Deep geological sample sampling device and sampling method

Abstract

The invention discloses a deep geological sample sampling device and a sampling method, and relates to the technical field of geological sampling measurement. The coring device comprises a water diversion connector, the lower portion of the water diversion connector is in screwed connection with an internal coring cylinder, the middle of the water diversion connector is in screwed connection with an external coring cylinder, a coring bit is arranged at the bottom of the external coring cylinder, and a coring inner cylinder is arranged in the internal coring cylinder. A rock core top clamping assembly is arranged between the coring inner cylinder and the built-in coring cylinder, a rock core bottom clamping assembly is arranged at the top of the coring inner cylinder, and a rapid coring assembly is arranged on the built-in coring cylinder; the rock core top clamping assembly and the rock core bottom clamping assembly are arranged, the rock core top plate clamping assembly and the rock core bottom clamping assembly are used for clamping and fixing the top and the bottom of a sampling rock column correspondingly, the stability of the rock column in the sampling and lifting process is guaranteed, and sample damage and loss caused by falling or instability of the rock column are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of geological sampling and determination, and in particular to a deep geological sample sampling device and a sampling method. Background Art

[0002] Deep geological sample sampling is an important geological exploration activity, which is usually used to study the composition, structure and physical and chemical properties of underground rocks, minerals and fluids. During the core sampling process, the bottom of the rock column is usually fixed. Clamping only the bottom may cause the rock column to swing or tilt during the lifting process, thereby damaging the integrity of the rock column and increasing the risk of fracture. Secondly, the rock column is traditionally removed from the sampling tube by physical knocking. This method may cause the rock column to be subjected to excessive external force or impact during the removal process, increasing the risk of rock column fracture, thereby affecting the integrity and representativeness of the collected samples. In response to the above problems, the inventors proposed a deep geological sample sampling device and a sampling method to solve the above problems. Summary of the invention

[0003] In order to solve the problem of the stability of the rock column during the sampling and extraction process and the problem of quickly and completely removing the rock column from the sampling tube; the purpose of the present invention is to provide a deep geological sample sampling device and a sampling method.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a deep geological sample sampling device, including a water diversion joint, the lower part of the water diversion joint is threadedly connected to an internal coring barrel, the middle part of the water diversion joint is threadedly connected to an external coring barrel, a coring drill bit is provided at the bottom of the external coring barrel, a coring inner barrel is provided inside the internal coring barrel, a core top clamping assembly is provided between the coring inner barrel and the internal coring barrel, a core bottom clamping assembly is provided on the top of the coring inner barrel, and a quick coring assembly is provided on the internal coring barrel.

[0005] Preferably, the core top clamping assembly includes twelve No. 2 built-in fixed blocks distributed in an annular array, a fixed shaft is fixed between two adjacent No. 2 built-in fixed blocks, a semicircular clamping protrusion is rotatably sleeved on the outer wall of the fixed shaft, six sliding frames distributed in an annular array are slidably arranged between the built-in coring barrel and the coring inner barrel, a connecting rod is rotatably arranged on one end of the semicircular clamping protrusion near the sliding frame, and the other end of the connecting rod is rotatably connected to the sliding frame, six connecting frames distributed in an annular array are fixed on the inner wall of the built-in coring barrel near the top of the sliding frame, and the sliding frame is near one side of the sliding frame A plug is inserted through it, a round block is fixedly sleeved on the outer wall of the plug, a No. 2 return spring is sleeved on the outer wall of the plug, and the two ends of the No. 2 return spring are respectively fixedly connected to the round block and the sliding frame, and the bottom of the connecting rod is inserted through the connecting frame, two symmetrically distributed sliders are fixedly provided on both sides of the sliding frame, a number of slide rails used in conjunction with the sliders are fixedly provided between the built-in coring barrel and the coring inner barrel, and the sliders are slidably connected to the slide rails, a No. 1 return spring is fixedly provided on the middle part of the sliding frame close to one side of the built-in coring barrel, and the other end of the No. 1 return spring is fixedly connected to the inner wall of the built-in coring barrel.

