Soil sampler for soil pollution prevention and control

Abstract

The soil sampler is applied to the field of soil sampling equipment and comprises a sampling barrel and a core tube, the sampling barrel is arranged to be in a circular barrel shape and is of a hollow structure, the upper end of the sampling barrel is provided with a communicating opening, the lower end of the sampling barrel is arranged in a penetrating mode, and the core tube is arranged to be in a circular barrel shape and is of a hollow structure; the upper end and the lower end of the core pipe are arranged in a penetrating mode, the core pipe and the sampling barrel are coaxially connected and communicated through a communication opening, a first handle is arranged at the upper end of the core pipe, a push rod is arranged in the core pipe, the upper end of the push rod extends out of the core pipe and is provided with a second handle, and the lower end of the push rod extends into the sampling barrel and is provided with a bulldozing plate. The bulldozing plate is matched with the inner wall of the sampling barrel, and the lower end of the sampling barrel is provided with soil fixing steel bars on the inner wall of the sampling barrel in the circumferential direction. According to the soil sampler, in the process of pulling out the sampling barrel, due to the fact that a soil sample is fixed by the soil fixing reinforcing steel bars and the soil fixing grooves, the soil sample can be pulled out along with the sampling barrel more easily.

Description

Technical Field

[0001] The present application relates to the field of soil sampling equipment, and in particular to a soil sampler for soil pollution prevention and control. Background Art

[0002] The soil pollution problem is ultimately an environmental problem. With the rapid development of urbanization, industrialization and agriculture, the soil pollution problem is becoming more and more serious, and soil pollution prevention and control is imminent.

[0003] Soil pollution prevention and control is an activity that uses a series of measures to prevent soil from being polluted and to improve and treat already polluted soil. Soil pollution prevention and control work is often accompanied by the need to sample soil in polluted areas. After the soil is sampled, the soil samples are tested. Soil samplers are a commonly used soil sampling device on the market.

[0004] Existing soil samplers, such as a soil sampling device for soil pollution prevention and control with publication number CN215640275U, select and locate the sampling point, align the projection position of the shovel barrel with the sampling point position, step on the pedal fixing devices on both sides of the gantry frame with both feet, hold the handles on the upper end of the slide bar with both hands and slowly press down until the shovel barrel is embedded in the soil layer to the required depth, slowly rotate at the sampling depth and apply force upward to pull out the shovel barrel, and when the shovel barrel is pulled out for sampling, the shovel barrel is open due to the slight expansion of the inner soil because it is free of constraints on the outside and filled with soil on the inside, so that the soil sample inside the shovel barrel can be naturally separated from the shovel barrel in a complete columnar shape, and a complete soil sample is obtained. After the shovel barrel is shoveled into the soil, since the inner surface of the shovel barrel is relatively smooth, there is a small friction between the inner surface of the shovel barrel and the soil, so it is difficult to pull out the soil sample with the shovel barrel, which brings inconvenience to the soil sampling work. Utility Model Content

[0005] In order to improve the defect that soil samples are difficult to pull out together with the shovel tube, the present application provides a soil sampler for soil pollution prevention and control.

[0006] The present application provides a soil sampler for soil pollution prevention and control, which adopts the following technical solution:

[0007] A soil sampler for soil pollution prevention and control, comprising a sampling barrel and a core tube, the sampling barrel is configured to be a circular cylindrical structure with a hollow interior, a connecting port is provided at the upper end of the sampling barrel and is penetrated at the lower end, the core tube is also configured to be a circular cylindrical structure with a hollow interior, the upper and lower ends of the core tube are both penetrated, the core tube and the sampling barrel are coaxially connected and fixed, and the core tube and the sampling barrel are connected through the connecting port, a first handle is provided at the upper end of the core tube, a push rod is provided in the core tube, the upper end of the push rod extends out of the core tube and is provided with a second handle, the lower end of the push rod extends into the sampling barrel, a bulldozer is provided at the lower end of the push rod, the bulldozer is adapted to the inner wall of the sampling barrel, and soil-fixing steel bars are provided on the inner wall of the sampling barrel along the circumferential direction at the lower end of the sampling barrel.

