A sampling structure and sampling method for hydrogeological and environmental exploration

Abstract

This invention discloses a sampling structure for hydrogeological and environmental geological exploration, relating to the field of hydrogeological and environmental geological exploration technology. It includes a limiting support, with rotating seats connected to both the left and right sides of the upper end of the limiting support. Both rotating seats are located at the front of the upper end of the limiting support. A support frame is rotatably connected to the front of the upper end of the limiting support via the two rotating seats, with the upper ends of the two rotating seats respectively connected to the left and right sides of the lower end of the support frame. A lifting crossbar is internally engaged at the upper end of the support frame. When the drill pipe contacts the ground and drilling begins, it locks, ensuring effective transmission of downward pressure, vibration, and rotation, thus improving drilling efficiency. When the drill pipe is pulled out, it unlocks promptly, moving only upwards without vibration or rotation, ensuring sampling integrity. When the drill pipe is completely pulled out, the connecting shaft and the drive gear shaft lock again, moving only upwards and vibrating without rotation, further improving sampling efficiency. This allows the sampling mechanism to automatically switch functions according to different drilling stages without human intervention.

Description

Technical Field

[0001] This invention belongs to the technical field of hydrogeological and environmental geological exploration, specifically relating to a sampling structure and sampling method for hydrogeological and environmental geological exploration. Background Technology

[0002] In the field of hydrogeological and environmental geological exploration, traditional sampling techniques and equipment face many challenges and limitations.

[0003] In general, existing geological exploration and sampling equipment is not precise or flexible enough in adjusting the drilling angle, making it difficult to accurately set the drilling angle according to complex and ever-changing geological conditions and exploration needs. This may result in inaccurate and incomplete geological samples, affecting subsequent geological analysis and engineering design.

[0004] During the drilling process, many equipment use a relatively simple drilling method, often relying solely on simple downward or rotating motions to drill into the formation, making it difficult for the drill pipe to penetrate the formation and resulting in low drilling efficiency.

[0005] Furthermore, when samples need to be retrieved after drilling is completed, existing equipment often struggles to remove the samples from the drill pipe conveniently and efficiently, increasing the complexity and time cost of the operation.

[0006] In summary, in order to efficiently carry out hydrogeological and environmental geological exploration and sampling work and obtain high-quality geological samples, there is an urgent need for an innovative sampling structure and sampling method to overcome the various shortcomings of existing technologies. Summary of the Invention

[0007] The purpose of this invention is to provide a sampling structure and method for hydrogeological exploration, so as to solve the problems of traditional sampling equipment with single function, inability to achieve composite actions, and low drilling efficiency mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a sampling structure for hydrogeological exploration, comprising a limiting support, wherein rotating seats are connected to the left and right sides of the upper end of the limiting support, and both rotating seats are located at the front side of the upper end of the limiting support. A support frame is rotatably connected to the front side of the upper end of the limiting support through the two rotating seats, and the upper ends of the two rotating seats are respectively connected to the left and right sides of the lower end of the support frame. A lifting crossbar is clamped inside the upper end of the support frame, and handles are provided on the left and right sides of the rear end of the lifting crossbar. A sampling motor is fixedly connected to the center of the upper end of the lifting crossbar, and the sampling motor is electrically connected to an external power source through a power cord. A vibrator is connected to the lower end of the lifting crossbar, and a connecting seat is connected to the lower end of the vibrator. A downward-opening drilling pipe is sleeved on the lower end of the connecting seat and fixedly connected by bolts, and cutting teeth are provided at the lower end of the drilling pipe.

[0009] Preferably, the upper left and right sides of the limiting support are provided with angle adjustment grooves, and the two angle adjustment grooves are respectively located on the rear side of the two rotating seats. An angle adjustment slide block is slidably connected inside the two angle adjustment grooves. Connecting rotating heads are fixedly connected to the front side of the upper end of the two angle adjustment slide blocks and the two lower corners of the rear end of the support frame. An angle adjustment side rod is rotatably connected between the two connecting rotating heads on the left and between the two connecting rotating heads on the right. An angle adjustment scale is provided on the upper side of the outer side of the two rotating seats. An angle adjustment pointer is provided on the lower side of the left and right ends of the support frame, and the two angle adjustment pointers are respectively located on the upper side of the two angle adjustment scales.

[0010] Preferably, the inner walls of both the left and right ends of the support frame are provided with lifting grooves, and each of the two lifting grooves is provided with a lifting screw. The upper and lower ends of the two lifting screws are fixedly connected with limit blocks, and the two upper limit blocks are located within the boundary of the circle where the upper end of the lifting screw is located. The upper left and right sides of the support frame are fixedly connected with limit baffles by bolts. The two upper limit blocks are respectively engaged in the two limit baffles, and the two lower limit blocks are respectively engaged in the inner walls of the lower end of the two lifting grooves. The upper left side and lower right side of the lifting crossbar are provided with belt grooves, and the two belt grooves are located on the lower left and right sides of the sampling motor, respectively.

[0011] Preferably, each of the two belt grooves has an internally threaded shaft rotatably connected to the end furthest from the sampling motor, and the two internally threaded shafts are respectively threaded to the outside of the two lifting screws. A motor shaft is rotatably connected to the center of the lower end of the sampling motor. Linkage grooves are provided on the inner side of the upper outer wall of the left internally threaded shaft, the inner side of the lower outer wall of the right internally threaded shaft, and the inner sides of the upper and lower outer walls of the motor shaft. Limiting rings are provided at the upper and lower ends of the two internally threaded shafts, and are engaged with the two belt grooves through the limiting rings. Linkage belts are connected between the motor shaft and the two internally threaded shafts, and the two linkage belts are respectively engaged with the four linkage grooves and mesh with each other.

[0012] Preferably, a connecting plate is fixedly connected to the lower side of the center of both ends of the lifting crossbar. Connecting slide rods are passed through the left and right ends of both connecting plates, and four connecting slide rods are fixedly connected to the four corners of the upper end of the vibrator. Spring limiting rings are fixedly connected to the upper and lower sides of the four connecting slide rods. Shock-absorbing springs are provided between the eight spring limiting rings and the two connecting plates, and the eight shock-absorbing springs are elastically connected to the two connecting plates.

