A coring and storage simultaneous sampler for sand soil sampling

Abstract

The utility model relates to sampling device technical field discloses a kind of for sand sampling sampling and storage synchronous sampler, including the sampling tube for vertically inserting sand sampling, the tubular sample bag for receiving sand sample, and the soil-breaking head for breaking sand and fixing tubular sample bag;Sampling tube is the hard pipe of upper and lower two ends opening, tubular sample bag is the tubular plastic bag of upper and lower two ends opening, and is worn in sampling tube, soil-breaking head is inserted tubular sample bag lower end with tubular sample bag inserted hard pipe section of sampling tube, soil-breaking head and sampling tube interference fit and tubular sample bag are clamped between sampling tube and soil-breaking head.In the utility model, by using the thought of similar sausage filling to improve sampler, sand sample is entered into tubular sample bag marked with depth mark while sampling sand, tubular sample bag is tied tightly after sampling, and internal sand sample is compacted to avoid its loose drop or mutual mixing, so that the depth and original structure when sampling are retained.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, and in particular to a simultaneous sampling and storage sampler for sand and soil sampling. Background Technology

[0002] Soil sampling and analysis is an essential step in modern agriculture. It is used to analyze the content of nutrients such as nitrogen, phosphorus, and potassium, as well as the level of organic matter in the soil, providing a basis for scientific fertilization and avoiding waste and pollution caused by over-fertilization. In sandy soils, it is also used to analyze irrigation effectiveness.

[0003] Due to its unique physical properties—coarse particles, extremely low cohesion, and poor structure—sand presents a significant challenge to sampling work. The most critical difficulty lies in: After sampling, the sand sample will become loose, making it difficult to determine the depth and original structure at the time of sampling.

[0004] For clayey soils, a soil sampler can be used to drive in and extract a relatively complete "columnar" sample (undisturbed sample), which can maintain its original layers and structure. However, sand particles have almost no cohesion, and when the soil sampler is pulled out, the sample is very easy to slip out of the sampler or collapse, and it is impossible to maintain its original state underground. Sand from different depths will mix together.

[0005] Without the original structure, it is impossible to accurately determine the precise depth and sequence of the sample within the original strata. Depth information is crucial for analyzing irrigation effectiveness in sandy soils because irrigation in sandy soils cannot achieve the full saturation of conventional irrigation methods; instead, drip irrigation is used, only wetting the soil near the crop roots. Therefore, when sampling and analyzing irrigation effectiveness, it is necessary to examine the soil wetting at different depths; if samples are mixed together, the purpose cannot be achieved.

[0006] A common alternative to this problem is to use tools like sampling spoons. These spoons can sample in segments by depth, taking only a short interval at a time, and immediately storing and recording the samples according to depth intervals after extraction, thus minimizing the mixing of soil samples from different depths. However, this means that multiple samplings are required to achieve the desired results when analyzing the soil. This is acceptable for shallow-rooted crops, but inefficient for deep-rooted crops.

[0007] Taking the application scenario of this utility model as an example, the application scenario of this utility model is an intercropping farm of tiger nuts and fragrant pears in Yuli County. It is used to analyze the irrigation effect of the two different crops during the intercropping process. The roots of fragrant pears are very deep, and it is not practical to use a sampling spoon to take samples when analyzing their irrigation effect. Utility Model Content

[0008] This invention provides a simultaneous sampling and storage sampler for sand and soil sampling.

[0009] The technical problem to be solved is that the sand samples become loose after sampling, making it difficult to determine the sampling depth and original structure.

[0010] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a sampling and storage simultaneous sampler for sand sampling, which is used to collect the sample into a tubular sample bag marked with depth while sampling sand, including a sampling tube for vertically inserting into the sand for sampling, a tubular sample bag for collecting the sand sample, and a soil breaking head for breaking the sand and fixing the tubular sample bag. The sampling tube is a rigid tube with openings at both the top and bottom. The tubular sample bag is a tubular plastic bag with openings at both the top and bottom and an outer diameter that matches the inner diameter of the sampling tube. It is inserted into the sampling tube. The soil breaking head is a rigid tube section that inserts into the sampling tube along with the tubular sample bag after being inserted into the lower end of the tubular sample bag. The soil breaking head is interference-fitted with the sampling tube and clamps the tubular sample bag between the sampling tube and the soil breaking head. The tubular sample bag has depth marks on its side for indicating the sample depth. When sampling is complete, the soil breaking head separates from the sampling tube, the tubular sample bag is pulled out of the sampling tube, and the bag body is tied tightly at both ends of the sand sample inside the bag.

