A sampling and testing drilling device

Abstract

The present invention discloses a sampling and testing drilling device, which relates to the field of sampling equipment, and includes a drill bit, a rotating mechanism, a propulsion mechanism and a support frame, wherein the support frame is slidably connected with a support seat, the propulsion mechanism is used to push the support seat to move, the drill bit is rotatably connected with the support seat, the rotating mechanism is used to drive the drill bit to rotate, a plurality of sampling tubes are vertically arranged in the drill bit, the sampling tubes are provided with sampling ports, and are fixed with a drill tooth ring for drilling, a polyhedron is fixedly arranged at one end of the sampling tube away from the drill tooth ring, the drill bit is rotatably connected with a polyhedron for driving the polyhedron to rotate, a worm gear is coaxially fixed on the outside of the polyhedron, the drill bit is rotatably connected with a worm gear meshed with the worm gear, the rotating mechanism is provided with a connecting piece, the connecting piece is used to connect the drill bit or the worm gear, and a translation piece for driving the polyhedron to move along the axial direction is also provided in the drill bit. The present application has the effect of reducing the number of drilling times, increasing the sampling range, and thus improving the sampling efficiency.

Description

Technical Field

[0001] The invention relates to the field of sampling equipment, in particular to a sampling and testing drilling device. Background Art

[0002] In mining operations, geological exploration is a necessary task before mining. During geological exploration activities, most geological data are in the soil or rocks underground. When collecting geological data, special drilling equipment and methods are required to obtain samples from below the surface.

[0003] Related technology can refer to the Chinese patent with announcement number CN216349664U, which discloses a geological sampling device for coal mines. The upper end of the frame is connected to the reduction motor, and the hydraulic cylinder is connected to the reduction motor through a connecting plate. The lower end of the hydraulic cylinder is provided with a first rotating motor and a drill bit, and a rotating shaft for sampling is provided inside the drill bit. The side of the frame is connected to a fixed frame, and a second rotating motor and a grinder are installed on the fixed frame. The device performs sampling while drilling, making the sampling process more convenient. The sample after sampling is ground using a grinder, which can realize the integrated operation of sampling and grinding, and effectively improve work efficiency.

[0004] Regarding the above-mentioned related technologies, when extracting samples through the rotating shaft and the second spiral pattern, the extraction range of the sample is affected by the diameter of the drill bit. The extraction range of the sample is within the borehole drilled by the drill bit. If the extraction range of the sample needs to be expanded, the drilling and sampling process needs to be repeated, which affects the sampling efficiency. Summary of the invention

[0005] In order to reduce the number of drilling times and increase the sampling range, thereby improving the sampling efficiency, the present application provides a sampling detection drilling device.

[0006] The present application provides a sampling and detection drilling device, which adopts the following technical solution:

[0007] A sampling and testing drilling device comprises a drill bit, a rotating mechanism, a propulsion mechanism and a support frame, wherein the support frame is slidably connected with a support seat along the length direction, the propulsion mechanism is fixedly connected to the support frame and is used to push the support seat to move, the drill bit is located above the support seat and is arranged along the moving direction of the support seat, the drill bit is rotatably connected to the support seat, the rotating mechanism is arranged at the upper end of the support seat and is used to drive the drill bit to rotate, the drill bit is hollow, and a plurality of sampling tubes are arranged inside the drill bit along the length direction, the sampling tubes are arranged vertically with the drill bit, and the drill bit is provided with avoidance openings corresponding to the sampling tubes along the diameter direction. A drill tooth ring is fixedly arranged at one end of the tube close to the avoidance opening, and a sampling port adapted to the drill tooth ring is opened. A polygonal column is fixedly arranged at one end of the sampling tube away from the drill tooth ring. The drill bit is rotatably connected to a polygonal tube adapted to the polygonal column. The polygonal tube is sleeved on the outside of the polygonal column to drive the polygonal column to rotate. A worm gear is coaxially fixed to the outside of the polygonal tube. The drill bit is rotatably connected to a worm meshing with the worm gear. The worm gear is parallel to the axis of the drill bit. The rotating mechanism is provided with a connecting piece for driving the worm gear to rotate. At the same time, the connecting piece is connected or separated from the drill bit. A translation piece is also provided in the drill bit for driving the polygonal column to move along the axial direction.

[0008] By adopting the above technical solution, the support frame provides support for the support seat, the drilling and rotating device and the propulsion mechanism. When the rotating mechanism drives the drill bit to rotate, the propulsion mechanism drives the support seat to move, thereby realizing axial drilling of the drill bit. When the drill bit moves, it drives all the sampling tubes to move. When the sampling tube moves to the sampling position, the connecting piece is separated from the drill bit, and the connecting piece is connected to the worm. After the drill bit is positioned, the worm is driven to rotate through the connecting piece when the rotating mechanism works. Through the meshing action of the worm and the corresponding worm wheel, when the worm rotates, it drives the corresponding worm wheel to rotate. When the worm wheel rotates, the multi-prism is driven to rotate through the multi-prism. At this time, the multi-prism is driven to move along the axis direction through the translation member, so that the rotating multi-prism pushes the sampling tube to extend out of the avoidance port. When the multi-prism rotates, it drives the sampling tube to rotate and drills at the sampling position through the drill tooth ring, and samples are taken through the sampling port. In the same borehole, the sampling position of the sampling tube can be adjusted by rotating the drill bit, and the extended length of the sampling tube can be controlled to facilitate sampling at different positions for multiple times, which is beneficial to reduce the number of drilling times while increasing the sampling range, thereby improving the sampling efficiency.

