Soil sampling device for ecological environment monitoring

Abstract

The invention discloses a soil sampling device for ecological environment monitoring, which comprises a balance support body and a drilling cylinder body, through holes are symmetrically formed in the outer part of the drilling cylinder body, soil sampling cylinders capable of automatically separating soil samples are symmetrically arranged in the drilling cylinder body, and each soil sampling cylinder comprises a cylinder with a bottom and a sampling cylinder, a soil sample inlet is formed in the end, away from the bottomed cylinder, of the sampling cylinder, self-separation plates are symmetrically arranged in the soil sample inlet, a pushing piece is further arranged in the drilling cylinder and comprises a conical pushing block, and sliding chutes are symmetrically formed in the outer portion of the conical pushing block; a connecting sliding block fixedly connected with the bottom cylinder is slidably connected into the sliding chute, and a plugging piece is arranged outside the through opening and comprises a plugging plate. According to the soil sampling device, the soil sampling barrel can extend out of the through hole for sampling by pressing down the push rod, and the sampled soil sample can be automatically separated by the two self-separation plates, so that the soil sample at the target depth can be effectively collected.

Description

Technical Field

[0001] The present invention relates to the technical field of soil sampling, and in particular to a soil sampling device for ecological environment monitoring. Background Art

[0002] Ecological environment monitoring refers to the activities of environmental monitoring agencies to monitor and measure the environmental quality status, which is convenient for detecting the pollution status of the environment and the level of environmental quality. The media objects of ecological environment monitoring can be roughly divided into water quality monitoring, air monitoring, soil monitoring, solid waste monitoring, biological monitoring, physical monitoring, etc. Among them, soil monitoring requires the use of a soil sampling cylinder to sample the soil at different depths in the monitoring area to understand the quality of the soil in the monitoring area.

[0003] After retrieval, the invention patent with the Chinese patent number CN 113029644 B discloses a soil sampling device for ecological environment monitoring, including a drilling cylinder, a drill bit is provided at the lower end of the drilling cylinder, a spiral chip discharge groove and a spiral cutting edge are provided on the side wall of the drilling cylinder, the inside of the drilling cylinder is a hollow structure, and a soil sample inlet is opened at the lower end of the cylinder wall of the drilling cylinder; a drilling handle is provided at the upper end of the drilling cylinder; a soil sample sampling mechanism. Compared with the prior art, the invention patent with the Chinese patent number CN113029644 B realizes the purpose of effectively collecting soil samples at the target sampling point through as few structural components and as few operation steps as possible, and its operation is simple and very suitable for carrying to the field for soil sampling operations at a specific depth.

[0004] However, in the actual use process of the above-mentioned soil sampling device for ecological environment monitoring, after the drilling hole is formed by drilling the drilling cylinder, the soil on the inner wall of the drilling hole may be compacted due to the extrusion force, and the compacted soil is difficult to enter the soil sample inlet independently, resulting in a small amount of soil entering the soil sample inlet, thus leading to a low soil sampling efficiency. Therefore, a soil sampling device for ecological environment monitoring that can effectively collect soil samples at the target depth is needed. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that in the prior art, the soil on the inner wall of the drilling hole may be compacted due to the extrusion force, and the compacted soil is difficult to enter the soil sample inlet independently, resulting in a low soil sampling efficiency, and to propose a soil sampling device for ecological environment monitoring.

[0006] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0007] An ecological environment monitoring soil sampling device, comprising a balance support body and a drilling cylinder arranged outside the balance support body. The outside of the drilling cylinder is symmetrically provided with through openings. Inside the drilling cylinder, soil sampling cylinders capable of autonomously separating soil samples are symmetrically arranged. The soil sampling cylinder comprises a bottomed cylinder and a sampling cylinder which are detachably connected to each other. One end of the sampling cylinder away from the bottomed cylinder is provided with a soil sample inlet. Inside the soil sample inlet, self-separating plates are symmetrically arranged. Inside the drilling cylinder, a pushing member for pushing the two soil sampling cylinders on both sides is further arranged. The pushing member comprises a conical pushing block slidably connected inside the drilling cylinder. The cross-sectional area of the top of the conical pushing block is larger than that of its bottom. The outside of the conical pushing block is symmetrically provided with sliding inclined grooves. Inside the sliding inclined grooves, connecting sliders fixedly connected to the bottomed cylinder are slidably connected. Outside the through openings, a blocking member for blocking the sampling cylinder is provided. The blocking member comprises a blocking plate arranged outside the through openings;