[0013] Preferably, a square connecting clip is fixedly connected to the center of the lower end of the motor shaft. A drive gear shaft is sleeved on the lower end of the connecting clip, and the lower end of the drive gear shaft passes through the inside of the vibrator and extends to the outside of the lower end of the vibrator. A conversion groove is opened inside the upper end of the drive gear shaft, and the connecting clip is inserted into the conversion groove. The upper side of the conversion groove is cylindrical, and the lower side of the conversion groove is square.

[0014] Preferably, a driving helical gear is fixedly connected to the outside of the driving gear shaft. A gear chamber is opened at the center of the inside of the vibrator, and the driving helical gear is located at the center of the gear chamber. Two vibration chambers are arranged on both the left and right sides of the gear chamber, and the four vibration chambers are respectively opened at the left and right ends of the vibrator. A driven helical gear is meshed at both ends of the driving helical gear. An eccentric wheel is engaged in the inside of each of the four vibration chambers, and the four eccentric wheels are rotatably connected to the inside of the four vibration chambers. The rear ends of the two inner eccentric wheels are provided with rear connecting shafts, and the front ends of the two outer eccentric wheels are provided with front connecting shafts.

[0015] Preferably, both ends of the rear connecting shaft and the front connecting shaft are fixedly connected with linkage gears, and the four linkage gears mesh with four eccentric wheels respectively. The rear connecting shaft is connected to the two inner eccentric wheels through two linkage gears, and the front connecting shaft is connected to the two outer eccentric wheels through two linkage gears. The center of the two driven helical gears away from the driving helical gear is fixedly connected with a driven gear shaft. The driven helical gear on the left is fixedly connected to the inner eccentric wheel on the left end through the driven gear shaft, and the driven helical gear on the right is fixedly connected to the outer eccentric wheel on the right end through the driven gear shaft. The driven gear shaft on the right end passes through the interior of the inner eccentric wheel on the right end and is rotatably connected to the inner eccentric wheel on the right end.

[0016] Preferably, a telescopic shaft is fixedly connected to the lower end of the drive gear shaft, and the telescopic shaft is snapped onto the outside of the lower end of the vibrator and passes through the inside of the upper end of the connecting seat. A locking chamber is provided inside the connecting seat. The upper side of the locking chamber is cylindrical, and the lower side is square. An upper pre-rotation ring is rotatably connected inside the upper end of the locking chamber, and the upper pre-rotation ring is fixedly connected to the lower end of the telescopic shaft. A cylindrical upper locking pin is fixedly connected to the lower end of the upper pre-rotation ring. The upper outer side of the upper pre-rotation ring is rolled internally connected to... There are multiple lifting balls, and the upper ends of the multiple lifting balls are attached to the upper inner wall of the locking chamber. A cylindrical lower locking post is fixedly connected to the center of the lower inner wall of the locking chamber. A lower pre-rotation ring is engaged inside the lower side of the locking chamber and is slidably connected to the lower pre-rotation ring. The lower pre-rotation ring is sleeved on the outside of the upper end of the lower locking post. A pre-compression spring is provided at the lower end of the lower pre-rotation ring and is located outside the lower locking post. A locking tooth groove is provided at the lower end of the upper locking post, and a locking tooth is provided at the upper end of the lower locking post.

[0017] A sampling method for hydrogeological exploration, the steps of which are as follows:

[0018] Step 1: Clean up any debris on the upper part of the sampling point and place the sampling structure stably on top of the sampling point;

[0019] Step 2: Adjust the sampling angle by sliding the angle adjustment slider, and determine the precise angle to be adjusted by the indication of the angle adjustment scale by the angle adjustment pointer;

[0020] Step 3: Install the drill pipe at the lower end of the connecting seat with bolts, then hold the two handles at the rear end of the lifting crossbar and control the sampling motor to rotate forward to drive the drill pipe downward into the formation mechanism, and press the connecting card shaft into the square interior of the conversion slide groove and lock it with the active gear shaft. Press the upper locking column (44) down and lock it with the lower locking column, so that the vibrator vibrates and the drill pipe rotates, so that the drill pipe vibrates and rotates while being pressed into the formation structure.

[0021] Step 4: After the drill pipe has been drilled to the specified depth, control the sampling motor to reverse and drive the drill pipe and the sample inside the drill pipe to be pulled out from the formation mechanism. At the same time, the connecting card slides upward and out of the square inside the conversion groove to release the lock from the drive gear shaft. The upper locking column slides upward and separates from the lower locking column, so that the drill pipe stops vibrating and rotating during the pulling process.

[0022] Step 5: After the drill pipe is fully pulled out, continue to control the sampling motor to reverse so that the drill pipe continues to rise. At the same time, the connecting shaft slides back into the square interior of the conversion groove under the action of multiple shock-absorbing springs on the upper side and locks with the drive gear shaft, so that the sample inside the drill pipe can be shaken out, thereby obtaining the sample.

[0023] Step 6: Collect and number the extracted samples, and finally send them for testing.

[0024] Compared with the prior art, the present invention provides a sampling structure and sampling method for hydrogeological exploration, which has the following beneficial effects:

[0025] 1. This invention, through the cooperation of a rotating seat, an angle-adjusting slide, an angle-adjusting side rod, and an angle-adjusting scale and pointer, can adjust the angle between the support frame and the limiting support with extreme precision, ensuring that the drilling angle meets the exploration requirements and improving the accuracy and reliability of the exploration data.

[0026] 2. In the drilling stage, the present invention drives the lifting crossbar to move down through the sampling motor, and drives the vibrator to vibrate through the insertion of the connecting shaft into the square interior of the conversion slide. The upper and lower locking columns lock the drilling pipe to rotate, so that the drilling pipe can effectively destroy the formation structure through the combined action, and insert into the formation more easily, which greatly improves drilling efficiency and reduces drilling time and labor costs.

