Exploration positioning coring device and method suitable for sandstone type uranium mine

By introducing casing, spiral blocks, spiral grooves and pipe roll structures into the sandstone uranium exploration and positioning core collection device, the collapse problem caused by instability of the hole wall is solved, the core collection efficiency and accuracy are improved, and the core collection is ensured. The integrity of the core.

CN119288365APending Publication Date: 2025-01-10XINJIANG UNIVERSITY
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Patent Information

Application Number
CN202411577171.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-01-10

AI Technical Summary

Technical Problem

Traditional sandstone uranium exploration positioning core collection devices can easily lead to collapse accidents when the hole wall is unstable and the geological conditions are fragile, affecting the core collection efficiency and accuracy.

Method used

A exploration positioning and core extraction device including a casing, a spiral block and a spiral groove, a first tube roll and a second tube roll are designed. The casing is moved by a cylinder driving the square rod and the connecting block, and the motor rotates the drilling block to break the rock. , and use Archimedes helical wire and spring mechanism to stabilize the core extraction process to ensure core integrity and device reliability.

Benefits of technology

It effectively avoids collapse accidents, improves core efficiency and accuracy, ensures core integrity, and reduces the cost of dealing with collapse accidents.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an exploration positioning coring device and method suitable for sandstone type uranium deposit, and relates to the field of exploration, the device comprises a drilling machine main body, a tower is arranged above the drilling machine main body, a steel cable roller is arranged on one side of the tower, and the outer wall of the steel cable roller is rotatably connected with a steel cable; a drilling machine drilling body is arranged on one side of the drilling machine body, a drilling machine rotating sleeve is arranged on the inner wall of the drilling machine drilling body, a square rod is arranged on the inner wall of the drilling machine rotating sleeve, a connecting block is fixedly connected to one end of the square rod, and a driving cover is fixedly connected to the lower portion of the connecting block. Through the sleeve, when the sandstone type uranium mine needs to be explored, positioned and cored, the problems that collapse accidents are caused by unstable hole walls in the process of exploring, positioning and coring the sandstone type uranium mine, a drill bit is buried in the sandstone type uranium mine, and the coring process is hindered are solved, the efficiency and the accuracy of exploring, positioning and coring the sandstone type uranium mine are improved, and the production cost is reduced. And the collapse accident treatment cost is also reduced.
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Description

Technical Field

[0001] The invention relates to the field of exploration, and in particular to an exploration positioning and coring device and method suitable for sandstone-type uranium mines. Background Art

[0002] The exploration, positioning and coring device for sandstone-type uranium mines is composed of a drilling device, a coring device and other possible components. The exploration, positioning and coring device for sandstone-type uranium mines drives the drill bit to rotate through a driving motor, and uses a feed system to control the depth of the drill bit, gradually breaking the rock and advancing downward. After reaching the predetermined depth, the drill bit rises and installs a core tube. After exploration, positioning and coring of sandstone-type uranium mines, the core tube and the core are lifted to the ground together through a lifting mechanism to complete a coring operation.

[0003] However, the traditional exploration and positioning coring device for sandstone-type uranium mines is unstable during the exploration and positioning coring process of sandstone-type uranium mines. The physical and mechanical properties of sandstone-type uranium mines are relatively fragile, and they are easily broken when subjected to external forces, causing collapse accidents, burying the drill bit in the sandstone-type uranium mine, and hindering the coring process, affecting the efficiency and accuracy of exploration and positioning coring.

[0004] Therefore, we proposed an exploration positioning and coring device and method suitable for sandstone-type uranium deposits. Summary of the invention

[0005] The invention provides an exploration positioning and coring device and method suitable for sandstone-type uranium mines.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an exploration positioning and coring device suitable for sandstone-type uranium mines, comprising a drilling rig main body, a tower is arranged above the drilling rig main body, a steel cable roller is arranged on one side of the tower, a steel cable is rotatably connected to the outer wall of the steel cable roller, a drilling rig drilling body is arranged on one side of the drilling rig main body, a drilling rig rotating sleeve is arranged on the inner wall of the drilling rig drilling body, a square rod is arranged on the inner wall of the drilling rig rotating sleeve, one end of the square rod is fixedly connected to a connecting block, an active cover is fixedly connected to the lower part of the connecting block, a cushion block is movably connected to the lower part of the active cover, and a core for storing rock is movably connected to the lower part of the cushion block. The core tube assembly comprises a built-in circular plate fixedly connected to the outer wall of the cushion block, the outer wall of the upper part of the built-in circular plate is threadedly connected to the inner wall of the active cover, a casing is provided on the outer wall of the lower part of the built-in circular plate, a connecting ring is provided below the built-in circular plate, a drill block ring is fixedly connected below the connecting ring, and a plurality of drill blocks are evenly provided on the inner wall of the drill block ring; the casing is provided to avoid the problem of collapse accidents caused by unstable hole wall during the process of exploration, positioning and coring of sandstone-type uranium mines, which causes the drill bit to be buried in the sandstone-type uranium mine and hinders the coring process, thereby improving the efficiency and accuracy of exploration, positioning and coring of sandstone-type uranium mines and reducing the cost of handling collapse accidents.

[0007] Preferably, the inner wall of the connecting ring is movably connected with a spiral ring, the inner wall of the spiral ring is provided with a spiral groove, a plurality of drill blocks are fixedly connected with a spiral clamping block on the top, the plurality of spiral clamping blocks are slidably connected to the inner wall of the spiral groove, the inner wall of the drill block ring is evenly provided with a plurality of sliding clamping block grooves, both ends of the drill block are provided with sliding clamping blocks, the sliding clamping blocks are slidably connected to the inner wall of the sliding clamping block groove; by providing the spiral clamping block and the spiral groove, the problem of hole wall collapse caused by unstable geological conditions, which affects the deep core sampling after exploration, is avoided, thereby improving the efficiency of exploration.

[0008] Preferably, the core tube assembly includes a core tube base movably connected to the bottom of the cushion block, an arc groove is formed at the lower end of the core tube base, an arc block is movably connected to the inner wall of the arc groove, a first tube roll is fixedly connected to the lower end of the drilling rig rotating sleeve, a second tube roll is clamped and connected to one side of the first tube roll, the lower ends of the first tube roll and the second tube roll are both fixedly connected to bottle mouth half rings, and the inner walls of the two bottle mouth half rings are threadedly connected to the inner wall of the locking ring; by providing the first tube roll and the second tube roll, the problem of rock-type uranium ore core being damaged or scattered during the pouring process is avoided, the integrity of the rock-type uranium ore core when it is taken out is ensured, and the efficiency and accuracy of exploration are improved.