[0009] Optionally, the telescopic part includes a plurality of threaded rods, which correspond to the polygonal columns one by one. The threaded rods are fixedly connected to the drill bit and are coaxially arranged with the corresponding polygonal columns. A threaded hole matching the threaded rod is provided on the side of the polygonal column away from the sampling port, and the threaded rods are threadedly connected to the corresponding threaded holes.

[0010] By adopting the above technical solution, the threaded rod cooperates with the threaded hole, so that the drill bit limits and guides the polygonal column. When the polygonal column rotates around the threaded rod, it also moves along the axis of the threaded rod, and then the sampling tube is translated by rotating the polygonal column in different directions.

[0011] Optionally, the sampling tube is provided with a sample holding ring, which is coaxially arranged with the sampling tube and has a fracture on one side of the sample holding ring along the axis. When the sample holding ring is in a natural state, the two side edges of the sample holding ring at the fracture are separated from each other, and the diameter of the outer wall of the sample holding ring gradually decreases in the direction of the multi-faceted rod pointing to the sampling tube. The sampling tube is provided with an annular groove for placing the sample holding ring, and the sample holding ring is located in the annular groove and is slidably connected to the inner wall of the annular groove along the axial direction.

[0012] By adopting the above technical scheme, in the initial state, when the sampling tube drills and samples the rock, the rock sample enters the sampling port and passes through the middle of the sample ring and fits against the inner wall of the sample ring. At this time, the sample ring is in the end of the annular groove close to the polygonal prism. When the sampling tube is recovered, the rock sample exerts a friction force on the sample ring away from the polygonal prism. When the sample ring moves away from the polygonal prism along the annular groove, it has a tendency to shrink in the annular direction. At this time, the sample ring holds the rock sample tightly, and then cuts off the sample through the sampling tube, so that the sample stays in the sampling port.

[0013] Optionally, the connecting member includes a rotating shaft, a gear set and a driving tube. The rotating shaft is rotatably connected to the support seat, and the rotating shaft is connected to the rotating mechanism. The rotating mechanism drives the rotating shaft to rotate when it is working. The support seat is provided with a support frame. The drill bit penetrates the support frame along the length direction and is rotatably connected to the support frame. The rotating shaft and the drill bit are coaxially arranged. The gear set is located between the rotating shaft and the worm. The rotating shaft drives the worm to rotate through the gear set. The driving tube is sleeved on the outside of the rotating shaft and rotates with the rotating shaft. The driving tube is sleeved on the outside of the drill bit, and a plurality of driving blocks are fixed on the side of the driving tube close to the drill bit. The drill bit is provided with a plurality of slots adapted to the driving blocks along the circumferential direction. The support seat is provided with a limiting member for positioning the drill bit.

[0014] By adopting the above technical solution, the rotating mechanism drives the rotating shaft to rotate, and the rotating shaft drives the driving tube to rotate. In the initial state, when the driving block is inserted into the slot, the driving tube drives the drill bit to rotate synchronously when it rotates. When the drill bit rotates, it drives the worm to rotate around the rotating shaft. At this time, the gear set and the worm are in a relatively static state. After the driving tube is moved along the axial direction and the drill bit is fixed by the limiter, the rotating shaft drives the worm to rotate through the gear set when it rotates, thereby realizing the control of the sampling tube.

[0015] Optionally, the limiting member includes a pushing cylinder, a clamping block and a pushing rod. Two groups of clamping blocks are provided. The two groups of clamping blocks are respectively located on both sides of the drill bit in the radial direction and are slidably connected to the support seat in the direction approaching or moving away from the drill bit. The pushing cylinder is fixedly connected to the support seat and is used to drive the clamping block to move. The lower end of the driving tube is axially slidably connected to the support seat. The pushing rod is located between the clamping block and the driving tube. A moving ring is connected to the outer side of the driving tube in a circumferential rotation. One end of the pushing rod is hinged to the clamping block, and the other end is hinged to the moving ring.

[0016] By adopting the above technical solution, in the initial state, the clamping block is in a position away from the drill bit, and the driving block is inserted in the slot. When the pushing cylinder drives the clamping block to approach the drill bit and clamps and positions the drill bit, the clamping block drives the moving ring and the driving tube away from the drill bit through the pushing rod during the movement, thereby realizing the separation of the driving tube and the drill bit while positioning the drill bit.