[0006] Preferably, the core bottom clamping assembly includes a fixed frame, which is fixedly installed in the middle of the top end of the coring inner cylinder, a guide rod is inserted through the fixed frame, a lifting plate is fixedly sleeved on the outer wall of the guide rod, a No. 3 return spring is sleeved on the outer wall of the guide rod, and both ends of the No. 3 return spring are respectively fixedly connected to the fixed frame and the lifting plate, a lifting frame is fixedly provided at the bottom end of the guide rod, and the lifting frame is slidably connected to the coring inner cylinder, two symmetrically distributed No. 1 connecting plates are rotatably provided at both ends of the fixed frame, a clamping plate is rotatably provided between two adjacent No. 1 connecting plates, two symmetrically distributed No. 2 connecting plates are rotatably provided at both ends of the lifting plate, and the other end of the No. 2 connecting plate is rotatably connected to the clamping plate, and clamping frames are fixedly provided on opposite sides of the two clamping plates.

[0007] Preferably, the rapid coring assembly includes twelve guide plates distributed in a circular array, the guide plates are fixedly mounted on the built-in coring barrel, two symmetrically distributed flip rods are rotatably provided between two adjacent guide plates, a connecting rod is slidably provided between the flip rods, six card plates distributed in a circular array are rotatably provided at the top of the built-in coring barrel, a synchronization rod is rotatably provided between two adjacent flip rods on the side away from the connecting rod, and the synchronization rod is rotatably connected to the card plate, two symmetrically distributed fixed columns are fixedly provided on both sides of the top of the connecting rod, a transverse groove for use with the fixed column is provided on the flip rod, a vertical groove for use with the fixed column is provided on the guide plate, and the two fixed columns at the bottom slide in the transverse groove and the vertical groove.

[0008] Preferably, the inner wall of the built-in coring barrel is provided with a slide groove used in conjunction with the lifting frame, and the slide groove is provided with six slide grooves distributed in a circular array, a pulley used in conjunction with the slide groove is rotatably installed on the lifting frame, and the pulley slides in the slide groove, the inner wall of the built-in coring barrel close to the slide groove is provided with six connecting grooves distributed in a circular array, and the No. 2 built-in fixed block is fixedly installed in the connecting groove, the bottom of the built-in coring barrel is provided with two symmetrically distributed clamping grooves used in conjunction with the clamping frame, the inner wall of the built-in coring barrel is fixedly provided with a number of No. 1 built-in fixed blocks distributed in a circular array, and a guide wheel is rotatably provided between two adjacent No. 1 built-in fixed blocks.

[0009] A sampling method used by a deep geological sample sampling device comprises the following steps:

[0010] S1. The rotation of the external coring barrel drives the coring drill bit to rotate synchronously, and the coring drill bit drills into the rock and soil to take samples;

[0011] S2, the coring drill bit rotates the sampled rock column into the coring inner tube and moves under the guidance of the guide wheel until it reaches the top clamping assembly of the core, and the top of the rock column is clamped and fixed by the top clamping assembly of the core. At this time, the coring drill bit cuts off the rock column and stops drilling;

[0012] S3, when the rock column contacts the top clamping assembly of the core, it continues to move upwards, driving the bottom clamping assembly of the core to clamp and fix the bottom cutoff of the rock column, and the stability of the rock column during the coring and ascending process is ensured by clamping and fixing the top and bottom of the rock column;

[0013] S4. When it is necessary to remove the rock column in the coring inner tube, manually remove the external coring tube, coring drill bit and internal coring tube from the water diversion joint, and then use the quick coring assembly to drive the top clamping assembly of the core to stop clamping and fixing the rock column, so that the rock column slides out of the coring inner tube under the guidance of the guide wheel, avoiding the breakage of the rock column caused by knocking during the coring process and ensuring the integrity of the rock column.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides a core top clamping assembly and a core bottom clamping assembly, and respectively clamps and fixes the top and bottom of the sampling rock column through the core top plate clamping assembly and the core bottom clamping assembly to ensure the stability of the rock column during the sampling and lifting process, thereby preventing the rock column from falling off or becoming unstable, causing damage and loss of the sample;