[0008] By pressing down the push rod, the soil sampling cylinder can extend out of the through opening for sampling, and the soil sample after sampling can be autonomously separated by the two self-separating plates, so that the soil sample at the target depth can be effectively collected.

[0009] The above technical solution further includes:

[0010] The balance support body comprises two L-shaped balance plates for balancing. A top connecting plate is slidably connected to the outside of the two balance support bodies. Electro-hydraulic push rods are symmetrically installed between the two balance support bodies and the top connecting plate; during the process of the drilling cylinder drilling into the soil, the electro-hydraulic push rods can be started to slowly shorten.

[0011] A bearing and a driving motor are installed at the bottom of the top connecting plate. The top of the drilling cylinder is fixedly connected to the inner ring of the bearing. A connecting gear ring is fixedly connected to the outside of the drilling cylinder. The output end of the driving motor is fixedly connected to a driving gear meshing with the connecting gear ring; by starting the driving motor to drive the driving gear to rotate, the connecting gear ring can be driven to drive the drilling cylinder to rotate.

[0012] An internal thread cylinder is fixedly connected to the end of the bottomed cylinder, and an external thread cylinder is fixedly connected to the end of the sampling cylinder. The internal thread cylinder is threadedly connected to the outside of the external thread cylinder; that is, the bottomed cylinder and the sampling cylinder are detachably connected through the internal thread cylinder and the external thread cylinder.

[0013] Limiting blocks are symmetrically and fixedly connected to the inner side of the soil sample inlet. The limiting blocks are used to prevent the self-separating plates from deflecting outwards; that is, the two self-separating plates can only deflect inwards or reset outwards.

[0014] On the inner side of the soil sample inlet, grooves are symmetrically formed. A connecting shaft A is fixedly connected inside the grooves. The self-separating plate is rotatably connected to the outside of the connecting shaft A. Between both sides of the self-separating plate and both ends of the grooves, a return torsion spring A sleeved on the outside of the connecting shaft A is fixedly connected; in the initial state, the two self-separating plates are deflected inward and in contact with each other, and are located between the two long abutting plates.

[0015] On the inner wall of the bottomed cylinder, damping chutes are symmetrically formed. An L-shaped damping slider is slidably connected inside the damping chutes. The end of the L-shaped damping slider is fixedly connected with a semi-circular abutting plate. On the outside of the semi-circular abutting plate, a long abutting plate abutting against the outside of the self-separating plate is fixedly connected; when the sampling cylinder extends out, the soil sample can enter the inside of the sampling cylinder through the soil sample inlet and abut against the semi-circular abutting plate, so that the long abutting plate is separated from the self-separating plate, and thus the two self-separating plates are reset outward to separate the soil sample.

[0016] The bottom of the conical pushing block is fixedly connected with a circular connecting block slidably connected inside the drilling cylinder body through a connecting rod. A return spring is fixedly connected between the circular connecting block and the drilling cylinder body. The top of the conical pushing block is fixedly connected with a pushing rod extending above the top connecting plate; by pushing the pushing rod, the conical pushing block can move downward and drive the sampling cylinder to extend out from the through hole for sampling.

[0017] The blocking member further includes mounting plates symmetrically and fixedly connected to the outside of the drilling cylinder body. A connecting shaft B is fixedly connected between the two mounting plates on both sides. The blocking plate is rotatably connected to the outside of the connecting shaft B. Between both sides of the blocking plate and the two mounting plates on both sides, a return torsion spring B sleeved on the outside of the connecting shaft B is fixedly connected; when the sampling cylinder extends out from the through hole, the sampling cylinder can abut against and open the blocking plate, and when the sampling cylinder is retracted into the through hole, the return torsion spring B can be reset to close the blocking plate.

