A soil sampling device

Abstract

The utility model discloses a kind of soil sampling devices, it is related to soil sampling technical field, including ramming rod, guide rod and sampling head, guide rod one end connects sampling head, the other end connects ramming rod;The inherent counterweight of ramming rod's outer wall bottom end, guide rod outer wall is provided with bearing seat, ramming rod can be pulled up and down along the axial direction of guide rod, and then drive counterweight to and fro ramming bearing seat, provide ramming force for sampling head embedding deep soil layer;One longitudinal edge side wall of earth inlet gap is provided with soil cutting bevel, another longitudinal edge side wall bends and extends in storage sample space.The utility model provides instantaneous increasing ramming force for using head, to quickly embed deep soil layer, rotate sampling head, soil cutting bevel is cut around and collected to deep soil layer, with sampling process constantly advancing, the amount of soil in storage soil space gradually accumulates, soil is under its own gravity and the friction and extrusion effect between each other, realize natural compaction process, avoid soil falling when sampling head is pulled out.

Description

Technical Field

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

[0002] Soil sampling is a crucial step in soil research, environmental monitoring, agricultural production, and ecological assessment. Its purpose is to obtain representative soil samples to analyze the physical, chemical, and biological properties of the soil. In agricultural soil nutrient analysis, sampling depth directly affects the accuracy and applicability of the results. The sampling depth for agricultural soil nutrient analysis needs to be determined comprehensively based on crop type, soil characteristics, and analytical objectives. The conventional sampling depth is 0-20 cm, while deep-rooted crops or orchards require stratified sampling to a depth of 0-40 cm or even deeper.

[0003] Typically, orchard soil sampling only collects the top 0-10cm of soil, failing to test the 20-40cm soil layer for calcium and magnesium deficiency, which easily leads to a high incidence of bitter pit in the fruit. In order to conduct comprehensive sampling and testing, the sampling head needs to be embedded in the deep soil layer for sampling. However, deep soil (such as arid areas and compacted soil layers) has low water content and dense particles, resulting in high resistance when the sampling head is embedded. The deeper the soil, the greater the resistance will be, which is time-consuming, labor-intensive, and has low sampling efficiency. At the same time, the physical exertion of the sampling personnel is also relatively high. Utility Model Content

[0004] The purpose of this invention is to provide a soil sampling device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a soil sampling device, including a tamping rod, a guide rod and a sampling head, wherein one end of the guide rod is connected to the sampling head and the other end is connected to the tamping rod;

[0006] The bottom of the outer wall of the tamping rod has a counterweight block, and the outer wall of the guide rod is provided with a load-bearing seat. The tamping rod can be pulled up and down along the axial direction of the guide rod, thereby driving the counterweight block to tumble the load-bearing seat back and forth, providing tamping force for the sampling head to be embedded in the deep soil layer.

[0007] The sampling head has a sample storage space at its bottom end and a soil inlet notch on its radial sidewall. One longitudinal sidewall of the soil inlet notch has a soil cutting slope, and the other longitudinal sidewall bends and extends into the sample storage space.

[0008] In a further embodiment, the bottom end of the tamping rod is provided with a pull-out groove, and the pull-out groove is provided with a narrowing opening at the opening of the groove. One end of the guide rod slides through the narrowing opening into the pull-out groove and is fixedly provided with an enlarged end that slides and fits along the inner wall of the pull-out groove. The enlarged end is a rectangular structure.

[0009] In a further embodiment, the sampling head has a pull hole at its upper end, and the other end of the guide rod slides through the pull hole into the soil storage space, and is provided with an enlarged end two.

[0010] In a further embodiment, the sampling head is fixedly welded with connecting seats on both sides of the upper opening of the extraction hole. Both connecting seats are provided with threaded holes that penetrate the side walls on both sides. The guide rod is provided with a radial hole at one end near the second enlarged end. A fastening pin is threaded between the two threaded holes and slides through the radial hole.

[0011] In a further embodiment, the bearing seat has an axially threaded hole that is threaded to the outer wall of the guide rod, and the upper end face of the bearing seat is a force-bearing plane that receives the impact of the counterweight.