[0016] 2. The present invention provides a quick coring assembly, which drives the top clamping assembly of the core to stop clamping the top of the rock column and releases the limit of the bottom clamping device of the core, so that the rock column slides out from under the guide of the guide wheel in the built-in coring barrel. The operation is simple and convenient to improve the sampling efficiency, and avoid the rock column fracture caused by knocking the coring process to affect the collection of samples;

[0017] 3. The present invention sets a top clamping assembly for the core, so that the rock column drives the lifting frame to rise while driving the semicircular clamping protrusion to flip and drive the sliding frame to move through the connecting rod. The sliding frame drives the plug to move and insert it into the corresponding slot in the connecting frame. The plug triggers the quick coring assembly through the connecting rod and clamps and fixes the rock column through the semicircular clamping protrusion. After the top position of the rock column is fixed, the bottom clamping assembly of the core is limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the front section structure of the present invention; Figure 2 It is a schematic diagram of the split structure of the built-in coring barrel in the present invention; Figure 3 It is a structural schematic diagram of the core bottom clamping assembly in the present invention; Figure 4 It is a schematic diagram of the structure of the core top clamping assembly and the rapid coring assembly in the present invention; Figure 5 It is a schematic diagram of the structure of the slide groove, the connecting groove and the clamping groove in the present invention; Figure 6 for Figure 2 A schematic diagram of the structure enlargement at the center A; Figure 7 for Figure 3 A schematic diagram of the structure enlarged at B in the middle; Figure 8 for Figure 4 Enlarged schematic diagram of the structure at C in the middle.

[0027] In the figure: 1, water diversion joint; 2, external coring barrel; 3, coring drill bit; 4, internal coring barrel; 401, slide groove; 402, connecting groove; 403, clamping groove; 404, No. 1 internal fixing block; 405, guide wheel; 5, coring inner barrel; 6, core top clamping assembly; 601, No. 2 internal fixing block; 602, fixed shaft; 603, semicircular clamping protrusion; 604, slide rail; 605, slider; 606, sliding frame; 607, connecting rod; 608, No. 1 return spring; 609, plug; 610, round block; 611, No. 2 No. 1 reset spring; 612, connecting frame; 7, core bottom clamping assembly; 701, fixed frame; 702, guide rod; 703, lifting plate; 704, No. 1 connecting plate; 705, clamping plate; 706, No. 2 connecting plate; 707, No. 3 reset spring; 708, lifting frame; 709, pulley; 710, clamping frame; 8, fast coring assembly; 801, guide plate; 802, flip rod; 803, horizontal groove; 804, vertical groove; 805, connecting rod; 806, fixed column; 807, clamping plate; 808, synchronization rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example: Figure 1-8 As shown, the present invention provides a technical solution: a deep geological sample sampling device, comprising a water diversion joint 1, a built-in coring barrel 4 is connected to the lower thread of the water diversion joint 1, an external coring barrel 2 is connected to the middle thread of the water diversion joint 1, a coring drill bit 3 is provided at the bottom of the external coring barrel 2, a coring inner barrel 5 is provided inside the built-in coring barrel 4, a core top clamping assembly 6 is provided between the coring inner barrel 5 and the built-in coring barrel 4, a core bottom clamping assembly 7 is provided on the top of the coring inner barrel 5, and a quick coring assembly 8 is provided on the built-in coring barrel 4.

[0030] The core top clamping assembly 6 includes twelve No. 2 built-in fixed blocks 601 distributed in a circular array, a fixed shaft 602 is fixed between two adjacent No. 2 built-in fixed blocks 601, a semicircular clamping protrusion 603 is rotatably sleeved on the outer wall of the fixed shaft 602, six sliding frames 606 distributed in a circular array are slidably arranged between the built-in coring tube 4 and the coring inner tube 5, a connecting rod 607 is rotatably arranged near one end of the sliding frame 606 of the semicircular clamping protrusion 603, and the other end of the connecting rod 607 is rotatably connected to the sliding frame 606.

[0031] By adopting the above technical solution, the semicircular clamping protrusion 603 is turned over to drive the sliding frame 606 to move through the connecting rod 607.

