Drilling layered soil sampling device for soil detection

Abstract

The invention relates to the technical field of soil detection sampling, and discloses a drilling layered soil sampling device for soil detection, which comprises a base, a stand column is arranged above the base, the stand column is rotatably mounted on the base through a rotating seat, a liftable lifting frame is arranged on the stand column, a first motor is mounted on the lifting frame, and a second motor is mounted on the first motor. A second motor is installed on the base, a driving gear is fixed to an output shaft of the second motor, the rotating seat is fixedly sleeved with a driven gear, and the driving gear is meshed with the driven gear. The second motor drives the rotating base to rotate, automatic alignment of the sampling drill core and the sample tank is achieved, soil in the sampling drill core can be easily pushed out into the sample tank in cooperation with the design of the push rod and the push plate, automatic collection of samples is achieved, and automation of the whole sampling and sample collection process is achieved.

Description

Technical Field

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

[0002] A drilling and layered soil sampling device for soil detection is a professional device for collecting soil samples at different depths. Its core function is to drill deep into the ground and obtain soil samples layer by layer to support soil quality analysis, environmental monitoring, or geological research.

[0003] After retrieval, a Chinese patent with the publication number CN113740104A discloses a layered sampling device for soil detection and sampling, including a handle frame, a driving device, and a sampling device. The number of the handle frames is two, and the handle frames are symmetrically installed at the upper end of the driving device. The sampling device is detachably installed at the lower end of the driving device. The above solution can solve the problem of poor sampling effect when the existing equipment conducts layered sampling of soil. However, when the above solution is actually used, there are still the following deficiencies: The above solution does not have the function of taking out the sampled soil. After sampling is completed, the staff needs to manually take out the soil sample from the sampling core and then store the soil sample in a sample container. The manual sampling process requires layer-by-layer peeling of the soil in the core. Especially for deep or compact soil layers, it takes a lot of time and effort. For example, if single-point layered sampling involves multiple depth layers, manual operation may extend the single-point sampling time, resulting in a significant increase in the overall detection cycle and affecting the project progress.

[0004] Therefore, it is necessary to design a drilling and layered soil sampling device for soil detection to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and a drilling and layered soil sampling device for soil detection is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions: A drilling and layered soil sampling device for soil detection includes a base. An upright column is arranged above the base. The upright column is rotatably installed on the base through a rotating seat. An elevating frame that can be lifted is arranged on the upright column. A first motor is installed on the elevating frame. A second motor is installed on the base, and a driving gear is fixed to the output shaft of the second motor. A driven gear is fixedly sleeved on the rotating seat. The driving gear meshes with the driven gear; Above the base, a sampling component and a mounting component are provided. The sampling component includes a sampling core drill. The mounting component includes a fixing plate and a rotating cylinder. The fixing plate is fixed on the lifting frame. The rotating cylinder is rotatably mounted on the fixing plate. The sampling core drill is assembled in the rotating cylinder; On the base, a sample storage component and a rotating component are provided. The sample storage component includes a rotating shaft, a plurality of mounting plates and a plurality of sample cans. The rotating shaft is rotatably mounted on the top surface of the base. A plurality of the mounting plates are all fixed on the outer peripheral surface of the rotating shaft. A plurality of the sample cans are respectively connected to the plurality of mounting plates. The rotating component is used to drive the rotating shaft to rotate.

[0007] As a preferred technical solution of the present invention, the sampling component further includes a fixing cylinder, a push plate and a push rod. The fixing cylinder is fixed at the top end of the sampling core drill, and the fixing cylinder is communicated with the inside of the sampling core drill. The push plate is slidably arranged inside the sampling core drill. The push rod passes through the fixing cylinder and slides in the fixing 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 fixing cylinder through a first spring. Two oppositely arranged clamping grooves are formed at the top end of the fixing cylinder.

