A soil sampling device

Abstract

This utility model belongs to the field of soil sampling technology, specifically relating to a soil sampling device. It includes a semi-cylindrical base, a pressure rod, a push rod, a connecting rod, and a ring cutter. A first groove is formed on the base, and the push rod is slidably mounted on the first groove. A circular push block is fixedly installed at the bottom end of the push rod. The pressure rod is hinged to the top of the base. One end of the connecting rod is hinged to the top of the push rod, and the other end is hinged to the middle of the pressure rod. An annular placement ring is formed at the bottom end of the base for placing the push block and the ring cutter. This invention solves the problems of traditional ring cutter sampling devices, which are time-consuming, labor-intensive, have low sampling efficiency, and are easily affected by sampling accuracy.

Description

Technical Field

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

[0002] In field ecological research and surveys, soil serves as the fundamental support for terrestrial ecosystems. Accurately obtaining its physical, chemical, and biological properties is crucial for revealing ecological processes and assessing the impacts of environmental change. Soil sampling, by collecting representative soil samples, provides fundamental data for analyzing soil nutrient cycling, such as the migration and transformation of carbon, nitrogen, and phosphorus, microbial community structure, pollutant distribution, and ecosystem function. It is a key link connecting macroscopic ecological phenomena with microscopic mechanisms. The ring sampling method is a commonly used soil sampling method, offering advantages such as simplicity, low cost, and adaptability. It uses a ring of known volume to cut soil samples, allowing for convenient calculation of parameters such as soil bulk density. Compared to other sampling methods, such as borehole sampling, ring sampling better preserves the original soil structure and reduces soil disturbance, thus finding widespread application in determining parameters such as soil bulk density and porosity.

[0003] Traditional ring sampler devices have the following problems during use: When pressing the ring into the soil, the operator needs to use a hammer to repeatedly strike the top of the handle, which is labor-intensive. Prolonged striking can also cause soreness in the researcher's arms, leading to a decrease in striking frequency and reduced sampling efficiency. Furthermore, it is difficult to ensure that the ring is pressed vertically into the soil, and the ring is prone to tilting, which may affect the accuracy of sampling.

[0004] In view of this, the inventor conducted in-depth research on the aforementioned deficiencies in the prior art, which led to the creation of this case. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a soil sampling device that solves the problems of traditional ring sampler devices being time-consuming, labor-intensive, and having low sampling efficiency.

[0006] This utility model solves the above-mentioned technical problems through the following technical means:

[0007] A soil sampling device is characterized by comprising a base, a pressure rod, a push rod, a connecting rod, and a ring cutter. The base has a first groove, the push rod is slidably mounted on the first groove, a circular push block is fixedly mounted at the bottom end of the push rod, the pressure rod is hinged to the top of the base, one end of the connecting rod is hinged to the top of the push rod, and the other end is hinged to the middle of the pressure rod. A ring-shaped placement ring is installed at the bottom of the base, the placement ring is matched with the push block, the ring cutter is placed inside the placement ring, and a hoe plate is fixedly mounted at the bottom of the base.

[0008] Based on the above technical solution, the present invention has made the following improvements:

[0009] Furthermore, a second groove is formed on the side wall of the ring placement ring. A traction hook is installed on the push block, located within the second groove, and matches the ring cutter. A slot is formed at the top of the push block to hold one end of the traction hook. The slot is larger than the end of the traction hook. Pressing down and rotating the pressure rod causes the push rod to move linearly downward along the first groove through the transmission of the connecting rod. The push block then pushes the ring cutter down into the ground. Since one end of the traction hook hooks onto the bottom of the ring cutter, the traction hook enters the ground along with the ring cutter. After sampling is completed, the pressure rod is pulled up. Under the transmission of the connecting rod, the push rod moves linearly upward along the first groove, and the push block moves upward accordingly. When the slot on the push block contacts the other end of the traction hook, it drives the traction hook to move upward together, thereby pulling the ring cutter out of the ground and removing the ring cutter. This structural design enables a two-way, labor-saving operation: pressing down the pressure rod to insert the cutter into the soil and pulling up the pressure rod to remove the cutter. It eliminates the need for the traditional method of digging and then pulling out the cutter, effectively reducing the operator's workload. It is labor-saving, efficient, convenient, and easy to use. The slot is larger than the end of the traction hook, facilitating contact between the push block and the traction hook when the push block moves upward, thereby moving the cutter and removing it from the ground.

[0010] Furthermore, the base is equipped with several ground nails at its bottom; this structural design is simple and practical. By setting up ground nails to assist in positioning the sampling location, it prevents the sampling process from moving, thereby improving the stability and accuracy of the sampling operation.

