Sampling instrument for detecting polluted soil

Abstract

The invention relates to a sampling instrument for detecting polluted soil. Comprising a spiral soil sampling device, a mounting transverse plate is connected to the spiral soil sampling device, and a plurality of buffer telescopic devices are connected to the mounting transverse plate; the spiral soil sampling device comprises a motor base fixedly connected with the mounting transverse plate, a soil sampling motor with a longitudinally arranged output shaft is connected to the motor base, a rotating shaft penetrating through the motor base and the mounting transverse plate is connected to the output shaft of the soil sampling motor through a coupler, and the rotating shaft is rotationally connected with the motor base through a rolling bearing; a spiral blade is connected to the peripheral wall of the rotating shaft, and a soil sampling outer cylinder with an opening in the outer end is arranged outside the spiral blade in a sleeving manner; the buffering telescopic device comprises a supporting outer pipe which is longitudinally arranged, a telescopic inner column which is in sliding connection with the supporting outer pipe is inserted into the supporting outer pipe, the telescopic inner column is sleeved with a buffering spring, and the two ends of the buffering spring abut against the supporting outer pipe and the telescopic inner column respectively. The invention provides a sampling instrument for detecting polluted soil, which can be used for sampling soil at different depths in a time-saving and labor-saving manner and is high in working efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of soil detection, and in particular relates to a sampler for detecting contaminated soil. Background Art

[0002] Soil testing refers to determining the environmental quality (or degree of pollution) and its changing trends by measuring the representative values ​​of factors that affect soil environmental quality. Sometimes, in order to understand the degree of soil pollution, it is necessary to test the soil at different depths to understand the distribution of pollutants in the soil along the depth direction. Therefore, soil sampling is required in the early stage to facilitate later testing.

[0003] At present, when sampling soil, most people use ordinary manual samplers for manual sampling. This sampling method is inefficient, time-consuming and labor-intensive, increases the workload of samplers, and reduces their work efficiency, thus bringing great inconvenience to soil detection and management. Summary of the invention

[0004] The present invention provides a sampler for detecting contaminated soil with reasonable structural design and high working efficiency to solve the technical problems existing in the known technology. The present invention can save time and effort to sample soil at different depths.

[0005] The present invention adopts a technical solution to solve the technical problems existing in the known technology: a contaminated soil detection sampler includes a spiral soil sampling device, a horizontally arranged mounting horizontal plate is connected to the spiral soil sampling device, and a plurality of buffer telescopic devices are connected to the mounting horizontal plate;

[0006] The spiral soil-taking device comprises a motor base fixedly connected to the mounting horizontal plate, a soil-taking motor with an output shaft longitudinally arranged on the motor base is connected to the motor base, a rotating shaft penetrating the motor base and the mounting horizontal plate is connected to the output shaft of the soil-taking motor through a coupling, and the rotating shaft is rotatably connected to the motor base through a rolling bearing; a spiral blade is connected to the outer peripheral wall of the rotating shaft, and a soil-taking outer cylinder with an open outer end is arranged on the outer sleeve of the spiral blade;

[0007] The buffer telescopic device includes a longitudinally arranged supporting outer tube, a telescopic inner column slidably connected to the supporting outer tube is inserted into the supporting outer tube, a buffer spring is sleeved on the telescopic inner column, and the two ends of the buffer spring are respectively against the supporting outer tube and the telescopic inner column.

[0008] The advantages and positive effects of the present invention are as follows: the present invention provides a sampler for detecting contaminated soil, which forms an auger structure by arranging a rotating shaft and spiral blades, and can drive the auger structure to rotate by arranging a soil sampling motor, and the auger structure cooperates with the soil sampling outer cylinder to drill soil at different depths, thereby reducing the manual labor intensity during the sampling process, improving the efficiency of the work group, and realizing a sampling process that is both fast and convenient; by arranging a buffer telescopic device, a shock-absorbing effect can be played on the sampler during the working process, thereby reducing the vibration amplitude of the sampler during the working process, and improving the stability of the working process.

[0009] Preferably, an anchor column is coaxially connected to the outer end of the rotating shaft, and the outer end of the anchor column is in a cone shape.

[0010] Preferably, a motor protection cover is connected to the motor seat and is arranged outside the earth-excavating motor.

[0011] Preferably: a bearing mounting seat is fixedly connected to the mounting transverse plate, and the rotating shaft is rotatably connected to the bearing mounting seat via a rolling bearing.

[0012] Preferably: a transfer plate is connected to the motor seat.

[0013] Preferably, a handle is connected to the mounting horizontal plate.

[0014] Preferably, longitudinally distributed scales are provided on the outer peripheral wall of the soil-extracting outer cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a partial cross-sectional structure of the main view of the present invention;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the spiral soil taking device in the present invention.