[0032] The core bottom clamping assembly 7 includes a fixed frame 701, which is fixedly installed at the middle of the top end of the coring inner tube 5. A guide rod 702 is inserted through the fixed frame 701. A lifting plate 703 is fixedly sleeved on the outer wall of the guide rod 702. A No. 3 reset spring 707 is sleeved on the outer wall of the guide rod 702, and the two ends of the No. 3 reset spring 707 are respectively fixedly connected to the fixed frame 701 and the lifting plate 703. A lifting frame 708 is fixedly provided at the bottom end of the guide rod 702, and the lifting frame 708 is slidably connected to the coring inner tube 5. Two symmetrically distributed No. 1 connecting plates 704 are rotatably provided at both ends of the fixed frame 701, and a clamping plate 705 is rotatably provided between two adjacent No. 1 connecting plates 704. Two symmetrically distributed No. 2 connecting plates 706 are rotatably provided at both ends of the lifting plate 703, and the other end of the No. 2 connecting plate 706 is rotatably connected to the clamping plate 705, and clamping frames 710 are fixedly provided on opposite sides of the two clamping plates 705.

[0033] By adopting the above technical solution, the lifting plate 703 is raised and driven by the second connecting plate 706 to flip the clamping plate 705 and the clamping frame 710 to clamp and fix the bottom of the rock column.

[0034] The rapid coring assembly 8 includes twelve guide plates 801 distributed in a circular array, and the guide plates 801 are fixedly mounted on the built-in coring barrel 4. Two symmetrically distributed flip rods 802 are rotatably provided between two adjacent guide plates 801, and a connecting rod 805 is slidably provided between the flip rods 802. Six card plates 807 distributed in a circular array are rotatably provided on the top of the built-in coring barrel 4, and a synchronization rod 808 is rotatably provided between two adjacent flip rods 802 on the side away from the connecting rod 805, and the synchronization rod 808 is rotatably connected to the card plate 807.

[0035] By adopting the above technical solution, the connecting rod 805 is raised and drives the card plate 807 to turn synchronously through the turning rod 802 and the synchronization rod 808.

[0036] Two symmetrically distributed sliders 605 are fixed on both sides of the sliding frame 606, and a number of sliding rails 604 used in conjunction with the sliders 605 are fixed between the built-in coring tube 4 and the coring inner tube 5, and the sliders 605 are slidably connected to the sliding rails 604. A No. 1 return spring 608 is fixed on the middle part of one side of the sliding frame 606 close to the built-in coring tube 4, and the other end of the No. 1 return spring 608 is fixedly connected to the inner wall of the built-in coring tube 4.

[0037] By adopting the above technical solution, the sliding frame 606 slides under the guidance of the sliding rail 604 and the sliding block 605 .

[0038] The inner wall of the built-in coring barrel 4 is provided with a slide groove 401 for use with the lifting frame 708, and the slide groove 401 is provided with six slide grooves distributed in a circular array. A pulley 709 for use with the slide groove 401 is rotatably installed on the lifting frame 708, and the pulley 709 slides in the slide groove 401. The inner wall of the built-in coring barrel 4 is provided with six connecting grooves 402 distributed in a circular array on one side close to the slide groove 401, and the No. 2 built-in fixed block 601 is fixedly installed in the connecting groove 402. The bottom of the built-in coring barrel 4 is provided with two symmetrically distributed clamping grooves 403 for use with the clamping frame 710.

[0039] By adopting the above technical solution, the lifting frame 708 slides in the built-in coring barrel 4 through the pulley 709 and the slide groove 401.

[0040] Two symmetrically distributed fixing columns 806 are fixed on both sides of the top of the connecting rod 805, a horizontal groove 803 is opened on the flip rod 802 for use with the fixing column 806, and a vertical groove 804 is opened on the guide plate 801 for use with the fixing column 806. The two fixing columns 806 at the bottom slide in the horizontal groove 803 and the vertical groove 804.

[0041] By adopting the above technical solution, the connecting rod 805 is moved under the guidance of the horizontal groove 803 and the vertical groove 804 through the fixing column 806 .

[0042] Six connecting frames 612 distributed in a circular array are fixedly arranged on the inner wall of the built-in core-drilling barrel 4 near the top of the sliding frame 606, a plug 609 is inserted through the sliding frame 606 near the side of the sliding frame 606, a round block 610 is fixedly sleeved on the outer wall of the plug 609, a No. 2 reset spring 611 is sleeved on the outer wall of the plug 609, and both ends of the No. 2 reset spring 611 are respectively fixedly connected to the round block 610 and the sliding frame 606, and the bottom of the connecting rod 805 is inserted through the connecting frame 612.

