Soil sampling detection device for geological evaluation

Abstract

The invention discloses a soil sampling and detecting device for geological evaluation, which comprises a trolley, two vertical connecting rods are symmetrically and fixedly arranged at one end of the upper part of the trolley, a horizontal mounting plate is fixedly arranged at the upper parts of the two connecting rods, and a lifting platform is arranged on the two connecting rods in a common sliding manner; two unthreaded holes in sliding fit with the two connecting rods are formed in the lifting table, and a feeding driving mechanism used for driving the lifting table to move up and down is arranged between the horizontal mounting plate and the upper portion of the trolley. A drilling barrel is rotationally arranged at one end, far away from the two connecting rods, of the lifting table, and an avoiding hole for the drilling barrel to pass through is formed in the trolley; the portion, close to the upper end, of the drilling barrel is rotationally connected with the lifting table, and a rotation driving mechanism used for driving the drilling barrel to rotate is arranged at the bottom of the lifting table. The stratified sampling operation of soil with different depths can be completed, and the data accuracy of geological evaluation soil sample detection can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of geological evaluation equipment, and particularly relates to a soil sampling and detection device for geological evaluation. Background Art

[0002] Geological evaluation is a geological investigation and research work carried out to study the geological factors affecting engineering buildings. The geological factors to be evaluated include geological structure, landform, hydrogeological conditions, physical and mechanical properties of soil and rock, natural geological phenomena, natural building materials, etc. Sampling and testing the deep-layer soil of the geology is an important work content of geological evaluation. In order to improve the accuracy of soil detection, when taking soil samples, it is necessary to take samples in layers. The soil sampler needs to penetrate into the soil interior to take samples of soil at different depths. However, in the prior art, when sampling deep-layer soil, it is easy to mix the soils of each layer, resulting in improper use of samples, which will affect the research and analysis of the soil. Therefore, a soil sampling and detection device for geological evaluation is developed. Summary of the Invention

[0003] The purpose of the present invention is to provide a soil sampling and detection device for geological evaluation to solve the technical problems mentioned in the above background art.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A soil sampling and detection device for geological evaluation of the present invention includes a trolley. At one end of the upper part of the trolley, two vertical connecting rods are symmetrically and fixedly arranged. At the upper parts of the two connecting rods, a horizontal mounting plate is fixedly arranged. An elevating platform is slidably arranged on the two connecting rods together. Two light holes respectively slidably matched with the two connecting rods are opened on the elevating platform. A feed driving mechanism for driving the elevating platform to move up and down is arranged between the horizontal mounting plate and the upper part of the trolley.

[0006] A drilling cylinder is rotatably arranged at one end of the elevating platform away from the two connecting rods. An avoidance hole for the drilling cylinder to pass through is opened on the trolley; the part of the drilling cylinder near the upper end is rotatably connected with the elevating platform. A rotation driving mechanism for driving the drilling cylinder to rotate is arranged at the bottom of the elevating platform; a drilling spiral blade is fixedly sleeved on the outer peripheral wall of the drilling cylinder. The lower end of the drilling cylinder is a tapered structure. A plurality of soil inlet holes are uniformly opened in the circumferential direction on the circumferential wall of the drilling cylinder near its lower end.

[0007] A sampling cylinder is provided at the upper end of the drilling cylinder. The inner circumference of the lower end of the sampling cylinder is rotationally matched with the outer circumference of the upper end of the drilling cylinder. The middle of the outer peripheral wall of the sampling cylinder is fixedly connected to the upper part of the lifting platform through two L-shaped connecting frames. A sampling mechanism is provided between the sampling cylinder and the plurality of soil inlet holes. A discharge pipe communicating with the inside thereof is obliquely arranged downward on the outer peripheral wall of the sampling cylinder.

[0008] Further, wheels are respectively rotatably arranged at the four corner positions of the bottom of the trolley. A push handle is fixedly arranged on the upper part of the trolley outside the two connecting rods.

[0009] Further, the feeding drive mechanism includes a lead screw rotatably arranged vertically between the horizontal mounting plate and the trolley. A first motor for driving the rotation of the lead screw is fixedly arranged on the upper part of the horizontal mounting plate. A lead screw sleeve threadedly connected to the lead screw is fixedly arranged on the lifting platform.

[0010] Further, the rotation drive mechanism includes a second motor fixedly arranged at the bottom of the lifting platform. A driving gear is arranged on the driving shaft of the second motor. A driven gear meshing with the driving gear is fixedly sleeved on the outer peripheral wall of the drilling cylinder.