[0009] Preferably, a first clamping block is fixedly connected to one side of the drilling rig body, a second clamping block is provided on one side of the first clamping block, a clamping plate is provided on one side of the second clamping block, a plurality of second springs are fixedly connected between the second clamping block and the clamping plate, and a bolt is threadedly connected to the inner wall of the second clamping block; by providing the second clamping block, a layer-by-layer removal method is adopted to ensure that the core is safely removed under minimal stress, thereby avoiding damage to the core.

[0010] Preferably, a gear ring is fixedly connected to the upper end of the connecting ring, a special-shaped gear is fixedly connected to the top of the spiral ring, a plurality of special-shaped gear grooves are opened on the outer wall of the special-shaped gear, and a plurality of special-shaped gear grooves are provided with special-shaped tooth blocks on the inner walls, and the plurality of special-shaped tooth blocks are hinged to the outer wall of the spiral ring; by providing the special-shaped gear grooves, the entire coring process is balanced and stabilized through the compression and rebound mechanism, thereby reducing the impact of the spiral block on the edge of the spiral ring when the special-shaped gear rotates counterclockwise, thereby affecting the normal operation of the device.

[0011] Preferably, a first spring is fixedly connected between the special-shaped gear groove and the special-shaped tooth block; by providing the first spring, it is avoided that the special-shaped gear does not return to its original position after rotation, and when the sandstone-type uranium ore core stored in the core tube needs to be taken out, the multiple drill blocks cannot be retracted, and the casing cannot be installed in the drill pit, thereby improving the reliability of the device.

[0012] Preferably, a smooth rubber plate is provided between the built-in circular plate and the casing, and the smooth rubber plate is fixedly connected to the built-in circular plate; by providing the smooth rubber plate, when the sandstone-type uranium ore is being explored, positioned and cored, the smooth rubber plate is located between the built-in circular plate and the casing to prevent the vibration during the drilling process from causing the sandstone-type uranium ore stored in the core tube to be vibrated and broken, thereby affecting the accuracy of the exploration, positioning and coring of the sandstone-type uranium ore.

[0013] Preferably, a connecting bolt is fixedly connected between the two square rods; through the provided connecting bolt, multiple square rods are connected before positioning and coring in sandstone-type uranium ore exploration, thereby extending the depth of the drilling hole and improving the adaptability of the device.

[0014] Preferably, the maximum distance from the drill block to the center of the special-shaped gear is greater than the maximum distance from the casing to the center of the special-shaped gear. When the drill block is in the retracted state, the maximum distance from the drill block to the center is less than the minimum distance from the casing to the center of the special-shaped gear. This avoids the problem of the drill block and the casing getting stuck, and the drill block being taken out together with the casing when positioning and coring in sandstone-type uranium mine exploration, thereby improving the reliability of the device.

[0015] A method for using an exploration positioning coring device suitable for sandstone-type uranium ore comprises the following steps:

[0016] The first step: when exploring and locating sandstone-type uranium deposits and planning to carry out coring operations, drill holes at pre-determined locations, and start coring when the holes are drilled to a suitable location. First, clamp and connect the first tube roll with the second tube roll, push the arc block, and insert the arc block on the first tube roll into the arc groove in the base of the core tube. Then, thread and tighten the locking ring with the bottle mouth half ring, and then put it into the built-in circular plate, and put the cushion block, and then put the casing on the outside of the smooth rubber plate, match the active cover with the thread on the built-in circular plate, and then install the square rod on the active cover, multiple square rods are installed together, and the top of the square rod is installed with the steel cable, open the drilling rig body, and the drilling rig body drives the drilling rig body to work. The drilling rig body drives the square rod to move downward through multiple cylinders, and the square rod moves downward to drive the connecting block to move downward. The connecting block moves downward to push the casing to move downward, and the connecting block also drives the built-in circular plate to move downward. The built-in circular plate drives the drill block ring to move downward, and the drill block ring drives the clamping plate to move downward;

[0017] The second step: when the preset core-taking depth is reached, the motor in the drilling body of the drilling rig drives the square rod to rotate counterclockwise, the rotation of the square rod drives the connecting block to rotate, the rotation of the connecting block drives the built-in circular plate to rotate, the rotation of the built-in circular plate drives the connecting ring to rotate, the rotation of the connecting ring drives the drill block ring to rotate, the rotation of the drill block ring drives multiple drill blocks to rotate, the rotation of the clamping plate drives the gear ring to rotate, the gear ring rotates, the teeth on the gear ring mesh with the special-shaped tooth block on the special-shaped gear, when colliding counterclockwise, the teeth on the gear ring push the special-shaped tooth block on the special-shaped gear to rotate toward the center of the special-shaped gear, and compress the first spring, after the teeth on the gear ring mesh with the special-shaped tooth block on the special-shaped gear, the first spring compresses and rebounds to push the special-shaped tooth block back to its original position, the gear ring rotates to break the sandstone-type uranium ore, and collect the core into the core tube assembly;

[0018] The third step; when the collection is full, the motor drives the square rod to rotate clockwise, the rotation of the square rod drives the connecting block to rotate, the rotation of the connecting block drives the built-in circular plate to rotate, the rotation of the built-in circular plate drives the connecting ring to rotate, the rotation of the connecting ring drives the drill block ring to rotate, the rotation of the drill block ring drives multiple drill blocks to rotate, the rotation of the clamping plate drives the gear ring to rotate, the gear ring rotates, the teeth on the gear ring mesh with the special-shaped tooth block on the special-shaped gear, the gear ring drives the special-shaped gear to rotate clockwise, the clockwise rotation of the special-shaped gear drives the spiral groove to rotate clockwise, the spiral groove rotates clockwise, and multiple The spiral block on the drill block slides in the spiral groove, which is an Archimedean spiral. The drill block moves downward along the direction of the sliding block groove. When the drill block moves to the limit position, the cable roller is rotated to lift the cable upward. The cable moves upward to drive the square rod upward. The square rod moves upward to drive the connecting block upward. The connecting block drives the built-in circular plate upward. The built-in circular plate drives the drill block ring upward. The drill block ring drives the clamping plate upward. The casing is not subjected to the thrust of the active cover and remains in the borehole to prevent the hole wall from collapsing due to unstable geological conditions.