[0017] In the figure: 1. Buffer telescopic device; 1-1. Support outer tube; 1-2. Telescopic inner column; 1-3. Buffer spring; 2. Spiral earth-excavating device; 2-1. Anchor column; 2-2. Spiral blade; 2-3. Earth-excavating outer cylinder; 2-4. Rotating shaft; 2-5. Bearing mounting seat; 2-6. Motor seat; 2-7. Earth-excavating motor; 2-8. Motor protective cover; 2-9. Cable connector; 2-10. Adapter plate; 3. Mounting cross plate; 4. Handle. DETAILED DESCRIPTION

[0018] In order to further understand the content, features and effects of the present invention, the following embodiments are described in detail as follows:

[0019] See also Figure 1 and Figure 2The sampler for detecting contaminated soil of the present invention includes a spiral soil sampling device 2. In the present embodiment, the spiral soil sampling device 2 includes a motor base 2-6, and a soil sampling motor 2-7 with an output shaft longitudinally arranged is connected to the motor base 2-6. The sampler can use an external power supply or a battery to power the soil sampling motor 2-7. A rotating shaft 2-4 that passes through the motor base 2-6 and the mounting cross plate 3 is connected to the output shaft of the soil sampling motor 2-7 through a coupling. A bearing mounting seat 2-5 is fixedly connected to the mounting cross plate 3, and the rotating shaft 2-4 is rotatably connected to the bearing mounting seat 2-5 through a rolling bearing. A motor protective cover 2-8 that is arranged outside the soil sampling motor 2-7 is connected to the motor base 2-6, and a cable connector 2-9 is connected to the motor protective cover 2-8.

[0020] An anchor column 2-1 is coaxially connected to the outer end of the rotating shaft 2-4, and the outer end of the anchor column 2-1 is cone-shaped. The anchor column 2-1 is provided to facilitate the positioning of the spiral soil-taking device 2, thereby increasing the stability of the working process. A spiral blade 2-2 is connected to the outer peripheral wall of the rotating shaft 2-4, and an outer tube 2-3 for taking soil with an open outer end is provided on the outer sleeve of the spiral blade 2-2. The spiral blade 2-2 is adjacent to the inner wall of the outer tube 2-3 for taking soil and is gap-matched with the outer tube 2-3 for taking soil. The outer tube 2-3 for taking soil is fixedly connected to the motor seat 2-6, and a longitudinally distributed scale is provided on the outer peripheral wall of the outer tube 2-3 for taking soil. An adapter plate 2-10 is connected to the motor seat 2-6, and a through hole is provided on the adapter plate 2-10, and a rod can be inserted into the through hole, thereby facilitating the staff to hold the spiral soil-taking device 2 by hand.

[0021] The working principle of the spiral soil extraction device 2: the output shaft of the soil extraction motor 2-7 drives the rotating shaft 2-4 to rotate, and the rotation of the rotating shaft 2-4 can drive the spiral blade 2-2 to rotate, thereby drilling the soil at a fixed position. At this time, the motor seat 2-6 / soil extraction outer cylinder 2-3 is manually pressed to make the soil extraction outer cylinder 2-3 drill into the soil, and finally complete the sampling of soil at different depths. During the sampling process, the spiral blade 2-2 lifts the soil into the soil extraction outer cylinder 2-3; after the drilling is completed, the output shaft of the soil extraction motor 2-7 drives the rotating shaft 2-4 to rotate in the opposite direction, thereby releasing the soil in the soil extraction outer cylinder 2-3 to the outside of the soil extraction outer cylinder 2-3.

[0022] like Figure 1 As shown, in order to improve the stability of the working process of the spiral earth-taking device 2 and avoid excessive vibration affecting the working process and the service life of the spiral earth-taking device 2, multiple groups of buffer telescopic devices 1 are provided in this embodiment. Specifically, a transversely arranged mounting cross plate 3 is connected to the spiral earth-taking device 2, the motor seat 2-6 is connected to the mounting cross plate 3 by screws, and the buffer telescopic device 1 is connected to the mounting cross plate 3. For convenience, a handle 4 is connected to the mounting cross plate 3.

