Soil sampling device

Abstract

The utility model adopts the following technical scheme that the soil sampling device comprises a sampling barrel with an axial direction and a radial direction, a mounting cavity is formed in the axial direction of the sampling barrel, a plurality of sampling ports are formed in the circumferential surface of the sampling barrel at intervals along the axial direction, and each sampling port is communicated with the mounting cavity along the radial direction; the multiple collecting assemblies are arranged at the multiple sampling openings in a one-to-one correspondence mode, and each collecting assembly comprises a driving block, a collecting barrel and a connecting rod, the driving block and the collecting barrel are arranged in a spaced mode, and the connecting rod is movably connected with the driving block and the collecting barrel; the driving block and the collecting barrel are respectively arranged in the mounting cavity and the sampling opening along the axial direction and the radial direction; a first hinge point and a second hinge point are respectively formed at the joint of the connecting rod and the driving block as well as the joint of the connecting rod and the collecting barrel. The soil sampling device disclosed by the utility model solves the technical problems of low applicability and low sampling precision of a soil sampling device in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of soil remediation, and particularly relates to a soil sampling device. Background Art

[0002] Land is a precious natural resource on which we depend for survival. The quality of soil directly affects the quality of our life and health. Therefore, it is crucial to protect the quality of soil in the ecological environment. To understand the pollution situation of soil, we need a sampler to sample the soil. When sampling the soil in the same area, it is usually necessary to sample the soil at different depths to improve the accuracy of soil sampling and analysis in this area. When the existing sampling devices are in use, they only sample at the same depth separately. After repeatedly taking out the sampled soil, the sampling device needs to be inserted into the soil at different depths again for sampling work. During the process of reciprocating insertion, the sampling device cannot ensure that it completely coincides with the soil sampling area of the previous sampling, which not only affects the sampling accuracy but also wastes manpower. Summary of the Utility Model

[0003] Aiming at the deficiencies in the prior art, the utility model provides a soil sampling device, which solves the technical problems of low applicability and low sampling accuracy of the existing soil sampling devices.

[0004] According to the embodiments of the utility model, the following technical solutions are adopted:

[0005] A soil sampling device includes: a sampling cylinder having an axial direction and a radial direction. An installation cavity is provided in the axial direction of the sampling cylinder, and a plurality of sampling ports are arranged at intervals along the axial direction on its peripheral surface. Each sampling port is connected to the installation cavity in the radial direction.

[0006] A plurality of collection components are respectively arranged at the plurality of sampling ports. Each collection component includes a driving block and a collection cylinder arranged at intervals, and a connecting rod movably connecting the driving block and the collection cylinder. The driving block and the collection cylinder are respectively arranged in the installation cavity and the sampling port in the axial direction and the radial direction. The connection points of the connecting rod with the driving block and the collection cylinder are respectively configured as a first hinge point and a second hinge point, so as to push the driving block under the action of an external force, and the connecting rod drives the collection cylinder to extend into or out of the sampling port.

[0007] Preferably, a first guiding groove is provided in the axial direction of the installation cavity, and the driving block is slidably arranged in the first guiding groove.

[0008] Preferably, the mounting cavity is provided with a plurality of second guide grooves at intervals along the axial direction, and the plurality of second guide grooves are arranged in one-to-one correspondence with the plurality of collecting cylinders. Each of the second guide grooves is formed with oppositely arranged first and last ends along the radial direction, and the first end of the second guide groove is suspended in the mounting cavity, and the end thereof extends to the sampling port.

[0009] Preferably, the collecting cylinder is provided with a protrusion for slidingly extending into the corresponding second guide groove.

[0010] Preferably, the driving block and the sampling cylinder are both provided with lifting ears, and the connecting rod is hinged to the corresponding lifting ears to form the first hinge point and the second hinge point.

[0011] Preferably, the mounting cavity is provided with a driving rod along the axial direction, and the driving rod passes through the plurality of driving blocks in sequence.

[0012] Preferably, the driving rod is rotatably disposed in the mounting cavity and is threadably engaged with the driving block.

[0013] Preferably, the sampling tube has a cutting edge at one end facing away from the connecting rod.

[0014] Preferably, the bottom of the sampling cylinder is a conical structure.

[0015] Compared with the existing technology, the utility model has the following beneficial effects: when external force acts on the driving block, it will move along the axial direction of the installation cavity, and be connected to the first hinge point and the second hinge point through the connecting rod, driving the collecting tube to move in the radial direction. When the collecting tube extends out of the sampling port, it can be inserted into the soil to collect samples; when the collecting tube retracts into the sampling port, the sample is protected in the collecting tube to prevent contamination or loss. Multiple collecting tubes are spaced apart in the radial direction, and can sample soil at different depths in the same area at the same time, thereby improving sampling accuracy and saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 sectional view of

[0018] Figure 3 It is a structural diagram of the collecting component in an embodiment of the present utility model.