[0019] Step 4: Rise to a suitable height and tighten the bolt. The bolt pushes the second clamping block. The second clamping block pushes the clamping plate toward the connecting bolt. The clamping plate and the connecting bolt clamp the square rod. Disassemble the connecting bolt, disconnect the upper square rod and the steel cable, and then connect the steel cable to the lower square rod, and then pull upward, repeating this process until the square rod connected to the connecting block is pulled up by the steel cable. Disassemble the square rod, unscrew the active cover, take out the cushion block, slowly pour out the core tube containing the core, place the core tube assembly flat in the core box, unscrew the bottle mouth half ring, push the first tube roll forward, completely separate the second tube roll from the first tube roll, rotate the core tube base, rotate the core into the core groove, and obtain the core.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention provides a casing. When it is necessary to locate and coring sandstone-type uranium ore, the drilling body of the drilling rig drives the square rod to move downward through multiple cylinders. The square rod moves downward to drive the connecting block to move downward. The connecting block moves downward to push the casing downward. The connecting block also drives the built-in circular plate to move downward. The built-in circular plate drives the drill block ring to move downward. The drill block ring drives the clamping plate to move downward to the preset core-taking depth. The motor in the drilling body of the drilling rig drives the square rod to rotate counterclockwise. The rotation of the square rod drives the connecting block to rotate. The connecting block rotates. The rotation of the gear ring drives the inner circular plate to rotate, the rotation of the inner circular plate drives the connecting ring to rotate, the rotation of the connecting ring drives the drill block ring to rotate, the rotation of the drill block ring drives multiple drill blocks to rotate, the gear ring rotates to break up the sandstone type uranium ore, and collect the core into the core tube assembly, avoiding the collapse accident caused by the instability of the hole wall during the exploration, positioning and coring of sandstone type uranium ore, causing the drill bit to be buried in the sandstone type uranium ore and the coring process to be hindered, thereby improving the efficiency and accuracy of the exploration, positioning and coring of sandstone type uranium ore, and reducing the cost of handling collapse accidents.

[0022] 2. Through the provided spiral clamp and spiral groove, when the sandstone-type uranium ore core stored in the core tube needs to be taken out, the square rod rotates clockwise, the rotation of the square rod drives the connection block to rotate, the rotation of the connection block drives the internal circular plate to rotate, the rotation of the internal circular plate drives the connection ring to rotate, the rotation of the connection ring drives the drill block ring to rotate, the rotation of the drill block ring drives multiple drill blocks to rotate, the spiral groove rotates clockwise, the spiral clamps on multiple drill blocks slide in the spiral groove, the spiral groove is an Archimedean spiral, and the drill block moves downward along the direction of the sliding clamp groove. When the drill block moves to the limit position, the steel cable roller is rotated to lift the steel cable upward out of the core tube assembly. The casing remains in the borehole because it is not subjected to the thrust of the active cover, thereby avoiding the problem of hole wall collapse due to unstable geological conditions, affecting the in-depth core extraction after exploration, and improving the efficiency of exploration.

[0023] 3. By setting the first tube roll and the second tube roll, when it is necessary to take out the sandstone-type uranium ore core stored in the core tube, the core tube is raised to a suitable height, the square rod is removed, the active cover is unscrewed, the cushion block is taken out, the core tube containing the core is slowly poured out, the core tube assembly is placed flat in the core box, the bottle mouth half ring is unscrewed, the first tube roll is pushed forward, the second tube roll is completely separated from the first tube roll, the core tube base is rotated, and the core is rotated and put into the core groove to obtain the core, thereby avoiding the problem of the rock-type uranium ore core being damaged or scattered during the pouring process, ensuring the integrity of the rock-type uranium ore core when it is taken out, and improving the efficiency and accuracy of exploration. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall structure of the drilling rig of the present invention;

[0026] Figure 3 This is a cross-sectional view of the drilling device structure of the present invention;

[0027] Figure 4 It is a cross-sectional view of the core tube assembly structure of the present invention;

[0028] Figure 5 For the present invention Figure 2 Enlarged view of point A in the middle;

[0029] Figure 6 For the present invention Figure 3 Enlarged view of point B in the middle;

[0030] Figure 7 For the present invention Figure 3 Enlarged view of point C in the middle.

[0031] In the figure: 1. Drilling rig body; 2. Drilling rig rotating sleeve; 3. Square rod; 4. Casing; 5. Connecting block; 6. Spacer; 7. Special-shaped gear; 8. Special-shaped gear block; 9. First spring; 10. Drill block; 11. Spiral groove; 12. Spiral clamping block; 13. Smooth rubber sheet; 14. Built-in circular plate; 15. Active cover; 16. Drill block ring; 17. Gear ring; 18. Clamping plate; 19. Core tube base; 20. Arc block; 21 1. The first tube roll; 22. The second tube roll; 23. The steel cable roller; 24. The bottle mouth half ring; 25. The drilling body of the drilling rig; 26. The connecting ring; 27. The spiral ring; 28. The special-shaped gear groove; 29. ​​The sliding block groove; 30. The sliding block; 31. The arc groove; 32. The locking ring; 33. The first clamping block; 34. The second clamping block; 35. The second spring; 36. The tower; 37. The bolt; 38. The connecting bolt; 39. The steel cable. DETAILED DESCRIPTION

[0032] 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.

[0033] Example 1

[0034] See also Figure 1-7In the figure, an exploration positioning and coring device suitable for sandstone-type uranium ore includes a drilling rig body 1, a tower 36 is arranged above the drilling rig body 1, a steel cable roller 23 is arranged on one side of the tower 36, a steel cable 39 is rotatably connected to the outer wall of the steel cable roller 23, a drilling rig drilling body 25 is arranged on one side of the drilling rig body 1, a drilling rig rotating sleeve 2 is arranged on the inner wall of the drilling rig rotating sleeve 2, a square rod 3 is arranged on the inner wall of the drilling rig rotating sleeve 2, one end of the square rod 3 is fixedly connected to a connecting block 5, and the lower part of the connecting block 5 is fixedly connected to the connecting block 5. An active cover 15 is connected, a cushion block 6 is movably connected below the active cover 15, a core tube assembly for storing cores is movably connected below the cushion block 6, an outer wall of the cushion block 6 is fixedly connected to an inner wall of the inner circular plate 14, an outer wall of the upper part of the inner circular plate 14 is threadedly connected to the inner wall of the active cover 15, a casing 4 is provided on the outer wall of the lower part of the inner circular plate 14, a connecting ring 26 is provided below the inner circular plate 14, a drill block ring 16 is fixedly connected below the connecting ring 26, and a plurality of drill blocks 10 are evenly provided on the inner wall of the drill block ring 16.