[0017] Optionally, a sealing plate is further provided in the drill bit, which is located on one side of the drill bit where the avoidance opening is provided. The sealing plate is slidably connected to the drill bit along the axial direction of the drill bit. A swivel is rotatably connected to the inner side of the driving tube. One end of the sealing plate close to the driving tube is fixedly connected to the swivel. The sealing plate is provided with a through opening corresponding to the avoidance opening one by one. When the through opening is opposite to the avoidance opening, the driving tube is separated from the drill bit.

[0018] By adopting the above technical solution, the driving tube is connected to the sealing plate through the swivel. In the initial state, when the driving tube is connected to the drill bit, the through port and the avoidance port are relatively skewed. At this time, the sealing plate blocks the avoidance port, thereby reducing the probability of soil and gravel entering the drill bit along the avoidance port. When sampling is required, the driving tube drives the sealing plate to move through the swivel when it is away from the drill bit. When the through port and the avoidance port are connected, the driving tube is completely separated from the drill bit. When sampling, the sampling tube passes through the through port and the avoidance port in turn to take samples.

[0019] Optionally, the sampling tube has a discharge port opened along the axial direction of the drill bit, the discharge port is connected with the sampling port, and the maximum diameter of the sampling port is smaller than the diameter of the discharge port, a push rod is hinged on the side of the sealing plate away from the avoidance port, the hinge axis of the push rod is perpendicular to the axis of the drill bit, a guide rod is vertically fixed to the end of the push rod away from the sealing plate, a guide block corresponding to the push rod is fixed in the drill bit, and a guide groove adapted to the guide rod is opened in the guide block, and the guide groove gradually bends in the direction away from the avoidance port along the direction of the drill bit away from the driving tube, the guide rod is inserted in the guide groove and is slidably connected to the guide block along the inner wall of the guide groove, and a discharge box corresponding to the sampling tube is provided in the drill bit, and the discharge box is directly opposite to the discharge port of the corresponding sampling tube.

[0020] By adopting the above technical solution, when sampling downward, when the through port is facing the avoidance port, the guide rod is located at one end of the guide groove close to the driving tube, and the push rod is close to the blocking plate. When the sampling is completed and the sampling tube is recovered into the drill bit, the blocking plate is operated to block the avoidance port. At this time, the guide column moves along the guide groove, and the guide column drives the push rod close to the polygonal column when moving, and the push rod pushes the sample in the sampling port to the discharge port. At this time, the sample enters the discharge box under the action of gravity, which makes it easy to extract multiple samples at one time.

[0021] Optionally, the blocking plate is fixed with a push rod corresponding to the sampling tube one by one, and the push rod is located on the side of the sampling tube away from the discharge box, and a push plate is fixed on the side of the push rod close to the corresponding sampling tube, and the push plate is directly opposite to the discharge port of the corresponding feeding tube.

[0022] By adopting the above technical solution, when the push rod drives the sample into the discharge port, the push rod drives the push plate to contact the sample at the discharge port, thereby reducing the probability of the sample getting stuck at the discharge port.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The support frame provides support for the support seat, the drilling and rotating device and the propulsion mechanism. When the rotating mechanism drives the drill bit to rotate, the propulsion mechanism drives the support seat to move, thereby realizing the axial drilling of the drill bit. When the drill bit moves, it drives all the sampling tubes to move. When the sampling tube moves to the sampling position, the connecting piece is separated from the drill bit, and the connecting piece is connected to the worm. After the drill bit is positioned, the worm is driven to rotate through the connecting piece when the rotating mechanism is working. Through the meshing action of the worm and the corresponding worm gear, the corresponding worm gear is driven to rotate when the worm rotates. When the worm gear rotates, the multi-prism is driven to rotate through the multi-prism. At this time, the multi-prism is driven to move along the axis direction through the translation member, so that the rotating multi-prism pushes the sampling tube to extend out of the avoidance port. When the multi-prism rotates, it drives the sampling tube to rotate and drills at the sampling position through the drill gear ring, and samples are taken through the sampling port. In the same borehole, the sampling position of the sampling tube is adjusted by rotating the drill bit, and the extended length of the sampling tube is controlled to facilitate sampling at different positions for multiple times, which is beneficial to reduce the number of drilling times while increasing the sampling range, thereby improving the sampling efficiency.

[0025] 2. In the initial state, when the sampling tube drills and samples the rock, the rock sample enters the sampling port and passes through the middle of the sample ring and fits against the inner wall of the sample ring. At this time, the sample ring is at one end of the annular groove close to the polygonal prism. When the sampling tube is recovered, the rock sample exerts a friction force on the sample ring away from the polygonal prism. When the sample ring moves away from the polygonal prism along the annular groove, it tends to shrink in the annular direction. At this time, the sample ring holds the rock sample tightly, and then cuts off the sample through the sampling tube, so that the sample stays in the sampling port. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0027] Figure 2 This is a schematic diagram intended to highlight the connection structure between the drill bit and the support seat.

[0028] Figure 3 This is a diagram intended to highlight the internal structure of a drill bit.

[0029] Figure 4 yes Figure 3 Enlarged schematic diagram of part A.