[0008] As a preferred technical solution of the present invention, the mounting component further 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 the first motor, and the second gear meshes with the first gear. The two clamping plates are both arranged inside the rotating cylinder. Clamping blocks are fixed on the side surfaces of the two clamping plates close to each other. Fixing rods are fixed on the side surfaces of the two clamping plates away from each other. The two fixing rods both pass through the rotating cylinder and are slidably connected to the rotating cylinder. End caps are fixed at the ends of the two fixing rods away from each other. A second spring is connected between each end cap and the rotating cylinder. Bevels are arranged on both of the two clamping blocks, and the two bevels are oppositely arranged.

[0009] As a preferred technical solution of the present invention, the rotating component includes a sliding rod, a sliding block, 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 sliding block is slidably sleeved on the sliding rod. The third gear is fixedly sleeved on the rotating shaft. The first rack is arranged on one side of the sliding block. An outer cylinder is fixed on the side surface of the sliding block. 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. A tension spring is connected between the sliding block and the base. A cross bar is fixed on the side surface of the sliding block. The first eccentric wheel is fixedly sleeved on the rotating seat, and the first eccentric wheel is arranged opposite to the cross bar.

[0010] As a preferred technical solution of the present invention, the control structure includes two first magnetic blocks and two second magnetic blocks. The two first magnetic blocks are respectively fixed at both ends of the first rack, and the two second magnetic blocks are both fixed on the base through connecting rods.

[0011] As a preferred technical solution of the present invention, the outer surface of the inner rod fits with the inner surface of the outer cylinder, and both the inner rod and the outer cylinder are made of rubber materials.

[0012] As a preferred technical solution of the present invention, a positioning component is provided on the rotating cylinder. The positioning component provides a positioning function for the two clamping plates. A vibration component is provided on the side of the column, and a gas supply component is provided on the base; The positioning component includes a positioning ring, two grooves, two positioning rods and a magnetic attraction ring. The positioning ring is slidably sleeved 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 attraction ring is fixedly sleeved on the rotating cylinder, and the magnetic attraction ring is located above the positioning ring. The positioning ring is made of a magnetic material.

[0013] As a preferred technical solution of the present invention, the vibration component 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 on 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 meshes with the fourth gear. The telescopic rod is composed of a cylinder body and a rod body. The cylinder body is fixed on the connecting frame. The rod body is hermetically and slidably connected in the cylinder body. The rod body serves as a telescopic part and is connected to the second rack.

[0014] As a preferred technical solution of the present invention, the gas supply component includes a side plate, a reciprocating lead screw, a lifting plate and an air bag. The side plate is fixed on the top surface of the base. The reciprocating lead screw is rotatably installed on the side of the side plate through two bearing seats. The lifting plate is threadedly sleeved on the reciprocating lead screw, and the lifting plate is located between the two bearing seats. One end of the air bag is connected to the upper bearing seat, and the other end of the air bag is connected to the lifting plate. The air bag is connected to the cylinder body of the telescopic rod through a communicating pipe. The bottom end of the reciprocating lead screw is connected to the end of the output shaft of the second motor.

[0015] As a preferred technical solution of the present invention, a plurality of the sample cans are circumferentially and arrayedly distributed around the rotating shaft.