[0035] In this embodiment, through the provided casing 4, when it is necessary to locate and coring the sandstone-type uranium ore, the drilling body 25 of the drilling rig drives the square rod 3 to move downward through multiple cylinders, the square rod 3 moves downward to drive the connecting block 5 to move downward, the connecting block 5 moves downward to push the casing 4 to move downward, the connecting block 5 also drives the built-in circular plate 14 to move downward, the built-in circular plate 14 drives the drill block ring 16 to move downward, the drill block ring 16 drives the clamping plate 18 to move downward to the preset core taking depth, the motor in the drilling body 25 of the drilling rig drives the square rod 3 to rotate counterclockwise, the rotation of the square rod 3 drives the connecting block 5 to rotate The rotation of the connecting block 5 drives the internal circular plate 14 to rotate, the rotation of the internal circular plate 14 drives the connecting ring 26 to rotate, the rotation of the connecting ring 26 drives the drill block ring 16 to rotate, the rotation of the drill block ring 16 drives the multiple drill blocks 10 to rotate, the gear ring 17 rotates to break up the sandstone type uranium ore, and collect the core into the core tube assembly, thereby avoiding the collapse accident caused by the instability of the hole wall during the exploration, positioning and coring of sandstone type uranium ore, causing the drill bit to be buried in the sandstone type uranium ore and the coring process to be hindered, thereby improving the efficiency and accuracy of the exploration, positioning and coring of sandstone type uranium ore, and reducing the cost of handling collapse accidents.

[0036] See also Figure 3 and Figure 7 In the figure, the inner wall of the connecting ring 26 is movably connected with a spiral ring 27, and the inner wall of the spiral ring 27 is provided with a spiral groove 11. A plurality of drill blocks 10 are fixedly connected with spiral blocks 12 on the top, and the plurality of spiral blocks 12 are slidably connected to the inner wall of the spiral groove 11. A plurality of sliding block grooves 29 are evenly provided on the inner wall of the drill block ring 16. Sliding blocks 30 are provided at both ends of the drill block 10, and the sliding blocks 30 are slidably connected to the inner wall of the sliding block groove 29.

[0037] In this embodiment, by means of the spiral block 12 and the spiral groove 11, when it is necessary to take out the sandstone-type uranium ore core stored in the core tube, the square rod 3 rotates clockwise, the rotation of the square rod 3 drives the connecting block 5 to rotate, the rotation of the connecting block 5 drives the internal circular plate 14 to rotate, the rotation of the internal circular plate 14 drives the connecting ring 26 to rotate, the rotation of the connecting ring 26 drives the drill block ring 16 to rotate, the rotation of the drill block ring 16 drives the plurality of drill blocks 10 to rotate, the spiral groove 11 rotates clockwise, the spiral blocks 12 on the plurality of drill blocks 10 slide in the spiral groove 11, the spiral groove 11 is an Archimedean spiral, and the drill block 10 moves downward along the direction of the sliding block groove 29, when the drill block 10 moves to the limit position, the steel cable roller 23 is rotated to lift the steel cable 39 upward out of the core tube assembly, the casing 4 is not subjected to the thrust of the active cover 15, and remains in the borehole, thereby avoiding the problem of the collapse of the borehole wall due to unstable geological conditions, which affects the problem of taking the core in depth after exploration, and improving the efficiency of exploration.

[0038] Working principle: When exploring and locating sandstone-type uranium deposits and planning to carry out coring operations, drill holes at pre-determined locations, and start coring when the holes are drilled to the appropriate locations. First, the first tube roll 21 and the second tube roll 22 are clamped and connected, and the arc block 20 is pushed to insert the arc block 20 on the first tube roll 21 into the arc groove 31 in the core tube base 19. Then, the locking ring 32 is threadedly connected and tightened with the bottle mouth half ring 24, and then it is placed in the built-in circular plate 14, and the cushion block 6 is placed, and then the sleeve 4 is placed on the outside of the smooth rubber plate 13, and the active cover 15 is connected with the inner circular plate 14. The threads are matched, and then the square rod 3 is installed on the active cover 15. Multiple square rods 3 are installed together, and the top of the square rod 3 is installed together with the steel cable 39. The drilling rig body 1 is opened, and the drilling rig body 1 drives the drilling rig body 25 to work. The drilling rig body 25 drives the square rod 3 to move downward through multiple cylinders. The square rod 3 moves downward and drives the connecting block 5 to move downward. The connecting block 5 moves downward and pushes the casing 4 to move downward. The connecting block 5 also drives the built-in circular plate 14 to move downward. The built-in circular plate 14 drives the drill block ring 16 to move downward, and the drill block ring 16 drives the clamping plate 18 to move downward.

[0039] When the preset core-taking depth is reached, the motor in the drilling body 25 of the drilling rig drives the square rod 3 to rotate counterclockwise, and the rotation of the square rod 3 drives the connecting block 5 to rotate, and the rotation of the connecting block 5 drives the built-in circular plate 14 to rotate, and the rotation of the built-in circular plate 14 drives the connecting ring 26 to rotate, and the rotation of the connecting ring 26 drives the drill block ring 16 to rotate, and the rotation of the drill block ring 16 drives the multiple drill blocks 10 to rotate, and the clamping plate 18 rotates to drive the gear ring 17 to rotate, and the gear ring 17 rotates, and the teeth on the gear ring 17 mesh with the special-shaped tooth block 8 on the special-shaped gear 7. When colliding counterclockwise, the teeth on the gear ring 17 push the special-shaped tooth block 8 on the special-shaped gear 7 to rotate toward the center of the special-shaped gear 7 and compress the first spring 9. After the teeth on the gear ring 17 mesh with the special-shaped tooth block 8 on the special-shaped gear 7, the first spring 9 compresses and rebounds to push the special-shaped tooth block 8 back to its original position, and the gear ring 17 rotates to break the sandstone-type uranium ore, and collect the core into the core tube assembly;

