Surface soil multi-point sampling equipment and method for field investigation

Abstract

The invention relates to the technical field of soil sampling, and provides surface soil multi-point sampling equipment for field reconnaissance and a method thereof.The surface soil multi-point sampling equipment for field reconnaissance comprises a material screening box, a material screening assembly, a material mixing assembly, a soil sampling mechanism and a sampling power assembly.The bottom of the material screening box is communicated with a material storage box through a material discharging bent pipe; a discharging valve is installed at the bottom of the material storage box, the material screening assembly is arranged in the material screening box and used for filtering and separating stones in soil, the material mixing assembly is arranged in the material storage box and used for mixing collected soil samples, the number of the soil sampling mechanisms is two, and the two soil sampling mechanisms are arranged on the two sides of the material screening box in a communicating mode respectively. By means of the technical scheme, the problems that in the prior art, when surface soil sampling equipment is used for sampling the ground containing a large number of pebbles, the sampling difficulty and the carrying difficulty are large are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of soil sampling, and in particular to a multi-point sampling device and method for surface soil in field survey. Background Art

[0002] The multi-point sampling equipment for surface soil in field surveys is a device specially used for sampling soil samples. Common sampling equipment includes soil drills and shovels. The soil drill is made of hard materials (such as steel or hard plastic). The drill bit is usually spiral or cylindrical, which can penetrate into the soil layer and collect soil samples of the required depth. The sampling depth is controlled by the scale engraved on the handle of the soil drill, and the shovel is often used to dig profile pits to collect profile samples or whole specimens.

[0003] Although the above-mentioned existing simple sampling equipment has good portability and is also easy to use in various sampling environments, it is susceptible to the uncertainties of manual sampling during the sampling process (such as the sampling hole is too large, causing contamination of the surface soil or soil contamination caused by contact between humans and soil), which reduces the detection accuracy of soil samples, especially in mountainous areas where a large amount of pebbles are mixed in the soil. Not only is there a problem of great difficulty in mining and easy collapse of holes, but the existing sampling equipment is also difficult to remove large-grained stones in soil samples. In order to prevent soil contamination, staff are required to carry a large amount of soil containing stones to the testing room to ensure that the testers have enough soil for testing after removing the stones. This will greatly increase the weight of the samples carried by the samplers. Sampling soil containing a large amount of stones is not only difficult to mine, but also increases the difficulty of carrying samples. Summary of the invention

[0004] The present invention provides a multi-point sampling device and method for surface soil in field survey, which is used to solve the problem mentioned in the background technology that the surface soil sampling device in the prior art has great difficulty in sampling and carrying when sampling the ground containing a large amount of stones.

[0005] The technical solution of the present invention is as follows: a multi-point sampling device for surface soil for field survey, comprising a screening box, a screening assembly, a mixing assembly, a soil sampling mechanism and a sampling power assembly;

[0006] The bottom of the screening box is connected to a storage box through a discharge elbow, and a discharge valve is installed at the bottom of the storage box;

[0007] The screening material assembly is arranged in the screening material box and is used for filtering and separating stones in the soil;

[0008] The mixing component is arranged in the storage box and is used to mix the collected soil samples;

[0009] The soil sampling mechanism is provided with two groups, and the two groups of soil sampling mechanisms are respectively connected and arranged on both sides of the screening box, and are used to sample the soil on the surface and introduce the sampled soil into the screening box;

[0010] The sampling power assembly is arranged on the two soil sampling mechanisms, and is meshed with the soil sampling mechanisms, the screening assembly and the mixing assembly to drive the screening assembly, the mixing assembly and the soil sampling assembly to move synchronously.

[0011] As a preferred technical solution of the present application, the screening material assembly includes a perforated screening material plate, a stone discharge pipe, a screening material rotating rod, a screening material scraper and a discharge material scraper;

[0012] The perforated screen plate is arranged in the screen box, and the perforated screen plate divides the screen box into a feeding area and a finishing area;

[0013] The stone discharge pipe is connected and arranged on one side of the feeding area;

[0014] The screening material rotating rod penetrates and is rotatably arranged on the screening material box and the perforated screening material plate;

[0015] The sieve scraper is arranged on the sieve rotating rod, the sieve scraper is located in the feeding area, and the sieve scraper is in contact with the upper surface of the perforated sieve plate;

[0016] The material discharging scraper is arranged on the material screening rotating rod, the material discharging scraper is located in the material forming area, and the material discharging scraper is in contact with the bottom of the material screening box.

[0017] On the basis of the above scheme, the mixing component includes a mixing rotating rod, a spiral mixing blade and a mixing transmission group;

[0018] The mixing rotating rod penetrates and is rotatably arranged on the material storage box;

[0019] The spiral mixing blade is arranged on the mixing rotating rod, and the spiral mixing blade is located in the storage box;

[0020] The mixing transmission group is arranged on the screening box, and the mixing transmission group is connected with the mixing rotating rod and the sampling power assembly.

[0021] Further on the basis of the above scheme, the mixing transmission group includes a transmission rotating rod, a bevel gear 1, a bevel gear 2, a bevel gear 3, a bevel gear 4 and a transmission protection box;

[0022] The transmission rotating rod is rotatably arranged on the screening box through a rotating seat;

[0023] The bevel gear 1 is arranged on the sampling power assembly;

[0024] The bevel gear 2 is arranged on the transmission rotating rod, and the bevel gear 2 is meshed with the bevel gear 1;

[0025] The bevel gear three is arranged on the transmission rotating rod;

[0026] The bevel gear 4 is arranged on the mixing rotating rod, and the bevel gear 4 is meshed with the bevel gear in three phases;

[0027] The transmission protection box is arranged on the screening box, and the bevel gear 1, the bevel gear 2, the bevel gear 3 and the bevel gear 4 are all located in the transmission protection box.