[0016] The present invention has the following beneficial effects: 1. The rotating seat is driven by motor 2 to rotate, which realizes the automatic alignment of the sampling drill core and the sample tank. With the design of the push rod and the push plate, the soil in the sampling drill core can be easily pushed into the sample tank, realizing the automatic collection of samples. The entire sampling and sample collection process is automated, reducing manual operations, reducing operating 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; 2. The ingenious coordination between the first rack and the third gear, as well as the principle of opposite attraction between the magnetic blocks, enables the sample tank to automatically change position after the sampling drill core completes a soil discharge, without manual adjustment, which greatly improves work efficiency; 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; 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 cardboard and the sampling drill core will form an elastic vibration system under the impact of the second eccentric wheel. This larger vibration can effectively break the adhesion between soil particles, fully loosen the compacted soil layer, significantly reduce the operating resistance of the push plate, and ensure the complete detachment of the soil sample. At the same time, the design restores the rigid constraint on the cardboard 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 the deviation of the sampling trajectory or loosening of the drill core due to vibration, and taking into account both sampling accuracy and soil discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural diagram of a drilling and layered soil sampling device for soil detection proposed by the present invention Figure 1 ; Figure 2 A structural diagram of a drilling and layered soil sampling device for soil detection proposed by the present invention Figure 2 ; Figure 3 for Figure 1 A magnified view of the structure at A; Figure 4 This is a schematic diagram of the structure when the sampling drill core is facing one of the sample tanks; Figure 5 It is a schematic diagram of the enlarged structure of the sampling component and the installation component; Figure 6 for Figure 5 A magnified view of the structure at B; Figure 7 It is a schematic diagram of the cross-sectional structure of the sampling assembly; Figure 8 for Figure 7 A magnified view of the structure at C; Figure 9Schematic structure of the sample storage component Figure 1 ; Figure 10 Schematic structure of the sample storage component Figure 2 。