[0011] Furthermore, the hoe blade has a cutting edge on one side and serrations on the other; this structural design makes it suitable for the varied and complex terrain of field sampling, eliminating the need for researchers to carry additional digging tools, reducing equipment burden and improving the practicality of the device.

[0012] Furthermore, a threaded sleeve is connected to the bottom of the pressure rod via a threaded rotation. When the soil-digging function is needed, the threaded sleeve is rotated until it contacts the base surface, allowing the pressure rod to be gripped and the ground to be dug. When soil sampling is needed, the threaded sleeve is rotated to the top of the thread, allowing the pressure rod to be gripped and pressed down, which in turn moves the push rod and push block downwards, pushing the ring cutter into the ground for sampling. This structural design, which connects the pressure rod and the threaded sleeve via a threaded rotation, enables flexible switching and efficient utilization of functions. Through a simple threaded rotation operation, the system can quickly switch between soil-digging and sampling functions without disassembling or replacing parts, greatly improving work efficiency. This highly integrated design effectively enhances the portability and practicality of the equipment.

[0013] The beneficial effects of this utility model are as follows: The transmission structure formed by the pressure rod, connecting rod and push rod simplifies the operation process and completes efficient sampling. Compared with the traditional method of repeatedly striking the ground with a hammer to make the ring cutter cut into the ground, it significantly reduces the physical exertion of manual sampling and can also avoid tilting or deflection of the ring cutter during the cutting process, effectively improving sample integrity and detection accuracy. The integrated structure of the entire device reduces the size of the equipment, making it easy to carry in the field and improving the efficiency and practicality of soil sampling. Attached Figure Description

[0014] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0015] Figure 1 This is a schematic diagram of the structure of a soil sampling device according to an embodiment of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of a soil sampling device according to an embodiment of the present invention. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the longitudinal section of a soil sampling device according to an embodiment of the present invention;

[0018] Figure 4 yes Figure 3 An enlarged view of point A;

[0019] Among them, 1-base, 11-first slide groove, 12-placement ring, 121-second slide groove, 2-push rod, 21-push block, 211-slot, 3-pressure rod, 31-threaded sleeve, 4-ring cutter, 5-connecting rod, 6-traction hook, 7-ground nail, 8-hoe plate. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0021] like Figures 1 to 4As shown, a soil sampling device includes a base 1, a pressure rod 3, a push rod 2, a connecting rod 5, and a ring cutter 4. The base 1 has a first groove 11, on which the push rod 2 is slidably mounted. A circular push block 21 is fixedly installed at the bottom of the push rod 2. The pressure rod 3 is hinged to the top of the base 1. One end of the connecting rod 5 is hinged to the top of the push rod 2, and the other end is hinged to the middle of the pressure rod 3. A ring-shaped placement ring 12 is installed at the bottom of the base 1, matching the push block 21. The ring cutter 4 is placed inside the placement ring 12. A hoe plate 8 is fixedly installed at the bottom of the base 1. By fixing the hoe plate 8 at the bottom of the base 1, researchers can step on the surface of the hoe plate 8 and insert the soil nail 7 into the soil during sampling, making the entire device more stable and less prone to displacement, thus helping to ensure the stability and accuracy of the sampling operation. Pressing down the rotating pressure rod 3 causes the push rod 2 to move linearly downwards along the first sliding groove 11 via the transmission of the connecting rod 5. The push block 21 then pushes the ring cutter 4 downwards into the ground. Since one end of the traction hook 6 hooks onto the bottom of the ring cutter 4, the traction hook 6 enters the ground along with the ring cutter 4. After sampling is completed, the pressure rod 3 is pulled up. Under the transmission of the connecting rod 5, the push rod 2 moves linearly upwards along the first sliding groove 11, and the push block 21 moves upwards accordingly. When the slot 211 on the push block 21 contacts the other end of the traction hook 6, it drives the traction hook 6 upwards, thereby pulling the ring cutter 4 out of the ground and removing it.

[0022] Specifically, a second groove 121 is provided on the side wall of the ring 12. A traction hook 6 is installed on the push block 21, and the traction hook 6 is located in the second groove 121. The traction hook 6 matches the ring cutter 4. A slot 211 is provided at the top of the push block 21. The slot 211 is used to place one end of the traction hook 6. The slot 211 is larger than the end of the traction hook 6. Pressing down the rotating pressure rod 3, the push rod 2 moves linearly downward along the first groove 11 through the transmission of the connecting rod 5. The push block 21 pushes the ring cutter 4 down into the ground. Since one end of the traction hook 6 hooks the bottom of the ring cutter 4, the traction hook 6 enters the ground together with the ring cutter 4. After the sampling is completed, the pressure rod 3 is pulled up. Under the transmission of the connecting rod 5, the push rod 2 moves linearly upward along the first groove 11. The push block 21 moves up accordingly. When the slot 211 on the push block 21 contacts the other end of the traction hook 6, it drives the traction hook 6 to move upward together, thereby pulling the ring cutter 4 out of the ground and removing the ring cutter 4. This structural design enables a two-way, labor-saving operation: pressing down on the pressure rod 3 to insert the ring cutter 4 into the soil, and pulling up on the pressure rod 3 to remove the ring cutter 4. It eliminates the need for the traditional method of digging and then pulling out the ring cutter 4, effectively reducing the operator's workload. It is labor-saving, efficient, convenient, and easy to use. The slot 211 is larger than the end of the traction hook 6, facilitating contact between the push block 21 and the traction hook 6 when the push block 21 moves upward, thereby moving the ring cutter 4 and removing it from the ground.