[0018] The present invention has the following beneficial effects:

[0019] 1. In the present invention, by pressing down the pushing rod to drive the conical pushing block to move downward, the conical pushing block drives the sampling cylinder to extend out through the sliding inclined groove and the connecting slider, so that the extended sampling cylinder pierces into the inner wall of the drilling hole for sampling. The soil sample entering the inside of the sampling cylinder will push the semi-circular abutting plate to move and drive the two long abutting plates to be separated from the two self-separating plates, and the two self-separating plates are reset outward to separate the soil sample, that is, the soil sample after sampling can be autonomously separated, so that the soil sample at the target depth can be effectively collected.

[0020] 2. In the present invention, by pressing down the push rod, the sampling cylinder extends out from the through opening and opens the sealing plate, and then by rotating the sampling cylinder to disengage it from the bottomed cylinder, the soil sample inside the sampling cylinder can be taken out for subsequent monitoring work, and the operation of taking out the soil sample inside the sampling cylinder is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a soil sampling device for ecological environment monitoring proposed by the present invention;

[0022] Figure 2 FIG. 2 is a schematic diagram of a partial structure of a soil sampling device for ecological environment monitoring proposed by the present invention;

[0023] Figure 3 FIG. 3 is a schematic diagram of the internal structure of the drilling cylinder in the present invention;

[0024] Figure 4 FIG. 4 is Figure 3 an enlarged schematic diagram of the structure at A in FIG. 3;

[0025] Figure 5 FIG. 5 is a schematic diagram of the internal structure of the soil sampling cylinder in the present invention;

[0026] Figure 6 FIG. 6 is a schematic sectional structure diagram of the soil sampling cylinder in the present invention;

[0027] Figure 7 FIG. 7 is Figure 6 an enlarged schematic diagram of the structure at B in FIG. 6.

[0028] In the figures: 1. Balanced support body; 11. L-shaped balance plate; 12. Top connection plate; 13. Electro-hydraulic push rod; 2. Drilling cylinder; 3. Through opening; 4. Soil sampling cylinder; 41. Bottomed cylinder; 42. Sampling cylinder; 43. Soil sample inlet; 44. Self-separating plate; 45. Internal thread cylinder; 46. External thread cylinder; 47. Limit block; 48. Groove; 49. Connecting shaft A; 50. Return torsion spring A; 51. Damping chute; 52. L-shaped damping slider; 53. Semi-circular abutting plate; 54. Long abutting plate; 6. Pushing member; 61. Conical pushing block; 62. Sliding inclined groove; 63. Connecting slider; 64. Connecting rod; 65. Circular connecting block; 66. Return spring; 67. Push rod; 7. Sealing member; 71. Sealing plate; 72. Mounting plate; 73. Connecting shaft B; 74. Return torsion spring B; 8. Bearing; 9. Driving motor; 10. Connecting gear ring; 14. Driving gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] As Figures 1-7 shown, a soil sampling device for ecological environment monitoring proposed by the present invention includes a balance support body 1 and a drilling cylinder 2 arranged outside the balance support body 1. The balance support body 1 includes two L-shaped balance plates 11 for balancing. A top connection plate 12 is slidably connected to the outside of the two balance support bodies 1. Electro-hydraulic push rods 13 are symmetrically installed between the two balance support bodies 1 and the top connection plate 12. During the process of the drilling cylinder 2 drilling into the soil, the electro-hydraulic push rods 13 can be started to slowly shorten. A bearing 8 and a driving motor 9 are installed at the bottom of the top connection plate 12. The top of the drilling cylinder 2 is fixedly connected to the inner ring of the bearing 8. A connecting gear ring 10 is fixedly connected to the outside of the drilling cylinder 2. The output end of the driving motor 9 is fixedly connected to a driving gear 14 meshing with the connecting gear ring 10. By starting the driving motor 9 to drive the driving gear 14 to rotate, the connecting gear ring 10 can drive the drilling cylinder 2 to rotate.