[0012] In a further embodiment, the bottom end of the sampling head is provided with a beveled surface, and the end sidewall of the beveled surface gradually becomes thinner.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention relates to a soil sampling device that provides an instantaneous increase in impact force to the sampling head, ensuring that the sampling head quickly embeds into the preset deep soil layer and reducing the physical exertion of sampling personnel. By rotating the sampling head, the cutting slope cuts the target deep soil layer and enters the soil storage space. As the sampling process continues, the amount of soil in the storage space gradually accumulates. During this process, the soil undergoes a natural compaction process under its own weight, as well as friction and compression between soil particles. This compaction effect effectively solves the problem of soil easily falling off when the sampling head is removed in traditional sampling devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram showing the disassembled guide rod and sampling head according to an embodiment of the present invention;

[0017] Figure 3 This is an exploded view of the assembly structure of the tamping rod and guide rod according to an embodiment of the present utility model;

[0018] Figure 4 This is a bottom view of the sampling head according to an embodiment of the present invention.

[0019] In the diagram: 1. Ramming rod; 2. Counterweight; 3. Guide rod; 4. Load-bearing seat; 5. Sampling head; 51. Soil inlet notch; 6. Fastening pin; 7. Connecting seat. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This embodiment provides a soil sampling device, such as... Figure 1 As shown, the device includes a tamping rod 1, a guide rod 3, and a sampling head 5. One end of the guide rod 3 is connected to the sampling head 5, and the other end is connected to the tamping rod 1. The guide rod 3 not only connects the tamping rod 1 and the sampling head 5, but also guides the pulling motion of the tamping rod 1. Details are as follows:

[0022] like Figure 1 and Figure 3 As shown, the bottom end of the tamping rod 1 is provided with a pull-out groove. The pull-out groove is provided with a narrowing opening at the opening. One end of the guide rod 3 slides through the narrowing opening and enters the pull-out groove. An enlarged end is fixedly provided and slides along the inner wall of the pull-out groove. The enlarged end is a rectangular structure, which allows the tamping rod 1 to be stably pulled up and down along the axial direction of the guide rod 3, ensuring the accuracy and stability of the tamping action.

[0023] At the same time, such as Figure 2 As shown, a pull hole is provided at the upper end of the sampling head 5. The other end of the guide rod 3 slides through the pull hole into the soil storage space and is provided with an enlarged end. Connecting seats 7 are fixedly welded to the upper end face of the sampling head 5 on both sides of the upper opening of the pull hole. Both connecting seats 7 are provided with threaded holes that penetrate the side walls on both sides. A radial hole is provided at the end of the guide rod 3 near the enlarged end. The radial hole and the two threaded holes are coaxially distributed. A fastening pin 6 is threaded between the two threaded holes, and the fastening pin 6 slides through the radial hole. In this way, the sampling head 5 and the guide rod 3 can be fixedly assembled together.

[0024] The entire sampling device has a tamping function: such as Figure 1As shown, the bottom of the outer wall of the tamping rod 1 has a counterweight 2, and the outer wall of the guide rod 3 is equipped with a bearing seat 4. Pulling the tamping rod 1 up and down along the axial direction of the guide rod 3 causes the counterweight 2 to reciprocate and strike the bearing seat 4, providing an instantaneous increase in tamping force for the sampling head 5, thus providing tamping force for the sampling head 5 to embed into deep soil layers. The upper surface of the bearing seat 4 is the force-bearing plane that receives the impact of the counterweight 2. During tamping, the upper surface of the bearing seat 4 bears the impact force of the counterweight 2 and transmits the impact force to the sampling head 5, ensuring that the sampling head 5 quickly embeds into the preset deep soil layer and reduces the physical exertion of the sampling personnel. To further reduce the resistance of the sampling head 5 in embedding into the soil, a beveled surface is provided at the bottom of the sampling head 5, and the end sidewall of the beveled surface gradually thins. The thinning beveled surface minimizes the resistance of the sampling head 5 embedding into deep soil layers, making it easier for it to penetrate deep soil layers.

[0025] Here, a threaded hole is provided axially on the bearing seat 4 to engage with the threaded outer wall of the guide rod 3. Through the threaded connection, the position of the bearing seat 4 on the guide rod 3 can be easily adjusted, thereby adjusting the relative height of the counterweight 2 impacting the bearing seat 4 according to the required compaction height, that is, adjusting the compaction force to adapt to the sampling needs of soils with different hardness.

[0026] This method eliminates the need for personnel to manually press the sampling head 5 into the soil with significant force, thereby significantly reducing physical exertion and improving the comfort and sustainability of the sampling work. Because the compaction force overcomes the resistance of deep soil layers, the sampling head 5 quickly penetrates deep soil layers, greatly shortening the sampling time. Compared to traditional sampling methods, this sampling device can complete deep soil sampling in a shorter time, improving sampling efficiency and making it particularly suitable for large-area soil sampling.