[0043] By adopting the above technical solution, the second return spring 611 pushes the plug 609 to move through the round block 610.

[0044] A plurality of No. 1 built-in fixing blocks 404 distributed in a circular array are fixedly disposed on the inner wall of the built-in coring barrel 4 , and a guide wheel 405 is rotatably disposed between two adjacent No. 1 built-in fixing blocks 404 .

[0045] By adopting the above technical solution, the guide wheel 405 is rotatably installed in the built-in coring barrel 4 through the first built-in fixing block 404 .

[0046] A sampling method used by a deep geological sample sampling device comprises the following steps:

[0047] S1, the external coring barrel 2 rotates to drive the coring drill bit 3 to rotate synchronously, and the coring drill bit 3 drills into the rock and soil to take samples;

[0048] S2, the coring drill bit 3 rotates the sampled rock column into the coring inner tube 5 and moves under the guidance of the guide wheel 405 until the top clamping assembly 6 of the core, and the top of the rock column is clamped and fixed by the top clamping assembly 6 of the core. At this time, the coring drill bit 3 stops drilling after cutting off the rock column;

[0049] S3, when the rock column contacts the top clamping assembly 6 of the rock core, it continues to move upwards, driving the bottom clamping assembly 7 of the rock core to clamp and fix the bottom cutoff of the rock column, and the stability of the rock column during the coring process is ensured by clamping and fixing the top and bottom of the rock column;

[0050] S4. When it is necessary to remove the rock column in the coring inner tube 5, manually remove the external coring tube 2, the coring drill bit 3 and the internal coring tube 4 from the water diversion joint 1, and then use the quick coring assembly 8 to drive the top clamping assembly 6 to stop clamping and fixing the rock column, so that the rock column slides out of the coring inner tube 5 under the guidance of the guide wheel 405, avoiding the breakage of the rock column caused by knocking in the coring process and ensuring the integrity of the rock column.

[0051] Working principle: First, the rotating rod rotates through the water diversion joint 1 to drive the external coring barrel 2 to rotate, and the external coring barrel 2 drives the coring drill bit 3 to rotate synchronously. The coring drill bit 3 rotates in the rock and soil to drill and sample. During the drilling process of the coring drill bit 3, a rock column is drilled in the rock and soil. The rock column rotated by the coring drill bit 3 enters the coring inner barrel 5. The rock column moves under the guidance of the guide wheel 405 in the inner wall of the coring inner barrel 5. As the coring drill bit 3 drills, the top of the rock column contacts the lifting frame 708 and pushes the guide wheel 405. The rod 702 moves upward, the guide rod 702 drives the lifting plate 703 to rise synchronously and squeezes the No. 3 return spring 707. The lifting plate 703 rises and drives the two clamping plates 705 to turn over synchronously through the No. 2 connecting plate 706, the fixed frame 701 and the No. 1 connecting plate 704. The clamping plate 705 clamps and fixes the bottom of the rock column through the clamping frame 710. The rock column pushes the lifting plate 703 to move and contacts the semicircular clamping protrusion 603 and pushes the semicircular clamping protrusion 603. The semicircular clamping protrusion 603 is flipped, and the sliding frame 606 is driven to move under the guidance of the slide rail 604 through the connecting rod 607 and stretch the No. 1 return spring 608. The sliding frame 606 drives the plug 609 to move synchronously while moving. When the plug 609 coincides with the corresponding notch in the connecting rod 805 in the connecting frame 612, the No. 2 return spring 611 pushes the plug 609 into the corresponding notch in the connecting frame 612 through the round block 610. The notch inserted into the connection frame 612 limits the sliding frame 606, and the top of the rock column is clamped and fixed by the semicircular clamping protrusion 603, and the clamping and fixing assembly at the bottom of the rock core is limited. The plug 609 pushes the connection rod 805 to move upward during the insertion process, and the connection rod 805 drives the flip rod 802 to flip through the fixed column 806, the horizontal groove 803 and the vertical groove 804. The flip rod 802 drives the card plate 807 to flip synchronously through the synchronization rod 808;