[0018] 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 core drill; 22, fixed cylinder; 23, push plate; 24, push rod; 25, first spring; 26, card slot; 31, fixing 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 attraction ring; 51, rotating shaft; 52, mounting plate; 53, sample tank; 54, sliding rod; 55, slider; 56, tension spring; 57, cross bar; 58, outer cylinder; 59, inner rod; 510, first rack; 511, third gear; 512, magnetic block 1; 513, magnetic block 2; 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 lead screw; 69, lifting plate; 610, air bag; 611, communicating pipe. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Refer to Figures 1 - 10 , a drilling and layered soil sampling device for soil detection, including a base 11. Above the base 11, there is a column 12. The column 12 is rotatably installed on the base 11 through a rotating seat 15. An elevating lifting frame 13 is provided on the column 12. A motor 1 14 is installed on the lifting frame 13. A motor 2 17 is installed on the base 11, and the output shaft of the motor 2 17 is fixed with a driving gear 18. A driven gear 19 is fixedly sleeved on the rotating seat 15. The driving gear 18 meshes with the driven gear 19; Above the base 11, there are a sampling component and a mounting component. The sampling component includes a sampling core drill 21. The mounting component includes a fixing plate 31 and a rotating cylinder 32. The fixing plate 31 is fixed on the lifting frame 13. The rotating cylinder 32 is rotatably installed on the fixing plate 31. The sampling core drill 21 is assembled in the rotating cylinder 32. The sampling component further includes a fixed cylinder 22, a push plate 23 and a push rod 24. The fixed cylinder 22 is fixed at the top of the sampling core drill 21 (such as Figure 7As shown in the figure, the fixed cylinder 22 is internally connected to the sampling core drill 21. The push plate 23 is slidably arranged inside the sampling core drill 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 by a first spring 25. Two oppositely arranged clamping grooves 26 are formed at the top end of the fixed cylinder 22. The installation 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 first motor 14. The second gear 34 meshes with the first gear 33. Both of the two clamping plates 35 are arranged inside the rotating cylinder 32. Clamping blocks 36 are fixed on the side surfaces of the two clamping plates 35 close to each other. Fixing rods 37 are fixed on the side surfaces of the two clamping plates 35 away from each other. Both of the two fixing rods 37 pass through the rotating cylinder 32 and are slidably connected to the rotating cylinder 32. End caps 38 are fixed at the ends of the two fixing rods 37 away from each other. A second spring 39 is connected between each end cap 38 and the rotating cylinder 32. Inclined surfaces are arranged on both of the two clamping blocks 36, and the two inclined surfaces are oppositely arranged. A positioning assembly is arranged on the rotating cylinder 32 to provide positioning for the two clamping plates 35. A vibration assembly is arranged on the side surface of the column 12. An air supply assembly is arranged 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. Both of the two grooves 42 are formed in 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 a magnetic material. When the drilling layered soil sampling device for soil detection 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 to move the two blocks 36 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 be respectively inserted 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 suction 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 clamping blocks 36 to slide freely, so that the fixed 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 clamped in the two grooves 42. At this time, the positioning ring 41 provides restrictions 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 fixed cylinder 22 to rotate through the two clamping blocks 36. In addition, under the restriction of the positioning ring 41, the sampling drill core 21 can only rotate in the axial direction during the sampling process and cannot be offset 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. 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. 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 all fixed on 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. The rotating assembly is used to drive the rotation of the rotating shaft 51. 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 58 is fixed on the side surface of the slider 55. An inner rod 59 is slidably arranged 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 in contact with the inner surface of the outer cylinder 58. Both the inner rod 59 and the outer cylinder 58 are made of rubber material, which makes the first rack 510 not move away from or close to the slider 55 when not attracted or repelled by magnetic force. The slider 55 and the base 11 are connected by a tension spring 56. A cross bar 57 is fixed on the side surface 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 first magnets 512 and two second magnets 513. The two first magnets 512 are respectively fixed at both ends of the first rack 510. The two second magnets 513 are both fixed on the base 11 through connecting rods 514; After the sampling is completed, the staff controls the lifting frame 13 and the sampling core drill 21 to move up and reset. After the reset is completed, the staff starts the second motor 17. When the second motor 17 operates, it can drive the rotation of the rotating seat 15 through the meshing of the driving gear 18 and the driven gear 19. The column 12 on the rotating seat 15 also rotates accordingly until the column 12 rotates 90 degrees. After the rotation action is completed, the sampling core drill 21 just rotates to directly above one of the sample cans 53, as Figure 4 shown in the state. In this case, the staff can press down the push rod 24 to drive the push plate 23 to move downward. When the push rod 24 moves downward, it can push out the soil inside the sampling core drill 21, so that the soil falls into the sample can 53 directly below it, realizing the automatic collection of the sample soil without manually taking out the soil in the sampling core drill 21, and the operation is convenient; When the rotating seat 15 rotates under the action of the second motor 17, the first eccentric