[0019] In the above drawings: 1. Sampling tube; 2. Mounting cavity; 201. First guide groove; 202. Second guide groove; 3. Sampling port; 4. Drive block; 5. Collecting tube; 501. Protrusion; 502. Cutting edge; 6. Connecting rod; 7. Lifting ear; 8. First hinge point; 9. Second hinge point; 10. Drive rod. Detailed implementation manners

[0020] In order to make the objectives, technical solutions and beneficial effects of the present utility model clearer and more understandable, the technical solutions in the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] See Figures 1 to 3 , an embodiment of the present utility model provides a soil sampling device, including: a sampling cylinder 1 having an axial direction and a radial direction, an installation cavity 2 is provided in the axial direction of the sampling cylinder 1, and a plurality of sampling ports 3 are provided at intervals along the axial direction on its circumferential surface, and each sampling port 3 is connected to the installation cavity 2 in the radial direction;

[0022] A plurality of collection components are respectively provided at a plurality of the sampling ports 3. Each collection component includes a driving block 4 and a collection cylinder 5 arranged at intervals, and a connecting rod 6 movably connecting the driving block 4 and the collection cylinder 5. The driving block 4 and the collection cylinder 5 are respectively arranged in the installation cavity 2 and the sampling port 3 in the axial direction and the radial direction. The connection points of the connecting rod 6 with the driving block 4 and the collection cylinder 5 are respectively configured as a first hinge point 8 and a second hinge point 9, so that under the action of an external force, when the driving block 4 is pushed, the connecting rod 6 drives the collection cylinder 5 to extend into or out of the sampling port 3.

[0023] In this embodiment, the sampling cylinder 1 has an axial direction and a radial direction. The axial direction refers to the length direction of the sampling cylinder 1, and the radial direction refers to the radius direction of the sampling cylinder 1. An installation cavity 2 is provided in the axial direction of the sampling cylinder 1. On the circumferential surface of the sampling cylinder 1, a plurality of sampling ports 3 are arranged at intervals along the axial direction. The sampling ports 3 are connected to the installation cavity 2 in the radial direction. A collection component is provided at each sampling port 3. The collection component includes a driving block 4 arranged in the installation cavity 2 along the axial direction, a collection cylinder 5 slidably arranged in the sampling port 3 along the radial direction, and a connecting rod 6 for connecting the two. The connecting rod 6 and the driving block 4 are configured with a first hinge point 8, and the connecting rod 6 and the collection cylinder 5 are configured with a second hinge point 9. Under the action of an external force, the driving block 4 is pushed, driving the connecting rod 6 to drive the collection cylinder 5 through the first hinge point 8 and the second hinge point 9, so that the collection cylinder 5 can extend into (the included angle between the first hinge point 8 and the second hinge point 9 becomes smaller) or out of (the included angle between the first hinge point 8 and the second hinge point 9 becomes larger) the sampling port 3. When the collection cylinder 5 extends out of the sampling port 3, it can be inserted into the soil to collect samples; when the collection cylinder 5 retracts into the sampling port 3, the samples are protected in the collection cylinder 5 to prevent contamination or loss, and soil samples at multiple depths can be collected simultaneously in one operation, improving the efficiency and reducing the disturbance to the soil.

[0024] The installation cavity 2 is provided with a first guiding groove 201 along the axial direction, and the driving block 4 is slidably arranged in the first guiding groove 201.

[0025] In this embodiment, the first guiding groove 201 is located in the installation cavity 2 of the sampling cylinder 1 and is arranged along the axial direction, providing a fixed track so that the driving block 4 can slide smoothly along the set path, avoiding possible deviation or shaking during the operation, and ensuring the accuracy of the sampling depth.

[0026] The installation cavity 2 is provided with a plurality of second guiding grooves 202 at intervals along the axial direction, and the plurality of second guiding grooves 202 are arranged in one-to-one correspondence with the plurality of collection cylinders 5. Each second guiding groove 202 has a first end and a last end arranged oppositely in the radial direction. The first end of the second guiding groove 202 is suspended in the installation cavity 2, and its last end extends to the sampling port 3.

[0027] In this embodiment, the second guiding grooves 202 are located in the installation cavity 2 of the sampling cylinder 1, arranged along the axial direction, and are in one-to-one correspondence with the plurality of collection cylinders 5. Each second guiding groove 202 has a first end and a last end. The first end is suspended in the installation cavity 2, and the last end extends to the corresponding sampling port 3, being in direct contact with the soil, guiding the collection cylinder 5 to move smoothly in the radial direction, and ensuring that the collection cylinder 5 can accurately extend into and withdraw from the soil without skew.

[0028] The collection cylinder 5 is provided with a protrusion 501 for slidably extending into the corresponding second guiding groove 202.

[0029] In this embodiment, the protrusion 501, as a part of the collection cylinder 5, has a shape and size matching the inner wall of the second guiding groove 202, ensuring that the collection cylinder 5 can move smoothly along the predetermined radial path, preventing unnecessary deviation or shaking during the soil sampling process. Through the close contact between the protrusion 501 and the inner wall of the second guiding groove 202, the collection cylinder 5 can obtain additional stability when extending into and withdrawing from the soil in the case of encountering soil resistance.

[0030] Both the driving block 4 and the sampling cylinder 1 are provided with lifting lugs 7, and the connecting rod 6 is hinged to the corresponding lifting lugs 7 for forming the first hinge point 8 and the second hinge point 9.