[0028] As the preferred technical solution of the present application, the soil sampling mechanism includes a sampling outer cylinder, a sealing plate 1, a sealing plate 2, a feeding pipe, a sampling ball nut group, a sampling reciprocating screw, a power pipe, a power cover, a sampling steering rod, a bevel gear 5, a bevel gear 6, a bevel gear 7, a sampling rotating rod, a rotating sampling cover, an extended internal gear, a rotating gear, a rodless spiral material taking blade, an underground sampling rod, an underground spiral material taking blade and a barbed annular gripping plate;

[0029] The sampling outer cylinder is arranged on one side of the storage box;

[0030] The sealing plate 1 is arranged in the sampling outer cylinder;

[0031] The second sealing plate is rotatably arranged in the sampling outer cylinder, and the second sealing plate is located below the first sealing plate. The second sealing plate and the first sealing plate sequentially divide the interior of the sampling outer cylinder into a position adjustment area, a rotation area, and a sampling area;

[0032] The material delivery pipe is arranged between the sampling area and the feeding area;

[0033] The sampling ball nut assembly penetrates and is rotatably disposed on the sealing plate 1;

[0034] The sampling reciprocating screw rod is threadedly connected in the sampling ball nut assembly;

[0035] The power tube penetrates and is rotatably arranged on the sampling outer cylinder, one end of the power tube is connected to the sampling ball nut assembly, and the sampling reciprocating screw rod is located in the power tube;

[0036] The power cover is connected to the sampling outer cylinder, and a hexagonal telescopic limit rod is connected between the power cover and the sampling reciprocating screw rod;

[0037] The sampling steering rod penetrates and is rotatably arranged on the power cover;

[0038] The bevel gear five is arranged on the sampling steering rod, and the bevel gear five is meshed with the sampling power assembly;

[0039] The bevel gear six is ​​arranged on the sampling steering rod;

[0040] The bevel gear seven is arranged on the power tube, and the bevel gear seven is meshed with the bevel gear six;

[0041] One end of the sampling rotating rod is rotatably arranged on the end of the sampling reciprocating screw rod away from the hexagonal telescopic limiting rod, and the other end of the sampling rotating rod passes through the second sealing plate;

[0042] The rotating sampling cover is arranged between the sampling ball nut assembly and the second sealing plate, the rotating sampling cover is located in the rotation area, and the sampling rotating rod is located in the rotating sampling cover;

[0043] The extended internal gear is arranged inside the rotating sampling cover;

[0044] The rotation gear is arranged on the sampling rotating rod, the rotation gear is located in the elongated internal gear, and the rotation gear is meshed with the elongated internal gear;

[0045] The rodless spiral material taking blade is arranged on the second sealing plate, the rodless spiral material taking blade is located in the sampling area, the rodless spiral material taking blade is in contact with the inner wall of the sampling outer cylinder, the sampling rotating rod is located in the rodless spiral material taking blade, and the sampling rotating rod is in contact with the rodless spiral material taking blade;

[0046] The underground sampling rod is arranged on the sampling rotating rod;

[0047] The underground spiral material taking blade is arranged on the underground sampling rod, and the underground spiral material taking blade is located inside the rodless spiral material taking blade;

[0048] The thorny annular gripping disc is arranged at the bottom of the sampling outer cylinder and is used to locate the position of the sampling outer cylinder.

[0049] On the basis of the above scheme, the sampling power assembly includes a power plate, a power rotating rod, a bevel gear eight, a power rotating disk and a gear box;

[0050] The power plate is arranged on the power cover;

[0051] The power rotating rod penetrates and is rotatably arranged on the power plate, one end of the power rotating rod is connected to the mixing rotating rod, and the bevel gear 1 is arranged on the power rotating rod;

[0052] The bevel gear eight is arranged on the power rotating rod, and the bevel gear eight is meshed with the bevel gear five;

[0053] The power turntable is arranged on the power turnbar;

[0054] The gear box is arranged on the power plate, and the bevel gear eight and the bevel gear five are both located in the gear box.

[0055] Further on the basis of the above-mentioned solution, a shoulder strap with a telescopic positioning function is provided on a side of each sampling outer cylinder away from the storage box.

[0056] A method for multi-point sampling of surface soil for field survey, using the above-mentioned multi-point sampling device for field survey of surface soil, comprises the following steps:

[0057] Step 1: Portability: The sampling personnel can carry the multi-point sampling equipment of the surface soil for field survey by carrying a shoulder strap;

[0058] Step 2: Site selection and positioning: select two sampling locations that correspond to the sampling power components one by one, clean up the debris on the sampling ground, and then place the thorny ring gripping plate in the sampling power component above the ground to be sampled;

[0059] Step three, sampling. After positioning the sampling power assembly, rotate the power turntable. The movement of the power turntable drives the power rotating rod to rotate. The rotation of the power rotating rod drives bevel gear eight to rotate. The rotation of bevel gear eight drives the bevel gear five meshing therewith to rotate. The rotation of bevel gear five drives the sampling steering rod to rotate. The rotation of the sampling steering rod drives bevel gear six to rotate. The rotation of bevel gear six drives bevel gear seven to rotate. The rotation of bevel gear seven drives the power tube to rotate. The rotation of the power tube drives the sampling ball nut group to rotate. Through the telescopic limit of the hexagonal telescopic limit rod, the rotation of the sampling ball nut group drives the sampling reciprocating screw to perform linear reciprocating motion. The linear motion of the sampling reciprocating screw drives the sampling rotating rod to move. The movement of the sampling rotating rod drives the movement of the underground rotating rod. The movement of the underground rotating rod drives the underground spiral The sampling blade moves toward the soil layer below the ground, and while the sampling ball nut group rotates, the sampling ball nut group also drives the rotating sampling cover to move, and the movement of the rotating sampling cover drives the extended inner gear to rotate, and the rotation of the extended inner gear drives the rotation of the adjustment gear, and the sampling rotating rod is driven to rotate by the rotation of the adjustment gear, so that the sampling rotating rod drives the underground spiral material blade to move below the ground while rotating, and the soil to be sampled on the ground is rotated into the sampling outer cylinder under the rotation of the underground spiral material blade, and the rotation of the rotating sampling cover drives the sealing plate 2 to rotate at the same time, and the rotation of the sealing plate 2 drives the rodless spiral material blade to rotate, and the soil entering the sampling outer cylinder is moved toward the direction of the feed pipe by the rotation of the rodless spiral material blade until the soil enters the screening box through the feed pipe;