wheel 16 on the rotating seat 15 will also rotate synchronously. During 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. When the slider 55 moves, it can drive the first rack 510 to move through the outer cylinder 58 and the inner rod 59. For the convenience 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 limit position accordingly. In this case, the first magnet 512 at one end of the first rack 510 is exactly opposite to one of the second magnets 513. For this first magnet 512 and this second magnet 513, the opposite magnetic poles of the two are different poles. According to the principle of attraction between opposite poles, the second magnet 513 will generate a magnetic attraction force on the first magnet 512. This causes the first magnet 512 to drive the first rack 510 to move. At this time, the first rack 510 will move in a direction away from the slider 55 and move to a position opposite to the third gear 511. After taking out the soil inside the sampling drill core 21, the second motor 17 drives the rotating seat 15 to reset. When rotating and resetting, the first eccentric wheel 16 resets accordingly. During this process, the first eccentric wheel 16 no longer squeezes the cross bar 57. Without the squeezing action of the first eccentric wheel 16, the slider 55 will also reset under the action of the tension spring 56. This causes the first rack 510 to reset accordingly. For the convenience of understanding, this step is defined as the reverse movement of the first rack 510. When the first rack 510 resets to the initial position, the first magnet 512 at the other end of the first rack 510 is exactly opposite to the other second magnet 513. For this first magnet 512 and this second magnet 513, the opposite magnetic poles of the two are the same poles. According to the principle of repulsion between like poles, the second magnet 513 will generate a magnetic repulsive force on the first magnet 512. This causes the first magnet 512 to drive the first rack 510 to move. At this time, the first rack 510 will move in a direction close to the slider 55, realizing the automatic reset of the first rack 510. According to the above principle, since the first rack 510 is already opposite to 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. This causes several sample cans 53 to rotate synchronously. When the first rack 510 resets in place, the third gear 511 and the rotating shaft 51 just rotate 90°. In this way, the automatic transposition of the sample cans 53 is realized. Based on the above process, the first rack 510 will not mesh with the third gear 511 during the forward movement, while it will drive the third gear 511 to rotate during the reverse movement, causing several sample cans 53 to rotate synchronously.With this design, every time the sampling core 21 discharges soil, there will be a new sample tank 53 below it, eliminating the need for manual adjustment of the position of the sample tank 53; 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 to the connecting frame 61. The second rack 64 meshes with the fourth gear 63. The telescopic rod 66 consists of a cylinder and a rod. The cylinder is fixed to the connecting frame 61. The rod is slidably and sealingly connected in the cylinder. The rod serves as the telescopic part and is connected to the second rack 64; The air supply assembly includes a side plate 67, a reciprocating lead screw 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 lead screw 68 is rotatably installed on the side of the side plate 67 through two bearing seats. The lifting plate 69 is threadedly sleeved on the reciprocating lead screw 68 and is located between the two bearing seats. One end of the airbag 610 is connected to the upper bearing seat. The other end of the airbag 610 is connected to the lifting plate 69. The airbag 610 is connected to the cylinder of the telescopic rod 66 through a connecting pipe 611. The bottom end of the reciprocating lead screw 68 is connected to the end of the output shaft of the second motor 17; In order to ensure that the push plate 23 can smoothly push the soil out of the sampling core 21, the present invention designs a vibration assembly and a gas supply assembly. Specifically, when the rotating seat 15 and the sampling core 21 rotate under the action of the second motor 17, the second motor 17 can also synchronously drive the reciprocating lead screw 68 to rotate. When the reciprocating lead screw 68 rotates, it will drive the lifting plate 69 to move reciprocally in the vertical direction. When the lifting plate 69 moves upward, the lifting plate 69 squeezes the airbag 610. At this time, the gas in the airbag 610 enters the cylinder of 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, so that the second rack 64 drives the fourth gear 63 to rotate. The fourth gear 63 can drive the rotating rod 62 to rotate. The second eccentric wheel 65 on the rotating rod 62 rotates accordingly. During the rotation of the second eccentric wheel 65, it will continuously knock on the sampling core 21. This continuous knocking force will cause the sampling core 21 to vibrate, and the soil inside it will gradually loosen under the vibration, so as to facilitate the subsequent push plate 23 to push out the soil. Similarly, when the lifting plate 69 moves downward, the lifting plate 69 stretches the airbag 610, and the gas in the cylinder of the telescopic rod 66 is drawn out, and the rod body and the second rack 64 are reset, and the rotating rod 62 can also be driven to rotate. It is worth mentioning that before the second motor 17 drives the rotating seat 15 to rotate, the staff can pull up the positioning ring 41 to make the positioning ring 41 adsorbed on the magnetic attraction ring 44. At this time, the two grooves 42 on the positioning ring 41 no longer provide restrictions on the two positioning rods 43. Without the restraint of the positioning ring 41, the two clamping plates 35 can slide freely. When the second eccentric wheel 65 knocks on the sampling core 21, the sampling core 21 and the two clamping plates 35 can vibrate with a larger amplitude, so as to ensure the loosening effect of the vibration on the soil inside the sampling core 21. This design not only ensures the high-speed rotation stability of the sampling core 21 during the sampling process, but also enables the sampling core 21 to make larger-amplitude vibration actions during the process of discharging soil.