[0011] Furthermore, the outer side of the sampling tube is provided with auxiliary scale lines along its length to indicate the depth of the sampling tube in the soil. The auxiliary scale lines are marked from top to bottom with the uppermost scale line as the zero scale line. Each auxiliary scale line has a marking hole for inserting a marker into the sampling tube. The depth marking is a point drawn on the tubular sample bag by inserting the tip of the marker into each marking hole after sampling is completed.

[0012] Furthermore, the zero mark is flush with the ground during the sampling process.

[0013] Furthermore, the upper end of the soil-breaking head is a variable-diameter tube for easy insertion into the sampling tube and to prevent the sand sample from being lost when the sampling tube is pulled out, and the lower end has serrations for assisting in breaking the sand.

[0014] Furthermore, the upper side of the sampling tube is anchored with a handle for assisting in applying force, and the handle and the sampling tube are combined into a T-shaped structure.

[0015] Furthermore, the sampling tube, the soil breaking head, and the handle are all made of rigid PVC pipe. The diameter of the handle is larger than that of the sampling tube, and the upper end of the sampling tube penetrates the handle and is glued in place. The lower end of the sampling tube is fitted with a reinforcing sleeve to prevent the soil breaking head from bursting the sampling tube.

[0016] Furthermore, the tubular sample bag is a rolled PE long strip straight bag. Before sampling, a section longer than the sum of the lengths of the sampling tube and the soil breaking head is cut and placed into the sampling tube.

[0017] Compared with the prior art, the present invention provides a simultaneous sampling and storage sampler for sand and soil sampling, which has the following advantages: In this invention, the sampler is improved by adopting a sausage-making approach. While the sand is being sampled, the sand sample is placed into a tubular sample bag marked with depth. After sampling, the tubular sample bag is tied tightly to compact the sand sample inside, preventing it from loosening or mixing. This preserves the depth and original structure at the time of sampling, thus providing a reliable sample for analyzing the irrigation effect of sand.

[0018] The soil-breaking head serves to open and fix the opening of the tubular sample bag, allowing the sand sample to be poured into the tubular sample bag along the soil-breaking head after the sampling tube is inserted into the sand. After sampling is completed, the soil-breaking head can be removed to take out the tubular sample bag. Attached Figure Description

[0019] Figure 1 This is an exploded view of the structure of a simultaneous sampling and storage sampler for sand and soil sampling according to the present invention. Figure 2 This is a schematic diagram of the structure of a tubular sample bag after sampling. In the diagram, 1-sampling tube, 2-soil breaking head, 3-tubular sample bag, 31-depth mark, 4-auxiliary scale line, 5-marking hole, 6-handle, 7-sand sample. Detailed Implementation

[0020] like Figure 1 As shown, a simultaneous sampling and storage sampler for sand sampling is used to collect samples into a tubular sample bag 3 marked with depth while sampling sand. It includes a sampling tube 1 for vertically inserting into the sand for sampling, a tubular sample bag 3 for collecting sand samples 7, and a soil breaking head 2 for breaking the sand and fixing the tubular sample bag 3. Sampling tube 1 is a rigid tube with openings at both ends. Tubular sample bag 3 is a tubular plastic bag with openings at both ends and is inserted into sampling tube 1. Soil breaking head 2 is a rigid tube section that is inserted into the lower end of tubular sample bag 3 and then inserted into sampling tube 1 with tubular sample bag 3. Soil breaking head 2 is interference-fitted with sampling tube 1 and clamps tubular sample bag 3 between sampling tube 1 and soil breaking head 2. The concept behind this invention is similar to making sausages. The tubular sample bag 3 is like a sausage casing, and the soil-breaking head 2 is used to open the opening of the tubular sample bag 3, allowing the sand sample 7 to be poured in. Here, the soil-breaking head 2 acts as a connector, and a length of 5-10 cm is generally sufficient. The reason for the interference fit is to clamp the opening of the sample bag and prevent it from slipping out.