[0011] Further, a plurality of soil-breaking teeth are uniformly arranged along the circumferential direction on the outer peripheral wall of the lower end conical structure of the drilling cylinder.

[0012] Further, an annular installation bin is fixedly arranged inside the drilling cylinder at a position above the plurality of soil inlet holes. Miniature electric telescopic rods are respectively fixedly arranged in the installation bin at positions corresponding to the respective soil inlet holes. The telescopic ends of the respective miniature electric telescopic rods penetrate through the bottom plate of the installation bin and are respectively fixedly provided with sealing hole baffles adapted to the corresponding soil inlet holes.

[0013] Further, the sampling mechanism includes a rotating shaft whose upper end is rotationally connected to the top plate of the sampling cylinder. The lower end of the rotating shaft extends into the interior of the drilling cylinder and is close to the position of the plurality of soil inlet holes. A sampling spiral blade is sleeved on the outer peripheral wall of the rotating shaft. A third motor for driving the rotation of the rotating shaft is fixedly arranged on the upper part of the sampling cylinder.

[0014] Further, a sampling mechanism is further included. The sampling mechanism includes a vertical mounting plate fixedly arranged at one end of the upper part of the trolley away from the two connecting rods. A horizontal adjusting cylinder is fixedly arranged on the vertical mounting plate. The telescopic end of the adjusting cylinder is fixedly connected to the side part of an L-shaped mounting frame. A sample collecting cylinder is arranged on the upper part of the mounting frame. The sample collecting cylinder is of an upper opening structure.

[0015] Further, two slide rails are symmetrically and fixedly arranged along the adjusting cylinder on the upper part of the trolley, and two sliders respectively adapted to the two slide rails are symmetrically arranged at the bottom of the mounting frame.

[0016] Still further, a fourth motor is fixedly arranged at the bottom of the top plate of the mounting frame. The driving shaft of the fourth motor penetrates through the top plate of the mounting frame. A connecting sleeve for connecting with the driving shaft of the fourth motor is fixedly arranged at the bottom of the sampling cylinder. A plurality of sampling grooves are uniformly arranged along the circumference inside the sampling cylinder.

[0017] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0018] When the present invention is working, the drilling cylinder is driven to rotate by the second motor. At the same time, the first motor drives the lifting table to drive the drilling cylinder to move vertically downward through the transmission of the lead screw and the lead screw sleeve. Under the action of the soil-breaking teeth and the drilling spiral blades on the drilling cylinder, the drilling cylinder drills downward along the soil surface. Before drilling to a specific depth of the formation, each micro electric telescopic rod of the installation bin drives each sealing hole baffle to move upward so as to open each soil inlet hole. During the process of the drilling cylinder continuing to drill to the designated depth, the soil at this position of the formation enters the inside of the drilling cylinder through the soil inlet hole. The third motor drives the rotating shaft to rotate. During the process of the sampling spiral blade rotating together with the rotating shaft, the soil entering the inside of the drilling cylinder is conveyed upward in a spiral conveying manner to the sampling cylinder located above the drilling cylinder and is led out through the outlet pipe outside the sampling cylinder. After the soil sample collection at this formation depth is completed, each soil inlet hole is closed, and the above steps are repeated to continue drilling downward until reaching the next designated depth and then opening each soil inlet hole again to complete the stratified sampling operation of soils at different depths, which is beneficial to ensuring the data accuracy of the geological evaluation soil sample detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 is the overall external structure schematic diagram of the present invention;

[0021] Figure 2 is the front view structure schematic diagram of the present invention;

[0022] Figure 3 is Figure 2 the sectional view along the A-A direction in

[0023] Figure 4 is Figure 3 the enlarged structure schematic diagram at position B in

[0024] Figure 5 is the connection schematic diagram of the drilling cylinder of the present invention;

[0025] Figure 6 Schematic diagram of the sample collection cylinder structure of the present invention;

[0026] Explanation of reference numerals: 1, trolley; 2, wheels; 3, push handle; 4, connecting rod; 5, horizontal mounting plate; 6, lifting table; 7, lead screw; 8, first motor; 9, lead screw sleeve; 10, drilling cylinder; 11, avoidance hole; 12, second motor; 13, driving gear; 14, driven gear; 15, drilling spiral blade; 16, soil-breaking teeth; 17, soil inlet hole; 18, installation bin; 19, micro electric telescopic rod; 20, sealing hole baffle; 21, sampling cylinder; 22, connecting frame; 23, outlet pipe; 24, rotating shaft; 25, sampling spiral blade; 26, third motor; 27, vertical mounting plate; 28, adjusting cylinder; 29, mounting frame; 30, sample collection cylinder; 31, slide rail; 32, slider; 33, fourth motor; 34, connecting sleeve; 35, connecting bolt; 36, sample collection groove. Specific implementation mode

[0027] As Figures 1 - 6 shown, a soil sampling and testing device for geological assessment includes a trolley 1. At the four corner positions of the bottom of the trolley 1, wheels 2 are respectively rotatably installed. On the outer side of one end of the upper part of the trolley 1, a push handle 3 is fixedly installed. Through the arrangement of a plurality of wheels 2 and the push handle 3, it is convenient to move the trolley 1.