[0027] 3. In the drilling pipe lifting stage, the present invention drives the lifting crossbar to move upward by a sampling motor, and stops the vibration of the vibrator by sliding the connecting shaft out of the lower square inside the conversion groove. The rotation of the drilling pipe is stopped by the separation between the upper and lower locking columns, so as to prevent the sample from falling due to vibration and rotation during the drilling pipe lifting process, and ensure the sampling success rate and sample integrity.

[0028] 4. After the drilling pipe is completely pulled out of the formation, the connecting shaft is re-inserted into the square interior of the conversion slide by multiple shock-absorbing springs on the upper side, which drives the vibrator to vibrate and shake the sample out from the lower end of the drilling pipe. This facilitates sample removal, significantly improves sampling efficiency, and reduces the complexity of operation.

[0029] 5. The combination design of the active helical gear, driven helical gear and eccentric wheel inside the vibratory machine of this invention can produce a stable and efficient vibration effect, improve the drilling speed of the drill pipe, and at the same time, through the shock-absorbing spring and connecting slide rod and other structures, effectively absorb and reduce the impact of vibration on the lifting crossbar, ensuring the stability and durability of the entire structure.

[0030] 6. This invention locks the drill pipe when it contacts the ground to begin drilling, ensuring the effective transmission of downward pressure, vibration, and rotation, thus improving drilling efficiency. When the drill pipe is pulled out, it unlocks in time, moving only upwards without vibration or rotation, ensuring sampling integrity. When the drill pipe is completely pulled out, the connecting clip and the drive gear shaft lock again, moving only upwards and vibrating without rotation, further improving sampling efficiency. This allows the sampling mechanism to automatically switch functions according to different stages of drilling without human intervention. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of the sampling structure of the present invention.

[0032] Figure 2 This is a schematic diagram of the angle-adjusting side rod connection structure of the present invention.

[0033] Figure 3 For the present invention Figure 2 A magnified schematic diagram is shown in section A.

[0034] Figure 4 This is a schematic diagram of the lifting crossbar connection structure of the present invention.

[0035] Figure 5 This is a schematic diagram of the lifting screw connection structure of the present invention.

[0036] Figure 6 This is a schematic diagram of the internal thread shaft connection structure of the present invention.

[0037] Figure 7This is a schematic diagram of the connection structure of the vibration machine according to the present invention.

[0038] Figure 8 This is a three-dimensional cross-sectional structural diagram of the vibration machine of the present invention.

[0039] Figure 9 This is a schematic diagram of the active helical gear connection structure of the present invention.

[0040] Figure 10 This is a schematic diagram of the eccentric wheel connection structure of the present invention.

[0041] Figure 11 This is a schematic diagram of the connection structure of the connector of the present invention.

[0042] Figure 12 For the present invention Figure 11 A magnified schematic diagram is shown in section B.

[0043] In the diagram: 1. Limiting support; 2. Rotary seat; 3. Support frame; 4. Lifting crossbar; 5. Sampling motor; 6. Vibrator; 7. Connecting seat; 8. Drill pipe; 9. Angle adjusting groove; 10. Angle adjusting slide; 11. Connecting rotor; 12. Angle adjusting side rod; 13. Angle adjusting scale; 14. Angle adjusting pointer; 15. Lifting groove; 16. Lifting screw; 17. Limiting block; 18. Limiting baffle; 19. Belt groove; 20. Internal threaded shaft; 21. Motor shaft; 22. Linkage tooth groove; 23. Limiting ring; 24. Linkage belt; 25. Connecting plate; 26. Connecting slide bar; 27. Spring limiting ring; 28. Shock-absorbing spring; 29. ​​Connecting clip shaft; 30. Drive gear shaft; 31. Conversion slide; 32. Drive helical gear; 33. Gear chamber; 34. Vibration chamber; 35. Driven helical gear; 36. Eccentric wheel; 37. Rear connecting shaft; 38. Front connecting shaft; 39. Linkage gear; 40. Driven gear shaft; 41. Telescopic shaft; 42. Locking chamber; 43. Upper pre-rotation contact ring; 44. Upper locking pin; 45. Lifting ball; 46. Lower locking pin; 47. Lower pre-rotation contact ring; 48. Preload spring; 49. Locking tooth groove; 50. Locking teeth. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] This invention provides, for example Figures 1-12The sampling structure and method for hydrogeological exploration shown includes a limiting support 1. Rotary seats 2 are connected to the left and right sides of the upper end of the limiting support 1, and both rotating seats 2 are located at the front of the upper end of the limiting support 1. A support frame 3 is rotatably connected to the front of the upper end of the limiting support 1 via the two rotating seats 2. The upper ends of the two rotating seats 2 are respectively connected to the left and right sides of the lower end of the support frame 3. A lifting crossbar 4 is internally engaged at the upper end of the support frame 3, and handles are provided on the left and right sides of the rear end of the lifting crossbar 4. A sampling motor 5 is fixedly connected to the center of the upper end of the lifting crossbar 4, and the sampling motor 5 is electrically connected to an external power source via a power cord. The sampling motor 5 can achieve forward and reverse rotation, and any existing known motor can be used for the sampling motor 5. The forward and reverse rotation of the motor is a known and publicly disclosed technology. This will not be elaborated upon in this technical document. The lower end of the lifting crossbar 4 is connected to a vibrator 6, and the lower end of the vibrator 6 is connected to a connecting seat 7. A downward-facing drill pipe 8 is fitted onto the lower end of the connecting seat 7 and fixed with bolts. The lower end of the drill pipe 8 is equipped with cutting teeth. During hydrogeological exploration and sampling, the sampling mechanism drills to a specified depth at the sampling point to obtain the stratigraphic structure, which is then sent to the laboratory for testing to understand its properties and provide basic geological data for engineering construction. After clearing debris from the upper layer of the sampling point, the sampling structure is stably placed on top of the sampling point using the limiting support 1. The drill pipe 8 is fitted onto the lower end of the connecting seat 7 and fixed with bolts. Then, the drilling is adjusted by rotating the support frame 3 using the rotating seat 2. After adjusting the drilling angle, hold the two handles at the rear end of the lifting crossbar 4 and control the sampling motor 5 to rotate forward. When the sampling motor 5 rotates forward, it drives the lifting crossbar 4 to move downward, squeezing the vibrator 6, connecting seat 7, and drill pipe 8 together to move downward, allowing the drill pipe 8 to smoothly insert into the formation structure. Simultaneously, the sampling motor 5 drives the vibrator 6 to vibrate, causing the vibrator 6 to strike the drill pipe 8 and rotate the connecting seat 7 and drill pipe 8. This allows the drill pipe 8 to cut the formation structure through its lower cutting teeth. This combination of downward pressure, vibration, and rotation of the drill pipe 8 facilitates easier insertion into the formation structure, improving drilling efficiency. After drilling to the designated depth, the sampling motor 5 is reversed. When the sampling motor 5 reverses, it drives the lifting crossbar 4 to move upward, pulling the vibrator 6, connecting seat 7, and drill pipe 8 upward together. This pulls the drill pipe 8 and the sample inside the drill pipe 8 out of the formation structure. While pulling upward, the vibrator 6 stops vibrating and the drill pipe 8 stops rotating to prevent the sample from being shaken out and to ensure that the sample is completely brought out of the formation structure. When the drill pipe 8 is completely pulled out of the formation structure, the sampling motor 5 is controlled to continue to reverse. As the drill pipe 8 rises, the vibrator 6 starts to vibrate and shakes the sample out of the drill pipe 8, making it easier to remove the sample from the drill pipe 8 and improving sampling efficiency. The sample is then sent for testing.

