A drilling and layered soil sampling device for soil testing

Abstract

The present invention relates to the technical field of soil detection and sampling, and discloses a drilling and layered soil sampling device for soil detection, comprising a base, a column disposed above the base, the column being rotatably mounted on the base via a rotating seat, a lift frame being disposed on the column, a first motor being mounted on the lift frame, a second motor being mounted on the base, a driving gear being fixed to the output shaft of the second motor, a driven gear being fixedly sleeved on the rotating seat, and the driving gear and the driven gear being meshed. The present invention achieves automatic alignment of the sampling drill core and the sample canister by driving the rotating seat with the second motor, and by combining the design of the push rod and the push plate, the soil in the sampling drill core can be easily pushed into the sample canister, thereby achieving automatic sample collection and automating the entire sampling and sample collection process.

Description

Technical Field

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

[0002] The drilling and layered soil sampling device for soil testing is a professional equipment used to collect soil samples at different depths. Its core function is to drill deep underground and obtain soil samples in layers to support soil quality analysis, environmental monitoring or geological research.

[0003] A search revealed that Chinese patent publication number CN113740104A discloses a stratified sampling device for soil testing and sampling, comprising a handle frame, a drive device, and a sampling device. The handle frames are two in number and are symmetrically mounted on the upper end of the drive device. The sampling device is detachably mounted on the lower end of the drive device. This solution can address the problem of poor sampling performance in stratified soil sampling with existing equipment. However, in actual use, this solution still has the following deficiencies:

[0004] The above solution does not have the function of removing the soil after sampling. After sampling is completed, the staff needs to manually remove the soil sample from the sampling drill core and then store the soil sample in the sample container. The manual sampling process requires peeling off the soil in the drill core layer by layer, especially for deep or compacted soil layers, which takes a lot of time and physical strength. For example, if single-point stratified sampling involves multiple depth layers, manual operation may extend the single-point sampling time, resulting in a significant increase in the overall detection cycle, affecting the project progress.

[0005] Therefore, it is necessary to design a drilling and layered soil sampling device for soil testing to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a drilling and layered soil sampling device for soil detection.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A drilling and layered soil sampling device for soil testing comprises a base, a column is provided above the base, the column is rotatably mounted on the base via a rotating seat, a lifting frame is provided on the column, a first motor is mounted on the lifting frame, a second motor is mounted on the base, a driving gear is fixed to the output shaft of the second motor, a driven gear is fixedly sleeved on the rotating seat, and the driving gear meshes with the driven gear;

[0009] A sampling assembly and a mounting assembly are provided above the base. The sampling assembly includes a sampling drill core. The mounting assembly includes a fixed plate and a rotating cylinder. The fixed plate is fixed on the lifting frame. The rotating cylinder is rotatably mounted on the fixed plate. The sampling drill core is assembled in the rotating cylinder.

[0010] A sample storage assembly and a rotating assembly are provided on the base. The sample storage assembly includes a rotating shaft, several mounting plates and several sample tanks. The rotating shaft is rotatably mounted on the top surface of the base. Several mounting plates are fixed on the outer circumference of the rotating shaft. Several sample tanks are respectively connected to several mounting plates. The rotating assembly is used to drive the rotating shaft to rotate.

[0011] As a preferred technical solution of the present invention, the sampling assembly also includes a fixed cylinder, a push plate and a push rod. The fixed cylinder is fixed at the top of the sampling drill core, and the fixed cylinder is communicated with the interior of the sampling drill core. The push plate is slidably arranged inside the sampling drill core. The push rod passes through the fixed cylinder and slides in the fixed cylinder. The bottom end of the push rod is fixedly connected to the push plate. The top end of the push rod is connected to the fixed cylinder by a first spring. The top end of the fixed cylinder is provided with two opposite slots.

[0012] As a preferred technical solution of the present invention, the mounting assembly also includes a first gear, a second gear and two clamping plates, the first gear is fixedly sleeved on the rotating cylinder, the second gear is fixedly sleeved on the output shaft of motor one, and the second gear is meshed with the first gear, the two clamping plates are arranged inside the rotating cylinder, the sides of the two clamping plates that are close to each other are fixed with clamping blocks, the sides of the two clamping plates that are away from each other are fixed with fixing rods, the two fixing rods pass through the rotating cylinder and are slidably connected to the rotating cylinder, the ends of the two fixing rods that are away from each other are fixed with end caps, each end cap is connected to the rotating cylinder by a second spring, and the two clamping blocks are provided with inclined surfaces, and the two inclined surfaces are arranged opposite to each other.

