A soil sampling device for detecting contaminated sites

Abstract

The present invention discloses a soil detection sampling device for a contaminated site, and relates to the technical field of soil detection sampling. The present invention comprises a cart, on which a driving mechanism and a starting assembly are installed, on which a top plate is installed, and on the right end of the top plate, a straight groove rod is movably sleeved internally. The present invention drives the straight groove rod to rotate through a gear ring, so that the straight groove rod drives the track block to rotate along the thread groove of the internal thread groove barrel and the groove of the straight groove rod in turn, thereby causing the circular slice to perform layered cutting of the sampled soil block, so as to avoid mixing of multiple layers of soil during sampling, thereby affecting the detection data, and at the same time, causing the circular slice to drive the pushing block and the semicircular groove to drive the sampling barrel and the cut soil block to rotate, until the cut soil block is separated from the upper layer of the sampling barrel and the pushing block, and then the cut soil block can be easily taken out from the inside of the sampling barrel, thereby achieving the purpose of layered sampling of soil and convenient removal.

Description

Technical Field

[0001] The invention relates to the technical field of soil detection and sampling equipment, and in particular to a soil detection and sampling device for a contaminated site. Background Art

[0002] With the development of society, land is often contaminated by various pollutants, including chemical fertilizers, metal waste, etc., and the degree of pollution is different. It is difficult for the soil itself to purify itself. These contaminated soils are washed into rivers by rainwater, which can easily cause river pollution.

[0003] A Chinese patent (application number: CN202220214181.8) discloses a soil sampling device for a hydrogeological contaminated site, comprising a bottom plate, on the top surface of which two symmetrically distributed vertical plates are fixed; a sampling barrel located on the inner side of the two vertical plates and arranged to be rotatable and movable in the longitudinal direction; a square rod movable in the longitudinal direction is installed in the sampling barrel; four flip connecting arms equally spaced in the circumferential direction are also included, and a leak-proof rod is hinged on the square rod; the soil sampling device of the utility model uses a sampling barrel arranged to be rotatable and movable in the longitudinal direction for soil sampling, and combines the square rod and the cone head to greatly improve the reliability of sampling, ensuring that the sampling barrel can reliably drill into the contaminated site for sampling, and at the same time combines four flip-type leak-proof rods, while ensuring reliable sampling, the flipped and released leak-proof rods can prevent the taken soil from falling from the sampling barrel, ensuring the integrity of the soil and improving the accuracy of detection.

[0004] This patent and the prior art have the following technical problems in actual use:

[0005] 1. During the use of the sampling device, the sampled soil cannot be layered, so that the operator is likely to mix multiple layers of soil during sampling, which in turn causes inaccurate subsequent test data.

[0006] 2. When the sampling device is in use, the sampled soil adheres to the sampling tube, so that the operator cannot conveniently take the soil out of the sampling tube. Summary of the invention

[0007] The purpose of the present invention is to solve the above problems and provide a soil sampling device for contaminated sites.

[0008] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0009] A soil detection sampling device for a contaminated site comprises a cart, a driving mechanism and a starting assembly are installed on the cart, a top plate is installed on the driving mechanism, a straight groove rod is movably sleeved inside the right end of the top plate, a gear ring is fixedly sleeved on the upper end of the straight groove rod, a limited circular block is fixedly connected to the lower end of the straight groove rod, the straight groove rod is limitedly sleeved with a circular cutting cylinder through the limited circular block, a plurality of internal threaded groove cylinders located between the circular cutting cylinder and the top plate are movably sleeved on the outer surface of the straight groove rod, the thread grooves between the plurality of internal threaded groove cylinders are staggered, and the plurality of internal threaded groove cylinders are staggered. Annular slices are fixed to the outer surface of the lower end of the threaded groove barrel, and sampling barrels in contact with the circular slices are movably sleeved on the outer surfaces of the upper ends of the multiple internal threaded groove barrels. Semicircular grooves are opened inside the multiple sampling barrels, and the inner movably sleeves of the semicircular grooves are provided with pushing blocks fixed on the circular slices. The inner movably sleeves of the straight groove rods are provided with track blocks, and the track blocks extend into the interior of the internal threaded groove barrel. The starting assembly includes a second motor installed on the driving mechanism, and the other end of the output shaft of the second motor is fixedly connected to a half gear located on the left side of the gear ring.