[0008] By adopting the above technical solution, when the soil sampler is actually used, the sampling tube is inserted into the soil in a direction perpendicular to the ground. During this process, the staff can hold the first handle, which makes the soil sampler more convenient to implement. When the sampling tube is slowly inserted downward into the soil, the soil first passes through the smaller space surrounded by the soil-fixing steel bars at the bottom of the sampling tube, and then enters the larger space in the inner cavity of the sampling tube located above the soil-fixing steel bars. In this space, the soil and the inner wall of the sampling tube are pressed against each other due to the ductility of the soil until the sampling tube is inserted into the soil to the required depth, and then the sampling tube is pulled out upward. During this process, since the soil sample is blocked by the soil-fixing steel bars, the soil sample is easier to be pulled out together with the sampling tube. Finally, the staff can hold the second handle and push the push rod to make the bulldozer plate push the soil sample out from the bottom of the sampling tube.

[0009] Optionally, a plurality of soil-fixing grooves for soil embedding are provided on the inner wall of the sampling tube.

[0010] By adopting the above technical solution, after the soil sample in the inner cavity of the sampling tube is freed from the restraint of the soil-fixing steel bars, the soil sample and the inner wall of the sampling tube will be pressed against each other due to the effect of ductility, and the soil sample will be embedded in the densely distributed solid grooves on the inner wall of the sampling tube, thereby achieving the effect of fixing the soil sample, so that in the process of pulling out the sampling tube, the soil sample will be pulled out together with the sampling tube.

[0011] Optionally, the soil consolidation groove is configured to have a structure with a wide groove body and a narrow groove opening.

[0012] By adopting the above technical solution, this structural design can improve the effect of the soil fixing trough in fixing the soil sample.

[0013] Optionally, a mounting groove is opened on the inner wall of the sampling tube at the lower end along the circumferential direction, a mounting ring plate is embedded in the mounting groove, the soil-fixing steel bars are fixed on the mounting ring plate, and the mounting ring plate and the sampling tube are fixed by screws.

[0014] By adopting the above technical solution, the soil-fixing steel bars are detachably fixed at the bottom of the sampling tube by installing ring plates and screws. That is, when the soil sample needs to be pushed out with a bulldozer after the sampling is completed, the soil-fixing steel bars can be removed from the bottom of the sampling tube, so as to facilitate better pushing of the soil sample out of the sampling tube.

[0015] Optionally, an internal spiral tube is provided at the communication port at the upper end of the sampling tube, and an external spiral tube is provided at the lower end of the core tube. The internal spiral tube is arranged inside the external spiral tube and the internal spiral tube and the external spiral tube are threadedly connected.

[0016] By adopting the above technical solution, the sampling tube and the core tube can be detachably fixed through the inner spiral tube and the outer spiral tube, thereby facilitating the storage of the soil sampler.

[0017] Optionally, the sampling cylinder is composed of a left half cylinder and a right half cylinder, the internal spiral tube is composed of a left half tube and a right half tube, the left half cylinder and the left half tube are an integrated structure, and the right half cylinder and the right half tube are an integrated structure.

[0018] By adopting the above technical solution, the sampling cylinder is composed of a left half cylinder and a right half cylinder, so the sampling cylinder can be disassembled into the left half cylinder and the right half cylinder after use, thereby facilitating the staff to clean the inner cavity of the sampling cylinder, especially the soil fixing groove.

[0019] Optionally, a guiding slope is provided at the lower end of the sampling cylinder on the outer wall of the sampling cylinder along the circumferential direction.

[0020] By adopting the above technical solution, the structure of providing the guiding slope can facilitate the insertion of the sampling tube into the soil.

[0021] Optionally, both the first handle and the second handle are provided with a silicone sleeve.

[0022] By adopting the above technical solution and arranging silicone sleeves on the first handle and the second handle, the comfort of the hand holding of the staff when using the soil sampler can be improved.

[0023] In summary, this application includes the following beneficial technical effects:

[0024] 1. When the sampling tube is inserted downward into the soil, the soil first passes through the smaller space surrounded by the soil-fixing steel bars at the bottom of the sampling tube, and then enters the larger space in the inner cavity of the sampling tube located above the soil-fixing steel bars. In this space, the soil and the inner wall of the sampling tube are pressed against each other due to the ductility of the soil, and the soil will be embedded in the soil-fixing groove until the sampling tube is inserted into the soil to the required depth. Then, the sampling tube is pulled out upward. In the process of pulling out the sampling tube, the soil sample is better fixed in the sampling tube because it is blocked by the soil-fixing steel bars and the soil-fixing groove. Therefore, the soil sample is easier to be pulled out together with the sampling tube.