[0021] like Figure 2As shown, the tubular sample bag 3 has a depth mark 31 on its side for marking the sample depth. When the sampling is completed, the soil breaking head 2 separates from the sampling tube 1, the tubular sample bag 3 is pulled out of the sampling tube 1, and the bag body is tied tightly at both ends of the sand sample 7 inside the bag.

[0022] Here, the tubular sample bag 3 is tied tightly, similar to tying a sausage, but only at both ends are allowed. The tying tools can be thin string, binding wire, or cable ties.

[0023] The outer side of the sampling tube 1 is provided with auxiliary scale lines 4 along the length direction to mark the depth of the sampling tube 1 in the soil. The auxiliary scale lines 4 are marked from top to bottom with the uppermost scale line as the zero scale line. Each auxiliary scale line 4 is provided with a marking hole 5 for inserting a marker into the sampling tube 1. The depth mark 31 is the point drawn on the tubular sample bag 3 by inserting the tip of the marker into each marking hole 5 after sampling is completed.

[0024] To ensure that the depth markings 31 on the tubular sample bag 3 accurately reflect the sampling depths at different locations on the sand sample 7, markings are required after sampling. Simultaneously, the zero mark is flush with the ground during sampling, so the uppermost depth marking 31 represents a sampling depth of 0 at that location, and the sampling depths at the lower locations can be determined by comparing them to the auxiliary scale line 4.

[0025] In this embodiment, the upper end of the soil-breaking head 2 is a variable-diameter tube for easy insertion into the sampling tube 1 and to prevent the sand sample 7 from being lost when the sampling tube 1 is pulled out, and the lower end has serrations for assisting in breaking the sand. The upper side of the sampling tube 1 is anchored with a handle 6 for assisting in applying force, and the handle 6 and the sampling tube 1 are combined into a T-shaped structure.

[0026] In this embodiment, the sampling tube 1, the soil breaking head 2, and the handle 6 are all rigid PVC (polyvinyl chloride) pipes, which facilitates processing. After all, sand is very soft, and steel pipes can be inserted into it without needing to be used.

[0027] The soil breaking head 2 and the sampling tube 1 are cut from the same tube. The reducing tube on the soil breaking head 2 is formed by heating the end and then squeezing to reduce the tube diameter, while the serrations are cut with scissors. The outer diameter of the smaller diameter end of the reducing tube is smaller than the inner diameter of the sampling tube 1. The handle 6 has a larger diameter than the sampling tube 1, so that the upper end of the sampling tube 1 can easily pass through the handle 6, and the upper end of the sampling tube 1 is glued and fixed after passing through the handle 6; the lower end of the sampling tube 1 is fitted with a reinforcing sleeve to prevent the soil breaking head 2 from bursting the sampling tube 1.

[0028] The reducing pipe at the top of the soil breaking head 2 has a constriction structure in the sampling pipe 1, so that the sand sample 7 is not easily lost after sampling.

[0029] Generally, the outer diameter of the smaller diameter end of the reducer should be at least two millimeters smaller than the inner diameter of the sampling tube 1 to ensure that the sand sample 7 is not easily lost after sampling. However, the inner diameter of the smaller diameter end of the reducer should not be too small, at least two centimeters, to ensure that it does not obstruct the entry of sand. If the soil breaking head 2 and the sampling tube 1 become loose after prolonged use, and there is a risk of loosening during sampling, they can be fixed with short pins or thumbtacks that penetrate the side walls of both.

[0030] In this embodiment, the tubular sample bag 3 is a rolled PE (polyethylene) strip bag. Before sampling, a section longer than the sum of the lengths of the sampling tube 1 and the soil breaking head 2 is cut and placed into the sampling tube 1. This makes it convenient to carry and avoids taking up too much backpack space by carrying a bunch of bags.