[0023] Specifically, the base 1 has several ground nails 7 at its bottom; this structural design is simple and practical. By setting the ground nails 7 as an auxiliary device to position the sampling location, it prevents the sampling from moving during the sampling process, thereby improving the stability and accuracy of the sampling operation.

[0024] Specifically, the hoe plate 8 has a blade on one side and serrations on the other side; this structural design is suitable for the varied and complex terrain of field sampling, so that researchers do not need to carry additional digging tools, reducing equipment burden and improving the practicality of the device.

[0025] Specifically, the bottom of the pressure rod 3 is connected to a threaded sleeve 31 via a threaded rotation. When the soil-digging function is needed, the threaded sleeve 31 is rotated until it contacts the surface of the base 1, allowing the pressure rod 3 to be gripped and the ground to be dug. When soil sampling is needed, the threaded sleeve 31 is rotated to the top of the thread, allowing the pressure rod 3 to be gripped and pressed down, which in turn moves the push rod 2 and push block 21 downwards, pushing the ring cutter 4 into the ground for sampling. This structural design, which connects the pressure rod 3 and the threaded sleeve 31 via a threaded rotation, enables flexible switching and efficient utilization of functions. Through a simple threaded rotation operation, the two functions of soil digging and sampling can be quickly switched without disassembling or replacing parts, greatly improving work efficiency. This highly integrated design effectively enhances the portability and practicality of the equipment.

[0026] The method of using this utility model is as follows: First, rotate the threaded sleeve 31 until it contacts the surface of the base 1. Then, hold the pressure rod 3 and use the hoe plate 8 to dig the soil. After digging, insert the ring cutter 4 from the top of the placement ring 12. The bottom of the ring cutter 4 is hooked by the bottom of the traction hook 6. Then rotate the threaded sleeve 31 to the top of the thread. Then press down and rotate the pressure rod 3. Through the transmission of the connecting rod 5, the push rod 2 moves linearly downward along the first slide groove 11. The push block 21, which is fixedly connected to the push rod 2, pushes the ring cutter 4 down into the ground. Since one end of the traction hook 6 hooks the bottom of the ring cutter 4, the traction hook 6 enters the ground along with the ring cutter 4. After the sampling is completed, rotate the pressure rod 3 upward and pull it up. Under the transmission of the connecting rod 5, the push rod 2 moves linearly upward along the first slide groove 11, driving the push block 21 to move upward. When the slot 211 on the push block 21 contacts the other end of the traction hook 6, it drives the traction hook 6 to move upward together, thereby pulling the ring cutter 4 out of the ground. The ring cutter 4 can then be removed from the ground.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A soil sampling device, characterized in that: The device includes a base (1), a pressure rod (3), a push rod (2), a connecting rod (5), and a ring cutter (4). The base (1) has a first sliding groove (11). The push rod (2) is slidably installed on the first sliding groove (11). A circular push block (21) is fixedly installed at the bottom of the push rod (2). The pressure rod (3) is hinged to the top of the base (1). One end of the connecting rod (5) is hinged to the top of the push rod (2), and the other end is hinged to the middle of the pressure rod (3). A ring-shaped placement ring (12) is installed at the bottom of the base (1). The placement ring (12) is matched with the push block (21). The ring cutter (4) is placed inside the placement ring (12). A hoe plate (8) is fixedly installed at the bottom of the base (1).

2. The soil sampling device according to claim 1, characterized in that: The placement ring (12) has a second sliding groove (121) on its side wall. The push block (21) is equipped with a traction hook (6), which is located in the second sliding groove (121) and matches the ring cutter (4).

3. A soil sampling device according to claim 2, characterized in that: The base (1) has several ground nails (7) at its bottom.

4. A soil sampling device according to claim 3, characterized in that: The hoe plate (8) has a blade on one side and serrations on the other side.

5. A soil sampling device according to claim 4, characterized in that: The bottom of the pressure rod (3) is connected to a threaded sleeve (31) via a threaded rotation.

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