[0046] Preferably, the upper left and right sides of the limiting support 1 are provided with angle adjustment grooves 9, and the two angle adjustment grooves 9 are respectively located on the rear side of the two rotating seats 2. Angle adjustment slides 10 are slidably connected inside the two angle adjustment grooves 9. Connecting rotating heads 11 are fixedly connected to the upper front side of the two angle adjustment slides 10 and the two lower corners of the rear end of the support frame 3. Angle adjustment side rods 12 are rotatably connected between the two connecting rotating heads 11 on the left and between the two connecting rotating heads 11 on the right. Angle adjustment scales 13 are provided on the upper outer side of the two rotating seats 2. Angle adjustment pointers 14 are provided on the lower side of the left and right ends of the support frame 3, and the two angle adjustment pointers 14 are respectively located on the upper side of the two angle adjustment scales 13. During the process of adjusting the drilling angle, since the support frame 3 is rotatably connected to the upper front side of the limiting support 1 through the rotating seats 2, and The lower rear end of the support frame 3 is connected to the upper rear end of the limiting support 1 via an angle adjustment groove 9, an angle adjustment slide 10, and a connecting head 11. A movable angle adjustment rod 12 is connected between these two points. Therefore, when the angle adjustment slide 10 slides inside the angle adjustment groove 9, the angle adjustment slide 10 can pull or push the support frame 3 forward or backward via the angle adjustment rod 12, thereby adjusting the angle between the support frame 3 and the limiting support 1. The angle between the limiting support 1 and the support frame 3 can be precisely adjusted by the angle adjustment pointer 14 indicating the angle adjustment scale 13, ensuring accurate drilling angle. After adjusting the drilling angle, the lower end of the bolt inside the angle adjustment slide 10 is rotated to press against the lower inner wall of the angle adjustment groove 9, thereby fixing the position of the angle adjustment slide 10 and preventing the drilling angle from changing during drilling.

[0047] Preferably, the inner walls of both ends of the support frame 3 are provided with lifting grooves 15, and each lifting groove 15 is provided with a lifting screw 16. Limiting blocks 17 are fixedly connected to the upper and lower ends of the two lifting screws 16, with the two upper limiting blocks 17 located within the boundary of the circle containing the upper end of the lifting screw 16. Limiting baffles 18 are fixedly connected to the upper left and right sides of the support frame 3 by bolts. The two upper limiting blocks 17 are respectively engaged inside the two limiting baffles 18, and the two lower limiting blocks 17 are respectively engaged inside the lower inner walls of the two lifting grooves 15. This arrangement achieves lifting... The locking of the pressure screw 16 prevents it from moving up and down or rotating left and right, and also facilitates disassembly and maintenance. The upper left side and lower right side of the lifting crossbar 4 are each provided with a belt groove 19, located on the left and right sides of the lower end of the sampling motor 5, respectively. The ends of the two belt grooves 19 furthest from the sampling motor 5 are each rotatably connected to an internally threaded shaft 20, which is threaded onto the outside of the two pressure screws 16. A motor shaft 21 is rotatably connected to the center of the lower end of the sampling motor 5. The upper outer wall of the left internally threaded shaft 20 and the right internally threaded shaft 20... Linkage grooves 22 are provided on the inner side outer wall of the internal threaded shaft 20 and on the inner sides of the upper and lower outer walls of the motor shaft 21. Limiting rings 23 are provided at both ends of the two internal threaded shafts 20, and are engaged with the two belt grooves 19 via the limiting rings 23. Linkage belts 24 connect the motor shaft 21 to the two internal threaded shafts 20. The linkage belts 24 are toothed belts with evenly spaced teeth on their inner surface. The two linkage belts 24 are respectively engaged with the four linkage grooves 22 and mesh with each other. During the forward rotation of the sampling motor 5, the sampling motor 5 can... The motor shaft 21 and the linkage belts 24 on both sides drive the two internal thread shafts 20 to rotate outside the two belt grooves 19. The internal thread shafts 20 can be restricted in position with the lifting crossbar 4 by the limiting rings 23 at the upper and lower ends, and are threadedly connected to the lifting screw 16. Therefore, when the sampling motor 5 rotates forward, the sampling motor 5 can drive the internal thread shafts 20 to rotate forward through the linkage belt 24, and move downward outside the lifting screw 16 through the thread, thereby driving the lifting crossbar 4 to move downward, so that the lifting crossbar 4 can squeeze the drilling pipe 8 downward through the vibrator 6 and the connecting seat 7, and press the drilling pipe 8 into the formation mechanism.