[0060] Step 4: Soil screening. After the soil at the position to be tested is rotated into the screening box, the soil will accumulate on the perforated screening plate. The rotation of the power rotating rod will drive the screening rotating rod to rotate at the same time. The rotation of the screening rotating rod drives the screening scraper and the discharging scraper to move. Under the rotation of the screening scraper, the soil with smaller particle size will fall into the material forming area through the perforated screening plate, while the large particles of stone in the soil cannot pass through the perforated screening plate. Under the action of the centrifugal force of the screening scraper, it will be discharged through the stone discharging pipe. The soil that meets the requirements enters the material forming area, and under the movement of the discharging scraper, it will enter the storage box through the discharging elbow.

[0061] Step 5, soil mixing. After the sampled soil enters the storage box, the rotation of the power rotating rod drives the bevel gear one to rotate at the same time, the rotation of bevel gear one drives the bevel gear two to rotate, the rotation of bevel gear two drives the transmission rotating rod to rotate, the rotation of the transmission rotating rod drives the bevel gear three to rotate, the rotation of bevel gear three drives the bevel gear four to rotate, the rotation of bevel gear four drives the mixing rotating rod to rotate, the rotation of the mixing rotating rod drives the spiral mixing blades to rotate, and the rotation of the spiral mixing blades drives the soil in the storage box to move from bottom to top for mixing.

[0062] The beneficial effects of the present invention are:

[0063] 1. The present invention uses a shoulder strap to carry the sampling device, which is not only convenient to carry, but also comfortable to carry. In addition, the sampling device does not require power supply and is suitable for sampling operations in more field environments.

[0064] 2. In the present invention, during the sampling process, since two groups of soil sampling mechanisms are provided, sampling can be performed at two points at the same time at one sampling point. While improving the stability of the equipment, the soil information of the test point can be extracted more comprehensively. In the actual sampling process, when the gravel content in the soil is large and the amount of soil after one-time sampling and screening is insufficient for detection, multi-point sampling can be performed. After the soil samples from multiple points are concentrated in the storage box, the mixed soil samples can be tested by mixing the soil, so as to obtain more reliable analysis results. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0066] Figure 1 It is a schematic diagram of the structure of a partial cross-section of the present invention;

[0067] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0068] Figure 3 For the present invention Figure 1 A schematic diagram of the local enlarged structure at B in the middle;

[0069] Figure 4 For the present invention Figure 1 A schematic diagram of the local enlarged structure at C in the middle;

[0070] Figure 5 For the present invention Figure 1 A schematic diagram of the local enlarged structure at D in the middle;

[0071] Figure 6 For the present invention Figure 1 A schematic diagram of the local enlarged structure at E in the middle;

[0072] Figure 7 For the present invention Figure 1 A schematic diagram of the local enlarged structure at F in the middle;

[0073] Figure 8 It is a structural schematic diagram of a partial cross-section of the soil sampling mechanism of the present invention;

[0074] Fig. 9 It is a schematic diagram of the overall structure of the present invention;

[0075] Fig.10 It is a structural schematic diagram of another angle of the present invention as a whole.

[0076] In the figure: 001, screening component; 002, mixing component; 003, soil sampling mechanism; 004, sampling power component;

[0077] 1. Screening box; 2. Discharge elbow; 3. Storage box; 4. Discharge valve; 5. Screen plate with holes; 6. Stone discharge pipe; 7. Screening rod; 8. Screening scraper; 9. Discharge scraper; 10. Mixing rod; 11. Spiral mixing blade; 12. Transmission rod; 13. Bevel gear 1; 14. Bevel gear 2; 15. Bevel gear 3; 16. Bevel gear 4; 17. Transmission protection box; 18. Sampling outer cylinder; 19. Sealing plate 1; 20. Sealing plate 2; 21. Feed pipe; 22. Sampling ball nut set; 23. Sampling reciprocating screw ; 24. Power tube; 25. Power cover; 26. Hexagonal telescopic limit rod; 27. Sampling steering rod; 28. Bevel gear five; 29. ​​Bevel gear six; 30. Bevel gear seven; 31. Sampling rotating rod; 32. Rotating sampling cover; 33. Extended internal gear; 34. Adjusting gear; 35. Rodless spiral material taking blade; 36. Underground sampling rod; 37. Underground spiral material taking blade; 38. Barbed annular gripping plate; 39. Power plate; 40. Power rotating rod; 41. Bevel gear eight; 42. Power turntable; 43. Gear box; 44. Shoulder strap. DETAILED DESCRIPTION

[0078] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0079] Embodiment 1, as Figures 1 to 10 As shown, this embodiment proposes a multi-point sampling device for surface soil for field survey, including a screening box 1, a screening component 001, a mixing component 002, a soil sampling mechanism 003 and a sampling power component 004.

[0080] As mentioned above, the bottom of the screening box 1 is connected to the storage box 3 through the discharge elbow 2, and a discharge valve 4 is installed at the bottom of the storage box 3; by opening the discharge valve, the soil to be tested obtained in the storage box 3 can be discharged.