[0013] As a preferred technical solution of the present invention, the rotating assembly includes a sliding rod, a slider, a first rack, a third gear, a first eccentric wheel and a control structure, the sliding rod is fixed on the top surface of the base, the slider is slidably mounted on the sliding rod, the third gear is fixedly mounted on the rotating shaft, the first rack is arranged on one side of the slider, an outer cylinder is fixed to the side of the slider, an inner rod is slidably arranged in the outer cylinder, one end of the inner rod extends to the outside of the outer cylinder and is connected to the first rack, the slider is connected to the base by a tension spring, the cross bar is fixed to the side of the slider, the first eccentric wheel is fixedly mounted on the rotating seat, and the first eccentric wheel is arranged opposite the cross bar.

[0014] As a preferred technical solution of the present invention, the control structure includes two magnetic blocks 1 and two magnetic blocks 2, the two magnetic blocks 1 are respectively fixed at the two ends of the first rack, and the two magnetic blocks 2 are fixed to the base through a connecting rod.

[0015] As a preferred technical solution of the present invention, the outer surface of the inner rod is in contact with the inner surface of the outer tube, and both the inner rod and the outer tube are made of rubber material.

[0016] As a preferred technical solution of the present invention, a positioning assembly is provided on the rotating cylinder, and the positioning assembly provides positioning for the two clamping plates. A vibration assembly is provided on the side of the column, and an air supply assembly is provided on the base.

[0017] The positioning assembly includes a positioning ring, two grooves, two positioning rods and a magnetic ring. The positioning ring is slidably mounted on the rotating cylinder. The two grooves are both opened on the bottom surface of the positioning ring. The two positioning rods are respectively fixed on the two end caps. The magnetic ring is fixedly mounted on the rotating cylinder, and the magnetic ring is located above the positioning ring. The positioning ring is made of magnetic material.

[0018] As a preferred technical solution of the present invention, the vibration assembly includes a connecting frame, a rotating rod, a fourth gear, a second rack, a second eccentric wheel and a telescopic rod. The connecting frame is fixed to the side of the column, the rotating rod passes through the connecting frame and is rotatably connected to the connecting frame, the fourth gear is fixedly sleeved at the bottom end of the rotating rod, the second eccentric wheel is fixedly sleeved at the top end of the rotating rod, the telescopic rod is fixed on the connecting frame, the second rack is meshed with the fourth gear, the telescopic rod is composed of a cylinder and a rod body, the cylinder is fixed on the connecting frame, the rod body is sealed and slidably connected in the cylinder, and the rod body serves as a telescopic part and is connected to the second rack.

[0019] As a preferred technical solution of the present invention, the air supply assembly includes a side plate, a reciprocating screw, a lifting plate and an airbag. The side plate is fixed to the top surface of the base, the reciprocating screw is rotatably installed on the side of the side plate through two bearing seats, the lifting plate is threadedly sleeved on the reciprocating screw, and the lifting plate is located between the two bearing seats, one end of the airbag is connected to the bearing seat at the upper end, and the other end of the airbag is connected to the lifting plate. The airbag and the barrel of the telescopic rod are connected through a connecting pipe, and the bottom end of the reciprocating screw is connected to the end of the output shaft of motor 2.

[0020] As a preferred technical solution of the present invention, the plurality of sample tanks are distributed in a circumferential array around the rotating axis.

[0021] The present invention has the following beneficial effects:

[0022] 1. The rotating seat is driven by motor 2 to rotate, realizing automatic alignment between the sampling drill core and the sample tank. Combined with the design of the push rod and push plate, the soil in the sampling drill core can be easily pushed into the sample tank, realizing automatic collection of samples. The entire sampling and sample collection process is automated, reducing manual operations, reducing operational difficulty and labor intensity. In addition, the fast and efficient sampling and sample collection process shortens the project cycle, reduces project costs, and improves overall efficiency.