[0031] This utility model discloses a simultaneous sampling and storage sampler for sand and soil sampling, the method of using which includes the following steps: Step 1: Cut a PE strip straight bag longer than the sum of the lengths of sampling tube 1 and soil breaking head 2, and place it into sampling tube 1 to serve as tubular sample bag 3; Step 2: Insert the soil breaking head 2 into the lower end of the tubular sample bag 3, then insert it into the sampling tube 1 and plug it tightly so that the lower end of the tubular sample bag 3 is clamped. Step 3: Grasp handle 6 and insert sampling tube 1 vertically into the soil, making the zero mark of auxiliary scale line 4 flush with the ground; Step 4: Pull out the sampling tube 1, press down both ends of the tubular sample bag 3, and then insert the tip of the marker into each marking hole 5 to draw depth marks 31 on the tubular sample bag 3; Step 5: Pull out the soil head 2, pull out the tubular sample bag 3, and then tie the tubular sample bag 3 tightly to compact the sand sample 7 inside.

[0032] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A simultaneous sampling and storage sampler for sand and soil sampling, used to collect samples into a tubular sample bag (3) marked with depth while sampling sand and soil, characterized in that: It includes a sampling tube (1) for vertically inserting into the sand to take samples, a tubular sample bag (3) for collecting sand samples (7), and a soil breaking head (2) for breaking the sand and fixing the tubular sample bag (3). The sampling tube (1) is a rigid tube with openings at both ends. The tubular sample bag (3) is a tubular plastic bag with openings at both ends and an outer diameter that is the same as the inner diameter of the sampling tube (1), and is inserted into the sampling tube (1). The soil breaking head (2) is a rigid tube section that inserts into the sampling tube (1) with the tubular sample bag (3) after being inserted into the lower end of the tubular sample bag (3). The soil breaking head (2) is press-fitted with the sampling tube (1) and clamps the tubular sample bag (3) between the sampling tube (1) and the soil breaking head (2). The tubular sample bag (3) has a depth mark (31) on the side for marking the sample depth. When the sampling is completed, the soil breaking head (2) is separated from the sampling tube (1), the tubular sample bag (3) is pulled out of the sampling tube (1), and the bag body is tied tightly at both ends of the sand sample (7) inside the bag.

2. The simultaneous sampling and storage sampler for sand and soil sampling according to claim 1, characterized in that: The sampling tube (1) has auxiliary scale lines (4) along its length on the outside for marking the depth of the sampling tube (1) into the soil. The auxiliary scale lines (4) are marked from top to bottom with the uppermost scale line as the zero scale line. Each auxiliary scale line (4) has a marking hole (5) for inserting a marker into the sampling tube (1). The depth mark (31) is a point drawn on the tubular sample bag (3) by inserting the tip of the marker into each marking hole (5) after sampling.

3. A simultaneous sampling and storage sampler for sand and soil sampling according to claim 2, characterized in that: The zero mark is flush with the ground during the sampling process.

4. A simultaneous sampling and storage sampler for sand and soil sampling according to claim 1, characterized in that: The upper end of the soil breaking head (2) is a variable diameter tube for easy insertion into the sampling tube (1) and to prevent the sand sample (7) from being lost when the sampling tube (1) is pulled out, and the lower end has serrations for assisting in breaking the sand.

5. A simultaneous sampling and storage sampler for sand and soil sampling according to claim 1, characterized in that: The upper side of the sampling tube (1) is anchored with a handle (6) for assisting in force generation, and the handle (6) and the sampling tube (1) are combined into a T-shaped structure.

6. A simultaneous sampling and storage sampler for sand and soil sampling according to claim 5, characterized in that: The sampling tube (1), the soil breaking head (2), and the handle (6) are all PVC rigid pipes. The diameter of the handle (6) is larger than that of the sampling tube (1), and the upper end of the sampling tube (1) is glued and fixed after penetrating the handle (6). The lower end of the sampling tube (1) is fitted with a reinforcing sleeve to prevent the soil breaking head (2) from bursting the sampling tube (1).

7. A simultaneous sampling and storage sampler for sand and soil sampling according to claim 1, characterized in that: The tubular sample bag (3) is a rolled PE long strip straight bag. Before sampling, a section longer than the sum of the lengths of the sampling tube (1) and the soil breaking head (2) is cut and placed into the sampling tube (1).

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