[0081] As mentioned above, the screening component 001 is arranged in the screening box 1, and is used for filtering and separating stones in the soil. The screening component 001 includes a perforated screening plate 5, a stone discharge pipe 6, a screening rotating rod 7, a screening scraper 8 and a discharging scraper 9. The perforated screening plate 5 is arranged in the screening box 1, and the perforated screening plate 5 divides the screening box 1 into a feeding area and a forming area. The stone discharge pipe 6 is connected and arranged on one side of the feeding area. The screening rotating rod 7 penetrates and is rotatably arranged on the screening box 1 and the perforated screening plate 5. The screening scraper 8 is arranged on the screening rotating rod 7. The screening scraper 8 is located in the feeding area. The screening scraper 8 contacts the upper surface of the perforated screening plate 5. The discharging scraper 9 is arranged on the screening rotating rod 7. The discharging scraper 9 is located in the forming area. The discharging scraper 9 contacts the bottom of the screening box 1.

[0082] Specifically, after the soil at the position to be measured is rotated into the screening box 1, the soil will accumulate on the perforated screening plate 5, and the rotation of the screening rotating rod 7 will drive the screening scraper 8 and the discharging scraper 9 to move. Under the rotation of the screening scraper 8, soil with smaller particle size will fall into the material forming area through the perforated screening plate 5, while large particles of stone in the soil cannot pass through the perforated screening plate 5. Under the action of the centrifugal force of the screening scraper 8, it will be discharged through the stone discharge pipe 6. Soil that meets the requirements enters the material forming area, and under the movement of the discharging scraper 9, it will enter the storage box 3 through the discharging elbow 2.

[0083] As mentioned above, the mixing component 002 is arranged in the storage box 3, and is used to mix the collected soil samples. The mixing component 002 includes a mixing rotating rod 10, a spiral mixing blade 11 and a mixing transmission group. The mixing rotating rod 10 passes through and is rotatably arranged on the storage box 3. The spiral mixing blade 11 is arranged on the mixing rotating rod 10. The spiral mixing blade 11 is located in the storage box 3. The mixing transmission group is arranged on the screening box 1, and the mixing transmission group is connected to the mixing rotating rod 10 and the sampling power component 004.

[0084] Among them, the mixing transmission group includes a transmission rotating rod 12, bevel gear one 13, bevel gear two 14, bevel gear three 15, bevel gear four 16 and a transmission protection box 17. The transmission rotating rod 12 is rotatably arranged on the screening box 1 through a swivel seat. Bevel gear one 13 is arranged on the sampling power component 004. Bevel gear two 14 is arranged on the transmission rotating rod 12. Bevel gear two 14 is meshed with bevel gear one 13. Bevel gear three 15 is arranged on the transmission rotating rod 12. Bevel gear four 16 is arranged on the mixing rotating rod 10. Bevel gear four 16 is meshed with bevel gear three 15. The transmission protection box 17 is arranged on the screening box 1. Bevel gear one 13, bevel gear two 14, bevel gear three 15 and bevel gear four 16 are all located in the transmission protection box 17.

[0085] Specifically, the rotation of bevel gear one 13 drives bevel gear two 14 to rotate, the rotation of bevel gear two 14 drives the transmission rotating rod 12 to rotate, the rotation of the transmission rotating rod 12 drives bevel gear three 15 to rotate, the rotation of bevel gear three 15 drives bevel gear four 16 to rotate, the rotation of bevel gear four 16 drives the mixing rotating rod 10 to rotate, the rotation of the mixing rotating rod 10 drives the spiral mixing blade 11 to rotate, and the rotation of the spiral mixing blade 11 drives the soil in the storage box 3 to move from bottom to top for mixing.

[0086] The soil sampling mechanism 003 is provided with two groups, and the two groups of soil sampling mechanisms 003 are connected and arranged on both sides of the screening box 1 respectively, for sampling the soil on the surface of the ground and introducing the sampled soil into the screening box 1. The soil sampling mechanism 003 includes a sampling outer cylinder 18, a sealing plate 1 19, a sealing plate 2 20, a feeding pipe 21, a sampling ball nut group 22, a sampling reciprocating screw rod 23, a power tube 24, a power cover 25, a sampling steering rod 27, a bevel gear 5 28, a bevel gear 6 29, a bevel gear 7 30, a sampling rotating rod 31, a rotating sampling cover 32, an extended internal gear 33, a rotating gear 34, a rodless spiral material taking blade 35, an underground sampling rod 36, an underground spiral material taking blade 37 and a barbed annular ground grabbing plate 38. The sampling outer cylinder 18 is provided with On one side of the storage box 3, a sealing plate 19 is arranged in the sampling outer cylinder 18, a sealing plate 20 is rotatably arranged in the sampling outer cylinder 18, and the sealing plate 20 is located below the sealing plate 19. The sealing plate 20 and the sealing plate 19 divide the sampling outer cylinder 18 into a positioning area, a rotation area and a sampling area in turn. The feeding pipe 21 is connected and arranged between the sampling area and the feeding area. The sampling ball nut group 22 passes through and is rotatably arranged on the sealing plate 19. The sampling reciprocating screw rod 23 is threadedly connected in the sampling ball nut group 22. The power tube 24 passes through and is rotatably arranged on the sampling outer cylinder 18. One end of the power tube 24 is connected to the sampling ball nut group 22. The sampling reciprocating screw rod 23 is located in the power tube 24. The power cover 25 is connected and arranged on the sampling outer cylinder 18 A hexagonal telescopic limit rod 26 is connected between the power cover 25 and the sampling reciprocating screw rod 23, a sampling steering rod 27 passes through and is rotatably arranged on the power cover 25, a bevel gear five 28 is arranged on the sampling steering rod 27, the bevel gear five 28 is meshed with the sampling power assembly 004, a bevel gear six 29 is arranged on the sampling steering rod 27, a bevel gear seven 30 is arranged on the power tube 24, the bevel gear seven 30 is meshed with the bevel gear six 29, one end of the sampling rotating rod 31 is rotatably arranged on the end of the sampling reciprocating screw rod 23 away from the hexagonal telescopic limit rod 26, the other end of the sampling rotating rod 31 passes through the sealing plate two 20, the rotating sampling cover 32 is arranged between the sampling ball nut group 22 and the sealing plate two 20, the rotating sampling cover 32 is located in the turning area, and the sampling rotating rod 31 Located in the rotating sampling cover 32, the extended internal gear 33 is arranged inside the rotating sampling cover 32, the adjustment gear 34 is arranged on the sampling rotating rod 31, the adjustment gear 34 is located in the extended internal gear 33, and the adjustment gear 34 is meshed with the extended internal gear 33, the rodless spiral material blade 35 is arranged on the sealing plate 20, the rodless spiral material blade 35 is located in the sampling area, the rodless spiral material blade 35 is in contact with the inner wall of the sampling outer cylinder 18, the sampling rotating rod 31 is located in the rodless spiral material blade 35, and the sampling rotating rod 31 is in contact with the rodless spiral material blade 35, the underground sampling rod 36 is arranged on the sampling rotating rod 31, the underground spiral material blade 37 is arranged on the underground sampling rod 36, and the underground spiral material blade 37 is located in the rodless spiral material blade 35,The barbed annular gripping disc 38 is disposed at the bottom of the sampling outer cylinder 18 and is used to locate the position of the sampling outer cylinder 18.