[0048] Preferably, connecting plates 25 are fixedly connected to the lower side of the center of both ends of the lifting crossbar 4. Connecting slide rods 26 are passed through the interior of both ends of the two connecting plates 25, and the four connecting slide rods 26 are fixedly connected to the four corners of the upper end of the vibrator 6. Spring limiting rings 27 are fixedly connected to the upper and lower sides of the four connecting slide rods 26. Shock-absorbing springs 28 are provided between the eight spring limiting rings 27 and the two connecting plates 25, and are elastically connected to the two connecting plates 25 through the eight shock-absorbing springs 28. During the downward movement of the lifting crossbar 4, the lifting crossbar 4 can press down the multiple shock-absorbing springs 28 on the lower side through the connecting plates 25, and transmit the downward pressure to the four connecting slide rods 26 through the multiple shock-absorbing springs 28 and the multiple spring limiting rings 27 on the lower side. Then, the downward pressure is transmitted to the vibrator 6 through the four connecting slide rods 26, and finally, the downward pressure is transmitted to the drill pipe 8 through the vibrator 6 and the connecting seat 7, thereby pressing the drill pipe 8 into the formation mechanism.

[0049] Preferably, a square connecting shaft 29 is fixedly connected to the center of the lower end of the motor shaft 21. A drive gear shaft 30 is sleeved on the outer side of the lower end of the connecting shaft 29, and the lower end of the drive gear shaft 30 passes through the inside of the vibrator 6 and extends to the outer side of the lower end of the vibrator 6. A conversion groove 31 is opened inside the upper end of the drive gear shaft 30, and the connecting shaft 29 is inserted into the conversion groove 31. The upper side of the conversion groove 31 is cylindrical, and the lower side of the conversion groove 31 is square. A drive helical gear 32 is fixedly connected to the outside of the drive gear shaft 30. A gear chamber 33 is opened at the center of the inside of the vibrator 6, and the drive helical gear 32 is located at the center of the gear chamber 33. Two vibration chambers 34 are arranged on both the left and right sides of the gear chamber 33, and the four vibration chambers 34 are respectively opened Inside the vibrator 6, at both ends of the driving helical gear 32, driven helical gears 35 are meshed with each other. Eccentric wheels 36 are engaged inside each of the four vibration chambers 34, and each of the four eccentric wheels 36 is rotatably connected to the interior of one of the four vibration chambers 34. The rear ends of the two inner eccentric wheels 36 are provided with rear connecting shafts 37, and the front ends of the two outer eccentric wheels 36 are provided with front connecting shafts 38. Both ends of the rear connecting shafts 37 and the front connecting shafts 38 are fixedly connected with linkage gears 39, and the four linkage gears 39 mesh with the four eccentric wheels 36 respectively. The rear connecting shaft 37 is connected to the two inner eccentric wheels 36 via two linkage gears 39, and the front connecting shaft 38 is connected to the two outer eccentric wheels 36 via two linkage gears 39. The two driven helical gears 35... Each gear 35 has a driven gear shaft 40 fixedly connected to the center of the end away from the driving helical gear 32. The driven helical gear 35 on the left is fixedly connected to the eccentric wheel 36 on the inner side of the left end through the driven gear shaft 40, and the driven helical gear 35 on the right is fixedly connected to the eccentric wheel 36 on the outer side of the right end through the driven gear shaft 40. The driven gear shaft 40 on the right passes through the eccentric wheel 36 on the inner side of the right end and is rotatably connected to the eccentric wheel 36 on the inner side of the right end. During the process of the lifting crossbar 4 pressing down on the vibrator 6, the square connecting shaft 29 is inserted into the conversion slide 31. The upper side of the conversion slide 31 is cylindrical and the lower side is square. The connecting shaft 29 is initially inserted into the square part of the lower side of the conversion slide 31. Therefore, the connecting shaft 29 can pass through... The conversion slide 31 is interlocked with the drive gear shaft 30, so that the sampling motor 5 can drive the drive gear shaft 30 to rotate through the connecting shaft 29, and drive the drive helical gear 32 to rotate. The drive helical gear 32 drives the driven helical gears 35 on both sides to rotate through meshing. Since the two driven helical gears 35 are fixedly connected to the eccentric wheel 36 on the left inner side and the eccentric wheel 36 on the right outer side through the driven gear shaft 40 respectively, and the two eccentric wheels 36 on the inner side are connected to the two linkage gears 39 through the rear connecting shaft 37, and the two eccentric wheels 36 on the outer side are connected to the two linkage gears 39 through the front connecting shaft 38, the two eccentric wheels 36 on the inner side and the two eccentric wheels 36 on the outer side can rotate in opposite directions inside the vibrator 6 through the four vibration chambers 34.

[0050] Preferred, such as Figure 8 As shown, the vibrator 6 has shaft holes and gear grooves respectively provided inside the rear connecting shaft 37, front connecting shaft 38 and linkage gear 39, so that the rear connecting shaft 37 and front connecting shaft 38 can rotate smoothly inside the vibrator 6 without deviation. In addition, bearings can be optionally provided inside the shaft holes, which can reduce the friction between the rotating rear connecting shaft 37, front connecting shaft 38 and shaft holes.

[0051] Preferably, since eccentric blocks are fixedly connected to the lower outer ends of the four eccentric wheels 36, when the eccentric blocks of the four eccentric wheels 36 rotate to the uppermost position simultaneously, the centrifugal force generated by the eccentric blocks of the four eccentric wheels 36 will drive the vibrator 6 to vibrate upwards. When the eccentric blocks of the four eccentric wheels 36 rotate to the lowermost position simultaneously, the centrifugal force generated by the eccentric blocks of the four eccentric wheels 36 will drive the vibrator 6 to vibrate downwards. Furthermore, when the eccentric blocks of the two inner eccentric wheels 36 and the two outer eccentric wheels 36 have not rotated to the uppermost and lowermost positions respectively, the centrifugal force generated by the two inner eccentric wheels 36 and the two outer eccentric wheels 36 will vibrate downwards. Since the rotation directions of 36 are opposite, the centrifugal forces generated by the eccentric blocks of the two inner eccentric wheels 36 and the eccentric blocks of the two outer eccentric wheels 36 will cancel each other out, so that the vibrator 6 can generate vibration in the vertical direction, thereby striking the connecting seat 7 and the drill pipe 8, improving the efficiency of the drill pipe 8 in inserting into the formation and improving drilling efficiency. In addition, the vibrator 6 can slide on the two connecting plates 25 through the four connecting slide rods 26, and the elastic absorption of multiple shock-absorbing springs 28 on the upper and lower sides reduces the impact of vibration on the lifting crossbar 4, reducing the vibration of the lifting crossbar 4 and ensuring the stability of the sampling mechanism.