[0040] When the collection is full, the motor drives the square rod 3 to rotate clockwise, the rotation of the square rod 3 drives the connecting block 5 to rotate, the rotation of the connecting block 5 drives the built-in circular plate 14 to rotate, the rotation of the built-in circular plate 14 drives the connecting ring 26 to rotate, the rotation of the connecting ring 26 drives the drill block ring 16 to rotate, the rotation of the drill block ring 16 drives multiple drill blocks 10 to rotate, the rotation of the clamping plate 18 drives the gear ring 17 to rotate, the gear ring 17 rotates, the teeth on the gear ring 17 engage with the special-shaped tooth block 8 on the special-shaped gear 7, the gear ring 17 drives the special-shaped gear 7 to rotate clockwise, the clockwise rotation of the special-shaped gear 7 drives the spiral groove 11 to rotate clockwise, the spiral groove 11 rotates clockwise, and multiple drill blocks The spiral block 12 on 10 slides in the spiral groove 11, and the spiral groove 11 is an Archimedean spiral line, so the drill block 10 moves downward along the direction of the sliding block groove 29. When the drill block 10 moves to the limit position, the steel cable roller 23 is rotated to lift the steel cable 39 upward, and the steel cable 39 moves upward to drive the square rod 3 to move upward, and the square rod 3 moves upward to drive the connecting block 5 to move upward, and the connecting block 5 drives the built-in circular plate 14 to move upward, and the built-in circular plate 14 drives the drill block ring 16 to move upward, and the drill block ring 16 drives the clamping plate 18 to move upward. The casing 4 is not subjected to the thrust of the active cover 15 and remains in the borehole to prevent the hole wall from collapsing due to unstable geological conditions;

[0041] Rise to a suitable height, tighten the bolt 37, the bolt 37 pushes the second clamping block 34, the second clamping block 34 pushes the clamping plate 18 close to the connecting bolt 38, the clamping plate 18 and the connecting bolt 38 clamp the square rod 3, disassemble the connecting bolt 38, disconnect the upper square rod 3 and the steel cable 39, then connect the steel cable 39 with the lower square rod 3, and then pull upward, and repeat this process until the square rod 3 connected to the connecting block 5 is pulled up by the steel cable 39, remove the square rod 3, unscrew the active cover 15, take out the cushion block 6, slowly pour out the core tube containing the core, place the core tube assembly flat in the core box, unscrew the bottle mouth half ring 24, push the first tube roll 21 forward, separate the second tube roll 22 from the first tube roll 21 completely, rotate the core tube base 19, rotate the core into the core groove, and obtain the core.

[0042] Example 2

[0043] See also Figure 4 The present embodiment further illustrates Example 1. In the figure, the core tube assembly includes a core tube base 19 movably connected to the bottom of the cushion block 6. An arc groove 31 is provided at the lower end of the core tube base 19. The inner wall of the arc groove 31 is movably connected to the arc block 20. The lower end of the drilling rig rotary sleeve 2 is fixedly connected to the first pipe roll 21. One side of the first pipe roll 21 is clamped and connected to the second pipe roll 22. The lower ends of the first pipe roll 21 and the second pipe roll 22 are fixedly connected to the bottle mouth half ring 24. The inner walls of the two bottle mouth half rings 24 are threadedly connected to the inner wall of the locking ring 32.

[0044] In this embodiment: by setting the first tube roll 21 and the second tube roll 22, when it is necessary to take out the sandstone-type uranium ore core stored in the core tube, the core tube is raised to a suitable height, the square rod 3 is removed, the active cover 15 is unscrewed, the cushion block 6 is taken out, the core tube containing the core is slowly poured out, the core tube assembly is placed flat in the core box, the bottle mouth half ring 24 is unscrewed, the first tube roll 21 is pushed forward, the second tube roll 22 is completely separated from the first tube roll 21, the core tube base 19 is rotated, and the core is rotated and placed into the core groove to obtain the core, thereby avoiding the problem of the rock-type uranium ore core being damaged or scattered during the pouring process, ensuring the integrity of the rock-type uranium ore core when it is taken out, and improving the efficiency and accuracy of exploration.

[0045] See also Figure 2 and Figure 5 In the figure, a first clamping block 33 is fixedly connected to one side of the drilling rig body 1, a second clamping block 34 is provided on one side of the first clamping block 33, a clamping plate 18 is provided on one side of the second clamping block 34, a plurality of second springs 35 are fixedly connected between the second clamping block 34 and the clamping plate 18, and a bolt 37 is threadedly connected to the inner wall of the second clamping block 34.

[0046] In this embodiment: by setting the second clamping block 34, when it is necessary to take out the sandstone-type uranium ore core stored in the core tube, it is raised to a suitable height, and the bolt 37 is tightened. The bolt 37 pushes the second clamping block 34, and the second clamping block 34 pushes the clamping plate 18 to approach the connecting bolt 38. The clamping plate 18 and the connecting bolt 38 clamp the square rod 3, and the connecting bolt 38 is disassembled. The upper square rod 3 and the steel cable 39 are disconnected, and then the steel cable 39 is connected to the lower square rod 3, and then pulled upward, and this is repeated until the square rod 3 connected to the connecting block 5 is pulled up by the steel cable 39, the square rod 3 is removed, the active cover 15 is unscrewed, and the cushion block 6 is taken out. The core is taken out layer by layer to ensure that it is safely taken out under the condition of minimum stress, thereby avoiding damage to the core.

[0047] See also Figure 3 and Figure 6 In the figure, the upper end of the connecting ring 26 is fixedly connected to the gear ring 17, and the upper part of the spiral ring 27 is fixedly connected to the special-shaped gear 7. The outer wall of the special-shaped gear 7 is provided with a plurality of special-shaped gear grooves 28, and the inner walls of the plurality of special-shaped gear grooves 28 are all provided with special-shaped tooth blocks 8, and the plurality of special-shaped tooth blocks 8 are all hinged to the outer wall of the spiral ring 27.