[0031] Through holes 3 are symmetrically opened on the outside of the drilling cylinder 2. Soil sampling cylinders 4 capable of autonomously separating soil samples are symmetrically arranged inside the drilling cylinder 2. The soil sampling cylinder 4 includes a bottomed cylinder 41 and a sampling cylinder 42 that are detachably connected to each other. An internal thread cylinder 45 is fixedly connected to the end of the bottomed cylinder 41. An external thread cylinder 46 is fixedly connected to the end of the sampling cylinder 42. The internal thread cylinder 45 is threadedly connected to the outside of the external thread cylinder 46, that is, the bottomed cylinder 41 and the sampling cylinder 42 are detachably connected through the internal thread cylinder 45 and the external thread cylinder 46. A soil sample inlet 43 is arranged at one end of the sampling cylinder 42 away from the bottomed cylinder 41. Self-separating plates 44 are symmetrically arranged inside the soil sample inlet 43. Limit blocks 47 are symmetrically and fixedly connected to the inner side of the soil sample inlet 43. The limit blocks 47 are used to prevent the self-separating plates 44 from deflecting outwards, that is, the two self-separating plates 44 can only deflect inwards or reset outwards.

[0032] On the inner side of the soil sample inlet 43, grooves 48 are symmetrically provided. A connecting shaft A49 is fixedly connected inside the groove 48. The self-separating plate 44 is rotatably connected to the outside of the connecting shaft A49. A return torsion spring A50 sleeved on the outside of the connecting shaft A49 is fixedly connected between both sides of the self-separating plate 44 and both ends of the groove 48. In the initial state, the two self-separating plates 44 deflect inward and contact each other, and are located between the two long abutting plates 54. Damping chutes 51 are symmetrically provided on the inner wall of the bottomed cylinder 41. An L-shaped damping slider 52 is slidably connected inside the damping chute 51. The end of the L-shaped damping slider 52 is fixedly connected with a semi-circular abutting plate 53. The outside of the semi-circular abutting plate 53 is fixedly connected with a long abutting plate 54 that abuts against the outside of the self-separating plate 44. When the sampling cylinder 42 extends out, the soil sample will enter the inside of the sampling cylinder 42 through the soil sample inlet 43 and abut against the semi-circular abutting plate 53, so that the semi-circular abutting plate 53 drives the long abutting plate 54 to separate from the self-separating plate 44, thereby causing the two self-separating plates 44 to reset outward to separate the soil sample;

[0033] Inside the drilling cylinder 2, a pushing member 6 for pushing the soil sampling cylinders 4 on both sides is further provided. The pushing member 6 includes a conical pushing block 61 slidably connected inside the drilling cylinder 2. The cross-sectional area of the top of the conical pushing block 61 is larger than that of its bottom. Sliding inclined grooves 62 are symmetrically provided on the outside of the conical pushing block 61. A connecting slider 63 fixedly connected to the bottomed cylinder 41 is slidably connected inside the sliding inclined groove 62. The bottom of the conical pushing block 61 is fixedly connected with a circular connecting block 65 slidably connected inside the drilling cylinder 2 through a connecting rod 64. A return spring 66 is fixedly connected between the circular connecting block 65 and the drilling cylinder 2. The top of the conical pushing block 61 is fixedly connected with a pushing rod 67 extending above the top connecting plate 12. By pushing the pushing rod 67, the conical pushing block 61 can move downward and drive the sampling cylinder 42 to extend out from the through port 3 through the sliding inclined groove 62 and the connecting slider 63 for sampling;

[0034] Outside the through port 3, a blocking member 7 for blocking the sampling cylinder 42 is provided. The blocking member 7 includes a blocking plate 71 provided outside the through port 3. The blocking member 7 further includes mounting plates 72 symmetrically and fixedly connected to the outside of the drilling cylinder 2. A connecting shaft B73 is fixedly connected between the two mounting plates 72 on both sides. The blocking plate 71 is rotatably connected to the outside of the connecting shaft B73. A return torsion spring B74 sleeved on the outside of the connecting shaft B73 is fixedly connected between both sides of the blocking plate 71 and the two mounting plates 72 on both sides. When the sampling cylinder 42 extends out from the through port 3, the sampling cylinder 42 can abut against and open the blocking plate 71. When the sampling cylinder 42 is retracted into the through port 3, the return torsion spring B74 can reset to close the blocking plate 71.