[0052] When the rock column in the coring inner tube 5 needs to be taken out, the coring drill bit 3, the external coring tube 2 and the internal coring tube 4 are removed from the water diversion joint 1 in turn, and the card plate 807 is pressed downward in turn to flip the card plate 807 downward and reset. The card plate 807 flips and drives the connecting rod 805 to move downward through the synchronization rod 808, the flip rod 802 and the fixed column 806. The connecting rod 805 pushes the plug 609 to move downward and separate from the notch in the connecting frame 612. The sliding frame 606 is reset under the drive of the No. 1 reset spring 608. The sliding frame 606 drives the semicircular clamping protrusion 603 to flip and reset through the connecting rod 607 to stop clamping the top of the rock column. At this time, the rock column slides out of the coring inner tube 5 under its own gravity and the guiding action of the guide wheel 405, and the lifting plate 703 is pushed to move and reset by the No. 3 reset spring 707, so that the clamping frame 710 is separated from the rock column.

[0053] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A deep geological sample sampling device, comprising a water diversion joint (1), characterized in that: The lower thread of the water diversion joint (1) is connected to an internal coring barrel (4), the middle thread of the water diversion joint (1) is connected to an external coring barrel (2), a coring drill bit (3) is provided at the bottom of the external coring barrel (2), a coring inner barrel (5) is provided inside the internal coring barrel (4), a core top clamping assembly (6) is provided between the core inner barrel (5) and the internal coring barrel (4), a core bottom clamping assembly (7) is provided at the top of the core inner barrel (5), and a quick coring assembly (8) is provided on the internal coring barrel (4).

2. A deep geological sample sampling device as claimed in claim 1, characterized in that: The core top clamping assembly (6) includes twelve No. 2 built-in fixed blocks (601) distributed in an annular array, a fixed shaft (602) is fixedly provided between two adjacent No. 2 built-in fixed blocks (601), a semicircular clamping protrusion (603) is rotatably sleeved on the outer wall of the fixed shaft (602), six sliding frames (606) distributed in an annular array are slidably provided between the built-in coring tube (4) and the coring inner tube (5), a connecting rod (607) is rotatably provided near one end of the sliding frame (606) of the semicircular clamping protrusion (603), and the other end of the connecting rod (607) is rotatably connected to the sliding frame (606).

3. A deep geological sample sampling device as claimed in claim 1, characterized in that: The core bottom clamping assembly (7) comprises a fixed frame (701), the fixed frame (701) is fixedly mounted on the middle part of the top end of the coring inner tube (5), a guide rod (702) is inserted through the fixed frame (701), a lifting plate (703) is fixedly sleeved on the outer wall of the guide rod (702), a No. 3 return spring (707) is sleeved on the outer wall of the guide rod (702), and the two ends of the No. 3 return spring (707) are respectively fixedly connected to the fixed frame (701) and the lifting plate (703), and the bottom end of the guide rod (702) is fixedly provided with A lifting frame (708) is provided, and the lifting frame (708) is slidably connected to the core inner cylinder (5); two symmetrically distributed No. 1 connecting plates (704) are rotatably provided at both ends of the fixed frame (701); a clamping plate (705) is rotatably provided between two adjacent No. 1 connecting plates (704); two symmetrically distributed No. 2 connecting plates (706) are rotatably provided at both ends of the lifting plate (703); the other end of the No. 2 connecting plate (706) is rotatably connected to the clamping plate (705); and clamping frames (710) are fixedly provided on opposite sides of the two clamping plates (705).

4. A deep geological sample sampling device as claimed in claim 1, characterized in that: The rapid coring assembly (8) comprises twelve guide plates (801) distributed in an annular array, the guide plates (801) being fixedly mounted on the built-in coring barrel (4), two symmetrically distributed flipping rods (802) being rotatably arranged between two adjacent guide plates (801), a connecting rod (805) being slidably arranged between the flipping rods (802), six card plates (807) being rotatably arranged on the top of the built-in coring barrel (4), a synchronization rod (808) being rotatably arranged on the side away from the connecting rod (805) between two adjacent flipping rods (802), and the synchronization rod (808) being rotatably connected to the card plate (807).