[0023] 2. The ingenious coordination between the first rack and the third gear, as well as the principle of opposite magnets attracting each other, enables the sample tank to automatically change position after the sampling drill core completes a soil discharge, eliminating the need for manual adjustment and greatly improving work efficiency.

[0024] 3. The design of the vibration component makes the sampling drill core vibrate through the knocking action of the second eccentric wheel, effectively loosening the internal soil and making it easier for the push plate to completely push the soil out;

[0025] 4. During the soil discharge process, the staff will move the positioning ring upward in advance to remove the restriction on the positioning rod, so that the card plate and the sampling drill core form an elastic vibration system under the impact of the second eccentric wheel. This larger-amplitude vibration can effectively break the adhesion between soil particles, fully loosen the compacted soil layer, significantly reduce the resistance of the push plate operation, and ensure the complete detachment of the soil sample. At the same time, this design restores the rigid constraint on the card plate through the positioning ring reset during the sampling stage, ensuring the synchronization of the sampling drill core with the rotating drum under high-speed rotation, avoiding sampling trajectory deviation or drill core loosening due to vibration, and taking into account both sampling accuracy and soil discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of a drilling and layered soil sampling device for soil testing proposed by the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the structure of a drilling and layered soil sampling device for soil testing proposed by the present invention. Figure 2 ;

[0028] Figure 3 for Figure 1 A magnified view of the structure at point A;

[0029] Figure 4 This is a schematic diagram of the structure when the sampling drill core is facing one of the sample tanks;

[0030] Figure 5 It is an enlarged structural diagram of the sampling component and the installation component;

[0031] Figure 6 for Figure 5 A magnified view of the structure at point B;

[0032] Figure 7 It is a schematic diagram of the cross-sectional structure of the sampling component;

[0033] Figure 8 for Figure 7 A magnified view of the structure at point C;

[0034] Figure 9 Schematic diagram of the sample storage component Figure 1 ;

[0035] Figure 10 Schematic diagram of the sample storage component Figure 2 .

[0036] In the figure: 11, base; 12, column; 13, lifting frame; 14, motor 1; 15, rotating seat; 16, first eccentric wheel; 17, motor 2; 18, driving gear; 19, driven gear; 21, sampling drill core; 22, fixed cylinder; 23, push plate; 24, push rod; 25, first spring; 26, clamping groove; 31, fixed plate; 32, rotating cylinder; 33, first gear; 34, second gear; 35, clamping plate; 36, clamping block; 37, fixing rod; 38, end cap; 39, second spring; 41, positioning ring; 42, groove; 43, Positioning rod; 44, magnetic ring; 51, rotating shaft; 52, mounting plate; 53, sample tank; 54, sliding rod; 55, slider; 56, tension spring; 57, cross bar; 58, outer tube; 59, inner rod; 510, first rack; 511, third gear; 512, magnetic block one; 513, magnetic block two; 514, connecting rod; 61, connecting frame; 62, rotating rod; 63, fourth gear; 64, second rack; 65, second eccentric wheel; 66, telescopic rod; 67, side plate; 68, reciprocating screw; 69, lifting plate; 610, air bag; 611, connecting pipe. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Reference Figures 1-10 A drilling and layered soil sampling device for soil testing includes a base 11, a column 12 is provided above the base 11, and the column 12 is rotatably mounted on the base 11 via a rotating base 15. A lift frame 13 is provided on the column 12, and a motor 14 is installed on the lift frame 13. A motor 2 17 is installed on the base 11, and a driving gear 18 is fixed to the output shaft of the motor 2 17. A driven gear 19 is fixedly sleeved on the rotating base 15, and the driving gear 18 is meshed with the driven gear 19.

[0039] A sampling assembly and a mounting assembly are provided above the base 11. The sampling assembly includes a sampling drill core 21. The mounting assembly includes a fixed plate 31 and a rotating cylinder 32. The fixed plate 31 is fixed to the lifting frame 13. The rotating cylinder 32 is rotatably mounted on the fixed plate 31. The sampling drill core 21 is assembled in the rotating cylinder 32. The sampling assembly also includes a fixed cylinder 22, a push plate 23 and a push rod 24. The fixed cylinder 22 is fixed to the top of the sampling drill core 21 (such as Figure 7 As shown), the fixed cylinder 22 is connected to the interior of the sampling drill core 21, the push plate 23 is slidably arranged inside the sampling drill core 21, the push rod 24 passes through the fixed cylinder 22 and slides in the fixed cylinder 22, the bottom end of the push rod 24 is fixedly connected to the push plate 23, and the top end of the push rod 24 is connected to the fixed cylinder 22 via a first spring 25. The top end of the fixed cylinder 22 is provided with two oppositely arranged slots 26;