[0010] Furthermore, the driving mechanism includes a first electric telescopic rod fixed on the trolley, the lower end of the first electric telescopic rod is fixedly connected to a moving block, the lower end of the first electric telescopic rod is installed with a telescopic assembly of a limited sampling tube, the bottom of the moving block is fixedly connected to the top of the second motor, the left and right ends of the top of the moving block are respectively fixedly connected to the limiting rod, the upper end of the limiting rod passes through the trolley and is movably connected to the inner wall of the trolley, the bottom of the moving block is fixedly connected to the first motor, and the other end of the output shaft of the first motor is transmission-connected to the top plate.

[0011] Furthermore, the telescopic assembly includes a fixed block fixed to the lower end of the first electric telescopic rod, the fixed block is fixedly connected to the second electric telescopic rod, the lower end of the second electric telescopic rod is fixed with a circular groove block, the internal movable sleeve of the circular groove block is provided with a limiting rod, the lower end of the limiting rod sequentially penetrates the top plate, the sampling cylinder and the circular slice and extends to the inside of the circular cutting cylinder.

[0012] Furthermore, the inner surface of the circular cutting cylinder is provided with an inwardly inclined slope, and the slope surface is smooth.

[0013] Furthermore, the sampling tube is provided with side grooves in an equidistant manner in an annular shape inside, and a ball is sleeved inside the side groove to limit the position.

[0014] Furthermore, a notch is provided inside the sampling barrel, the other end of the notch is communicated with the side groove, and the other end of the notch is communicated with the opening of the limiting rod penetrating the sampling barrel.

[0015] Furthermore, a rigid spring is fixedly connected to the sphere, and the other end of the rigid spring is fixedly connected to the inner wall of the side groove.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention drives the straight groove rod to rotate through the gear ring, so that the straight groove rod drives the track block to rotate along the thread groove of the internal thread groove barrel and the groove of the straight groove rod in turn, so that the circular slice is cut into layers for the sampled soil block to avoid mixing of multiple layers of soil during sampling, which affects the detection data. At the same time, the circular slice drives the pushing block and the semicircular groove to drive the sampling barrel and the cut soil block to rotate until the cut soil block is separated from the upper sampling barrel and the pushing block and stops. Then, the cut soil block can be easily taken out from the inside of the sampling barrel, thereby achieving the purpose of layered sampling of soil and convenient removal.

[0018] 2. The present invention starts the first motor, so that the top plate drives the annular slice and sampling tube and the circular cutting tube to rotate through the limiting plug rod and the straight groove rod. At the same time, due to the operation of the first electric telescopic rod, the moving block drives the first motor to move downward as a whole, so that the circular cutting tube rotates downward to cut the soil, and squeezes the soil into the inside of the annular slice and sampling tube for sampling. Such a design enables the device to cut and sample harder soil, thereby achieving the purpose of automatically rotating and sampling the soil.

[0019] 3. The present invention adopts the design of the inclined surface of the circular cutting cylinder, so that the circular cutting cylinder can press the loose soil into the circular slice and the inside of the sampling cylinder when cutting the soil downwards. When the limiting plug rod is inserted into the interior of the sampling cylinder, the air inside the sampling cylinder will be compressed into the notch and the inside of the side groove, so that the gas squeezes the ball to fit tightly against the inner wall of the side groove, so that the protruding ball squeezes and fixes the soil inside the sampling cylinder. At the same time, the circular slice can be rotated to the middle of the upper soil block to block it, so as to prevent the soil inside the sampling cylinder from collapsing and falling toward the middle. When the sampling cylinder drives the soil to rotate, the rigid spring squeezes the ball and the cut soil block to increase the friction, so as to prevent the soil block from falling when the sampling cylinder rotates. Such a design enables the device to squeeze and sample relatively soft soil and prevent the sampled soil block from falling, thereby ensuring the integrity of the sampled soil block. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the present invention;