[0052] Preferably, a telescopic shaft 41 is fixedly connected to the lower end of the drive gear shaft 30, and the telescopic shaft 41 is snapped onto the lower exterior of the vibrator 6 and passes through the upper interior of the connecting seat 7. A locking chamber 42 is provided inside the connecting seat 7. The upper side of the locking chamber 42 is cylindrical, and the lower side is square. An upper pre-rotation bearing ring 43 is rotatably connected to the upper interior of the locking chamber 42, and the upper pre-rotation bearing ring 43 is fixedly connected to the lower end of the telescopic shaft 41. A cylindrical upper locking pin 44 is fixedly connected to the lower end of the upper pre-rotation bearing ring 43. Multiple lifting balls 45 are rolledly connected to the inner outer side of the upper end of the upper pre-rotation bearing ring 43, and the upper ends of the multiple lifting balls 45 are attached to... A cylindrical lower locking pin 46 is fixedly connected to the center of the lower inner wall of the locking chamber 42, which is attached to the upper inner wall of the locking chamber 42. A lower pre-rotation ring 47 is engaged with the lower inner wall of the locking chamber 42 and is slidably connected to it. The lower pre-rotation ring 47 is sleeved on the outer side of the upper end of the lower locking pin 46. A pre-compression spring 48 is provided at the lower end of the lower pre-rotation ring 47 and is located outside the lower locking pin 46. A locking groove 49 is provided at the lower end of the upper locking pin 44, and a locking tooth 50 is provided at the upper end of the lower locking pin 46. When the upper locking pin 44 contacts the lower locking pin 46, its locking groove 49 can engage with the locking tooth 50. During the drilling process of the drill pipe 8 into the bottom layer mechanism, due to the limiting ring on the outside of the drive gear shaft 30, which is located at the upper end of the vibrator 6, the drive gear shaft 30 can limit its position relative to the vibrator 6 through the limiting ring and the telescopic shaft 41. The lifting crossbar 4 presses down on the vibrator 6 through the connecting plate 25 and multiple damping springs 28 on the lower side. The vibrator 6 drives the connecting seat 7 and the drill pipe 8 to move downward through the drive gear shaft 30 and the telescopic shaft 41. When the drill pipe 8 contacts the ground, the drill pipe 8 stops moving downward. The telescopic shaft 41 slides into the connecting seat 7 under the pressure of the vibrator 6, and drives the upper pre-rotating bearing ring 43 and the upper... The locking pin 44 slides downward inside the locking chamber 42. At this time, the upper locking pin 44 is inserted into the upper end of the lower pre-rotation ring 47, so that the outer side of the lower end of the upper pre-rotation ring 43 first contacts and adheres to the inner side of the upper end of the lower pre-rotation ring 47. Then the upper locking pin 44 contacts and adheres to the lower locking pin 46. The locking teeth 49 and locking teeth 50 on the upper and lower sides engage with each other, thereby locking the telescopic shaft 41 and the connecting seat 7. This allows the telescopic shaft 41 to drive the connecting seat 7 to rotate through the upper locking pin 44 and the lower locking pin 46, and drive the drill pipe 8 to rotate through the connecting seat 7, thereby simultaneously achieving the downward pressure, vibration and rotation of the drill pipe 8.

[0053] Preferably, during the process of the upper pre-rotating ring 43 and the lower pre-rotating ring 47 being pressed together, the lower pre-rotating ring 47 can gradually increase the friction between itself and the upper pre-rotating ring 43 through the pre-compression spring 48. This allows the upper pre-rotating ring 43 to drive the lower pre-rotating ring 47 and the connecting seat 7 to pre-rotate due to the increased friction. This reduces the speed difference between the upper locking pin 44 and the lower locking pin 46, allowing the upper locking pin 44 to fit more smoothly with the lower locking pin 46. The locking groove 49 and the locking teeth 50 can also engage more smoothly. This not only allows for a smoother connection between the telescopic shaft 41 and the connecting seat 7, but also reduces wear between the locking groove 49 and the locking teeth 50.

[0054] Preferably, when the sampling motor 5 is reversed, the sampling motor 5 drives the internal thread shaft 20 to reverse. The internal thread shaft 20 moves upward outside the lifting screw 16 through the thread, and drives the lifting crossbar 4 to move upward. The lifting crossbar 4 lifts the four connecting slide rods 26 upward through the connecting plate 25, the multiple shock-absorbing springs 28 on the upper side, and the multiple spring limit rings 27 on the upper side. The four connecting slide rods 26 then lift the vibrator 6 upward. The vibrator 6 then lifts the connecting seat 7 and the drill pipe 8 through the telescopic shaft 41. At this time, there is a large friction between the drill pipe 8 and the formation. Under the lifting of the lifting crossbar 4, the connecting clamp 29 slides upward inside the conversion groove 31 and slides into the cylindrical interior on the upper side of the conversion groove 31. Since the connecting clamp 29 can rotate inside the cylindrical interior of the conversion groove 31, therefore The locking between the connecting shaft 29 and the conversion slide 31 is released, causing the drive gear shaft 30 to stop rotating and no longer drive the four eccentric wheels 36 inside the vibrator 6 to rotate, thus stopping the vibrator 6 from vibrating. At the same time, the telescopic shaft 41, under the lifting of the vibrator 6, drives the upper pre-rotation ring 43 and the upper locking pin 44 to slide upward inside the locking chamber 42, causing the upper pre-rotation ring 43 to separate from the lower pre-rotation ring 47 and the upper locking pin 44 to separate from the lower locking pin 46. This releases the locking between the telescopic shaft 41 and the connecting seat 7. The multiple lifting balls 45 inside the upper end of the upper pre-rotation ring 43 rotate inside the locking chamber 42, simultaneously lifting the connecting seat 7, preventing the drill pipe 8 from vibrating out and rotating during the lifting process, and preventing the sample from falling out of the drill pipe 8 before it is pulled out from inside the formation structure.