[0028] At a position close to the push handle 3 on one end of the upper part of the trolley 1, two vertical connecting rods 4 are symmetrically and fixedly arranged. The upper parts of the two connecting rods 4 are fixedly connected to the bottom of a horizontal mounting plate 5 together. A lifting table 6 is slidably installed on the two connecting rods 4 together. Two light holes respectively slidably matched with the two connecting rods 4 are opened on the lifting table 6. A feed driving mechanism for driving the lifting table 6 to move up and down is arranged between the horizontal mounting plate 5 and the upper part of the trolley 1.

[0029] In this embodiment, the feed driving mechanism includes a lead screw 7 vertically and rotatably installed between the horizontal mounting plate 5 and the trolley 1. A first motor 8 for driving the lead screw 7 to rotate is fixedly installed on the upper part of the horizontal mounting plate 5; a lead screw sleeve 9 threadedly connected to the lead screw 7 is fixedly installed on the lifting table 6. When the first motor 8 drives the lead screw 7 to rotate, since the lead screw sleeve 9 maintains a threaded engagement relationship with the lead screw 7, the lead screw sleeve 9 drives the lifting table 6 to perform a linear motion in the vertical direction.

[0030] One end of the lifting platform 6 away from the two connecting rods 4 is rotatably installed with a drilling cylinder 10, and an avoidance hole 11 for the drilling cylinder 10 to pass through is formed on the trolley 1. The part of the drilling cylinder 10 near the upper end is rotatably connected to the lifting platform 6, and a rotary drive mechanism for driving the rotation of the drilling cylinder is arranged at the bottom of the lifting platform 6.

[0031] In this embodiment, the rotary drive mechanism includes a second motor 12 fixedly installed at the bottom of the lifting platform 6. A driving gear 13 is installed on the driving shaft of the second motor 12, and a driven gear 14 meshing with the driving gear 13 is fixedly sleeved on the outer peripheral wall of the drilling cylinder 10. After starting the second motor 12, the drilling cylinder 10 is driven to rotate axially through the meshing transmission of the driving gear 13 and the driven gear 14.

[0032] A drilling spiral blade 15 is fixedly sleeved on the outer peripheral wall of the drilling cylinder 10. The lower end of the drilling cylinder 10 is of a pointed cone structure, and a plurality of soil-breaking teeth 16 are uniformly arranged along the circumferential direction on the outer peripheral wall of the pointed cone structure at the lower end of the drilling cylinder 10. When the soil-breaking teeth 16 rotate together with the drilling cylinder 10, the soil-breaking performance and drilling efficiency can be improved.

[0033] A plurality of soil inlet holes 17 communicating with the inside thereof are uniformly formed in the circumferential direction on the circumferential wall of the drilling cylinder 10 near its lower end. In this embodiment, an annular installation bin 18 is fixedly arranged inside the drilling cylinder 10 at a position above the plurality of soil inlet holes 17. Miniature electric telescopic rods 19 are fixedly installed in the installation bin 18 at positions corresponding to the respective soil inlet holes 17. The plurality of miniature electric telescopic rods 19 are powered by a storage battery arranged inside the installation bin 18. The telescopic ends of the respective miniature electric telescopic rods 19 penetrate through the bottom plate of the installation bin 18 and are respectively fixedly connected with sealing baffle plates 20 adapted to the corresponding soil inlet holes 17. The telescopic movement of the sealing baffle plates 20 driven by the respective miniature electric telescopic rods 19 can block or open the respective soil inlet holes 17.

[0034] A sampling cylinder 21 is arranged at the upper end of the drilling cylinder 10. The inner circumference of the lower end of the sampling cylinder 21 is in rotational fit with the outer circumference of the upper end of the drilling cylinder 10. The middle of the outer peripheral wall of the sampling cylinder 21 is fixedly connected with the upper part of the lifting platform 6 through two L-shaped connecting frames 22. A sampling mechanism is arranged between the sampling cylinder 21 and the plurality of soil inlet holes 17. A lead-out pipe 23 communicating with the inside thereof is arranged on the outer peripheral wall of the sampling cylinder 21 and inclined downward.