[0030] Figure 5 is a schematic diagram intended to highlight the structure of the sampling tube.

[0031] Figure 6 It is a schematic diagram intended to highlight the relative position of the sampling tube and the sealing plate.

[0032] Description of the accompanying drawings: 1. drill bit; 11. avoidance; 12. polygonal tube; 13. worm wheel; 14. worm; 15. translation member; 16. slot; 17. blocking plate; 171. through port; 172. ejector rod; 173. guide rod; 174. push rod; 175. push plate; 18. discharge box; 19. guide block; 191. guide groove; 2. rotating mechanism; 3. propulsion mechanism; 4. support frame; 41. support seat; 42. base; 421. Flipping member; 43, moving frame; 431, pushing member; 44, limiting member; 441, pushing cylinder; 442, holding block; 443, pushing rod; 5, sampling tube; 51, drill gear ring; 52, sampling port; 521, annular groove; 522, sample holding ring; 523, feeding port; 53, polygonal column; 531, threaded hole; 61, rotating shaft; 62, gear set; 63, driving tube; 631, driving block; 632, rotating ring; 633, moving ring. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0034] The embodiment of the present application discloses a sampling and detection drilling device.

[0035] Example:

[0036] Reference Figure 1 and Figure 2 A sampling and testing drilling device includes a drill bit 1, a rotating mechanism 2, a propulsion mechanism 3 and a support frame 4. A base 42 is provided at the lower end of the support frame 4. The base 42 is vertically hinged with the support frame 4. A flipping member 421 is installed on the base 42. The flipping member 421 is used to drive the base 42 to flip vertically. A moving frame 43 is provided at the lower end of the base 42. A plurality of moving wheels are installed at the lower end of the moving frame 43. The moving frame 43 is vertically hinged with the base 42, and the moving frame 43 is also provided with a pushing member 431 for pushing the base 42 to rotate. The hinged part of the moving frame 43 and the base 42 is far away from the connection between the support frame 4 and the base 42. When the moving frame 43 moves, the base 42 and the support frame 4 are driven to move synchronously. The flipping member 421 and the pushing member 431 are both cylinders. In other embodiments, the flipping member 421 and the pushing member 431 can also be hydraulic cylinders or electric cylinders, which can realize the flipping of the support frame 4 and the base 42. No limitation is made here.

[0037] Reference Figure 1 and Figure 2 The upper end of the support frame 4 is slidably connected with a support seat 41 along the length direction. The drill bit 1 is located at the upper end of the support seat 41 and is rotatably connected to the support seat 41 along the circumferential direction. The drill bit 1 is arranged in parallel with the support frame 4. When the base 42 moves, the drill bit 1 is driven to move synchronously. The propulsion mechanism 3 includes a stepper motor and a lead screw. The lead screw is arranged along the length direction of the support frame 4 and is rotatably connected to the support frame 4. The lead screw passes through the base 42 and is threadedly connected to the support seat 41. The support frame 4 limits and guides the support seat 41, so that the support seat 41 is driven to move when the lead screw rotates. The stepper motor is fixedly connected to the support frame 4. When the support frame 4 moves, the stepper motor is driven to move. The output shaft of the stepper motor is connected to the lead screw. When the stepper motor works, the lead screw is driven to rotate.

[0038] Reference Figure 2 and Figure 3 The rotating mechanism 2 includes a rotating motor, which is mounted on the upper end of the support seat 41 and moves with the support seat 41. A connecting piece is provided between the rotating mechanism 2 and the drill bit 1, and the connecting piece includes a rotating shaft 61 and a driving tube 63. The rotating shaft 61 is connected to the output shaft of the rotating motor, and drives the rotating shaft 61 to rotate when the rotating motor works. The driving tube 63 is sleeved on the outside of the rotating shaft 61 and is slidably connected to the rotating shaft 61 along the length direction of the rotating shaft 61. The cross section of the rotating shaft 61 is polygonal, and drives the driving tube 63 to rotate when the rotating shaft 61 rotates around the circumference.

[0039] Reference Figure 1 and Figure 3 The driving tube 63 is coaxially arranged with the drill bit 1. A plurality of slots 16 are provided along the circumferential direction at one end of the drill bit 1 close to the rotating motor. A plurality of driving blocks 631 adapted to the slots 16 are fixedly connected along the inner side of the driving tube 63. In the initial state, the driving tube 63 is sleeved on the outer side of the drill bit 1. At this time, the driving blocks 631 are inserted into the corresponding slots 16. Then, when the driving tube 63 rotates, the drill bit 1 is driven to rotate, so that the drill bit 1 drills the sampling area. When the angle of the support frame 4 or the base 42 is adjusted, the angle of the drill bit 1 moves accordingly, so as to facilitate drilling in different directions.