[0027] The entire sampling device has sampling capabilities: such as Figure 1 and Figure 4 As shown, a sample storage space is provided at the bottom of the sampling head 5. A soil inlet 51 is provided on the radial side wall of the sampling head 5. By rotating the tamping rod 1, the sampling head 5 can be rotated synchronously through the guide rod 3. Here, one longitudinal side wall of the soil inlet 51 is provided with a cutting slope, and the other longitudinal side wall bends and extends into the sample storage space, so that the cutting slope of the sampling head 5 embedded in the deep soil layer circumferentially cuts the soil of the target deep soil layer. At the same time, the bending and extending longitudinal side wall, this special design helps to guide the soil into the soil storage space more effectively during the sampling process, and facilitates the circumferentially cut soil to enter the soil storage space.

[0028] The entire sampling device has a soil compaction function: as the sampling process continues, the amount of soil in the storage space gradually accumulates. During this process, the soil achieves a natural compaction process under its own weight and the friction and compression between each other. This compaction effect can effectively solve the problem of soil falling off when the sampling head is removed in traditional sampling devices.

[0029] The special design of the inclined surface at the bottom of the sampling head 5 and the soil inlet 51, along with the natural compaction process of the soil within the storage space, ensures that the collected soil samples are representative and complete. The inclined surface effectively cuts the soil, reducing damage to the soil structure during sampling; the structure of the soil inlet 51 helps to accurately collect soil from the target soil layer; and the natural compaction of the soil prevents soil from falling off when it is removed from the sampling head 5, ensuring the stability and reliability of the sample quality.

[0030] After sampling is complete, lift the tamping rod 1 upwards, which will simultaneously detach it from the deep soil layer along with the guide rod 3 and the sampling head 5. Then, rotate the fastening pin 6 to disengage it from the threaded hole of the connecting seat 7 and the radial hole of the guide rod 3. Hold the sampling head 5 upright with it facing downwards and press down on the tamping rod 1. This will push the enlarged end of the guide rod 3 downwards along the soil storage space, thus helping to push the sampled soil out of the storage space. At this point, a single sampling operation is complete.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A soil sampling device, characterized in that, include: The tamping rod (1), the guide rod (3) and the sampling head (5) are provided. One end of the guide rod (3) is connected to the sampling head (5) and the other end is connected to the tamping rod (1). The bottom of the outer wall of the tamping rod (1) has a counterweight block (2), and the outer wall of the guide rod (3) is provided with a load-bearing seat (4). The tamping rod (1) can be pulled up and down along the axial direction of the guide rod (3), thereby driving the counterweight block (2) to tumble the load-bearing seat (4) back and forth, providing tamping force for the sampling head (5) to be embedded in the deep soil layer. The sampling head (5) has a sample storage space at its bottom end. The sampling head (5) has a soil inlet (51) on its radial sidewall. One longitudinal sidewall of the soil inlet (51) has a soil cutting slope, and the other longitudinal sidewall bends and extends into the sample storage space.

2. The soil sampling device according to claim 1, characterized in that, The bottom end of the tamping rod (1) is provided with a pull-out groove. The pull-out groove is provided with a narrowing opening at the opening of the groove. One end of the guide rod (3) slides through the narrowing opening into the pull-out groove and is fixedly provided with an enlarged end that slides along the inner wall of the pull-out groove. The enlarged end is a rectangular structure.

3. The soil sampling device according to claim 1, characterized in that, The sampling head (5) has a pull hole at the upper end, and the other end of the guide rod (3) slides through the pull hole into the soil storage space and is provided with an enlarged end.

4. The soil sampling device according to claim 3, characterized in that, The sampling head (5) is fixedly welded with connecting seats (7) located on both sides of the upper opening of the extraction hole. Both connecting seats (7) are provided with threaded holes that penetrate the side walls on both sides. The guide rod (3) is provided with a radial hole at one end near the second enlarged end. A fastening pin (6) is threaded between the two threaded holes, and the fastening pin (6) slides through the radial hole.

5. The soil sampling device according to claim 1, characterized in that, The bearing seat (4) has a threaded hole that is threaded to the outer wall of the guide rod (3) in the axial direction. The upper end surface of the bearing seat (4) is the force plane that receives the impact of the counterweight (2).

6. The soil sampling device according to claim 1, characterized in that, The bottom end of the sampling head (5) is provided with a beveled surface, and the end sidewall of the beveled surface gradually becomes thinner.

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