Fig. 4 is a schematic diagram of an exploded structure of a soil-knife and upper and lower covers of a soil-borrower described in an embodiment of the present invention;

Fig. 5 is a schematic structural view of a handle of a soil remover according to an embodiment of the present invention.

In the picture:

1. Main body; 2. Base; 2.1. Screw hole; 3. Cylinder body; 3.1. Groove; 3.2. Scale; 3.3. Protruding foot; 4. Soil cutter with blade; 5. Soil cutter without blade; 6. Upper cover; 7. Knife handle; 7.1. Thread buckle; 7.2. Knocking column; 8. Soil to be tested; 9. Lower cover; 10. Steel drill.

Detailed ways

As shown in Figures 1-5, a soil fetcher according to the embodiment of the present invention includes a main body 1 and a soil fetching knife, the main body 1 includes a cylinder 3 and a base 2, and the lower end of the cylinder 3 is symmetrical on both sides A protruding foot 3.3 is provided, and a screw hole is provided on the protruding foot 3.3, and a screw hole 2.1 of the same size is also provided on the base 2, and the cylinder body 3 is fixed to the base 2 through the screw hole 2.1 by screws connected, and can be separated by adjusting the base 2 and the cylinder 3, which is convenient to replace the cylinder 3 of different heights to adapt to the sampling depth; It can ensure that the soil-borrowing knife is not easy to tilt after entering the soil, and the upper end of the soil-borrowing knife is provided with a handle 7, and the soil-borrowing knife includes a band-edge soil-borrowing knife 4 and a non-edge soil-borrowing knife 5, and the band-edge soil-borrowing knife 4 is located at the lower end of the soil extraction knife 5 without an edge, wherein the soil extraction knife 4 with an edge is convenient for digging into the soil, and the soil extraction knife 5 without an edge pushes the soil extraction knife 4 with an edge immediately behind the soil extraction knife 4 with an edge into the soil, and according to the depth of sampling, a plurality of soil-taking knives 5 without blades can be sent into the soil.

The cylinder 3 is a hollow cylinder with openings at both ends, and the cylinder 3 is provided with a groove 3.1, and the groove 3.1 is provided with a scale 3.2, through which the soil-borrowing knife can be conveniently observed. depth.

The base 2 is a thickened annular structure, including an outer circle and an inner circle, and the base 2 is fixed on the soil 8 to be tested by a steel drill 10, so that the base 2 and the soil 8 to be tested are not easy to occur. Horizontal movement ensures the efficiency of the soil fetching device.

The handle 7 includes a threaded buckle 7.1 and a knocking post 7.2. The threaded buckle 7.1 matches the size of the soil-borrowing knife 5 without a blade. The outer surface of the said threaded buckle 7.1 is provided with threads. , you can fine-tune the depth of the earth-borrowing knife into the soil, which is convenient to control the depth of the soil-borrowing knife cutting into the soil.

The soil-borrowing knife is in the shape of a cylinder, and the upper and lower ends of the soil-borrowing knife are respectively provided with a matching upper cover 6 and a lower cover 9, which is not only convenient for taking samples back to the laboratory for sample testing, but also ensures that The structure of the undisturbed soil will not be damaged during the secondary storage process; the infiltration, bulk density, moisture, field water holding capacity, etc. of the undisturbed soil can be measured to ensure the accuracy of the experimental data.

The soil-borrowing knife is made of special steel material, which can ensure that the soil-borrowing knife has hammer resistance and good flexibility, and is not easy to deform, which improves the service life of the soil-borrowing tool.

During specific use, the ^effective volume of the main body 1 of the soil fetcher is π×372mm×73mm, the effective soil volume of each layer is π×352mm×50mm, and the outer diameter of the base ² of the soil fetcher is 150mm× The height is 20mm, and the diameter of the inner circle is 82mm.

Utilize described earth taker, can realize stratification and take soil sample without digging soil profile, comprise the following steps when taking soil sample:

Step 1: Fix the main body 1 of the soil fetcher on the selected sample point of the soil 8 to be tested through the base 2 .

Step 2: First put the bladed soil extraction knife 4 into the cylinder body 3, then put the handle 7 on the upper end of the bladed soil extraction knife 4, and hammer the bladed soil extraction knife 4 with a heavy hammer When the percussion column 7.2 on the top of the belt blade soil-taking knife 4 is sent into the soil for about 4/5, the handle 7 is taken out; , and then put the handle 7 on the upper end of the soil-borrowing knife 5 without a blade, knock the post 7.2 by hammering, put the soil-borrowing knife 4 with a blade into the soil, and continue hammering the soil-borrowing knife 5 without a blade until it enters the soil Continue to increase the soil-borrowing knife 5 without edge equally, and hammer into the soil, and the penetration depth of the soil-borrowing knife can be seen by observing the scale 3.2, until reaching the sampling depth of this test; the maximum sampling depth depends on the hammering into the soil The number of soil-taking knives in the soil, the general ecological field soil sampling depth is 1m.

Step 3: Remove the main body 1 of the soil fetcher on the surface of the soil 8 to be tested, dig the soil with a shovel or other tools, take out the soil fetchers at different depths in the soil one by one from top to bottom, and cover the upper cover 6 and Lower cover 9, then the soil sample is brought back to the laboratory for sample testing.

Thereby described earth taker realizes can not need digging soil section and can take deep undisturbed soil sample layer by layer, and described earth taker can take the soil sample of various lands such as sandy land, farmland, grassland, can take different layers according to experiment requirement. thick soil samples, and take a large amount.

The present invention is not limited to the above-mentioned best implementation mode, anyone can draw other various forms of products under the inspiration of the present invention, but no matter make any changes in its shape or structure, all those with the same or similar features as the present application Approximate technical solutions all fall within the protection scope of the present invention.

Claims (5)

1. A soil borrower, comprising a main body (1) and a soil borrowing knife, characterized in that: the main body (1) includes a cylinder (3) and a base (2), and both sides of the lower end of the cylinder (3) Protruding feet (3.3) are symmetrically provided, and screw holes are provided on the protruding feet (3.3), and screw holes (2.1) of the same size are also provided on the base (2), and the cylinder body (3) passes through The screw passes through the screw hole (2.1) and is fixedly connected with the base (2); the cylinder body (3) is provided with a soil-borrowing knife with a matching size, and the upper end of the soil-borrowing knife is provided with a handle (7), The soil-absorbing knife includes a soil-absorbing knife with an edge (4) and a soil-absorbing knife without an edge (5), and the soil-absorbing knife with an edge (4) is located at the lower end of the soil-absorbing knife without an edge (5). 2. A soil fetcher according to claim 1, characterized in that: the cylinder (3) is a hollow cylinder with openings at both ends, and a groove (3.1) is provided on the cylinder (3), A scale (3.2) is provided inside the groove (3.1). 3. The soil fetcher according to claim 2, characterized in that: the base (2) is a thickened circular ring structure, including an outer circle and an inner circle, and the base (2) is made of steel The brazing (10) is fixed on the soil (8) to be tested. 4. The soil fetcher according to claim 3, characterized in that: the handle (7) includes a threaded buckle (7.1) and a knocking column (7.2), and the threaded buckle (7.1) is connected to the The size of the soil cutter (5) matches, and the outer surface of the threaded buckle (7.1) is provided with threads. 5. A soil-borrower according to claim 4, characterized in that: the soil-borrower is in the shape of a cylinder, and the upper and lower ends of the soil-borrower are respectively provided with a matching upper cover (6) and a lower cover (9).