[0035] In this embodiment: First, the drilling cylinder 2 is fixedly placed above the target depth through the balance support body 1. Subsequently, the driving motor 9 and the electro-hydraulic push rod 13 are started. The driving motor 9 starts to drive the driving gear 14 to rotate. The rotation of the driving gear 14 causes the connecting gear ring 10 to drive the drilling cylinder 2 to rotate. The electro-hydraulic push rod 13 starts to make the top connecting plate 12 drive the drilling cylinder 2 to move downward, so that the drilling cylinder 2 drills downward into the soil. In the initial state, both soil sampling cylinders 4 are located obliquely below the conical pushing block 61. Both self-separating plates 44 are deflected into the sampling cylinder 42 and contact each other, and the two mutually contacting self-separating plates 44 are located between the two long abutting plates 54. At the same time, both blocking plates 71 block the outside of the through hole 3;

[0036] When the drilling cylinder 2 drills into the soil at the target depth, press down the push rod 67 to drive the conical pushing block 61, the connecting rod 64 and the circular connecting block 65 to move downward and compress the return spring 66. The downward moving conical pushing block 61 will drive the sampling cylinders 42 on both sides to extend out from the through hole 3 through the sliding chute 62 and the connecting slider 63. The sampling cylinder 42 extending out from the through hole 3 will abut and open the blocking plate 71 (the blocking plate 71 is opened, and the return torsion spring B74 deforms) and plunge into the inner wall of the drilling hole for sampling. The soil sample will enter the inside of the sampling cylinder 42 through the soil sample inlet 43. The soil sample entering the inside of the sampling cylinder 42 will contact the semi-circular abutting plate 53 and push it towards the direction close to the bottomed cylinder 41, so that the L-shaped damping slider 52 slides inside the damping chute 51, and the two long abutting plates 54 are separated from the self-separating plate 44, so that the deformed return torsion spring A50 drives the two self-separating plates 44 to reset outward to separate the soil sample;

[0037] Subsequently, release the push rod 67, and the compressed return spring 66 will drive the circular connecting block 65, the connecting rod 64, the conical pushing block 61 and the push rod 67 to reset. The reset conical pushing block 61 will drive the sampling cylinders 42 on both sides to be retracted into the inside of the drilling cylinder 2 from the through hole 3 through the sliding chute 62 and the connecting slider 63, and the deformed return torsion spring B74 drives the blocking plate 71 to reset and close;

[0038] Subsequently, turn off the driving motor 9 and start the electro-hydraulic push rod 13 to extend, so that the top connecting plate 12 drives the drilling cylinder 2 to move upward out of the drilling hole. Then press down the push rod 67 to make the sampling cylinder 42 extend out from the through hole 3 and open the blocking plate 71. Subsequently, rotate the sampling cylinder 42 to separate it from the bottomed cylinder 41, and the soil sample inside the sampling cylinder 42 can be taken out for subsequent monitoring work;

[0039] The geological stratification portable sampling instrument for local geological prospecting can make the soil sampling cylinder 4 extend out of the through port 3 by pressing down the push rod 67, and the soil samples after sampling can be automatically separated by two self-separating plates 44, so that the soil samples at the target depth can be effectively collected.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil sampling device for ecological environment monitoring, comprising a balance support body (1) and a drilling cylinder (2) arranged outside the balance support body (1), characterized in that: The outside of the drilling cylinder (2) is symmetrically provided with through openings (3). Inside the drilling cylinder (2), soil sampling cylinders (4) capable of autonomously separating soil samples are symmetrically arranged. The soil sampling cylinder (4) includes a bottomed cylinder (41) and a sampling cylinder (42) that are detachably connected to each other. One end of the sampling cylinder (42) away from the bottomed cylinder (41) is provided with a soil sample inlet (43). Inside the soil sample inlet (43), self-separating plates (44) are symmetrically arranged. Inside the drilling cylinder (2), a pushing member (6) for pushing the soil sampling cylinders (4) on both sides is also arranged. The pushing member (6) includes a conical pushing block (61) slidably connected inside the drilling cylinder (2). The cross-sectional area of the top of the conical pushing block (61) is larger than that of its bottom. The outside of the conical pushing block (61) is symmetrically provided with sliding inclined grooves (62). Inside the sliding inclined grooves (62), connecting sliders (63) fixedly connected to the bottomed cylinder (41) are slidably connected. Outside the through opening (3), a blocking member (7) for blocking the sampling cylinder (42) is arranged. The blocking member (7) includes a blocking plate (71) arranged outside the through opening (3).