[0021] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A soil detection drilling stratified soil sampling device, characterized in that, It includes a base (11), above which a vertical column (12) is provided. The vertical column (12) is rotatably mounted on the base (11) through a rotating seat (15). An elevating frame (13) that can be lifted and lowered is provided on the vertical column (12). A first motor (14) is mounted on the elevating frame (13). A second motor (17) is mounted on the base (11), and a driving gear (18) is fixed to the output shaft of the second motor (17). A driven gear (19) is fixedly sleeved on the rotating seat (15). The driving gear (18) meshes with the driven gear (19). Above the base (11), a sampling assembly and a mounting assembly are provided. The sampling assembly includes a sampling drill core (21). The mounting assembly includes a fixing plate (31) and a rotating cylinder (32). The fixing plate (31) is fixed on the elevating frame (13). The rotating cylinder (32) is rotatably mounted on the fixing plate (31). The sampling drill core (21) is 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 cans (53). The rotating shaft (51) is rotatably mounted on the top surface of the base (11). A plurality of the mounting plates (52) are all fixed on the outer peripheral surface of the rotating shaft (51). A plurality of the sample cans (53) are respectively connected to a plurality of the mounting plates (52). The rotating assembly is used to drive the rotating shaft (51) to rotate.

2. The soil detection drilling and layered soil sampling device 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). The fixed cylinder (22) is fixed to the top end of the sampling drill core (21), and the fixed cylinder (22) is in communication with the inside 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) through a first spring (25). Two oppositely arranged clamping grooves (26) are opened at the top end of the fixed cylinder (22).

3. A soil detection drilling stratified soil sampling device according to claim 1, characterized in that, The installation component 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 first motor (14), and the second gear (34) meshes with the first gear (33). Both of the two clamping plates (35) are arranged inside the rotating cylinder (32). Clamping blocks (36) are fixed on the sides of the two clamping plates (35) close to each other. Fixing rods (37) are fixed on the sides of the two clamping plates (35) away from each other. Both of the two fixing rods (37) pass through the rotating cylinder (32) and are slidably connected to the rotating cylinder (32). End caps (38) are fixed at the ends of the two fixing rods (37) away from each other. A second spring (39) is connected between each end cap (38) and the rotating cylinder (32). Bevels are arranged on both of the two clamping blocks (36), and the two bevels are arranged facing each other.

4. A soil detection drilling stratified soil sampling device according to claim 1, characterized in that, The rotating component 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 (58) is fixed on the side of the slider (55). An inner rod (59) is slidably arranged 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). A tension spring (56) is connected between the slider (55) and the base (11). A cross bar (57) is fixed on 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 facing the cross bar (57).

5. The soil detection drilling and layered soil sampling device according to claim 4, characterized in that, The control structure includes two first magnets (512) and two second magnets (513). The two first magnets (512) are respectively fixed at both ends of the first rack (510). The two second magnets (513) are both fixed on the base (11) through connecting rods (514).

6. The soil detection borehole layered soil sampling device according to claim 4, characterized in that, The outer surface of the inner rod (59) is in contact with the inner surface of the outer cylinder (58). Both the inner rod (59) and the outer cylinder (58) are made of rubber materials.

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

8. A soil detection drilling stratified soil sampling device according to claim 7, characterized in that, The vibration component 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 on the side surface 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) meshes with the fourth gear (63). The telescopic rod (66) is composed of a cylinder body and a rod body. The cylinder body is fixed on the connecting frame (61). The rod body is hermetically and slidably connected in the cylinder body. The rod body serves as the telescopic part and is connected to the second rack (64).

9. The soil sampling device for borehole stratification soil sampling according to claim 8, wherein, The air supply component includes a side plate (67), a reciprocating lead screw (68), a lifting plate (69) and an air bag (610). The side plate (67) is fixed on the top surface of the base (11). The reciprocating lead screw (68) is rotatably installed on the side surface of the side plate (67) through two bearing seats. The lifting plate (69) is threadedly sleeved on the reciprocating lead screw (68), and the lifting plate (69) is located between the two bearing seats. One end of the air bag (610) is connected to the upper bearing seat. The other end of the air bag (610) is connected to the lifting plate (69). The air bag (610) is connected to the cylinder body of the telescopic rod (66) through a connecting pipe (611). The bottom end of the reciprocating lead screw (68) is connected to the end of the output shaft of the second motor (17).

10. A soil detection drilling stratified soil sampling device according to claim 1, characterized in that, A plurality of the sample cans (53) are circumferentially and arrayedly distributed around the rotating shaft (51).

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