[0087] Specifically, the sampling steering rod 27 is driven to rotate by the rotation of the bevel gear five 28, the rotation of the sampling steering rod 27 drives the bevel gear six 29 to rotate, the rotation of the bevel gear six 29 drives the bevel gear seven 30 to rotate, the rotation of the bevel gear seven 30 drives the power tube 24 to rotate, the rotation of the power tube 24 drives the sampling ball nut group 22 to rotate, through the telescopic limit of the hexagonal telescopic limit rod 26, the rotation of the sampling ball nut group 22 drives the sampling reciprocating screw rod 23 to perform linear reciprocating motion, the linear motion of the sampling reciprocating screw rod 23 drives the sampling rotating rod 31 to move, the movement of the sampling rotating rod 31 drives the underground rotating rod to move, the movement of the underground rotating rod drives the underground spiral material taking blade 37 to move toward the soil layer below the ground, and while the sampling ball nut group 22 rotates, the sampling ball nut group 22 simultaneously drives the rotating sampling cover 32 to move, the movement of the rotating sampling cover 32 drives the extended inner gear 33 to rotate, the rotation of the extended inner gear 33 drives the reversing gear 34 to rotate, and the rotation of the reversing gear 34 drives the sampling rotating rod 31 to rotate, so that the sampling rotating rod 31 drives the underground spiral material taking blade 37 to move below the ground while rotating, and under the rotation of the underground spiral material taking blade 37, the soil to be sampled on the ground is screwed into the sampling outer cylinder 18, and the rotation of the rotating sampling cover 32 simultaneously drives the sealing plate 20 to rotate, and the rotation of the sealing plate 20 drives the rodless spiral material taking blade 35 to rotate, and the soil entering the sampling outer cylinder 18 is moved toward the direction of the feed pipe 21 by the rotation of the rodless spiral material taking blade 35 until the soil enters the screening box 1 through the feed pipe 21.

[0088] It should be supplemented that, in the actual sampling process, because the soil taken by the underground spiral material taking blade 37 has a certain upper limit and depth, when the stone content in the soil is large and the amount of soil after one-time sampling and screening is insufficient for testing, multi-point sampling can be carried out. After the soil samples from multiple points are concentrated in the storage box 3, the soil is mixed and the mixed soil samples are tested to obtain more reliable analysis results. In the process of rotating the soil, when the underground spiral material taking blade 37 is subjected to a large torque due to deep underground, the barbed annular gripping plate 38 can be appropriately lifted upward to reduce the torque of the underground spiral material taking blade 37.

[0089] In the present application, a reciprocating screw rod is set up. After the underground spiral feeding blade 37 reaches the maximum underground depth for sampling, it will move upward to transport all the sampled soil into the screening box 1. At this time, the power turntable 42 can be continuously rotated in one direction. At this time, the sampling pit is in a cavity state. The underground spiral feeding blade 37 is not in the feeding state, and it still does not affect the screening and mixing of the sampled soil. When the soil is rotated and mixed, the transportation direction of the rotated soil can be controlled by adjusting the rotation direction of the spiral mixing blade, the rodless spiral feeding blade 35 and the underground spiral feeding blade 37.

[0090] It is further explained that if there is a depth requirement for the sampling location, the soil at the test point needs to be dug down from the surface until the sampling location is reached.

[0091] As mentioned above, the sampling power assembly 004 is arranged on the two soil sampling mechanisms 003, and the sampling power assembly 004 is meshed with the soil sampling mechanism 003, the screening assembly 001 and the mixing assembly 002, and is used to drive the screening assembly 001, the mixing assembly 002 and the soil sampling assembly to move synchronously. The sampling power assembly 004 includes a power plate 39, a power rotating rod 40, a bevel gear eight 41, a power turntable 42 and a gear box 43. The power plate 39 is arranged on the power cover 25, the power rotating rod 40 penetrates and is rotatably arranged on the power plate 39, one end of the power rotating rod 40 is connected to the mixing rotating rod 10, the bevel gear one 13 is arranged on the power rotating rod 40, the bevel gear eight 41 is arranged on the power rotating rod 40, the bevel gear eight 41 is meshed with the bevel gear five 28, the power turntable 42 is arranged on the power rotating rod 40, the gear box 43 is arranged on the power plate 39, and the bevel gear eight 41 and the bevel gear five 28 are both located in the gear box 43.

[0092] Specifically, by rotating the power turntable 42, the rotation of the power turntable 42 drives the power rotating rod 40 to rotate, and the rotation of the power rotating rod 40 drives the bevel gear eight 41, the mixing rotating rod 10 and the bevel gear one 13 to rotate synchronously.