[0040] The mounting assembly further includes a first gear 33, a second gear 34 and two clamping plates 35. The first gear 33 is fixedly sleeved on the rotating cylinder 32, the second gear 34 is fixedly sleeved on the output shaft of the motor 14, and the second gear 34 is meshed with the first gear 33. The two clamping plates 35 are both arranged inside the rotating cylinder 32. The sides of the two clamping plates 35 that are close to each other are fixed with clamping blocks 36. The sides of the two clamping plates 35 that are away from each other are fixed with fixing rods 37. The two fixing rods 37 pass through the rotating cylinder 32 and are slidably connected to the rotating cylinder 32. The ends of the two fixing rods 37 that are away from each other are fixed with end caps 38. Each end cap 38 is connected to the rotating cylinder 32 by a second spring 39. The two clamping blocks 36 are both provided with inclined surfaces, and the two inclined surfaces are arranged opposite to each other.

[0041] A positioning assembly is provided on the rotating cylinder 32, which provides positioning for the two clamping plates 35. A vibration assembly is provided on the side of the column 12, and an air supply assembly is provided on the base 11. The positioning assembly includes a positioning ring 41, two grooves 42, two positioning rods 43 and a magnetic ring 44. The positioning ring 41 is slidably mounted on the rotating cylinder 32. The two grooves 42 are both provided on the bottom surface of the positioning ring 41. The two positioning rods 43 are respectively fixed on the two end caps 38. The magnetic ring 44 is fixedly mounted on the rotating cylinder 32 and is located above the positioning ring 41. The positioning ring 41 is made of magnetic material.

[0042] When the drilling layered soil sampling device for soil testing proposed by the present invention is in use, the staff first installs the sampling drill core 21 on the rotating cylinder 32. Specifically, the staff inserts the fixed cylinder 22 from the bottom end of the rotating cylinder 32. During the insertion process, the fixed cylinder 22 will squeeze the inclined surfaces of the two blocks 36, so that the two blocks 36 move away from each other. When the two slots 26 on the fixed cylinder 22 move to a position facing the two blocks 36, the two blocks 36 will approach each other under the elastic force of the two second springs 39 and respectively snap into the two slots 26. At this time, the two blocks 36 and the two slots 26 fix the fixed cylinder 22. When the fixed cylinder 22 is fixed, the sampling drill core 21 is fixed accordingly. It should be noted that during the installation of the sampling drill core 21, the positioning ring 41 is adsorbed on the magnetic ring 44. At this time, the two The two positioning rods 43 are located outside the two grooves 42, that is, the positioning ring 41 does not provide a limit for the two positioning rods 43, which allows the two blocking blocks 36 to slide freely, so that the fixing cylinder 22 is fixed in the rotating cylinder 32. After fixing the sampling drill core 21, the staff pulls down the positioning ring 41 and makes the two positioning rods 43 respectively engage in the two grooves 42. At this time, the positioning ring 41 provides a limit for the two positioning rods 43, and the positions of the two clamping plates 35 will be fixed. In this case, the two clamping plates 35 can drive the fixing cylinder 22 to rotate through the two blocking blocks 36. In addition, under the limiting action of the positioning ring 41, the sampling drill core 21 can only rotate in the axial direction during the sampling process and cannot deviate in the horizontal direction. This can ensure the stability of the sampling drill core 21 during the drilling process and avoid shaking of the sampling drill core 21 during the drilling process.

[0043] After the sampling drill core 21 is installed, soil sampling is then carried out. During the sampling process, the staff starts the motor 14. When the motor 14 is running, it can drive the rotating cylinder 32 to rotate through the first gear 33 and the second gear 34 that are meshed with each other, so that the sampling drill core 21 rotates accordingly. In addition, the downward movement of the sampling drill core 21 is driven by the lifting frame 13. When the lifting frame 13 moves downward, the sampling drill core 21 can be inserted into the soil to facilitate stratified sampling of the soil. It should be noted that the lifting method of the lifting frame 13 is a prior art, which is not shown in the figure and will not be described in detail here. In addition, the specific structure of the sampling drill core 21 is also a prior art and will not be described in detail here.