[0025] 2. After the sampling tube completes the sampling of the soil sample, the staff can hold the second handle and push the push rod to make the bulldozer push the soil sample out from the bottom of the sampling tube. But before that, the soil-fixing steel bars can be removed from the bottom of the sampling tube to prevent the soil sample from being blocked by the soil-fixing steel bars and unable to be pushed out of the sampling tube smoothly.

[0026] 3. As for the sampling cylinder, the sampling cylinder is assembled from a left half cylinder and a right half cylinder, so the sampling cylinder can be disassembled into a left half cylinder and a right half cylinder after use, so as to facilitate the staff to clean the inner cavity of the sampling cylinder, especially the soil fixing groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the soil sampler in the embodiment of the present application.

[0028] Figure 2 It is a structural cross-sectional view of the soil sampler in the embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view of the connection structure between the core tube and the sampling tube in the embodiment of the present application.

[0030] Figure 4 It is a schematic diagram of the structure of the sampling tube in the embodiment of the present application.

[0031] Figure numerals: 1. sampling cylinder; 101. left half cylinder; 102. right half cylinder; 2. core tube; 3. internal screw tube; 31. left half tube; 32. right half tube; 4. push rod; 5. external screw tube; 6. bulldozer plate; 7. soil-fixing steel bars; 8. soil-fixing groove; 9. mounting groove; 10. mounting ring plate; 11. screw; 12. guide ramp; 13. silicone sleeve; 14. first handle; 15. second handle. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The present application embodiment discloses a soil sampler for soil pollution prevention and control, referring to Figure 1 and Figure 2 The soil sampler for soil pollution prevention and control comprises a sampling tube 1, a core tube 2 and a push rod 4. The sampling tube 1 is a hollow circular cylindrical structure, and the upper end of the sampling tube 1 is provided with a connecting port and the lower end is completely through-set. The core tube 2 is also a hollow circular cylindrical structure, and the upper and lower ends of the core tube 2 are completely through-set, but the core tube 2 is more slender than the sampling tube 1. Figure 3, an internal screw 3 is connected and fixed at the upper end of the sampling tube 1 at the connecting port, the outer surface of the internal screw 3 has a threaded structure, and an external screw 5 is connected and fixed at the lower end of the core tube 2, the inner surface of the external screw 5 also has a threaded structure, the threaded structure of the outer surface of the internal screw 3 and the threaded structure of the inner surface of the external screw 5 are thread-matched, so the internal screw 3 can be screwed and fixed in the external screw 5, so that the core tube 2 and the sampling tube 1 are assembled and fixed, and the core tube 2 and the sampling tube 1 are connected to each other through the connecting port and the core tube 2 and the sampling tube 1 remain coaxial. When the soil sampler is in use, the sampling tube 1 is inserted into the soil in a direction perpendicular to the ground, but in this process, the staff needs to continuously apply downward pressure to the core tube 2. In order to facilitate use and save manpower, a first handle 14 can be set at the upper end of the core tube 2, and the first handle 14 is set one on each side of the core tube 2, and a silicone sleeve 13 is set on the first handle 14 to increase the comfort of holding.

[0034] Reference Figure 1 and Figure 2 The push rod 4 is a solid rod with a circular structure. The push rod 4 is movably arranged in the core tube 2, and the upper end of the push rod 4 extends out of the core tube 2 and is provided with a second handle 15. The second handle 15 is also provided with a silicone sleeve 13 to increase the comfort of holding. The lower end of the push rod 4 extends out of the core tube 2 and extends into the sampling tube 1. A bulldozer 6 is provided at the lower end of the push rod 4. The bulldozer 6 and the inner wall of the sampling tube 1 are in an adaptive relationship. Therefore, after the sampling tube 1 is pulled out of the soil upward, when the soil sample needs to be taken out of the sampling tube 1, the staff can hold the second handle 15 and push the push rod 4 downward. The push rod 4 pushes the bulldozer 6 downward until the bulldozer 6 pushes the soil sample out from the bottom of the sampling tube 1.

