Multi-point sampling device for environmental monitoring

Abstract

The utility model relates to the technical field of multi-point sampling, in particular to an environment monitoring multi-point sampling device which comprises a sampling cylinder used for collecting soil samples, collecting teeth located at the bottom end of the sampling cylinder and a collecting piece used for collecting the soil samples and located on the inner side wall of the sampling cylinder. An internal thread is arranged on the inner side wall of the digging barrel, a plurality of through grooves penetrating through the internal thread are formed in the inner side wall of the digging barrel, tooth-shaped columns are rotationally arranged in the through grooves, an external thread in threaded connection with the internal thread is arranged on the outer side wall of the sampling barrel, and a spiral rack meshed with the tooth-shaped columns is arranged at the top end of the external thread. According to the utility model, the convex block is ejected through the ejection ring on the outer surface of the collection cylinder, the sampling cylinder is released, the purpose of collecting deep soil is realized, and the problem that the cylinder body is too long and is inconvenient to carry and transport when the deep soil is collected is solved through the arrangement of the threads and the actual excavation depth is equal to the sum of the length of the excavation cylinder and the length of the sampling cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-point sampling, in particular to a multi-point sampling device for environmental monitoring. Background Art

[0002] The multi-point sampling device is mainly used to collect samples at multiple points in a specific environment. This device can ensure that data is obtained from multiple different positions or angles, thereby providing more comprehensive and accurate information. In the process of soil monitoring, multi-point sampling can reduce the accidental errors caused by single-point sampling and improve the accuracy of soil monitoring.

[0003] The utility model patent with the authorization publication number CN219038428U discloses a multi-point soil sampling device, which achieves the purpose of soil collection by rotating the outer trough body and the inner trough body of the collection tube in opposite directions, and preserves the collected soil through a folding piece. However, the above-mentioned device starts to collect from the surface of the soil. If it is necessary to collect soil in a deep layer, the length of the tube body will be too long, which is not convenient for handling and transportation of the equipment.

[0004] Therefore, it is necessary to invent an environmental monitoring multi-point sampling device to solve the above problems. Utility Model Content

[0005] In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide an environmental monitoring multi-point sampling device, which solves the problem that the barrel is too long and inconvenient to carry and transport when the device needs to collect deep soil during actual use.

[0006] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0007] A multi-point sampling device for environmental monitoring includes a power supply box for power supply, a sampling tube for collecting soil samples, collecting teeth located at the bottom of the sampling tube and a gathering piece located on the inner wall of the sampling tube for gathering the soil samples, the power supply box is electrically connected to a plurality of rotatable excavation tubes, the inner wall of the excavation tubes is provided with an internal thread, the inner wall of the excavation tubes is provided with a plurality of through grooves penetrating the internal thread, a toothed column is rotatably provided in the through groove, the outer wall of the sampling tube is provided with an external thread threadedly connected to the internal thread, and the top of the external thread is provided with a spiral rack meshing with the plurality of toothed columns.

[0008] As a preferred solution of the utility model, the outer side wall of the mining tube is provided with spiral blades for drilling into the soil, and the bottom of the mining tube is provided with a plurality of openable and closable mining heads.

[0009] As a preferred embodiment of the present utility model, a convex block for controlling the opening and closing of the mining head is provided on the part of the mining head located inside the mining cylinder, and a top ring for pushing the convex block is provided at the bottom end of the outer side wall of the sampling cylinder.

[0010] As a preferred embodiment of the present utility model, a plurality of fixing blocks for fixing both ends of the toothed column are fixedly installed on the inner side wall of the through groove, the top end of the toothed column is detachably connected with a second rotating assembly, and the plurality of second rotating assemblies rotate synchronously.

[0011] As a preferred embodiment of the present utility model, the top end of the mining cylinder is connected with a first rotating assembly for controlling its rotation, and the first rotating assembly is electrically connected with the power supply box.

[0012] As a preferred embodiment of the present utility model, the outer diameter of the spiral rack is larger than the outer diameter of the external thread, and the external thread does not contact the toothed column.