[0044] The base 11 is provided with a sample storage assembly and a rotating assembly. The sample storage assembly includes a rotating shaft 51, a plurality of mounting plates 52, and a plurality of sample tanks 53. The rotating shaft 51 is rotatably mounted on the top surface of the base 11. The plurality of mounting plates 52 are fixed to the outer circumference of the rotating shaft 51. The plurality of sample tanks 53 are respectively connected to the plurality of mounting plates 52. The plurality of sample tanks 53 are distributed in a circumferential array around the rotating shaft 51.

[0045] The rotating assembly is used to drive the rotating shaft 51 to rotate. The rotating assembly includes a slide bar 54, a slider 55, a first rack 510, a third gear 511, a first eccentric wheel 16 and a control structure. The slide bar 54 is fixed to the top surface of the base 11, the slider 55 is slidably sleeved on the slide bar 54, the third gear 511 is fixedly sleeved on the rotating shaft 51, the first rack 510 is arranged on one side of the slider 55, and an outer cylinder 58 is fixed to the side of the slider 55. An inner rod 59 is slidably provided in the outer cylinder 58. One end of the inner rod 59 extends to the outside of the outer cylinder 58 and is connected to the first rack 510. The outer surface of the inner rod 59 is connected to the inner surface of the outer cylinder 58. The inner rod 59 and the outer cylinder 58 are both made of rubber material, which prevents the first rack 510 from moving away from or approaching the slider 55 when not attracted or repelled by magnetic force. The slider 55 is connected to the base 11 by a tension spring 56. The cross bar 57 is fixed to the side of the slider 55. The first eccentric wheel 16 is fixedly sleeved on the rotating base 15, and the first eccentric wheel 16 is arranged opposite the cross bar 57. The control structure includes two magnetic blocks 512 and two magnetic blocks 513. The two magnetic blocks 512 are respectively fixed to the two ends of the first rack 510, and the two magnetic blocks 513 are fixed to the base 11 through a connecting rod 514.

[0046] After the sampling is completed, the staff controls the lifting frame 13 and the sampling drill core 21 to move up and reset. After the reset is completed, the staff starts the motor 2 17. When the motor 2 17 is running, it can drive the rotating base 15 to rotate through the mutually meshing driving gear 18 and the driven gear 19, and the column 12 on the rotating base 15 also rotates accordingly until the column 12 rotates 90 degrees. After the rotation action is completed, the sampling drill core 21 is rotated to the top of one of the sample tanks 53, as shown in FIG. Figure 4 In the state shown, in this case, the staff can press the push rod 24 downward, so that the push rod 24 drives the push plate 23 to move downward. When the push rod 24 moves downward, the soil inside the sampling drill core 21 can be pushed out, so that the soil falls into the sample tank 53 directly below it, thereby realizing automatic collection of the sample soil. There is no need to manually remove the soil from the sampling drill core 21, and the operation is convenient.