5. A deep geological sample sampling device as claimed in claim 2, characterized in that: Two symmetrically distributed sliders (605) are fixedly provided on both sides of the sliding frame (606); a plurality of slide rails 604 for use with the sliders (605) are fixedly provided between the built-in coring barrel (4) and the coring inner barrel (5); and the sliders 605 are slidably connected to the slide rails 604; a No. 1 return spring (608) is fixedly provided in the middle of one side of the sliding frame (606) close to the built-in coring barrel (4); and the other end of the No. 1 return spring (608) is fixedly connected to the inner wall of the built-in coring barrel (4).

6. A deep geological sample sampling device as claimed in claim 1, characterized in that: The inner wall of the built-in coring barrel (4) is provided with a slide groove (401) for use with the lifting frame (708), and the slide groove (401) is provided with six slide grooves distributed in a circular array. A pulley (709) for use with the slide groove (401) is rotatably installed on the lifting frame (708), and the pulley (709) slides in the slide groove (401). The inner wall of the built-in coring barrel (4) is provided with six connecting grooves (402) distributed in a circular array on one side close to the slide groove (401), and the No. 2 built-in fixed block (601) is fixedly installed in the connecting groove (402). The bottom of the built-in coring barrel (4) is provided with two symmetrically distributed clamping grooves (403) for use with the clamping frame (710).

7. A deep geological sample sampling device as claimed in claim 4, characterized in that: Two symmetrically distributed fixing posts (806) are fixedly provided on both sides of the top of the connecting rod (805); a transverse groove (803) for use with the fixing posts (806) is provided on the flip rod (802); a vertical groove (804) for use with the fixing posts (806) is provided on the guide plate (801); and the two fixing posts (806) at the bottom slide in the transverse groove (803) and the vertical groove (804).

8. A deep geological sample sampling device as claimed in claim 1, characterized in that: Six connecting frames (612) distributed in a circular array are fixedly provided on the inner wall of the built-in coring barrel (4) near the top of the sliding frame (606); a plug (609) is inserted through the side of the sliding frame (606) near the sliding frame (606); a round block (610) is fixedly sleeved on the outer wall of the plug (609); a No. 2 return spring (611) is sleeved on the outer wall of the plug (609), and the two ends of the No. 2 return spring (611) are respectively fixedly connected to the round block (610) and the sliding frame (606), and the bottom of the connecting rod (805) is inserted through the connecting frame (612).

9. A deep geological sample sampling device as claimed in claim 1, characterized in that: The inner wall of the built-in coring barrel (4) is fixedly provided with a plurality of number one built-in fixing blocks (404) distributed in a circular array, and a guide wheel (405) is rotatably provided between two adjacent number one built-in fixing blocks (404).

10. The sampling method used in the deep geological sample sampling device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, the external coring barrel (2) rotates to drive the coring drill bit (3) to rotate synchronously, and the coring drill bit (3) drills into the rock and soil to take samples; S2, the coring drill bit (3) rotates the sampled rock column into the coring inner tube (5) and moves under the guidance of the guide wheel (405) until it reaches the top clamping assembly (6) of the rock core, and the top of the rock column is clamped and fixed by the top clamping assembly (6). At this time, the coring drill bit (3) cuts off the rock column and stops drilling; S3, when the rock column contacts the top clamping assembly (6) of the rock core, it continues to move upwards, driving the bottom clamping assembly (7) of the rock core to clamp and fix the cut-off part at the bottom of the rock column, thereby ensuring the stability of the rock column during the coring ascending process by clamping and fixing the top and bottom of the rock column; S4. When it is necessary to remove the rock column in the coring inner tube (5), the external coring tube (2), the coring drill bit (3) and the internal coring tube (4) are manually removed from the water diversion joint (1), and then the quick coring assembly (8) drives the top clamping assembly (6) of the rock column to stop clamping and fixing the rock column, so that the rock column slides out of the coring inner tube (5) under the guidance of the guide wheel (405), thereby avoiding the fracture of the rock column caused by knocking during the coring process and ensuring the integrity of the rock column.

Images