[0040] Reference Figure 1 and Figure 2The support seat 41 is provided with a limiter 44 for fixing the drill bit 1. The limiter 44 includes a pushing cylinder 441, a clamping block 442 and a pushing rod 443. Two groups of clamping blocks 442 are provided. The two groups of clamping blocks 442 are respectively located on both sides of the drill bit 1 in the horizontal direction, and the clamping blocks 442 are slidably connected with the support seat 41 in the direction of approaching or moving away from the drill bit 1. When the support seat 41 moves, the clamping blocks 442 are driven to move. The clamping blocks 442 are provided with latch teeth on the side close to the drill bit 1. When the two clamping blocks 442 are close to each other and both contact the drill bit 1, the rotation of the drill bit 1 in the circumferential direction is limited. The pushing cylinder 441 corresponds to the clamping block 442 one by one, and the pushing cylinder 441 is installed at the upper end of the support seat 41 to push the clamping block 442 to move.

[0041] Reference Figure 2 and Figure 3 , the outer side of the driving tube 63 is connected to a moving ring 633 that rotates in the circumferential direction. When the moving ring 633 moves along the axial direction, it drives the driving tube 63 to move, so as to realize the connection and separation between the driving tube 63 and the drill bit 1. The moving ring 633 is slidably connected to the support seat 41 along the axial direction, and the support seat 41 guides the moving ring 633. A push rod 443 is arranged between the clamping block 442 and the moving ring 633. One end of the push rod 443 is hinged to the clamping block 442, and the other end is hinged to the moving ring 633. In the initial state, when the clamping block 442 is at a position away from the drill pipe, the driving tube 63 is sleeved on the outer side of the drill bit 1. When the clamping block 442 is close to the drill bit 1, the push rod 443 drives the moving ring 633 away from the drill bit 1.

[0042] Reference Figure 2 and Figure 3 The drill bit 1 is hollow, and multiple sampling tubes 5 are arranged in the drill bit 1 along the length direction. The axis of the sampling tube 5 is perpendicular to the drill bit 1. The drill bit 1 is provided with avoidance openings 11 corresponding to the sampling tubes 5 one by one, and one end of the sampling tube 5 is directly opposite to the avoidance opening 11. A multi-prism 53 is coaxially fixed to one end of the sampling tube 5 away from the avoidance opening 11, and the multi-prism 53 moves to drive the sampling tube 5 to move. A multi-prism 12 adapted to the multi-prism 53 is rotatably connected in the drill bit 1. The multi-prism 12 is sleeved on the outside of the multi-prism 53 and fits the multi-prism 53, and then when the multi-prism 12 rotates, it drives the multi-prism 53 to rotate.

[0043] Reference Figure 2 and Figure 3The drill bit 1 is also provided with a translation member 15 adapted to the polygonal column 53. The translation member 15 is a threaded rod. The threaded rod is located at one end of the polygonal column 53 away from the sampling tube 5 and is coaxially arranged with the polygonal column 53. The polygonal column 53 is provided with a threaded hole 531 adapted to the threaded rod. The threaded rod is inserted into the threaded hole 531 and threadedly engaged with the threaded hole 531. Under the cooperation of the threaded rod and the threaded hole 531, when the polygonal column 53 rotates, it moves along the axis direction of the threaded rod, thereby driving the sampling tube 5 to approach or move away from the avoidance opening 11.

[0044] Reference Figure 3 and Figure 4 The polygonal tube 12 is coaxially fixed with a worm gear 13. When the worm gear 13 rotates, the polygonal tube 12 is driven to rotate. A worm 14 is arranged along the axis direction in the drill bit 1. The worm 14 meshes with all the worm gears 13. When the worm 14 rotates, all the worm gears 13 are driven to rotate. The connecting member also includes a gear set 62. The gear set 62 is located between the rotating shaft 61 and the worm 14. When the rotating shaft 61 and the drill bit 1 rotate relative to each other, the rotating shaft 61 drives the worm 14 to rotate through the gear set 62.

[0045] Reference Figure 3 and Figure 4 , a plugging plate 17 is also provided in the drill bit 1. The plugging plate 17 is located on one side of the drill bit 1 where the avoidance opening 11 is provided, and the plugging plate 17 is slidably connected to the drill bit 1 along the axial direction of the drill bit 1, and drives the plugging plate 17 to move when the drill bit 1 moves. A swivel 632 is circumferentially connected to the side of the driving tube 63 close to the plugging plate 17, and the plugging plate 17 is fixedly connected to the swivel 632. The plugging plate 17 is provided with a plurality of through openings 171 corresponding to the avoidance opening 11 along the length direction. When the driving tube 63 is connected to the drill bit 1 and drives the drill bit 1 to rotate, the through openings 171 are staggered with the corresponding avoidance openings 11. At this time, the plugging plate 17 blocks the avoidance opening 11, thereby reducing the probability of debris such as soil or rock fragments entering the drill bit 1 along the avoidance opening 11.