[0047] When the rotating seat 15 rotates under the action of the motor 2 17, the first eccentric wheel 16 on the rotating seat 15 will also rotate synchronously. In this process, the first eccentric wheel 16 will squeeze the cross bar 57. When the cross bar 57 is squeezed, it can drive the slider 55 to move. The slider 55 moves and can drive the first rack 510 to move through the outer cylinder 58 and the inner rod 59. For ease of understanding, this step is defined as the forward movement of the first rack 510. During the forward movement of the first rack 510, the first rack 510 will not mesh with the third gear 511, that is, the first rack 510 will not drive the third gear 511 to rotate. This is because there is a gap between the first rack 510 and the third gear 511 in the initial state. When the rotating seat 15 rotates 90° , the first rack 510 moves to the extreme position. In this case, the magnetic block 1 512 at one end of the first rack 510 is exactly opposite to one of the magnetic blocks 2 513, and for the magnetic block 1 512 and the magnetic block 2 513, the relative poles of the two are opposite poles. According to the principle of opposite poles attracting each other, the magnetic block 2 513 will generate a magnetic attraction to the magnetic block 1 512, which makes the magnetic block 1 512 drive the first rack 510 to move. At this time, the first rack 510 will move in the direction away from the slider 55 and move to a position facing the third gear 511. After taking out the soil inside the sampling drill core 21, the motor 2 17 drives the rotating seat 15 to reset. When the rotation is reset, the first eccentric wheel 16 is reset accordingly. In this process , the first eccentric wheel 16 no longer squeezes the cross bar 57. Without the squeezing effect of the first eccentric wheel 16, the slider 55 will also be reset under the action of the tension spring 56, which causes the first rack 510 to reset accordingly. For ease of understanding, this step is defined as the reverse movement of the first rack 510. When the first rack 510 is reset to the initial position, the magnetic block 1 512 at the other end of the first rack 510 is exactly opposite to the other magnetic block 2 513. For the magnetic block 1 512 and the magnetic block 2 513, the relative magnetic poles of the two are the same. According to the principle of like poles repel, the magnetic block 2 513 will generate a magnetic repulsive force on the magnetic block 1 512, which causes the magnetic block 1 512 to drive the first rack 510 to move. At this time, the first rack 510 will move toward the adjacent The first rack 510 is moved in the direction of the slider 55 to realize the automatic reset of the first rack 510. According to the above principle, since the first rack 510 is already facing the third gear 511, the first rack 510 will mesh with the third gear 511 during the reverse movement and drive the third gear 511 to rotate. When the third gear 511 rotates, it can drive the rotating shaft 51 to rotate, which makes the several sample cans 53 rotate synchronously. When the first rack 510 is reset to its position, the third gear 511 and the rotating shaft 51 rotate exactly 90°, thereby realizing the automatic replacement of the sample cans 53. Based on the above process, the first rack 510 will not mesh with the third gear 511 when moving forward, but will drive the third gear 511 to rotate when moving backward, so that the several sample cans 53 rotate synchronously.With this design, each time the sampling drill core 21 discharges soil, a new sample tank 53 will be located underneath it, eliminating the need to manually adjust the position of the sample tank 53.

[0048] The vibration assembly includes a connecting frame 61, a rotating rod 62, a fourth gear 63, a second rack 64, a second eccentric wheel 65 and a telescopic rod 66. The connecting frame 61 is fixed to the side of the column 12. The rotating rod 62 passes through the connecting frame 61 and is rotatably connected to the connecting frame 61. The fourth gear 63 is fixedly sleeved on the bottom end of the rotating rod 62. The second eccentric wheel 65 is fixedly sleeved on the top end of the rotating rod 62. The telescopic rod 66 is fixed on the connecting frame 61. The second rack 64 is meshed with the fourth gear 63. The telescopic rod 66 consists of a cylinder and a rod body. The cylinder is fixed on the connecting frame 61. The rod body is sealed and slidably connected to the cylinder body. The rod body serves as a telescopic part and is connected to the second rack 64.

[0049] The air supply assembly includes a side plate 67, a reciprocating screw rod 68, a lifting plate 69 and an airbag 610. The side plate 67 is fixed to the top surface of the base 11. The reciprocating screw rod 68 is rotatably mounted on the side of the side plate 67 through two bearing seats. The lifting plate 69 is threadedly sleeved on the reciprocating screw rod 68, and the lifting plate 69 is located between the two bearing seats. One end of the airbag 610 is connected to the bearing seat at the upper end, and the other end of the airbag 610 is connected to the lifting plate 69. The airbag 610 is connected to the barrel of the telescopic rod 66 through a connecting pipe 611. The bottom end of the reciprocating screw rod 68 is connected to the end of the output shaft of the motor 2 17;