[0035] Reference Figure 3 and Figure 4On the one hand, considering that the sampling tube 1 is easier to shovel into the soil, a guide slope 12 can be provided on the outer wall of the sampling tube 1 at the lower end of the sampling tube 1 along the circumferential direction. The guide slope 12 has a certain guiding effect on the shoveling of the sampling tube 1 into the soil, making the implementation of the soil sampler more convenient. On the other hand, considering that the inner wall of the sampling tube 1 is relatively smooth, that is, the fixing effect of the soil sample in the sampling tube 1 will not be ideal, and the soil sample is difficult to pull out together with the sampling tube 1. In order to solve this problem, soil-fixing steel bars 7 can be provided on the inner wall of the sampling tube 1 at the lower end of the sampling tube 1 along the circumferential direction, and a number of soil-fixing grooves 8 with a wide groove body and a narrow groove mouth for soil embedding are provided on the inner wall of the sampling tube 1. In this way, when the sampling tube 1 is inserted downward into the soil, the soil first passes through the soil-fixing steel bars at the bottom of the sampling tube 1. 7, and then enter the larger space in the inner cavity of the sampling tube 1 located above the soil-fixing steel bars 7. In this space, the soil and the inner wall of the sampling tube 1 are pressed against each other due to the ductility of the soil, and will be embedded in the soil-fixing groove 8 until the sampling tube 1 is inserted into the soil to the required depth, and then the sampling tube 1 is pulled out upward. In the process of pulling out the sampling tube 1, since the soil sample is fixed by the soil-fixing steel bars 7 and the soil-fixing groove 8, the soil sample will be easier to be pulled out together with the sampling tube 1, so that the performance of the soil sampler is better.

[0036] Reference Figure 3 As for the soil-fixing steel bars 7, the soil-fixing steel bars 7 are actually fixed on a mounting ring plate 10 with a circle structure. The mounting ring plate 10 is located on the outside of the soil-fixing steel bars 7. A mounting groove 9 is opened along the circumferential direction on the inner wall of the sampling tube 1 at the lower end of the sampling tube 1. The mounting ring plate 10 can be installed from the bottom of the sampling tube 1 to the mounting groove 9, and then the mounting ring plate 10 and the sampling tube 1 are fixed by screws 11 to fix the soil-fixing steel bars 7. Conversely, after the sampling tube 1 completes the sampling of the soil sample, the soil-fixing steel bars 7 can be removed from the bottom of the sampling tube 1 first, and then the push rod 4 is pushed so that the push plate 6 pushes the soil sample out from the bottom of the sampling tube 1 to avoid the soil sample being blocked by the soil-fixing steel bars 7 and unable to be smoothly pushed out from the bottom of the sampling tube 1.

[0037] Reference Figure 4As for the structure of the sampling tube 1, it should be noted that the sampling tube 1 is composed of a left half tube 101 and a right half tube 102 of equal size, and the internal spiral tube 3 is composed of a left half tube 31 and a right half tube 32 of equal size. The left half tube 101 and the left half tube 31 are an integrated structure, and the right half tube 102 and the right half tube 32 are an integrated structure. Therefore, when assembling the sampling tube 1, the left half tube 101 and the right half tube 102 as well as the left half tube 31 and the right half tube 32 are aligned and assembled to form the sampling tube 1 and the internal spiral tube 3, and the internal spiral tube 3 is screwed into the external spiral tube 5. This action not only assembles and fixes the sampling tube 1 and the core tube 2, but also assembles and fixes the sampling tube 1 itself. The mounting ring plate 10 and the soil-fixing steel bars 7 at the bottom of the sampling tube 1 further assemble and fix the sampling tube 1 itself, making the structure of the sampling tube 1 more stable during use. After the sampling tube 1 is used, it can be disassembled into a left half tube 101 and a right half tube 102, so that the staff can clean the inner cavity of the sampling tube 1, especially the soil fixing groove 8, for next use.