[0093] It is further explained that a shoulder strap 44 with a telescopic positioning function is provided on the side of each sampling outer cylinder 18 away from the storage box 3. The shoulder strap 44 with a telescopic positioning function is a device in the prior art that can be adjusted to be suitable for people of different heights. It is an existing device well known to those skilled in the art. The specific structure is not the main innovation of this application and will not be described in detail here. By providing the shoulder strap 44, it is not only convenient to carry, but also more comfortable to carry. In addition, the sampling device does not require power supply and is suitable for sampling operations in more field environments.

[0094] Embodiment 2: Embodiment 2 of the present application proposes a multi-point sampling method for surface soil in field survey based on Embodiment 1. The specific method is as follows:

[0095] Portable, the sampling personnel can carry the shoulder strap 44 to carry the multi-point sampling equipment of the surface soil for field investigation.

[0096] Select the site and locate two sampling locations that correspond to the sampling power components 004 one by one, clean up the debris on the sampling ground, and then place the barbed annular gripping plate 38 in the sampling power component 004 above the ground to be sampled.

[0097] Sampling, after positioning the sampling power assembly 004, rotate the power turntable 42, the movement of the power turntable 42 drives the power rotating rod 40 to rotate, the rotation of the power rotating rod 40 drives the bevel gear eight 41 to rotate, the rotation of the bevel gear eight 41 drives the bevel gear five 28 meshing therewith to rotate, the rotation of the bevel gear five 28 drives the sampling steering rod 27 to rotate, the rotation of the sampling steering rod 27 drives the bevel gear six 29 to rotate, the rotation of the bevel gear six 29 drives the bevel gear seven 30 to rotate, the rotation of the bevel gear seven 30 drives the power tube 24 to rotate, the rotation of the power tube 24 drives the sampling ball nut group 22 to rotate, through the telescopic limit of the hexagonal telescopic limit rod 26, the rotation of the sampling ball nut group 22 drives the sampling reciprocating screw 23 to perform linear reciprocating motion, the linear motion of the sampling reciprocating screw 23 drives the sampling rotating rod 31 to move, the movement of the sampling rotating rod 31 drives the movement of the underground rotating rod, and the movement of the underground rotating rod drives the underground spiral The sampling blade 37 moves toward the soil layer below the ground, and while the sampling ball nut group 22 rotates, the sampling ball nut group 22 also drives the rotating sampling cover 32 to move, and the movement of the rotating sampling cover 32 drives the extended inner gear 33 to rotate, and the rotation of the extended inner gear 33 drives the reversing gear 34 to rotate, and the rotation of the reversing gear 34 drives the sampling rotating rod 31 to rotate, so that the sampling rotating rod 31 drives the underground spiral material taking blade 37 to move below the ground while rotating, and under the rotation of the underground spiral material taking blade 37, the soil to be sampled on the ground is screwed into the sampling outer cylinder 18, and the rotation of the rotating sampling cover 32 simultaneously drives the sealing plate 20 to rotate, and the rotation of the sealing plate 20 drives the rodless spiral material taking blade 35 to rotate, and the soil entering the sampling outer cylinder 18 is moved toward the direction of the feed pipe 21 by the rotation of the rodless spiral material taking blade 35 until the soil enters the screening box 1 through the feed pipe 21.

[0098] Soil screening, after the soil at the position to be tested is rotated into the screening box 1, the soil will accumulate on the perforated screening plate 5, and the rotation of the power rotating rod 40 will drive the screening rotating rod 7 to rotate at the same time, and the rotation of the screening rotating rod 7 will drive the screening scraper 8 and the discharge scraper 9 to move. Under the rotation of the screening scraper 8, soil with smaller particle size will fall into the material forming area through the perforated screening plate 5, while large particles of stone in the soil cannot pass through the perforated screening plate 5. Under the action of the centrifugal force of the screening scraper 8, it will be discharged through the stone discharge pipe 6. Soil that meets the requirements enters the material forming area, and under the movement of the discharge scraper 9, it will enter the storage box 3 through the discharge elbow 2.

[0099] Soil mixing, when the sampled soil enters the storage box 3, the rotation of the power rotating rod 40 drives the bevel gear 13 to rotate at the same time, the rotation of the bevel gear 13 drives the bevel gear 2 14 to rotate, the rotation of the bevel gear 2 14 drives the transmission rotating rod 12 to rotate, the rotation of the transmission rotating rod 12 drives the bevel gear 3 15 to rotate, the rotation of the bevel gear 3 15 drives the bevel gear 4 16 to rotate, the rotation of the bevel gear 4 16 drives the mixing rotating rod 10 to rotate, the rotation of the mixing rotating rod 10 drives the spiral mixing blade 11 to rotate, and the rotation of the spiral mixing blade 11 drives the soil in the storage box 3 to move from bottom to top for mixing.

[0100] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-point sampling device for surface soil for field survey, characterized in that: include: A screening box (1), the bottom of which is connected to a storage box (3) via a discharge elbow (2), and a discharge valve (4) is installed at the bottom of the storage box (3); A screening material assembly (001), the screening material assembly (001) being arranged in the screening material box (1) and being used for filtering and separating gravel in the soil; A mixing component (002), the mixing component (002) being arranged in the storage box (3) and being used for mixing the collected soil samples; A soil sampling mechanism (003), wherein the soil sampling mechanism (003) is provided with two groups, and the two groups of soil sampling mechanisms (003) are respectively connected and arranged on both sides of the screening box (1), and are used to sample the soil on the surface of the ground and introduce the sampled soil into the screening box (1); A sampling power assembly (004), wherein the sampling power assembly (004) is arranged on the two soil sampling mechanisms (003), and the sampling power assembly (004) is meshed with the soil sampling mechanisms (003), the screening assembly (001) and the mixing assembly (002), and is used to drive the screening assembly (001), the mixing assembly (002) and the soil sampling assembly to move synchronously.