[0050] In order to ensure that the push plate 23 can smoothly push the soil out of the sampling drill core 21, the present invention has designed a vibration component and an air supply component. Specifically, when the rotating seat 15 and the sampling drill core 21 rotate under the action of the motor 2 17, the motor 2 17 can also synchronously drive the reciprocating screw 68 to rotate. When the reciprocating screw 68 rotates, it will drive the lifting plate 69 to reciprocate in the vertical direction. When the lifting plate 69 moves upward, the lifting plate 69 squeezes the air bag 610. At this time, the gas in the air bag 610 enters the cylinder in the telescopic rod 66 through the connecting pipe 611 and pushes the rod body to move. When the rod body moves, the second rack 64 moves accordingly, causing the second rack 64 to drive the fourth gear 63 to rotate. The fourth gear 63 can also drive the rotating rod 62 to rotate, and the second eccentric wheel 65 on the rotating rod 62 rotates accordingly. The second eccentric wheel 65 will continuously knock on the sampling drill core 21 during the rotation process. This continuous knocking force will cause the sampling drill core 21 to vibrate, and the soil inside it will also be vibrated. When the second eccentric wheel 65 strikes the sampling drill core 21, the sampling drill core 21 and the two clamping plates 35 can vibrate more significantly, thereby ensuring that the vibration has a loosening effect on the soil inside the sampling drill core 21. This design not only ensures the high-speed rotation stability of the sampling drill core 21 during the sampling process, but also enables the sampling drill core 21 to vibrate more significantly during the process of discharging the soil.

[0051] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A drilling and layered soil sampling device for soil detection, characterized in that: The invention comprises a base (11), a column (12) is provided above the base (11), the column (12) is rotatably mounted on the base (11) via a rotating seat (15), a lifting frame (13) is provided on the column (12), a motor (14) is installed on the lifting frame (13), a motor (17) is installed on the base (11), and a driving gear (18) is fixed to the output shaft of the motor (17), a driven gear (19) is fixedly provided on the rotating seat (15), and the driving gear (18) is meshed with the driven gear (19); A sampling assembly and a mounting assembly are provided above the base (11), the sampling assembly including a sampling drill core (21), the mounting assembly including a fixed plate (31) and a rotating cylinder (32), the fixed plate (31) being fixed on the lifting frame (13), the rotating cylinder (32) being rotatably mounted on the fixed plate (31), and the sampling drill core (21) being assembled in the rotating cylinder (32); A sample storage assembly and a rotating assembly are provided on the base (11), the sample storage assembly includes a rotating shaft (51), a plurality of mounting plates (52) and a plurality of sample tanks (53), the rotating shaft (51) is rotatably mounted on the top surface of the base (11), the plurality of mounting plates (52) are fixed on the outer peripheral surface of the rotating shaft (51), the plurality of sample tanks (53) are respectively connected to the plurality of mounting plates (52), and the rotating assembly is used to drive the rotating shaft (51) to rotate; The rotating assembly includes a slide bar (54), a slider (55), a first rack (510), a third gear (511), a first eccentric wheel (16) and a control structure. The slide bar (54) is fixed on the top surface of the base (11). The slider (55) is slidably sleeved on the slide bar (54). The third gear (511) is fixedly sleeved on the rotating shaft (51). The first rack (510) is arranged on one side of the slider (55). An outer cylinder is fixed on the side of the slider (55). (58), an inner rod (59) is slidably provided in the outer cylinder (58), one end of the inner rod (59) extends to the outside of the outer cylinder (58) and is connected to the first rack (510), the slider (55) and the base (11) are connected by a tension spring (56), the cross bar (57) is fixed to the side of the slider (55), the first eccentric wheel (16) is fixedly sleeved on the rotating seat (15), and the first eccentric wheel (16) is arranged opposite to the cross bar (57); The control structure includes two magnetic blocks (512) and two magnetic blocks (513), the two magnetic blocks (512) are respectively fixed at two ends of the first rack (510), and the two magnetic blocks (513) are fixed on the base (11) through a connecting rod (514); when the first rack (510) moves forward to the limit, one of the magnetic blocks (512) faces one of the magnetic blocks (513), and the relative magnetic poles of the two are opposite poles; when the first rack (510) is reset to the initial position, the other magnetic block (512) faces the other magnetic block (513), and the relative magnetic poles of the two are the same pole.

2. The drilling and layered soil sampling device for soil detection according to claim 1, characterized in that: The sampling assembly further includes a fixed cylinder (22), a push plate (23) and a push rod (24), wherein the fixed cylinder (22) is fixed to the top of the sampling drill core (21), and the fixed cylinder (22) is communicated with the interior of the sampling drill core (21), the push plate (23) is slidably arranged inside the sampling drill core (21), the push rod (24) passes through the fixed cylinder (22), and slides in the fixed cylinder (22), the bottom end of the push rod (24) is fixedly connected to the push plate (23), the top end of the push rod (24) is connected to the fixed cylinder (22) via a first spring (25), and the top end of the fixed cylinder (22) is provided with two oppositely arranged slots (26).