[0046] Reference Figure 2 and Figure 3 When drilling is completed, the clamping block 442 is manipulated to approach the drill bit 1 and position the drill bit 1. When the clamping block 442 moves, the driving tube 63 is driven to separate from the drill bit 1 through the push rod 443. When the driving tube 63 moves, the blocking plate 17 is driven to move through the rotating ring 632. When the clamping block 442 clamps the drill bit 1, the through hole 171 is directly opposite to the corresponding avoidance hole 11. At this time, the rotating mechanism 2 continues to drive the rotating shaft 61 to rotate, so that the rotating shaft 61 drives the worm 14 to rotate through the gear set 62, and then the polygonal tube 12 drives the polygonal column 53 to rotate. While driving the sampling tube 5 to rotate, the polygonal column 53 drives the sampling tube 5 close to the avoidance hole 11 under the action of the threaded rod.

[0047] Reference Figure 3 and Figure 4The sampling tube 5 is fixed with a drill tooth ring 51 at one end away from the polygonal column 53. When the sampling tube 5 rotates, the drill tooth ring 51 is driven to rotate. The sampling tube 5 is also provided with a sampling port 52 at one end away from the polygonal column 53. The sampling tube 5 passes through the through port 171 and the avoidance port 11 in sequence and contacts the inner wall of the borehole in the sampling area, and then drills into the sampling area through the drill tooth ring 51. At this time, the sample enters the sampling port 52. When the sampling tube 5 is extended to a predetermined length, the sample volume in the sampling port 52 meets the test requirements. At this time, the rotating mechanism 2 (reference Figure 2 ) drives the worm 14 to rotate in the opposite direction, thereby causing the polygonal column 53 to drive the sampling tube 5 to be recovered.

[0048] Reference Figure 4 and Figure 5 , a sample ring 522 is provided in the sampling tube 5, and the outer diameter of the sample ring 522 gradually decreases along the direction of the polygonal column 53 pointing to the sampling tube 5. An annular groove 521 is provided in the sampling tube 5, and the sample ring 522 is located in the annular groove 521 and is slidably connected to the sampling tube 5 along the axial direction of the annular groove 521. The sample ring 522 is made of a deformable material, such as spring steel, and the sample ring 522 has a fracture along the axial direction. The sample ring 522 is in a deformed state, and the sides of the sample ring 522 are separated from each other along the fracture. In the initial state, under the action of the elasticity of the sample ring 522 itself, the sample ring 522 is on the side of the annular groove 521 close to the polygonal column 53.

[0049] Reference Figure 4 and Figure 5 During the sampling process, the sample passes through the sample clamping ring 522 when entering the sampling port 52. When the sampling tube 5 is recovered, the sample contacts the sample clamping ring 522 and exerts a friction force on the sample clamping ring 522 away from the polygonal column 53. At this time, the sample clamping ring 522 gradually tightens under the guidance of the annular groove 521, thereby holding and fixing the sample tightly, reducing the probability of the sample escaping from the sampling port 52. Furthermore, a plurality of cutting teeth are fixed along the circumferential direction at one end of the sample clamping ring 522 away from the polygonal column 53. When the sample clamping ring 522 is tightened, the sample is cut off by the cutting teeth.

[0050] Reference Figure 4 and Figure 6 A push rod 172 corresponding to the sampling tube 5 is provided on the side of the blocking plate 17 away from the avoidance opening 11. The push rod 172 is hinged to the blocking plate 17 along the length direction of the blocking plate 17. When the blocking plate 17 moves, the push rod 172 is driven to move. A guide rod 173 is fixed vertically to the position of the push rod 172 away from the blocking plate 17. The axis of the guide rod 173 is parallel to the hinge axis of the push rod 172. The drill bit 1 is fixed with a guide block 19 adapted to the guide rod 173. The guide block 19 is provided with a guide groove 191. The guide groove 191 gradually approaches the threaded rod along the direction in which the drill bit 1 is away from the driving tube 63.

[0051] Reference Figure 4and Figure 6 The guide rod 173 is inserted into the guide groove 191 and is slidably connected with the guide block 19 along the length direction of the guide groove 191. When the blocking plate 17 drives the through port 171 to communicate with the avoidance port 11, the guide rod 173 is located at one end of the corresponding guide groove 191 close to the driving tube 63, and the push rod 172 is close to the blocking plate 17. After the sampling is completed, the driving tube 63 is reset, and the blocking plate 17 drives the push rod 172 to move, so that the push rod 172 drives the guide rod 173 to move along the guide groove 191. When the guide rod 173 moves to the end of the guide groove 191 close to the threaded rod, the push rod 172 moves away from the end of the blocking plate 17 and enters the sampling port 52, thereby pushing the sample in the sampling port 52 to move toward the polygonal column 53.

[0052] Reference Figure 4 and Figure 6 , the sampling tube 5 is provided with a discharge port 523 along the axial direction of the drill bit 1, and the discharge port 523 is larger than the maximum diameter of the sampling port 52. When the blocking plate 17 moves to the maximum displacement, the sample is directly opposite to the discharge port 523. Furthermore, the end of the push rod 172 away from the blocking plate 17 is made of a flexible material, such as rubber, thereby reducing the probability of the push rod 172 colliding with the sampling tube 5 and causing it to get stuck. A discharge box 18 is also provided in the drill bit 1, and the drill bit 1 is provided with an opening for taking the discharge box 18. The discharge box 18 is provided with a plurality of countersunk bolts, which pass through the discharge box 18 and are threadedly connected to the drill bit 1. The discharge box 18 is directly opposite to the discharge port 523. When the drill bit 1 drills vertically downward, the sample at the discharge port 523 falls into the discharge box 18 under the action of gravity.