[0035] In this embodiment, the sampling mechanism includes a rotating shaft 24 whose upper end is rotatably connected to the top plate of the sampling cylinder 21. The lower end of the rotating shaft 24 extends into the interior of the drilling cylinder 10 and is close to the positions of the plurality of soil inlet holes 17. A sampling spiral blade 25 is sleeved on the entire outer peripheral wall of the rotating shaft 24. A third motor 26 for driving the rotation of the rotating shaft 24 is fixedly installed on the upper part of the sampling cylinder 21.

[0036] When the present invention is in operation, after the trolley is moved to the designated position, the second motor drives the rotation of the drilling cylinder. At the same time, the first motor drives the lifting table to drive the drilling cylinder to move vertically downward through the transmission of the lead screw and the lead screw sleeve. Under the action of the soil-breaking teeth and the drilling spiral blade on the drilling cylinder, the drilling cylinder drills downward along the soil layer surface. Before drilling to a specific depth of the formation, each micro electric telescopic rod of the installation bin drives each sealing hole baffle to move upward, so that each soil inlet hole is opened. During the process of the drilling cylinder continuing to drill to the designated depth, the soil at this position of the formation enters the interior of the drilling cylinder through the soil inlet holes. At the same time, the third motor drives the rotation of the rotating shaft. During the rotation of the sampling spiral blade along with the rotating shaft, the soil entering the interior of the drilling cylinder is conveyed upward in a spiral conveying manner to the sampling cylinder located above the drilling cylinder, and is led out through the lead-out pipe on the outside of the sampling cylinder. The staff can collect the soil sample at the lower end of the lead-out pipe.

[0037] As a further improvement to this embodiment, the present invention further includes a sampling mechanism. The sampling mechanism includes a vertical mounting plate 27 fixedly arranged at one end of the upper part of the trolley 1 away from the two connecting rods 4. A horizontal adjusting cylinder 28 is fixedly installed on the vertical mounting plate 27. The telescopic end of the adjusting cylinder 28 is fixedly connected to the side part of an L-shaped mounting frame 29. A sample collecting cylinder 30 is installed on the upper part of the mounting frame 27. The sample collecting cylinder 30 has an upper opening structure. When the lead-out pipe leads out the soil sample, the adjusting cylinder can be extended to move the mounting frame and the sample collecting cylinder to the lower end of the lead-out pipe, so that the sample automatically falls into the sample collecting cylinder under the action of gravity.

[0038] Two slide rails 31 are symmetrically and fixedly installed on the upper part of the trolley 1 along the adjusting cylinder 28. Two sliders 32 respectively adapted to the two slide rails 31 are symmetrically installed at the bottom of the mounting frame 29. Through the limiting and matching action of the two sliders 32 and the slide rails 31, the smooth movement of the mounting frame 29 is ensured.

[0039] In addition, a fourth motor 33 is fixedly installed at the bottom of the top plate of the mounting bracket 29, and the drive shaft of the fourth motor 33 penetrates through the top plate of the mounting bracket 29. A connecting sleeve 34 is fixedly arranged at the bottom of the sampling cylinder 30, and the connecting sleeve 34 is sleeved on the drive shaft of the fourth motor 33 and is detachably connected to the drive shaft of the fourth motor 33 through a connecting bolt 35. A plurality of sampling grooves 36 are uniformly arranged along the circumferential direction inside the sampling cylinder 33. When the outlet pipe of the sampling mechanism sequentially discharges the soil samples collected at different drilling depths downward, the fourth motor can drive the sampling cylinder to rotate, so that each sampling groove is sequentially aligned with the lower end of the outlet pipe, so that the plurality of sampling grooves can separately collect the soil samples of different depth strata collected by the sampling mechanism.