[0048] In this embodiment, by providing the special-shaped gear groove 28, when performing positioning and coring in sandstone-type uranium ore exploration, the teeth on the gear ring 17 mesh with the special-shaped tooth block 8 on the special-shaped gear 7. When colliding counterclockwise, the teeth on the gear ring 17 push the special-shaped tooth block 8 on the special-shaped gear 7 to rotate toward the center of the special-shaped gear 7 and compress the first spring 9. After the teeth on the gear ring 17 mesh with the special-shaped tooth block 8 on the special-shaped gear 7, the first spring 9 compresses and rebounds to push the special-shaped tooth block 8 back to its original position; the teeth on the gear ring 17 The teeth are meshed with the special-shaped tooth block 8 on the special-shaped gear 7, and the gear ring 17 drives the special-shaped gear 7 to rotate clockwise. The clockwise rotation of the special-shaped gear 7 drives the spiral groove 11 to rotate clockwise. The spiral groove 11 rotates clockwise, and the spiral clamping blocks 12 on the multiple drill blocks 10 slide in the spiral groove 11, so that the drill blocks 10 are retracted. The compression and rebound mechanism is used to balance and stabilize the entire coring process, reducing the impact of the spiral clamping block 12 on the edge of the spiral ring 27 when the special-shaped gear 7 rotates counterclockwise, which affects the normal operation of the device.

[0049] See also Figure 3 and Figure 6 In the figure, a first spring 9 is fixedly connected between the special-shaped gear groove 28 and the special-shaped tooth block 8.

[0050] In this embodiment: by setting the first spring 9, when colliding counterclockwise, the teeth on the gear ring 17 push the special-shaped tooth block 8 on the special-shaped gear 7 to rotate toward the center of the special-shaped gear 7 and compress the first spring 9. After the teeth on the gear ring 17 are engaged with the special-shaped tooth block 8 on the special-shaped gear 7, the first spring 9 compresses and rebounds to push the special-shaped tooth block 8 back to its original position, thereby avoiding the problem that the special-shaped gear 7 does not return to its original position after rotation, and when the sandstone-type uranium ore core stored in the core tube needs to be taken out, the multiple drill blocks 10 cannot be retracted, and the casing 4 cannot be installed in the drill pit, thereby improving the reliability of the device.

[0051] Example 3

[0052] See also Figure 3 In the figure, a smooth rubber plate 13 is arranged between the built-in circular plate 14 and the sleeve 4, and the smooth rubber plate 13 is fixedly connected to the built-in circular plate 14.

[0053] In this embodiment, the smooth rubber plate 13 is arranged so that when the sandstone-type uranium ore is being explored, positioned and cored, the smooth rubber plate 13 is located between the built-in circular plate 14 and the casing 4 to prevent the vibration during the drilling process from causing the sandstone-type uranium ore stored in the core tube to be vibrated and broken, thereby affecting the accuracy of the exploration, positioning and coring of the sandstone-type uranium ore.

[0054] See also Figure 2 and Figure 5 In the figure, a connecting bolt 38 is fixedly connected between the two square rods 3.

[0055] In this embodiment, by providing the connecting bolts 38, a plurality of square rods 3 are connected before positioning and coring in sandstone-type uranium ore exploration, thereby extending the depth of the drilling hole and improving the adaptability of the device.

[0056] See also Figure 3 and Figure 6 In the figure, the maximum distance from the drill block 10 to the center of the special-shaped gear 7 is greater than the maximum distance from the casing 4 to the center of the special-shaped gear 7. When the drill block 10 is in the retracted state, the maximum distance from the drill block 10 to the center is less than the minimum distance from the casing 4 to the center of the special-shaped gear 7.

[0057] In the present embodiment, when positioning and coring of sandstone-type uranium ore is being carried out, the maximum radius of the hole drilled by the drill block 10 is greater than the radius of the casing 4, thereby avoiding the problem that the casing 4 needs to be drilled out by itself when the drilling radius is smaller than the radius of the casing 4; when the drill block 10 is in the retracted state, the drill block 10 needs to be completely retracted to the inner wall of the casing 4, thereby avoiding the drill block 10 and the casing 4 from getting stuck, and the drill block 10 and the casing 4 are taken out together when positioning and coring of sandstone-type uranium ore is being carried out, thereby improving the reliability of the device.

[0058] A method for using an exploration positioning and coring device suitable for sandstone-type uranium mines comprises the following steps:

[0059] The first step: when exploring and locating sandstone-type uranium deposits and planning to carry out coring operations, drill holes at predetermined locations, and start coring when the holes are drilled to the appropriate locations. First, the first tube roll 21 and the second tube roll 22 are clamped and connected, and the arc block 20 is pushed to insert the arc block 20 on the first tube roll 21 into the arc groove 31 in the core tube base 19. Then, the locking ring 32 is threadedly connected and tightened with the bottle mouth half ring 24, and then it is placed in the built-in circular plate 14, and the cushion block 6 is placed, and then the casing 4 is placed on the outside of the smooth rubber plate 13, and the active cover 15 is connected with the screw on the built-in circular plate 14. The square rod 3 is matched with the groove, and then the square rod 3 is installed on the active cover 15. Multiple square rods 3 are installed together, and the top of the square rod 3 is installed together with the steel cable 39. The drilling rig body 1 is opened, and the drilling rig body 1 drives the drilling rig body 25 to work. The drilling rig body 25 drives the square rod 3 to move downward through multiple cylinders. The square rod 3 moves downward and drives the connecting block 5 to move downward. The connecting block 5 moves downward and pushes the casing 4 to move downward. The connecting block 5 also drives the built-in circular plate 14 to move downward. The built-in circular plate 14 drives the drill block ring 16 to move downward, and the drill block ring 16 drives the clamping plate 18 to move downward.