[0013] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0014] In the present utility model, through the setting of the internal and external threads, the situation of the sampling cylinder falling off from the mining cylinder is avoided. Through the setting of the toothed column inside the through groove, the toothed column drives the spiral rack to rotate, driving the sampling cylinder to extend downward along the internal thread. Through the rotation of the collecting teeth, the soil is collected. Through the setting of the mining head, the sampling cylinder can be blocked from collecting the soil surface layer. When reaching the designated position, the convex block is pushed out by the top ring on the outer surface of the collecting cylinder to release the sampling cylinder, achieving the purpose of collecting deep-layer soil. Through the setting of the internal thread and the external thread, the actual mining depth is the sum of the length of the mining cylinder and the length of the sampling cylinder, solving the problem that the cylinder body is too long when collecting deep-layer soil, which is not convenient for handling and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the partial sectional structural schematic diagram of the mining cylinder of the present utility model;

[0017] Figure 3 is the partial sectional structural schematic diagram of the present utility model after removing the sampling cylinder;

[0018] Figure 4 is the partial sectional structural schematic diagram of the sampling cylinder of the present utility model.

[0019] Explanation of the reference numerals: 1. power supply box; 2. mining barrel; 201. spiral fan blade; 202. through groove; 203. internal thread; 204. fixed block; 3. mining head; 301. protrusion; 4. first rotating assembly; 5. second rotating assembly; 6. toothed column; 7. sampling barrel; 701. collecting teeth; 702. ejection ring; 703. external thread; 704. spiral rack; 705. gathering piece. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0021] The utility model provides Figures 1-4 An environmental monitoring multi-point sampling device shown in the figure includes a power supply box 1 for power supply, a sampling tube 7 for collecting soil samples, a collecting tooth 701 located at the bottom end of the sampling tube 7, and a collecting member 705 located on the inner wall of the sampling tube 7 for collecting soil samples. The power supply box 1 is electrically connected to a plurality of rotatable excavation tubes 2, the inner wall of the excavation tube 2 is provided with an internal thread 203, the inner wall of the excavation tube 2 is provided with a plurality of through grooves 202 penetrating the internal thread 203, a toothed column 6 is rotatably arranged in the through groove 202, the outer wall of the sampling tube 7 is provided with an external thread 703 threadedly connected to the internal thread 203, and the top of the external thread 703 is provided with a spiral rack 704 meshing with the plurality of toothed columns 6. Through the arrangement of the thread and the toothed column 6 and the spiral rack 704, the function of rotation and extension is realized in a smaller space, the space occupied by the device is reduced, and the difficulty of transportation is reduced.

[0022] The outer wall of the mining tube 2 is provided with a spiral fan blade 201 for drilling into the soil, and the bottom of the mining tube 2 is provided with a plurality of openable and closable mining heads 3. The setting of the mining heads 3 can prevent the soil from drilling into the interior of the sampling tube 7 in the early stage of mining, thereby affecting the monitoring accuracy and maintaining the accuracy of the sampling data.

[0023] The part of the mining head 3 located inside the mining tube 2 is provided with a protrusion 301 for controlling the opening and closing of the mining head 3, and the bottom end of the outer wall of the sampling tube 7 is provided with an ejection ring 702 for pushing the protrusion 301. The distance of the ejection ring 702 should be set to ensure that before the ejection ring 702 ejects the protrusion 301, the collecting teeth 701 will not cut the mining head 3 to avoid damage to the device.

[0024] A plurality of fixing blocks 204 for fixing both ends of the toothed column 6 are fixedly installed on the inner side wall of the through groove 202. The top end of the toothed column 6 is detachably connected to the second rotating assembly 5. The plurality of second rotating assemblies 5 rotate synchronously. By the synchronous rotation of the plurality of second rotating assemblies 5, the sampling cylinder 7 is constrained inside the excavation cylinder 2 to ensure the stability of the device operation.

[0025] The top end of the excavation cylinder 2 is connected to a first rotating assembly 4 that controls its rotation. The first rotating assembly 4 is electrically connected to the power supply box 1. During use, a certain downward pressure should be applied to the first rotating assembly 4 to ensure that the excavation cylinder 2 can excavate the soil to achieve the purpose of deep soil collection.