[0040] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A soil sampling and detection device for geological assessment, characterized in that: It comprises a trolley, wherein two vertical connecting rods are symmetrically fixedly arranged at one end of the upper part of the trolley, a horizontal mounting plate is fixedly arranged on the upper part of the two connecting rods, a lifting platform is slidingly arranged on the two connecting rods, two light holes are provided on the lifting platform, which are respectively slidably matched with the two connecting rods, and a feed driving mechanism for driving the lifting platform to move up and down is arranged between the horizontal mounting plate and the upper part of the trolley; A drilling tube is rotatably provided at one end of the lifting platform away from the two connecting rods, and a avoidance hole for the passage of the drilling tube is provided on the trolley; the portion of the drilling tube close to the upper end is rotatably connected to the lifting platform, and a rotating drive mechanism for driving the drilling tube to rotate is provided at the bottom of the lifting platform; a drilling spiral blade is fixedly sleeved on the outer peripheral wall of the drilling tube, the lower end of the drilling tube is a pointed cone structure, and a plurality of soil entry holes are uniformly provided on the peripheral wall of the drilling tube near its lower end along the circumferential direction; A sampling cylinder is provided at the upper end of the drilling cylinder, and the inner periphery of the lower end of the sampling cylinder is rotatably matched with the outer periphery of the upper end of the drilling cylinder. The middle of the outer peripheral wall of the sampling cylinder is fixedly connected to the upper part of the lifting platform through two L-shaped connecting frames. A sampling mechanism is provided between the sampling cylinder and the plurality of soil entry holes, and a guide tube connected to the interior of the sampling cylinder is provided on the outer peripheral wall of the sampling cylinder in a downwardly inclined manner.

2. The soil sampling and detection device for geological assessment according to claim 1, characterized in that: Wheels are rotatably arranged at the four corners of the bottom of the trolley, and a push handle is fixedly arranged on the outer sides of the two connecting rods at the upper part of the trolley.

3. The soil sampling and detection device for geological assessment according to claim 1, characterized in that: The feed drive mechanism includes a screw rod which is vertically rotatably arranged between the horizontal mounting plate and the trolley, a first motor for driving the screw rod to rotate is fixedly arranged on the upper part of the horizontal mounting plate; a screw rod sleeve which is threadably connected to the screw rod is fixedly arranged on the lifting platform.

4. The soil sampling and detection device for geological assessment according to claim 1, characterized in that: The rotary drive mechanism comprises a second motor fixedly arranged at the bottom of the lifting platform, a driving gear is arranged on the driving shaft of the second motor, and a driven gear meshing with the driving gear is fixedly sleeved on the outer peripheral wall of the drilling tube.

5. The soil sampling and detection device for geological assessment according to claim 1, characterized in that: A plurality of earth-breaking teeth are evenly arranged on the outer peripheral wall of the pointed cone-shaped structure at the lower end of the drilling tube along the circumferential direction.

6. The soil sampling and detection device for geological assessment according to claim 5, characterized in that: An installation bin with a circular cross-section is fixedly provided inside the drilling tube at a position above the plurality of soil entry holes, and micro electric telescopic rods are fixedly provided in the installation bin at positions corresponding to the respective soil entry holes, and the telescopic ends of the micro electric telescopic rods pass through the bottom plate of the installation bin and are respectively fixedly provided with sealing baffles adapted to the corresponding soil entry holes.

7. The soil sampling and detection device for geological assessment according to claim 1, characterized in that: The sampling mechanism includes a rotating shaft whose upper end is rotatably connected to the top plate of the sampling tube, the lower end of the rotating shaft extends to the interior of the drilling tube and is close to the plurality of soil entry holes, a sampling spiral blade is sleeved on the outer peripheral wall of the rotating shaft, and a third motor for driving the rotating shaft to rotate is fixedly arranged on the upper part of the sampling tube.

8. The soil sampling and detection device for geological assessment according to claim 1, characterized in that: It also includes a sampling mechanism, which includes a vertical mounting plate fixedly arranged on the upper part of the trolley at one end away from the two connecting rods, a horizontal adjusting cylinder fixedly arranged on the vertical mounting plate, a telescopic end of the adjusting cylinder fixedly connected to the side of a mounting frame with an L-shaped cross-section, a sample collecting tube is arranged on the upper part of the mounting frame, and the sample collecting tube is an upper opening structure.

9. The soil sampling and detection device for geological assessment according to claim 8, characterized in that: Two slide rails are symmetrically fixedly arranged on the upper part of the trolley along the regulating cylinder, and two sliding blocks respectively matched with the two slide rails are symmetrically arranged on the bottom of the mounting frame.

10. The soil sampling and detection device for geological assessment according to claim 8, characterized in that: A fourth motor is fixedly arranged at the bottom of the top plate of the mounting frame, and a driving shaft of the fourth motor passes through the top plate of the mounting frame. A connecting sleeve for connecting to the driving shaft of the fourth motor is fixedly arranged at the bottom of the sample collecting tube, and a plurality of sample collecting grooves are evenly arranged along the circumferential direction inside the sample collecting tube.

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