2. A multi-point sampling device for surface soil for field survey according to claim 1, characterized in that: The screening material assembly (001) comprises: A perforated sieve plate (5), wherein the perforated sieve plate (5) is arranged in the sieve box (1), and the perforated sieve plate (5) separates the sieve box (1) into a feeding area and a finishing area; A stone discharge pipe (6), the stone discharge pipe (6) being arranged in communication with one side of the feed zone; A screening material rotating rod (7), the screening material rotating rod (7) penetrates through and is rotatably arranged on the screening material box (1) and the perforated screening material plate (5); a screening scraper (8), the screening scraper (8) being arranged on the screening rotating rod (7), the screening scraper (8) being located in the feeding area, and the screening scraper (8) being in contact with the upper surface of the perforated screening plate (5); A material discharging scraper (9), wherein the material discharging scraper (9) is arranged on the material screening rotating rod (7), the material discharging scraper (9) is located in the material forming area, and the material discharging scraper (9) is in contact with the bottom of the material screening box (1).

3. The multi-point sampling device for surface soil for field survey according to claim 2, characterized in that: The mixing component (002) comprises: A mixing rotating rod (10), the mixing rotating rod (10) penetrates through and is rotatably disposed on the material storage box (3); A spiral mixing blade (11), wherein the spiral mixing blade (11) is arranged on the mixing rotating rod (10), and the spiral mixing blade (11) is located in the storage box (3); A mixing transmission group, the mixing transmission group is arranged on the screening box (1), and the mixing transmission group is connected to the mixing rotating rod (10) and the sampling power component (004).

4. The multi-point sampling device for surface soil for field survey according to claim 3, characterized in that: The mixing transmission group comprises: A transmission rotating rod (12), the transmission rotating rod (12) being rotatably arranged on the screening box (1) via a rotating seat; Bevel gear one (13), the bevel gear one (13) being arranged on the sampling power assembly (004); Bevel gear 2 (14), the bevel gear 2 (14) is arranged on the transmission rotating rod (12), and the bevel gear 2 (14) is meshed with the bevel gear 1 (13); Bevel gear three (15), the bevel gear three (15) is arranged on the transmission rotating rod (12); Bevel gear four (16), the bevel gear four (16) is arranged on the mixing rotating rod (10), and the bevel gear four (16) is meshed with the bevel gear three (15); A transmission protection box (17), wherein the transmission protection box (17) is arranged on the screening box (1), and the bevel gear one (13), the bevel gear two (14), the bevel gear three (15) and the bevel gear four (16) are all located in the transmission protection box (17).

5. The multi-point sampling device for surface soil for field survey according to claim 4, characterized in that: The soil sampling mechanism (003) comprises: A sampling outer cylinder (18), wherein the sampling outer cylinder (18) is arranged on one side of the storage box (3); A sealing plate (19), wherein the sealing plate (19) is disposed inside the sampling outer cylinder (18); A second sealing plate (20), the second sealing plate (20) being rotatably disposed in the sampling outer cylinder (18), the second sealing plate (20) being located below the first sealing plate (19), the second sealing plate (20) and the first sealing plate (19) sequentially dividing the interior of the sampling outer cylinder (18) into a positioning area, a rotation area and a sampling area; A material delivery pipe (21), the material delivery pipe (21) is arranged in communication between the sampling area and the feeding area; A sampling ball nut assembly (22), wherein the sampling ball nut assembly (22) penetrates and is rotatably disposed on the sealing plate 1 (19); A sampling reciprocating screw rod (23), wherein the sampling reciprocating screw rod (23) is threadedly connected in the sampling ball nut assembly (22); A power tube (24), the power tube (24) penetrates and is rotatably disposed on the sampling outer cylinder (18), one end of the power tube (24) is connected to the sampling ball nut assembly (22), and the sampling reciprocating screw rod (23) is located inside the power tube (24); A power cover (25), the power cover (25) is connected to the sampling outer cylinder (18), and a hexagonal telescopic limit rod (26) is connected between the power cover (25) and the sampling reciprocating screw rod (23); A sampling steering rod (27), the sampling steering rod (27) penetrates and is rotatably disposed on the power cover (25); Bevel gear five (28), the bevel gear five (28) is arranged on the sampling steering rod (27), and the bevel gear five (28) is meshed with the sampling power assembly (004); Bevel gear six (29), the bevel gear six (29) being arranged on the sampling steering rod (27); Bevel gear seven (30), the bevel gear seven (30) is arranged on the power tube (24), and the bevel gear seven (30) is meshed with the bevel gear six (29); A sampling rotating rod (31), one end of which is rotatably arranged on an end of the sampling reciprocating screw rod (23) away from the hexagonal telescopic limiting rod (26), and the other end of the sampling rotating rod (31) passes through the second sealing plate (20); A rotating sampling cover (32), wherein the rotating sampling cover (32) is arranged between the sampling ball nut assembly (22) and the second sealing plate (20), the rotating sampling cover (32) is located in the rotation area, and the sampling rotating rod (31) is located in the rotating sampling cover (32); an extended internal gear (33), wherein the extended internal gear (33) is arranged inside the rotating sampling cover (32); A rotation gear (34), wherein the rotation gear (34) is arranged on the sampling rotating rod (31), the rotation gear (34) is located inside the extended internal gear (33), and the rotation gear (34) is meshed with the extended internal gear (33); A rodless spiral material taking blade (35), wherein the rodless spiral material taking blade (35) is arranged on the second sealing plate (20), the rodless spiral material taking blade (35) is located in the sampling area, the rodless spiral material taking blade (35) is in contact with the inner wall of the sampling outer cylinder (18), the sampling rotating rod (31) is located in the rodless spiral material taking blade (35), and the sampling rotating rod (31) is in contact with the rodless spiral material taking blade (35); An underground sampling rod (36), wherein the underground sampling rod (36) is arranged on the sampling rotating rod (31); An underground spiral material taking blade (37), wherein the underground spiral material taking blade (37) is arranged on the underground sampling rod (36), and the underground spiral material taking blade (37) is located inside the rodless spiral material taking blade (35); A barbed annular gripping disc (38) is arranged at the bottom of the sampling outer cylinder (18) and is used to locate the position of the sampling outer cylinder (18).