[0026] The outer diameter of the spiral rack 704 is larger than the outer diameter of the external thread 703, and the external thread 703 does not contact the toothed column 6. By setting the outer diameter of the spiral rack 704 to be larger than that of the external thread 703, it is ensured that during the rotation of the toothed column 6, the spiral rack 704 can mesh with it and rotate, and during the rotation of the toothed column 6, there will be no interference with the external thread 703 to ensure the stable rotation of the device.

[0027] In the actual use of the present utility model, the first rotating assembly 4 is fixed to the required monitoring position, and the excavation cylinder 2 is controlled to rotate. The soil is discharged through the setting of the spiral fan blade 201. At the same time, the excavation head 3 is in a closed state. When the excavation cylinder 2 penetrates into the soil to a certain depth, the ejection ring 702 ejects the convex block 301. Through the rotation control of the second rotating assembly 5, the sampling cylinder 7 extends out to achieve the purpose of soil collection. Through the setting of the thread, the situation of the sampling cylinder 7 falling off from the excavation cylinder 2 is avoided. Through the setting of the toothed column 6 inside the through groove 202, the toothed column 6 drives the spiral rack 704 to rotate, driving the sampling cylinder 7 to extend downward along the internal thread 203. Through the rotation of the collection teeth 701, the soil is collected. Through the setting of the excavation head 3, it can prevent the sampling cylinder 7 from collecting the soil surface layer. When reaching the designated position, the convex block 301 is ejected by the ejection ring 702 on the outer surface of the collection cylinder to release the sampling cylinder 7 to achieve the purpose of collecting deep soil. Through the setting of the internal thread 203 and the external thread 703, the actual excavation depth is the length of the excavation cylinder 2 plus the length of the sampling cylinder 7, solving the problem that the cylinder body is too long when collecting deep soil, which is not convenient for handling and transportation.

[0028] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present utility model.

Claims

1. A multi-point sampling device for environmental monitoring, characterized in that: The invention comprises a power supply box (1) for supplying electricity, a sampling tube (7) for collecting soil samples, a collecting tooth (701) located at the bottom end of the sampling tube (7), and a collecting member (705) located on the inner wall of the sampling tube (7) for collecting soil samples, wherein the power supply box (1) is electrically connected to a plurality of rotatable excavation tubes (2), the inner wall of the excavation tube (2) is provided with an internal thread (203), the inner wall of the excavation tube (2) is provided with a plurality of through grooves (202) penetrating the internal thread (203), a toothed column (6) is rotatably provided in the through groove (202), the outer wall of the sampling tube (7) is provided with an external thread (703) threadedly connected to the internal thread (203), and the top of the external thread (703) is provided with a spiral rack (704) meshing with the plurality of toothed columns (6).

2. The multi-point sampling device for environmental monitoring according to claim 1, characterized in that: The outer wall of the mining tube (2) is provided with a spiral fan blade (201) for drilling into the soil, and the bottom of the mining tube (2) is provided with a plurality of openable and closable mining heads (3).

3. The multi-point sampling device for environmental monitoring according to claim 2, characterized in that: The portion of the mining head (3) located inside the mining barrel (2) is provided with a protrusion (301) for controlling the opening and closing of the mining head (3), and the bottom end of the outer wall of the sampling barrel (7) is provided with an ejection ring (702) for pushing the protrusion (301).

4. The multi-point sampling device for environmental monitoring according to claim 1, characterized in that: A plurality of fixing blocks (204) for fixing the two ends of the toothed column (6) are fixedly mounted on the inner side wall of the through slot (202); a second rotating assembly (5) is detachably connected to the top end of the toothed column (6); and a plurality of the second rotating assemblies (5) rotate synchronously.

5. The multi-point sampling device for environmental monitoring according to claim 1, characterized in that: The top end of the mining tube (2) is connected to a first rotating assembly (4) for controlling its rotation, and the first rotating assembly (4) is electrically connected to the power supply box (1).

6. The multi-point sampling device for environmental monitoring according to claim 1, characterized in that: The outer diameter of the spiral rack (704) is greater than the outer diameter of the external thread (703), and the external thread (703) does not contact the toothed column (6).

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