[0031] In this embodiment, a lifting lug 7 is provided on both the driving block 4 and the sampling tube 1, and the two ends of the connecting rod 6 are respectively hinged to the corresponding lifting lug 7. When an external force acts on the driving block 4, the connecting rod 6 slides downward, so that the angle between the first hinge point 8 and the lifting lug 7 becomes larger, and the angle between the second hinge point 9 and the lifting lug 7 becomes larger, driving the collecting tube 5 to extend into the soil in the radial direction. The connecting rod 6 slides upward, so that the angle between the first hinge point 8 and the lifting lug 7 becomes smaller, and the angle between the second hinge point 9 and the lifting lug 7 becomes smaller, driving the collecting tube 5 to extend into the mounting cavity 2 in the radial direction.

[0032] A driving rod 10 is provided in the mounting cavity 2 along the axial direction, and the driving rod 10 passes through the plurality of driving blocks 4 in sequence.

[0033] In this embodiment, the driving rod 10 passes through all the driving blocks 4, and the extension and retraction of all the collecting components can be controlled simultaneously by a single driving force, thereby ensuring the consistency of the sampling depth and the synchronization of the sampling process. At the same time, the external force can be evenly distributed to each driving block 4, avoiding the uneven force that may occur during manual or individual operation, which affects the accuracy of the sampling results.

[0034] The driving rod 10 is rotatably disposed in the mounting cavity 2 and is threadably engaged with the driving block 4 .

[0035] In this embodiment, the collection assembly can be fine-tuned through the threaded cooperation between the drive rod 10 and the drive block 4, ensuring that each collection tube 5 can accurately reach the predetermined depth. The rotation of the drive rod 10 is converted into the linear motion of the drive block 4, that is, the forward or reverse rotation of the drive rod 10 can cause the drive block 4 to advance or retreat in the axial direction, thereby controlling the extension and withdrawal of the collection tube 5, which is more labor-saving.

[0036] A cutting edge 502 is provided at one end of the sampling tube 1 away from the connecting rod 6 .

[0037] In this embodiment, the sharp edge of the cutting edge 502 can reduce the resistance of the soil to the sampling tube 1, making it easier to penetrate the soil, especially in harder soil layers. The operator's effort required to push the sampling tube 1 into the soil will also be reduced, reducing physical exertion.

[0038] The bottom of the sampling tube 1 is a conical structure.

[0039] In this embodiment, when the conical structure is pushed into the soil, its gradually tapering shape helps to disperse the pressure, reduce the resistance of the soil to the sampling tube 1, and make it easier for the sampling tube 1 to penetrate into the soil.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A soil sampling device, characterized in that, include: The sampling barrel has an axial direction and a radial direction. The axial direction of the sampling barrel is provided with a mounting cavity, and a circumferential surface thereof is provided with a plurality of sampling ports spaced apart along the axial direction, each of the sampling ports being in communication with the mounting cavity along the radial direction; Multiple collecting assemblies are arranged in a one-to-one correspondence at the multiple sampling ports, each of the collecting assemblies includes a driving block and a collecting cylinder arranged at intervals, and a connecting rod movably connecting the driving block and the collecting cylinder, the driving block and the collecting cylinder are respectively arranged in the mounting cavity and the sampling port along the axial direction and the radial direction, and the connection between the connecting rod and the driving block and the collecting cylinder is respectively constructed as a first hinge point and a second hinge point, so that under the action of external force, the driving block is pushed to make the connecting rod link the collecting cylinder to extend into or out of the sampling port.

2. The soil sampling device according to claim 1, characterized in that, The installation cavity is provided with a first guide groove along the axial direction, and the driving block is slidably arranged in the first guide groove.

3. The soil sampling device according to claim 1, characterized in that, The mounting cavity is provided with a plurality of second guide grooves at intervals along the axial direction, and the plurality of second guide grooves are arranged in one-to-one correspondence with the plurality of collecting cylinders. Each of the second guide grooves is formed with oppositely arranged first and last ends along the radial direction, and the first end of the second guide groove is suspended in the mounting cavity, and the tail end thereof extends to the sampling port.

4. The soil sampling device according to claim 3, characterized in that, The collecting cylinder is provided with a protrusion for slidingly extending into the corresponding second guide groove.

5. The soil sampling device according to claim 1, characterized in that, The driving block and the sampling cylinder are both provided with lifting ears, and the connecting rod is hinged to the corresponding lifting ears to form the first hinge point and the second hinge point.

6. A soil sampling device according to any one of claims 1-5, characterized in that, The installation cavity is provided with a driving rod along the axial direction, and the driving rod passes through the plurality of driving blocks in sequence.

7. The soil sampling device according to claim 6, characterized in that, The driving rod is rotatably arranged in the installation cavity and is threadably matched with the driving block.

8. The soil sampling device according to claim 1, characterized in that, An end of the sampling tube facing away from the connecting rod is provided with a cutting edge.

9. The soil sampling device according to claim 1, wherein, The bottom of the sampling cylinder is a conical structure.

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