6. The multi-point sampling device for surface soil for field survey according to claim 5, characterized in that: The sampling power assembly (004) comprises: A power plate (39), wherein the power plate (39) is arranged on the power cover (25); A power rotating rod (40), the power rotating rod (40) penetrates and is rotatably arranged on the power plate (39), one end of the power rotating rod (40) is connected to the mixing rotating rod (10), and the bevel gear 1 (13) is arranged on the power rotating rod (40); Bevel gear eight (41), the bevel gear eight (41) is arranged on the power rotating rod (40), and the bevel gear eight (41) is meshed with the bevel gear five (28); A power turntable (42), wherein the power turntable (42) is arranged on the power turntable (40); A gear box (43), wherein the gear box (43) is arranged on the power plate (39), and the bevel gear eight (41) and the bevel gear five (28) are both located in the gear box (43).

7. The multi-point sampling device for surface soil for field survey according to claim 6, characterized in that: A shoulder strap (44) with a telescopic positioning function is provided on one side of each of the sampling outer cylinders (18) away from the material storage box (3).

8. A method for multi-point sampling of surface soil during field survey, using the multi-point sampling device for surface soil during field survey according to claim 7, characterized in that: The following steps are involved: S1. Portable. The sampling personnel can carry the multi-point sampling equipment of the surface soil for field survey by carrying the shoulder strap (44); S2, site selection and positioning, select two sampling locations corresponding to the sampling power components (004), clean up the debris on the sampling ground, and then place the barbed annular gripping plate (38) in the sampling power component (004) above the ground to be sampled; S3, sampling, after positioning the sampling power assembly (004), rotate the power turntable (42), the power turntable (42) drives the power rotating rod (40) to rotate, the rotation of the power rotating rod (40) drives the bevel gear eight (41) to rotate, the rotation of the bevel gear eight (41) drives the bevel gear five (28) meshing therewith to rotate, the rotation of the bevel gear five (28) drives the sampling steering rod (27) to rotate, the rotation of the sampling steering rod (27) drives the bevel gear six (29) to rotate, the rotation of the bevel gear six (29) drives The bevel gear seven (30) rotates, the rotation of the bevel gear seven (30) drives the power tube (24) to rotate, the rotation of the power tube (24) drives the sampling ball nut group (22) to rotate, through the telescopic limit of the hexagonal telescopic limit rod (26), the rotation of the sampling ball nut group (22) drives the sampling reciprocating screw rod (23) to perform linear reciprocating motion, the linear motion of the sampling reciprocating screw rod (23) drives the sampling rotating rod (31) to move, the motion of the sampling rotating rod (31) drives the underground rotating rod to move, and the motion of the underground rotating rod drives the underground rotating rod The ground spiral material taking blade (37) moves toward the soil layer below the ground, and while the sampling ball nut group (22) rotates, the sampling ball nut group (22) drives the rotating sampling cover (32) to move, and the movement of the rotating sampling cover (32) drives the extended inner gear (33) to rotate, and the rotation of the extended inner gear (33) drives the rotation gear (34) to rotate, and the rotation of the rotation gear (34) drives the sampling rotating rod (31) to rotate, so that the sampling rotating rod (31) drives the ground spiral material taking blade (37) to move toward below the ground. The rodless spiral material taking blade (35) rotates while moving, and the soil to be sampled on the ground is rotated into the sampling outer cylinder (18) under the rotation of the underground spiral material taking blade (37), and the rotation of the rotating sampling cover (32) drives the second sealing plate (20) to rotate at the same time, and the rotation of the second sealing plate (20) drives the rodless spiral material taking blade (35) to rotate, and the soil entering the sampling outer cylinder (18) is moved toward the direction of the material conveying pipe (21) by the rotation of the rodless spiral material taking blade (35) until the soil passes through the material conveying pipe (21) and enters the screening box (1); S4, soil screening, after the soil at the position to be tested is rotated into the screening box (1), the soil will accumulate on the perforated screening plate (5), and the rotation of the power rotating rod (40) will drive the screening rotating rod (7) to rotate at the same time, and the rotation of the screening rotating rod (7) will drive the screening scraper (8) and the discharge scraper (9) to move. Under the rotation of the screening scraper (8), the soil with smaller particle size will fall into the material forming area through the perforated screening plate (5), while the large particles of stone in the soil cannot pass through the perforated screening plate (5). Under the action of the centrifugal force of the screening scraper (8), it will be discharged through the stone discharge pipe (6), and the soil that meets the requirements will enter the material forming area. Under the movement of the discharge scraper (9), it will enter the storage box (3) through the discharge elbow (2); S5, soil mixing. After the sampled soil enters the storage box (3), the rotation of the power rotating rod (40) drives the bevel gear 1 (13) to rotate, the rotation of the bevel gear 1 (13) drives the bevel gear 2 (14) to rotate, the rotation of the bevel gear 2 (14) drives the transmission rotating rod (12) to rotate, the rotation of the transmission rotating rod (12) drives the bevel gear 3 (15) to rotate, the rotation of the bevel gear 3 (15) drives the bevel gear 4 (16) to rotate, the rotation of the bevel gear 4 (16) drives the mixing rotating rod (10) to rotate, the rotation of the mixing rotating rod (10) drives the spiral mixing blade (11) to rotate, and the rotation of the spiral mixing blade (11) drives the soil in the storage box (3) to move from bottom to top for mixing.

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