[0053] Reference Figure 4 and Figure 6 The sealing plate 17 is fixedly provided with a push rod 174 corresponding to the sampling tube 5, and the push rod 174 is located on the side of the sampling tube 5 away from the corresponding discharge box 18. The side of the push rod 174 close to the sampling tube 5 is fixedly provided with a push plate 175 adapted to the discharge port 523. When the sealing plate 17 moves, the push rod 174 drives the push plate 175 to approach the discharge port 523, thereby pushing the sample in the discharge port 523 to move toward the discharge box 18, which is beneficial to reduce the probability of the sample getting stuck at the discharge port 523.

[0054] The working principle of a sampling and testing drilling device in the embodiment of the present application is as follows: when drilling and sampling, the sampling area is drilled by the drill bit 1, and when the position of any avoidance opening 11 meets the requirements of the sampling position, the clamping block 442 is driven by the cylinder 441 to clamp the drill rod, and at this time, the driving tube 63 is separated from the drill bit 1 under the action of the moving ring 633 and the pushing rod 443. The rotating mechanism 2 drives the rotating shaft 61 to rotate, and under the connection action of the gear set 62, the rotating shaft 61 drives the worm 14 to rotate, so that the worm 14 drives all the worm wheels 13 to rotate. When the worm gear 13 rotates, it drives the polygonal tube 12 to rotate. When the polygonal tube 12 rotates, it drives the sampling tube 5 to rotate through the polygonal column 53. Under the limiting action of the threaded rod, when the polygonal column 53 rotates, it drives the sampling tube 5 to pass through the avoidance opening 11, and drills and samples the sample area through the drill tooth ring 51. After the sampling is completed, the rotating shaft 61 is rotated in the opposite direction to recover the sampling tube 5 and limit the sample through the sample clamping ring 522. After the sampling tube 5 completely enters the drill bit 1, the sealing plate 17 is reset and the sample is pushed into the discharge box 18 through the push rod 172 and the push plate 175. The drill bit 1 is rotated to facilitate the adjustment of the direction of the avoidance opening 11. At this time, the sampling tube 5 is manipulated again to take samples, which is beneficial to reduce the number of drilling times while increasing the sampling range, thereby improving the sampling efficiency.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sampling and testing drilling device, comprising a drill bit (1), a rotating mechanism (2), a propulsion mechanism (3) and a support frame (4), wherein the support frame (4) is slidably connected to a support seat (41) along the length direction, the propulsion mechanism (3) is fixedly connected to the support frame (4) and is used to push the support seat (41) to move, the drill bit (1) is located above the support seat (41) and is arranged along the moving direction of the support seat (41), the drill bit (1) is rotatably connected to the support seat (41), the rotating mechanism (2) is arranged at the upper end of the support seat (41) and is used to drive the drill bit (1) to rotate, and is characterized in that: The drill bit (1) is hollow and a plurality of sampling tubes (5) are arranged inside the drill bit (1) along the length direction. The sampling tubes (5) are arranged perpendicular to the drill bit (1). A avoidance opening (11) corresponding to the sampling tubes (5) is provided in the drill bit (1) along the diameter direction. A drill tooth ring (51) is fixedly provided at one end of the sampling tube (5) close to the avoidance opening (11), and a sampling opening (52) adapted to the drill tooth ring (51) is provided. A polygonal column (53) is fixedly provided at one end of the sampling tube (5) away from the drill tooth ring (51). The drill bit (1) is rotatably connected to a polygonal tube (12) adapted to the polygonal column (53). The polygonal tube (12) is sleeved on the outside of the polygonal column (53) and is used to drive the polygonal column (53) to rotate. A worm gear (12) is coaxially fixed to the outside of the polygonal tube (12). 3), the drill bit (1) is rotatably connected to a worm (14) meshing with a worm wheel (13), the worm (14) is parallel to the axis of the drill bit (1), the rotating mechanism (2) is provided with a connecting piece for driving the worm (14) to rotate, and the connecting piece is connected to or separated from the drill bit (1), and a translation piece (15) for driving the multi-prism (53) to move along the axial direction is also provided in the drill bit (1); the connecting piece includes a rotating shaft (61), a gear set (62) and a driving tube (63), the rotating shaft (61) is rotatably connected to the support seat (41), and the rotating shaft (61) is connected to the rotating mechanism (2), and the rotating mechanism (2) drives the rotating shaft (61) to rotate when working, the support frame (4) is provided with a support seat (41), and the drill bit (1) passes through the support seat along the length direction. (41) and is rotatably connected to the support seat (41), the rotating shaft (61) and the drill bit (1) are coaxially arranged, the gear set (62) is located between the rotating shaft (61) and the worm (14), the rotating shaft (61) drives the worm (14) to rotate through the gear set (62), the driving tube (63) is sleeved on the outside of the rotating shaft (61) and rotates with the rotating shaft (61), the driving tube (63) is sleeved on the outside of the drill bit (1), and a plurality of driving blocks (631) are fixedly arranged on a side of the driving tube (63) close to the drill bit (1), the drill bit (1) is provided with a plurality of slots (16) adapted to the driving blocks (631) along the circumferential direction, and the support seat (41) is provided with a limiting member (44) for positioning the drill bit (1); the limiting member (44) comprises a pushing cylinder (4 41), a clamping block (442) and a pushing rod (443), the clamping block (442) is provided with two groups, the two groups of clamping blocks (442) are respectively located on both sides of the drill bit (1) in the radial direction, and are slidably connected to the support seat (41) in the direction approaching or moving away from the drill bit (1), the pushing cylinder (441) is fixedly connected to the support seat (41) and is used to drive the clamping block (442) to move, the lower end of the driving tube (63) is slidably connected to the support seat (41) in the axial direction, the pushing rod (443) is located between the clamping block (442) and the driving tube (63), and the outer side of the driving tube (63) is connected to a moving ring (633) in a circumferential rotation, one end of the pushing rod (443) is hinged to the clamping block (442), and the other end is hinged to the moving ring (633).