[0055] Preferably, when the drill pipe 8 is completely pulled out from inside the formation structure, since the drill pipe 8 is no longer bound by the formation structure, the weight of the drill pipe 8 and the extracted geological sample cannot overcome the elastic deformation force generated when the shock-absorbing spring 28 is pulled upward. Therefore, the vibrator 6, the connecting seat 7, and the drill pipe 8 move upward under the action of multiple shock-absorbing springs 28 on the upper side. At the same time, the vibrator 6 drives the drive gear shaft 30 to move upward. Since the lower end of the connecting clip shaft 29 is tapered, and the cylindrical inner wall on the upper side and the square inner wall on the lower side of the conversion slide 31 are connected... The connection is smooth, so the connecting shaft 29 can slide smoothly into the square interior of the conversion groove 31 during the upward movement of the drive gear shaft 30. The connecting shaft 29 and the conversion groove 31 are locked again, so that the sampling motor 5 on the lifting crossbar 4 can drive the drive gear shaft 30 to rotate again through the connecting shaft 29, so that the vibrator 6 can vibrate again, thereby shaking the sample out from the lower end of the drill pipe 8, making it easier to take out the sample and improving the sampling efficiency. When the lifting crossbar 4 moves to the uppermost side, the sampling motor 5 is turned off and the geological sample is taken out.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sampling structure for hydrogeological exploration, characterized in that, Includes a limiting support (1) and a drive gear shaft (30). The upper left and right sides of the limiting support (1) are connected to rotating seats (2), and both rotating seats (2) are located on the front side of the upper end of the limiting support (1). A support frame (3) is rotatably connected to the front side of the upper end of the limiting support (1) via the two rotating seats (2), and the upper ends of the two rotating seats (2) are respectively connected to the left and right sides of the lower end of the support frame (3). A lifting crossbar (4) is clamped inside the upper end of the support frame (3), and the lifting crossbar... Handles are provided on both the left and right sides of the rear end of the crossbar (4). A sampling motor (5) is fixedly connected to the center of the upper end of the lifting crossbar (4), and the sampling motor (5) is electrically connected to an external power source through a power cord. A vibrator (6) is connected to the lower end of the lifting crossbar (4), and a connecting seat (7) is connected to the lower end of the vibrator (6). A drilling pipe (8) with an opening facing downward is sleeved on the lower end of the connecting seat (7) and fixedly connected by bolts. Cutting teeth are provided at the lower end of the drilling pipe (8). The sampling motor (5) is rotatably connected to a motor shaft (21) at the center of its lower end. A square connecting shaft (29) is fixedly connected to the center of the lower end of the motor shaft (21). A drive gear shaft (30) is sleeved on the outside of the lower end of the connecting shaft (29). The lower end of the drive gear shaft (30) passes through the inside of the vibrator (6) and extends to the outside of the lower end of the vibrator (6). The active gear shaft (30) is fixedly connected to an active helical gear (32). A gear chamber (33) is opened at the center of the vibrator (6), and the active helical gear (32) is located at the center of the gear chamber (33). Two vibration chambers (34) are provided on both the left and right sides of the gear chamber (33), and the four vibration chambers (34) are respectively opened at the left and right ends of the vibrator (6). The active helical gear (32) is meshed with a driven helical gear (35) at both the left and right ends. An eccentric wheel (36) is engaged inside each of the four vibration chambers (34), and the four eccentric wheels (36) are rotatably connected inside the four vibration chambers (34). The rear ends of the two inner eccentric wheels (36) are provided with a rear connecting shaft (37), and the front ends of the two outer eccentric wheels (36) are provided with a front connecting shaft (38). Both ends of the rear connecting shaft (37) and the front connecting shaft (38) are fixedly connected with linkage gears (39), and the four linkage gears (39) mesh with four eccentric wheels (36) respectively. The rear connecting shaft (37) is connected to the two inner eccentric wheels (36) through two linkage gears (39), and the front connecting shaft (38) is connected to the two outer eccentric wheels (36) through two linkage gears (39). The two driven helical gears (35) are away from the driving gear. Each helical gear (32) has a driven gear shaft (40) fixedly connected to the center of one end. The driven helical gear (35) on the left side is fixedly connected to the eccentric wheel (36) on the inner side of the left end through the driven gear shaft (40). The driven helical gear (35) on the right side is fixedly connected to the eccentric wheel (36) on the outer side of the right end through the driven gear shaft (40). The driven gear shaft (40) on the right side passes through the eccentric wheel (36) on the inner side of the right end and is rotatably connected to the eccentric wheel (36) on the inner side of the right end.

2. The hydrogeological exploration and sampling structure according to claim 1, characterized in that: The upper left and right sides of the limiting support (1) are provided with angle adjustment grooves (9), and the two angle adjustment grooves (9) are located on the rear side of the two rotating seats (2). The two angle adjustment grooves (9) are slidably connected with angle adjustment slides (10). The upper front side of the two angle adjustment slides (10) and the lower two corners of the rear end of the support frame (3) are fixedly connected with connecting heads (11). The two connecting heads (11) on the left and the two connecting heads (11) on the right are rotatably connected with angle adjustment side rods (12). The upper side of the two rotating seats (2) is provided with angle adjustment scales (13). The lower side of the left and right ends of the support frame (3) is provided with angle adjustment pointers (14), and the two angle adjustment pointers (14) are located on the upper side of the two angle adjustment scales (13).