[0021] Figure 2 is a schematic diagram of a sampling tube of the present invention;

[0022] Figure 3 It is a cross-sectional schematic diagram of the circular cut barrel of the present invention;

[0023] Figure 4 is a schematic diagram of the circular slice and sampling tube of the present invention;

[0024] Figure 5 It is a schematic diagram of a partial explosion of a circular slice and a sampling tube of the present invention;

[0025] Figure 6 It is a top view half-section schematic diagram of the sampling tube of the present invention;

[0026] Figure 7 is a schematic diagram of a straight slot rod of the present invention;

[0027] Figure 8 It is a schematic diagram of the internally threaded grooved barrel of the present invention;

[0028] Fig. 9 The present invention Figure 2 A partial enlarged schematic diagram in the middle;

[0029] Fig.10 The present invention Figure 6 A partial enlarged schematic diagram of point B in the middle;

[0030] Fig.11 The present invention Figure 7 A partial enlarged schematic diagram of .

[0031] Figure numerals: 1. trolley; 2. first electric telescopic rod; 3. moving block; 4. limiting rod; 5. first motor; 6. top plate; 7. straight groove rod; 8. track block; 9. gear ring; 10. limiting circular block; 11. circular cutting cylinder; 12. circular slice; 13. internal thread groove cylinder; 14. sampling cylinder; 15. semicircular groove; 16. pushing block; 17. second motor; 18. half gear; 19. fixed block; 20. second electric telescopic rod; 21. circular groove block; 22. limiting plug rod; 23. notch; 24. round ball; 25. rigid spring; 26. side groove. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] Embodiment 1, as Figure 1-11As shown, a soil detection sampling device for contaminated sites includes a cart 1, characterized in that a driving mechanism and a starting assembly are installed on the cart 1, a top plate 6 is installed on the driving mechanism, a straight groove rod 7 is movably sleeved inside the right end of the top plate 6, a gear ring 9 is fixedly sleeved on the upper end of the straight groove rod 7, a limited circular block 10 is fixedly connected to the lower end of the straight groove rod 7, the straight groove rod 7 is limitedly sleeved with a circular cutting cylinder 11 through the limited circular block 10, the outer surface of the straight groove rod 7 is movably sleeved with a plurality of internal threaded groove cylinders 13 located between the circular cutting cylinder 11 and the top plate 6, the thread grooves between the plurality of internal threaded groove cylinders 13 are staggered, and the plurality of internal threaded grooves are staggered. The outer surface of the lower end of the cylinder 13 is respectively fixed with annular slices 12, and the outer surface of the upper end of the multiple internally threaded groove cylinders 13 is movably sleeved with a sampling cylinder 14 that contacts the annular slices 12. Semicircular grooves 15 are opened inside the multiple sampling cylinders 14, and the inner part of the semicircular grooves 15 is movably sleeved with a pushing block 16 fixed on the annular slice 12. The inner part of the straight groove rod 7 is movably sleeved with a track block 8, and one end of the track block 8 extends into the inner part of the internally threaded groove cylinder 13. The starting component includes a second motor 17 installed on the driving mechanism, and the other end of the output shaft of the second motor 17 is fixedly connected to a half gear 18 located on the left side of the gear ring 9.