3. The drilling and layered soil sampling device for soil detection according to claim 1, characterized in that: The mounting assembly further comprises a first gear (33), a second gear (34) and two clamping plates (35), wherein the first gear (33) is fixedly sleeved on the rotating cylinder (32), the second gear (34) is fixedly sleeved on the output shaft of the motor 1 (14), and the second gear (34) is meshed with the first gear (33), and the two clamping plates (35) are both arranged inside the rotating cylinder (32), and the sides of the two clamping plates (35) close to each other are fixed with clamping blocks (36), and the sides of the two clamping plates (35) away from each other are fixed with fixing rods (37), and the two fixing rods (37) pass through the rotating cylinder (32) and are slidably connected to the rotating cylinder (32), and the ends of the two fixing rods (37) away from each other are fixed with end caps (38), and each end cap (38) is connected to the rotating cylinder (32) by a second spring (39), and the two clamping blocks (36) are both provided with inclined surfaces, and the two inclined surfaces are arranged opposite to each other.

4. The drilling and layered soil sampling device for soil detection according to claim 1, characterized in that: The outer surface of the inner rod (59) is fitted with the inner surface of the outer cylinder (58), and both the inner rod (59) and the outer cylinder (58) are made of rubber material.

5. The drilling and layered soil sampling device for soil detection according to claim 1, characterized in that: A positioning assembly is provided on the rotating cylinder (32), and the positioning assembly provides a positioning function for the two clamping plates (35). A vibration assembly is provided on the side of the column (12), and an air supply assembly is provided on the base (11); The positioning assembly includes a positioning ring (41), two grooves (42), two positioning rods (43) and a magnetic ring (44). The positioning ring (41) is slidably sleeved on the rotating cylinder (32). The two grooves (42) are both opened on the bottom surface of the positioning ring (41). The two positioning rods (43) are respectively fixed on the two end caps (38). The magnetic ring (44) is fixedly sleeved on the rotating cylinder (32), and the magnetic ring (44) is located above the positioning ring (41). The positioning ring (41) is made of magnetic material.

6. The drilling and layered soil sampling device for soil detection according to claim 5, characterized in that: The vibration assembly includes a connecting frame (61), a rotating rod (62), a fourth gear (63), a second rack (64), a second eccentric wheel (65) and a telescopic rod (66), wherein the connecting frame (61) is fixed to the side of the column (12), the rotating rod (62) passes through the connecting frame (61) and is rotatably connected to the connecting frame (61), the fourth gear (63) is fixedly sleeved on the bottom end of the rotating rod (62), the second eccentric wheel (65) is fixedly sleeved on the top end of the rotating rod (62), the telescopic rod (66) is fixed on the connecting frame (61), the second rack (64) is meshed with the fourth gear (63), and the telescopic rod (66) is composed of a cylinder and a rod body, the cylinder is fixed on the connecting frame (61), the rod body is sealingly slidably connected in the cylinder, and the rod body serves as a telescopic part and is connected to the second rack (64).

7. The drilling and layered soil sampling device for soil detection according to claim 6, characterized in that: The air supply assembly includes a side plate (67), a reciprocating screw rod (68), a lifting plate (69) and an air bag (610), wherein the side plate (67) is fixed to the top surface of the base (11), the reciprocating screw rod (68) is rotatably mounted on the side of the side plate (67) through two bearing seats, the lifting plate (69) is threadedly sleeved on the reciprocating screw rod (68), and the lifting plate (69) is located between the two bearing seats, one end of the air bag (610) is connected to the bearing seat at the upper end, and the other end of the air bag (610) is connected to the lifting plate (69), the air bag (610) and the cylinder of the telescopic rod (66) are connected through a connecting pipe (611), and the bottom end of the reciprocating screw rod (68) is connected to the end of the output shaft of the motor 2 (17).

8. The drilling and layered soil sampling device for soil detection according to claim 1, characterized in that: A plurality of sample tanks (53) are distributed in a circumferential array around the rotating shaft (51).

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