[0038] The implementation principle of a soil sampler for soil pollution prevention and control in an embodiment of the present application is as follows: when the soil sampler is actually used, the sampling tube 1 is inserted into the soil in a direction perpendicular to the ground. During this process, the staff can hold the first handle 14, so that the soil sampler is more convenient to implement. In the process of slowly inserting the sampling tube 1 downward into the soil, the soil first passes through the smaller space surrounded by the soil-fixing steel bars 7 at the bottom of the sampling tube 1, and then enters the larger space in the inner cavity of the sampling tube 1 located above the soil-fixing steel bars 7. In this space, under the action of the ductility of the soil, the soil and the inner wall of the sampling tube 1 are pressed against each other and embedded in the soil-fixing groove 8 until the sampling tube 1 is inserted into the soil to the required depth, and then the sampling tube 1 is pulled out upward. During this process, since the soil sample is blocked by the soil-fixing steel bars 7 and the soil-fixing groove 8, the soil sample is easier to be pulled out together with the sampling tube 1. Finally, the staff can first remove the soil-fixing steel bars 7, then hold the second handle 15, and push the push rod 4 so that the bulldozer 6 pushes the soil sample out from the bottom of the sampling tube 1.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A soil sampler for soil pollution prevention and control, characterized in that: The invention comprises a sampling tube (1) and a core tube (2), wherein the sampling tube (1) is arranged in a circular cylindrical shape and has a hollow interior, the upper end of the sampling tube (1) is provided with a communication port and the lower end is provided through, the core tube (2) is also arranged in a circular cylindrical shape and has a hollow interior, the upper end and the lower end of the core tube (2) are both provided through, the core tube (2) and the sampling tube (1) are coaxially connected and fixed, and the core tube (2) and the sampling tube (1) are connected through the communication port, the upper end of the core tube (2) is provided with a communication port, and the upper end of the core tube (2) is provided with a communication port. A first handle (14) is provided, a push rod (4) is provided in the core tube (2), the upper end of the push rod (4) extends out of the core tube (2) and is provided with a second handle (15), the lower end of the push rod (4) extends into the sampling tube (1), a bulldozer plate (6) is provided at the lower end of the push rod (4), the bulldozer plate (6) and the inner wall of the sampling tube (1) are adapted, and the lower end of the sampling tube (1) is provided with soil-fixing steel bars (7) along the circumferential direction on the inner wall of the sampling tube (1).

2. A soil sampler for soil pollution prevention and control as claimed in claim 1, characterized in that: The inner wall of the sampling tube (1) is provided with a plurality of soil-fixing grooves (8) for soil to be embedded.

3. A soil sampler for soil pollution prevention and control as claimed in claim 2, characterized in that: The soil consolidation groove (8) is configured to have a structure with a wide groove body and a narrow groove opening.

4. A soil sampler for soil pollution prevention and control as claimed in claim 1, characterized in that: The lower end of the sampling tube (1) is provided with a mounting groove (9) on the inner wall of the sampling tube (1) along the circumferential direction, a mounting ring plate (10) is embedded in the mounting groove (9), the soil-fixing steel bars (7) are fixed on the mounting ring plate (10), and the mounting ring plate (10) and the sampling tube (1) are fixed by screws (11).

5. A soil sampler for soil pollution prevention and control as claimed in claim 1, characterized in that: The upper end of the sampling tube (1) is provided with an internal spiral tube (3) at the connecting port, and the lower end of the core tube (2) is provided with an external spiral tube (5). The internal spiral tube (3) is arranged inside the external spiral tube (5), and the internal spiral tube (3) and the external spiral tube (5) are threadedly connected.

6. A soil sampler for soil pollution prevention and control as claimed in claim 5, characterized in that: The sampling cylinder (1) is composed of a left half cylinder (101) and a right half cylinder (102); the internal spiral tube (3) is composed of a left half tube (31) and a right half tube (32); the left half cylinder (101) and the left half tube (31) are an integrated structure; the right half cylinder (102) and the right half tube (32) are an integrated structure.

7. A soil sampler for soil pollution prevention and control as claimed in claim 1, characterized in that: The lower end of the sampling cylinder (1) is provided with a guiding inclined surface (12) along the circumferential direction on the outer wall of the sampling cylinder (1).

8. The soil sampler for soil pollution prevention and control according to claim 1, characterized in that: The first handle (14) and the second handle (15) are both provided with a silicone sleeve (13).

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