[0034] By starting the second motor 17, half of the gears of the half gear 18 will drive the gear ring 9 to rotate, and the gear ring 9 will drive the straight groove rod 7 to rotate, so that the straight groove rod 7 drives the limiting round block 10 to rotate along the circular cutting cylinder 11. At this time, the round block 10 can support and block the bottom of the multiple sampling cylinders 14 and circular slices 12 on the straight groove rod 7 through the circular cutting cylinder 11, and at the same time, the gear ring 9 will block the top of the multiple sampling cylinders 14 and circular slices 12 on the straight groove rod 7 through the top plate 6, so that the circular cutting cylinder 11 and the top plate 6 can limit and block the multiple sampling cylinders 14 and circular slices 12 on the straight groove rod 7, and make the multiple sampling cylinders 14 and circular slices 12 can only move with the straight groove rod 7 as the axis. Fig.11It can be seen that there is a groove in the straight groove rod 7, and one end of the track block 8 is sleeved in the straight groove rod 7, and the other end is sleeved in the internal thread groove barrel 13. When the straight groove rod 7 rotates, the straight groove rod 7 will drive the track block 8 to rotate through the notch. Since the other end of the track block 8 is located in the spiral groove of the internal thread groove barrel 13, the straight groove rod 7 will drive the track block 8 to rotate upward or downward along the spiral groove of the internal thread groove barrel 13, and then the straight groove rod 7 will drive the track block 8 to move upward along the thread groove of the internal thread groove barrel 13. At this time, due to the screw threads between the multiple internal thread groove barrels 13 The grooves are misaligned, so that when the track block 8 moves upward, it will be blocked by another misaligned internal thread groove barrel 13, and the track block 8 cannot move upward. As the straight groove rod 7 continues to rotate, the track block 8 drives the annular slice 12 to rotate through the groove of the internal thread groove barrel 13, so that the annular slice 12 cuts the sampled soil block in layers, and at the same time, the annular slice 12 drives the push block 16 to rotate along the inner wall of the semicircular groove 15. When the annular slice 12 completely cuts the soil block, the push block 16 will rotate from one end of the semicircular groove 15 to the other end. The push block 16 contacts the side of the semicircular groove 15. As the annular slice 12 continues to rotate, the push block 16 drives the sampling barrel 14 and the cut soil block inside the sampling barrel 14 to rotate through the semicircular groove 15 until the cut soil block moves to the outside of the cart 1 and stops, so that the cut soil will not be blocked by the upper sampling barrel 14 and the push block 16. At the same time, the annular slice 12 rotates to the middle of the upper soil block and blocks it. At this time, the notches of the first internal thread groove barrel 13 and the other internal thread groove barrel 13 correspond to each other. The straight groove rod 7 continues to rotate, so that the straight groove rod 7 will drive the track block 8 to move into the groove of another internally threaded groove cylinder 13 through the groove of the straight groove rod 7 and the groove of the first internally threaded groove cylinder 13. By repeating this operation, the device can cut the sampled soil block in layers to avoid mixing of multiple layers of soil during sampling, which affects the detection data. At the same time, since the sampling cylinder 14 drives the cut soil block to move into the cart 1, the operator can easily take the cut soil block out from the sampling cylinder 14, thereby achieving the purpose of layered sampling of soil and convenient removal.

[0035] Embodiment 2, as Figure 1-9As shown, on the basis of the above embodiment, the driving mechanism includes a first electric telescopic rod 2 fixed on the cart 1, the lower end of the first electric telescopic rod 2 is fixedly connected to a moving block 3, the lower end of the first electric telescopic rod 2 is installed with a telescopic component of a limited sampling tube 14, the bottom of the moving block 3 is fixedly connected to the top of the second motor (17), the left and right ends of the top of the moving block 3 are respectively fixedly connected to the limiting rod 4, the upper end of the limiting rod 4 passes through the cart 1 and is movably connected to the inner wall of the cart 1, the bottom of the moving block 3 is fixedly connected to the first motor 5, the second motor 17 is fixedly connected to the bottom of the moving block 3, and the left and right ends of the top of the moving block 3 are respectively fixedly connected to the limiting rod 4. The other end of the output shaft of a motor 5 is transmission-connected to the top plate 6. The telescopic assembly includes a fixed block 19 fixed to the lower end of the first electric telescopic rod 2, to which the second electric telescopic rod 20 is fixedly connected. A circular groove block 21 is fixed to the lower end of the second electric telescopic rod 20. A limit rod 22 is movably sleeved inside the circular groove block 21. The lower end of the limit rod 22 sequentially penetrates the top plate 6, the sampling tube 14 and the circular slice 12 and extends to the inside of the circular cutting tube 11. The inner surface of the circular cutting tube 11 is provided with an inwardly inclined inclined surface, and the inclined surface is smooth.