2. The soil sampling device for ecological environment monitoring according to claim 1, characterized in that: The balance support body (1) includes two L-shaped balance plates (11) for balancing. A top connecting plate (12) is slidably connected to the outside of the two balance support bodies (1). Electro-hydraulic push rods (13) are symmetrically installed between the two balance support bodies (1) and the top connecting plate (12).

3. An ecological environment monitoring soil sampling device according to claim 2, characterized in that: A bearing (8) and a driving motor (9) are installed at the bottom of the top connecting plate (12). The top of the drilling cylinder (2) is fixedly connected to the inner ring of the bearing (8). A connecting gear ring (10) is fixedly connected to the outside of the drilling cylinder (2). The output end of the driving motor (9) is fixedly connected to a driving gear (14) meshing with the connecting gear ring (10).

4. The soil sampling device for ecological environment monitoring according to claim 1, wherein: The end of the bottomed cylinder (41) is fixedly connected with an internal thread cylinder (45). The end of the sampling cylinder (42) is fixedly connected with an external thread cylinder (46). The internal thread cylinder (45) is threadedly connected to the outside of the external thread cylinder (46).

5. The soil sampling device for ecological environment monitoring according to claim 1, characterized in that: Limiting blocks (47) are symmetrically and fixedly connected to the inner side of the soil sample inlet (43). The limiting blocks (47) are used to prevent the self-separating plates (44) from deflecting outwards.

6. The soil sampling device for ecological environment monitoring according to claim 1, characterized in that: Grooves (48) are also symmetrically opened on the inner side of the soil sample inlet (43). A connecting shaft A (49) is fixedly connected inside the grooves (48). The self-separating plates (44) are rotatably connected to the outside of the connecting shaft A (49). Reset torsion springs A (50) sleeved on the outside of the connecting shaft A (49) are fixedly connected between both sides of the self-separating plates (44) and both ends of the grooves (48).

7. An ecological environment monitoring soil sampling device according to claim 1, characterized in that: The inner wall of the bottom cylinder (41) is symmetrically provided with damping sliding grooves (51). An L-shaped damping slider (52) is slidably connected inside the damping sliding grooves (51). The end of the L-shaped damping slider (52) is fixedly connected with a semi-circular abutting plate (53). The outer side of the semi-circular abutting plate (53) is fixedly connected with a long abutting plate (54) that abuts against the outer side of the self-separating plate (44).

8. The soil sampling device for ecological environment monitoring according to claim 2, characterized in that: The bottom of the conical pushing block (61) is fixedly connected with a circular connecting block (65) that is slidably connected inside the drilling cylinder (2) through a connecting rod (64). A return spring (66) is fixedly connected between the circular connecting block (65) and the drilling cylinder (2). The top of the conical pushing block (61) is fixedly connected with a pushing rod (67) that extends above the top connecting plate (12).

9. The soil sampling device for ecological environment monitoring according to claim 1, characterized in that: The plugging member (7) further includes mounting plates (72) symmetrically and fixedly connected to the outer side of the drilling cylinder (2). A connecting shaft B (73) is fixedly connected between the two mounting plates (72). The plugging plate (71) is rotatably connected to the outside of the connecting shaft B (73). Return torsion springs B (74) sleeved on the outside of the connecting shaft B (73) are fixedly connected between the two sides of the plugging plate (71) and the two mounting plates (72).

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