[0023] The buffer telescopic device 1 includes a longitudinally arranged supporting outer tube 1-1, a telescopic inner column 1-2 slidably connected thereto is inserted in the supporting outer tube 1-1, a horizontally arranged limit plate is fixedly connected to the lower end of the telescopic inner column 1-2, and a threaded sleeve that can block the limit plate on the telescopic inner column 1-2 is threadedly connected to the upper end of the supporting outer tube 1-1. A buffer spring 1-3 is sleeved on the telescopic inner column 1-2, and the two ends of the buffer spring 1-3 are respectively against the supporting outer tube 1-1 and the telescopic inner column 1-2. In this embodiment, a flange is connected to the upper end of the telescopic inner column 1-2, and the flange is connected to the mounting cross plate 3 through locking bolts and nuts, and the upper end of the buffer spring 1-3 is pressed against the above-mentioned flange. In order to facilitate the movement of the sampler, casters and support feet can be fixed to the bottom of the supporting outer tube 1-1, thereby improving the mobility of the sampler.

[0024] When the sampler for contaminated soil detection of this embodiment is working, the loose soil at the sampling point can be cleaned in advance according to the needs of the actual situation; the sampler is moved to the sampling point, the rotating shaft 2-4 is placed vertically, and the handle 4 is pressed downward to press the mounting cross plate 3, so that the tip of the anchor column 2-1 is inserted into the soil layer, thereby completing the positioning; the soil sampling motor 2-7 is started, and the output shaft of the soil sampling motor 2-7 drives the rotating shaft 2-4 and the spiral blade 2-2 to rotate. At this time, the mounting cross plate 3 is continuously pressed downward, so that the soil sampling outer tube 2-3 is drilled into the soil to sample the soil; during the sampling process, the telescopic inner column 1-2 slides back and forth longitudinally along the supporting outer tube 1-1 under the action of the buffer spring 1-3, and the buffer spring 1-3 is continuously compressed and restored between the supporting outer tube 1-1 and the telescopic inner column 1-2 under the action of the two, which has a shock-absorbing effect on the device. Whether the soil sampling outer cylinder 2-3 is drilled to a suitable position can be determined by reading the scale on the outer wall of the soil sampling outer cylinder 2-3. When the soil sampling outer cylinder 2-3 is drilled to a suitable depth, the handle 4 is manually extracted to allow the soil sampling outer cylinder 2-3 to take out the soil sample.

[0025] After drilling is completed, the output shaft of the soil-extracting motor 2-7 drives the rotating shaft 2-4 to rotate in the opposite direction, thereby releasing the soil in the soil-extracting outer cylinder 2-3 to the outside of the soil-extracting outer cylinder 2-3.

Claims

1. A sampler for detecting contaminated soil, characterized by: It comprises a spiral soil taking device (2), a transversely arranged mounting horizontal plate (3) is connected to the spiral soil taking device (2), and a plurality of groups of buffer telescopic devices (1) are connected to the mounting horizontal plate (3); The spiral soil excavation device (2) comprises a motor seat (2-6) fixedly connected to a mounting horizontal plate (3); a soil excavation motor (2-7) with an output shaft longitudinally arranged is connected to the motor seat (2-6); a rotating shaft (2-4) penetrating the motor seat (2-6) and the mounting horizontal plate (3) is connected to the output shaft of the soil excavation motor (2-7) via a coupling; the rotating shaft (2-4) is rotatably connected to the motor seat (2-6) via a rolling bearing; a spiral blade (2-2) is connected to the outer peripheral wall of the rotating shaft (2-4); and a soil excavation outer cylinder (2-3) with an open outer end is disposed on the outer sleeve of the spiral blade (2-2); The buffer telescopic device (1) comprises a longitudinally arranged supporting outer tube (1-1), a telescopic inner column (1-2) slidably connected to the supporting outer tube (1-1) is inserted into the supporting outer tube (1-1), a buffer spring (1-3) is sleeved on the telescopic inner column (1-2), and two ends of the buffer spring (1-3) are respectively against the supporting outer tube (1-1) and the telescopic inner column (1-2).

2. The contaminated soil detection sampler as claimed in claim 1, characterized in that: The outer end of the rotating shaft (2-4) is coaxially connected to an anchor column (2-1), and the outer end of the anchor column (2-1) is in a cone shape.

3. The contaminated soil detection sampler according to claim 1, characterized in that: The motor seat (2-6) is connected with a motor protection cover (2-8) which is arranged outside the soil-excavating motor (2-7).

4. The contaminated soil detection sampler as claimed in claim 1, characterized in that: A bearing mounting seat (2-5) is fixedly connected to the mounting transverse plate (3), and the rotating shaft (2-4) is rotationally connected to the bearing mounting seat (2-5) via a rolling bearing.

5. The contaminated soil detection sampler according to claim 1, characterized in that: A transfer plate (2-10) is connected to the motor seat (2-6).

6. The contaminated soil detection sampler according to claim 1, characterized in that: A handle (4) is connected to the mounting transverse plate (3).

7. The contaminated soil detection sampler according to claim 1, characterized in that: The outer peripheral wall of the soil-extracting outer cylinder (2-3) is provided with longitudinally distributed scales.

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