2. A sampling and testing drilling device according to claim 1, characterized in that: The translation member (15) comprises a plurality of threaded rods, the plurality of threaded rods corresponding to the polygonal columns (53) one by one, the threaded rods being fixedly connected to the drill bit (1) and being coaxially arranged with the corresponding polygonal columns (53), a threaded hole (531) adapted to the threaded rod being arranged on a side of the polygonal columns (53) away from the sampling port (52), and the threaded rods being threadedly connected to the corresponding threaded holes (531).

3. A sampling and testing drilling device according to claim 1, characterized in that: The sampling tube (5) is provided with a sample clamping ring (522), which is coaxially arranged with the sampling tube (5), and one side of the sample clamping ring (522) is provided with a fracture along the axis. When the sample clamping ring (522) is in a natural state, the two sides of the sample clamping ring (522) at the fracture are separated from each other, and the diameter of the outer wall of the sample clamping ring (522) gradually decreases along the direction of the multi-faceted rod pointing to the sampling tube (5). The sampling tube (5) is provided with an annular groove (521) for accommodating the sample clamping ring (522), and the sample clamping ring (522) is located in the annular groove (521) and is slidably connected to the inner wall of the annular groove (521) along the axial direction.

4. A sampling and testing drilling device according to claim 1, characterized in that: The drill bit (1) is further provided with a blocking plate (17), which is located on a side of the drill bit (1) where the avoidance opening (11) is provided, and the blocking plate (17) is slidably connected to the drill bit (1) along the axial direction of the drill bit (1), a rotating ring (632) is rotatably connected to the inner side of the driving tube (63), and one end of the blocking plate (17) close to the driving tube (63) is fixedly connected to the rotating ring (632), and the blocking plate (17) is provided with a through hole (171) corresponding to the avoidance opening (11), and when the through hole (171) is directly opposite to the avoidance opening (11), the driving tube (63) is separated from the drill bit (1).

5. A sampling and testing drilling device according to claim 4, characterized in that: The sampling tube (5) is provided with a feed opening (523) along the axial direction of the drill bit (1), the feed opening (523) is communicated with the sampling opening (52), and the maximum diameter of the sampling opening (52) is smaller than the diameter of the feed opening (523); a push rod (172) is hingedly connected to the side of the blocking plate (17) away from the avoidance opening (11); the hinge axis of the push rod (172) is perpendicular to the axis of the drill bit (1); a guide rod (173) is vertically fixed to the end of the push rod (172) away from the blocking plate (17); and a guide block corresponding to the push rod (172) is fixedly provided in the drill bit (1). (19), the guide block (19) is provided with a guide groove (191) adapted to the guide rod (173), the guide groove (191) is gradually bent in the direction away from the avoidance opening (11) along the direction in which the drill bit (1) is away from the driving tube (63), the guide rod (173) is inserted into the guide groove (191) and is slidably connected to the guide block (19) along the inner wall of the guide groove (191), and a material discharge box (18) corresponding to each sampling tube (5) is provided in the drill bit (1), and the material discharge box (18) is directly opposite to the discharge opening (523) of the corresponding sampling tube (5).

6. A sampling and testing drilling device according to claim 5, characterized in that: The blocking plate (17) is fixedly provided with a push rod (174) corresponding to each sampling tube (5), and the push rod (174) is located on the side of the sampling tube (5) away from the material discharge box (18). A push plate (175) is fixedly provided on the side of the push rod (174) close to the corresponding sampling tube (5), and the push plate (175) is directly opposite to the discharge port (523) of the corresponding material taking tube.

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