3. The hydrogeological exploration and sampling structure according to claim 2, characterized in that: The support frame (3) has lifting grooves (15) on the inner walls of both the left and right ends. Each of the two lifting grooves (15) has a lifting screw (16). Each of the two lifting screws (16) has a limit block (17) fixedly connected to its upper and lower ends. The two limit blocks (17) on the upper side are located within the boundary of the circle where the upper end of the lifting screw (16) is located. The support frame (3) has a limit sealing plate (18) fixedly connected to its upper left and right sides by bolts. The two limit blocks (17) on the upper side are respectively locked inside the two limit sealing plates (18), and the two limit blocks (17) on the lower side are respectively locked inside the inner walls of the lower end of the two lifting grooves (15). The lifting crossbar (4) has a belt groove (19) on its upper left side and lower right side. The two belt grooves (19) are located on the lower left and right sides of the sampling motor (5).

4. The hydrogeological exploration and sampling structure according to claim 3, characterized in that: Both belt grooves (19) are rotatably connected to internal threaded shafts (20) at the ends away from the sampling motor (5), and the two internal threaded shafts (20) are threaded to the outside of the two lifting screws (16). The inner wall of the upper side of the internal threaded shaft (20) on the left, the inner wall of the lower side of the internal threaded shaft (20) on the right, and the inner walls of the upper and lower sides of the motor shaft (21) are all provided with linkage tooth grooves (22). The upper and lower ends of the two internal threaded shafts (20) are provided with limiting rings (23), and are engaged in the two belt grooves (19) through the limiting rings (23). The motor shaft (21) and the internal threaded shaft (20) are connected by linkage belts (24), and the two linkage belts (24) are engaged in the four linkage tooth grooves (22) and mesh with the four linkage tooth grooves (22).

5. The hydrogeological exploration and sampling structure according to claim 4, characterized in that: The lifting crossbar (4) is fixedly connected to the lower side of the center of both ends of the front and rear ends with connecting plates (25). The two connecting plates (25) are connected to the upper and lower ends with connecting slide rods (26). The four connecting slide rods (26) are fixedly connected to the four corners of the upper end of the vibrator (6). The four connecting slide rods (26) are fixedly connected to the upper and lower sides of the connecting plates (25) with spring limiting rings (27). The eight spring limiting rings (27) are provided with shock-absorbing springs (28) between the two connecting plates (25) and the eight shock-absorbing springs (28) and are elastically connected to the two connecting plates (25) through the eight shock-absorbing springs (28).

6. The hydrogeological exploration and sampling structure according to claim 5, characterized in that: The upper end of the drive gear shaft (30) is provided with a conversion groove (31), and the connecting pin (29) is inserted into the conversion groove (31). The upper side of the conversion groove (31) is cylindrical, and the lower side of the conversion groove (31) is square.

7. The hydrogeological exploration and sampling structure according to claim 6, characterized in that: The lower end of the drive gear shaft (30) is fixedly connected to a telescopic shaft (41), and the telescopic shaft (41) is snapped onto the lower end of the vibrator (6) and passes through the upper end of the connecting seat (7). The connecting seat (7) has a locking chamber (42) inside. The upper side of the locking chamber (42) is cylindrical, and the lower side of the locking chamber (42) is square. The upper end of the locking chamber (42) is rotatably connected to an upper pre-rotation ring (43), and the upper pre-rotation ring (43) is fixedly connected to the lower end of the telescopic shaft (41). The lower end of the upper pre-rotation ring (43) is fixedly connected to a cylindrical upper locking pin (44). The upper outer side of the upper pre-rotation ring (43) is rolled with multiple lifting balls. 45), and the upper ends of multiple lifting balls (45) are attached to the upper inner wall of the locking chamber (42). A cylindrical lower locking post (46) is fixedly connected to the center of the lower inner wall of the locking chamber (42). A lower pre-rotation ring (47) is engaged inside the lower side of the locking chamber (42) and is slidably connected to the lower pre-rotation ring (47). The lower pre-rotation ring (47) is sleeved on the upper outside of the lower locking post (46). A pre-compression spring (48) is provided at the lower end of the lower pre-rotation ring (47). The pre-compression spring (48) is provided outside the lower locking post (46). A locking tooth groove (49) is opened at the lower end of the upper locking post (44). A locking tooth (50) is provided at the upper end of the lower locking post (46).

8. The sampling method for a hydrogeological exploration sampling structure as described in claim 7, comprising the following steps: Step 1: Clean up any debris on the upper part of the sampling point and place the sampling structure stably on top of the sampling point; Step 2: Adjust the sampling angle by sliding the angle adjustment slide (10), and determine the precise angle to be adjusted by the angle adjustment pointer (14) indicating the angle adjustment scale (13); Step 3: Install the drill pipe (8) at the lower end of the connecting seat (7) with bolts, then hold the two handles at the rear end of the lifting crossbar (4), and control the sampling motor (5) to rotate forward to drive the drill pipe (8) downward into the formation mechanism. Press the connecting clip shaft (29) into the square interior of the conversion slide (31) and lock it with the drive gear shaft (30). Press the upper locking column (44) down to fit and lock it with the lower locking column (46). Let the vibrator (6) vibrate and the drill pipe (8) rotate, so that the drill pipe (8) vibrates and rotates while being pressed into the formation structure. Step 4: After the drilling pipe (8) has drilled to the specified depth, control the sampling motor (5) to reverse and drive the drilling pipe (8) and the sample inside the drilling pipe (8) to be pulled out from the formation mechanism. At the same time, the connecting pin (29) slides upward out of the square interior of the conversion groove (31) and is unlocked from the drive gear shaft (30). The upper locking pin (44) slides upward and separates from the lower locking pin (46), so that the drilling pipe (8) stops vibrating and rotating during the pulling process. Step 5: After the drill pipe (8) is fully pulled out, continue to control the sampling motor (5) to reverse so that the drill pipe (8) continues to rise. At the same time, the connecting shaft (29) slides back into the square interior of the conversion groove (31) under the action of multiple shock-absorbing springs (28) on the upper side and locks with the drive gear shaft (30), so that the sample inside the drill pipe (8) can be shaken out, thereby obtaining the sample. Step 6: Collect and number the extracted samples, and finally send them for testing.

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