[0036] After the soil is taken out, the operator starts the second motor 17, which causes half of the gears of the half gear 18 to drive the gear ring 9 to rotate, and then the gear ring 9 drives the track block 8 to move downward along the straight groove rod 7 and the internal thread groove cylinder 13 through the straight groove rod 7, and then the track block 8 drives multiple circular slices 12 and the sampling cylinder 14 to rotate and reset in sequence. At this time, half of the gears of the half gear 18 will not contact the gear ring 9. After resetting, the second electric telescopic rod 20 is started, so that the circular groove block 21 drives the limiting rod 22 to pass through the circular slice 12 and the sampling cylinder 14 in sequence until the limiting rod 22 moves to the inside of the circular cutting cylinder 11 and stops. At this time, the operator starts the first motor 5, which causes the top plate 6 to pass through the limiting rod 22 The straight groove rod 7 drives the circular slice 12 and the sampling tube 14 to rotate with the circular cutting tube 11, and makes the limiting plug rod 22 rotate along the inner wall of the circular groove block 21, and then starts the first electric telescopic rod 2, so that the moving block 3 drives the first motor 5 to move downward as a whole, so that the circular cutting tube 11 rotates downward to cut the soil. Through the design of the inclined surface of the circular cutting tube 11, when the circular cutting tube 11 cuts the soil downward, the soil can be better pressed into the circular slice 12 and the sampling tube 14 for sampling, and the inclined surface of the circular cutting tube 11 can better cut the harder soil. After sampling, the first electric telescopic rod 2 drives the first motor 5 to reset as a whole, thereby achieving the purpose of automatically rotating the sampling soil, so that the device can cut and sample harder soil.

[0037] Embodiment three, as Figure 2-10As shown, on the basis of the above embodiment, the inner ring of the sampling tube 14 is equidistantly provided with side grooves 26, the inner limiting sleeve of the side groove 26 is connected with a ball 24, a notch 23 is provided inside the sampling tube 14, the other end of the notch 23 is connected with the side groove 26, the other end of the notch 23 is connected with the opening of the limiting rod 22 passing through the sampling tube 14, a rigid spring 25 is fixedly connected to the ball 24, and the other end of the rigid spring 25 is fixedly connected to the inner wall of the side groove 26.

[0038] Due to the design of the notch 23, the ball 24 and the side groove 26, when the limiting rod 22 is inserted into the interior of the sampling tube 14, the air inside the sampling tube 14 will be compressed into the notch 23 and the side groove 26, so that the gas squeezes the ball 24 to fit closely to the inner wall of the side groove 26, so that the protruding ball 24 squeezes and fixes the soil inside the sampling tube 14. At the same time, since the annular slice can be rotated to the middle of the upper soil block for blocking (as described in the first embodiment), it is prevented from sampling. The soil inside the sample tube 14 collapses and falls toward the middle, and then when the sampling tube 14 rotates, the limiting rod 22 passes through the hole of the sampling tube 14 and escapes from the obstruction of the upper circular slice 12, so that the gas inside the side groove 26 and the notch 23 can be discharged, so that the rigid spring 25 squeezes the ball 24 to fit the cut soil block to increase the friction, so as to prevent the soil block from falling when the sampling tube 14 rotates, thereby preventing the sampled soil block from falling and ensuring the integrity of the sampled soil block.