[0060] The second step: when the preset core-taking depth is reached, the motor in the drilling rig drilling body 25 drives the square rod 3 to rotate counterclockwise, and the rotation of the square rod 3 drives the connecting block 5 to rotate, and the rotation of the connecting block 5 drives the built-in circular plate 14 to rotate, and the rotation of the built-in circular plate 14 drives the connecting ring 26 to rotate, and the rotation of the connecting ring 26 drives the drill block ring 16 to rotate, and the rotation of the drill block ring 16 drives the multiple drill blocks 10 to rotate, and the clamping plate 18 rotates to drive the gear ring 17 to rotate, and the gear ring 17 rotates, and the teeth on the gear ring 17 are engaged with the special-shaped tooth block 8 on the special-shaped gear 7. When colliding counterclockwise, the teeth on the gear ring 17 push the special-shaped tooth block 8 on the special-shaped gear 7 to rotate toward the center of the special-shaped gear 7, and compress the first spring 9. After the teeth on the gear ring 17 are engaged with the special-shaped tooth block 8 on the special-shaped gear 7, the first spring 9 compresses and rebounds to push the special-shaped tooth block 8 back to its original position, and the gear ring 17 rotates to break the sandstone-type uranium ore, and collect the core into the core tube assembly;

[0061] The third step; when the collection is full, the motor drives the square rod 3 to rotate clockwise, the rotation of the square rod 3 drives the connecting block 5 to rotate, the rotation of the connecting block 5 drives the built-in circular plate 14 to rotate, the rotation of the built-in circular plate 14 drives the connecting ring 26 to rotate, the rotation of the connecting ring 26 drives the drill block ring 16 to rotate, the rotation of the drill block ring 16 drives multiple drill blocks 10 to rotate, the rotation of the clamping plate 18 drives the gear ring 17 to rotate, the gear ring 17 rotates, the teeth on the gear ring 17 engage with the special-shaped tooth block 8 on the special-shaped gear 7, the gear ring 17 drives the special-shaped gear 7 to rotate clockwise, the clockwise rotation of the special-shaped gear 7 drives the spiral groove 11 to rotate clockwise, the spiral groove 11 rotates clockwise, and multiple The spiral block 12 on the drill block 10 slides in the spiral groove 11, and the spiral groove 11 is an Archimedean spiral. The drill block 10 moves downward along the direction of the sliding block groove 29. When the drill block 10 moves to the limit position, the cable roller 23 is rotated to lift the cable 39 upward. The cable 39 moves upward to drive the square rod 3 to move upward. The square rod 3 moves upward to drive the connecting block 5 to move upward. The connecting block 5 drives the built-in circular plate 14 to move upward. The built-in circular plate 14 drives the drill block ring 16 to move upward. The drill block ring 16 drives the clamping plate 18 to move upward. The casing 4 is not subjected to the thrust of the active cover 15 and remains in the borehole to prevent the hole wall from collapsing due to unstable geological conditions.

[0062] The fourth step is to rise to a suitable height, tighten the bolt 37, the bolt 37 pushes the second clamping block 34, and the second clamping block 34 pushes the clamping plate 18 to approach the connecting bolt 38. The clamping plate 18 and the connecting bolt 38 clamp the square rod 3, disassemble the connecting bolt 38, disconnect the upper square rod 3 and the steel cable 39, and then connect the steel cable 39 to the lower square rod 3, and then pull upward, and repeat this process until the square rod 3 connected to the connecting block 5 is pulled up by the steel cable 39, remove the square rod 3, unscrew the active cover 15, take out the cushion block 6, slowly pour out the core tube containing the core, place the core tube assembly flat in the core box, unscrew the bottle mouth half ring 24, push the first tube roll 21 forward, so that the second tube roll 22 is completely separated from the first tube roll 21, rotate the core tube base 19, rotate the core into the core groove, and obtain the core.

[0063] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include"-"comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process-method-article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process-method-article or device.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling and coring device for sandstone-type uranium ore exploration, comprising a drilling rig body (1), characterized in that: A tower (36) is arranged above the drilling rig body (1), a steel cable roller (23) is arranged on one side of the tower (36), the outer wall of the steel cable roller (23) is rotatably connected to a steel cable (39), a drilling rig body (25) is arranged on one side of the drilling rig body (1), a drilling rig rotating sleeve (2) is arranged on the inner wall of the drilling rig body (25), a square rod (3) is arranged on the inner wall of the drilling rig rotating sleeve (2), one end of the square rod (3) is fixedly connected to a connecting block (5), the lower part of the connecting block (5) is fixedly connected to an active cover (15), and the active cover (15) is fixedly connected to the lower part of the connecting block (5). ) is movably connected to a cushion block (6) below, a core tube assembly for storing cores is movably connected to the cushion block (6) below, an inner circular plate (14) is fixedly connected to the outer wall of the cushion block (6), the outer wall of the upper part of the inner circular plate (14) is threadedly connected to the inner wall of the active cover (15), a casing (4) is arranged on the outer wall of the lower part of the inner circular plate (14), a connecting ring (26) is arranged below the inner circular plate (14), a drill block ring (16) is fixedly connected below the connecting ring (26), and a plurality of drill blocks (10) are evenly arranged on the inner wall of the drill block ring (16).

2. The exploration positioning and coring device suitable for sandstone-type uranium deposits according to claim 1, characterized in that: The inner wall of the connecting ring (26) is movably connected to a spiral ring (27), the inner wall of the spiral ring (27) is provided with a spiral groove (11), a plurality of the drill blocks (10) are fixedly connected with spiral clamping blocks (12) on their upper sides, the plurality of the spiral clamping blocks (12) are slidably connected to the inner wall of the spiral groove (11), a plurality of sliding clamping block grooves (29) are evenly provided on the inner wall of the drill block ring (16), sliding clamping blocks (30) are provided at both ends of the drill block (10), the sliding clamping blocks (30) are slidably connected to the inner wall of the sliding clamping block groove (29).

3. The exploration positioning and coring device suitable for sandstone-type uranium deposits according to claim 2, characterized in that: The core tube assembly comprises a core tube base (19) movably connected to the bottom of the cushion block (6); an arc groove (31) is provided at the lower end of the core tube base (19); an arc block (20) is movably connected to the inner wall of the arc groove (31); a first tube roll (21) is fixedly connected to the lower end of the drilling rig rotary sleeve (2); a second tube roll (22) is clamped and connected to one side of the first tube roll (21); the lower ends of the first tube roll (21) and the second tube roll (22) are both fixedly connected to a bottle mouth half ring (24); and the inner walls of the two bottle mouth half rings (24) are both threadedly connected to the inner wall of a locking ring (32).