[0039] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A soil sampling device for contaminated sites, comprising a cart (1), characterized in that: The cart (1) is provided with a driving mechanism and a starting assembly, the driving mechanism being provided with a top plate (6), the right end of the top plate (6) being internally movably sleeved with a straight groove rod (7), the upper end of the straight groove rod (7) being fixedly sleeved with a gear ring (9), the lower end of the straight groove rod (7) being fixedly connected with a limiting circular block (10), the straight groove rod (7) being limitedly sleeved with a circular cutting cylinder (11) through the limiting circular block (10), the outer surface of the straight groove rod (7) being movably sleeved with a plurality of internally threaded groove cylinders (13) located between the circular cutting cylinder (11) and the top plate (6), the thread grooves between the plurality of internally threaded groove cylinders (13) being staggered, and the outer surfaces of the lower ends of the plurality of internally threaded groove cylinders (13) being fixedly sleeved with a gear ring (9), the lower end of the plurality of internally threaded groove cylinders (13) being fixedly sleeved with a limiting circular block (10 ... A circular slice (12) is provided, and a sampling cylinder (14) in contact with the circular slice (12) is movably sleeved on the outer surface of the upper end of a plurality of internally threaded grooved cylinders (13), and a semicircular groove (15) is provided inside the plurality of sampling cylinders (14), and a pushing block (16) fixed on the circular slice (12) is movably sleeved inside the semicircular groove (15), and a track block (8) is movably sleeved inside the straight groove rod (7), and one end of the track block (8) extends into the interior of the internally threaded grooved cylinder (13), and the starting assembly comprises a second motor (17) mounted on the driving mechanism, and the other end of the output shaft of the second motor (17) is fixedly connected to a half gear (18) located on the left side of the gear ring (9).

2. A contaminated site soil detection sampling device according to claim 1, characterized in that: The driving mechanism comprises a first electric telescopic rod (2) fixed on the trolley (1), the lower end of the first electric telescopic rod (2) is fixedly connected to a moving block (3), the lower end of the first electric telescopic rod (2) is mounted with a telescopic assembly of a limited sampling tube (14), the bottom of the moving block (3) is fixedly connected to the top of a second motor (17), the left and right ends of the top of the moving block (3) are respectively fixedly connected to a limited rod (4), the upper end of the limited rod (4) passes through the trolley (1) and is movably sleeved with the inner wall of the trolley (1), the bottom of the moving block (3) is fixedly connected to a first motor (5), and the other end of the output shaft of the first motor (5) is transmission-connected to a top plate (6).

3. A contaminated site soil detection sampling device according to claim 2, characterized in that: The telescopic assembly comprises a fixed block (19) fixed to the lower end of the first electric telescopic rod (2), the fixed block (19) being fixedly connected to the second electric telescopic rod (20), the lower end of the second electric telescopic rod (20) being fixed to a circular groove block (21), the inner movably sleeved inner portion of the circular groove block (21) being provided with a limit rod (22), the lower end of the limit rod (22) sequentially passing through the top plate (6), the sampling tube (14) and the circular slice (12) and extending to the inner portion of the circular cutting tube (11).

4. The contaminated site soil detection sampling device according to claim 1, characterized in that: The inner surface of the circular cutting cylinder (11) is provided with an inwardly inclined inclined surface, and the inclined surface is smooth.

5. The contaminated site soil detection sampling device according to claim 1, characterized in that: The sampling tube (14) is provided with side grooves (26) at equal intervals in an annular shape inside, and a ball (24) is sleeved inside the side groove (26) to limit the position.

6. A contaminated site soil detection sampling device according to claim 5, characterized in that: A notch (23) is provided inside the sampling barrel (14), the other end of the notch (23) is communicated with the side groove (26), and the other end of the notch (23) is communicated with an opening of the limiting rod (22) penetrating the sampling barrel (14).

7. A contaminated site soil detection sampling device according to claim 6, characterized in that: A rigid spring (25) is fixedly connected to the sphere (24), and the other end of the rigid spring (25) is fixedly connected to the inner wall of the side groove (26).

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