4. The exploration positioning and coring device suitable for sandstone-type uranium deposits according to claim 3 is characterized in that: A first clamping block (33) is fixedly connected to one side of the drilling rig body (1); a second clamping block (34) is provided on one side of the first clamping block (33); a clamping plate (18) is provided on one side of the second clamping block (34); a plurality of second springs (35) are fixedly connected between the second clamping block (34) and the clamping plate (18); and a bolt (37) is threadedly connected to the inner wall of the second clamping block (34).

5. The exploration positioning and coring device suitable for sandstone-type uranium deposits according to claim 2, characterized in that: The upper end of the connecting ring (26) is fixedly connected to a gear ring (17), the upper part of the spiral ring (27) is fixedly connected to a special-shaped gear (7), the outer wall of the special-shaped gear (7) is provided with a plurality of special-shaped gear grooves (28), the inner walls of the plurality of special-shaped gear grooves (28) are all provided with special-shaped tooth blocks (8), and the plurality of special-shaped tooth blocks (8) are all hinged to the outer wall of the spiral ring (27).

6. The exploration positioning and coring device suitable for sandstone-type uranium deposits according to claim 5, characterized in that: A first spring (9) is fixedly connected between the special-shaped gear groove (28) and the special-shaped gear block (8).

7. The exploration positioning and coring device suitable for sandstone-type uranium deposits according to claim 3, characterized in that: A smooth rubber plate (13) is provided between the built-in circular plate (14) and the sleeve (4), and the smooth rubber plate (13) is fixedly connected to the built-in circular plate (14).

8. The exploration positioning and coring device suitable for sandstone-type uranium deposits according to claim 3, characterized in that: A connecting bolt (38) is fixedly connected between the two square rods (3).

9. The exploration positioning and coring device suitable for sandstone-type uranium deposits according to claim 3, characterized in that: The maximum distance from the drill block (10) to the center of the special-shaped gear (7) is greater than the maximum distance from the casing (4) to the center of the special-shaped gear (7); when the drill block (10) is in a retracted state, the maximum distance from the drill block (10) to the center is less than the minimum distance from the casing (4) to the center of the special-shaped gear (7).

10. A method for using an exploration positioning and coring device suitable for sandstone-type uranium deposits, characterized in that: The following steps are involved: first step; When exploring and locating sandstone-type uranium deposits and planning to carry out coring operations, a hole is drilled at a predetermined position, and coring is started when the hole is drilled to a suitable position. First, the first tube roll (21) and the second tube roll (22) are clamped and connected, and the arc block (20) is pushed to insert the arc block (20) on the first tube roll (21) into the arc groove (31) in the core tube base (19). Then, the locking ring (32) is threadedly connected and tightened with the bottle mouth half ring (24), and then it is placed in the built-in circular plate (14), and the cushion block (6) is placed, and then the sleeve (4) is placed on the outside of the smooth rubber plate (13), and the active cover (15) is matched with the thread on the built-in circular plate (14). Then, the square rod (3) is installed on the active cover (15), and a plurality of square rods (3) are installed together. The top of the square rod (3) is installed together with the steel cable (39), and the drilling rig body (1) is opened. The drilling rig body (1) drives the drilling rig body (25) to work. The drilling rig body (25) drives the square rod (3) to move downward through a plurality of cylinders. The square rod (3) moves downward, driving the connecting block (5) to move downward. The connecting block (5) moves downward, pushing the casing (4) to move downward. The connecting block (5) also drives the built-in circular plate (14) to move downward. The built-in circular plate (14) drives the drill block ring (16) to move downward. The drill block ring (16) drives the clamping plate (18) to move downward. The second step: when the preset core sampling depth is reached, the motor in the drilling body (25) of the drilling rig drives the square rod (3) to rotate counterclockwise, the rotation of the square rod (3) drives the connecting block (5) to rotate, the rotation of the connecting block (5) drives the internal circular plate (14) to rotate, the rotation of the internal circular plate (14) drives the connecting ring (26) to rotate, the rotation of the connecting ring (26) drives the drill block ring (16) to rotate, the rotation of the drill block ring (16) drives the multiple drill blocks (10) to rotate, the rotation of the clamping plate (18) drives the gear ring (17) to rotate, the gear ring (17) rotates The teeth on the gear ring (17) mesh with the special-shaped tooth block (8) on the special-shaped gear (7). When the gear ring (17) collides in a counterclockwise direction, the teeth on the gear ring (17) push the special-shaped tooth block (8) on the special-shaped gear (7) to rotate toward the center of the special-shaped gear (7) and compress the first spring (9). After the teeth on the gear ring (17) and the special-shaped tooth block (8) on the special-shaped gear (7) are meshed, the first spring (9) is compressed and rebounded to push the special-shaped tooth block (8) back to its original position. The gear ring (17) rotates to break the sandstone-type uranium ore, and the core is collected in the core tube assembly; The third step: when the collection is full, the motor drives the square rod (3) to rotate clockwise, the rotation of the square rod (3) drives the connecting block (5) to rotate, the rotation of the connecting block (5) drives the built-in circular plate (14) to rotate, the rotation of the built-in circular plate (14) drives the connecting ring (26) to rotate, the rotation of the connecting ring (26) drives the drill block ring (16) to rotate, the rotation of the drill block ring (16) drives the multiple drill blocks (10) to rotate, the rotation of the clamping plate (18) drives the gear ring (17) to rotate, the gear ring (17) rotates, the teeth on the gear ring (17) mesh with the special-shaped tooth block (8) on the special-shaped gear (7), the gear ring (17) drives the special-shaped gear (7) to rotate clockwise, the clockwise rotation of the special-shaped gear (7) drives the spiral groove (11) to rotate clockwise, the spiral groove (11) rotates clockwise, and the multiple drill blocks (10) rotate. The spiral block (12) on the drill block (10) slides in the spiral groove (11), and the spiral groove (11) is an Archimedean spiral line, so the drill block (10) moves downward along the direction of the sliding block groove (29). When the drill block (10) moves to the limit position, the steel cable roller (23) is rotated to lift the steel cable (39) upward, and the steel cable (39) moves upward to drive the square rod (3) to move upward, and the square rod (3) moves upward to drive the connecting block (5) to move upward, and the connecting block (5) drives the built-in circular plate (14) to move upward, and the built-in circular plate (14) drives the drill block ring (16) to move upward, and the drill block ring (16) drives the clamping plate (18) to move upward, and the casing (4) is not subjected to the thrust of the active cover (15) and remains in the borehole, thereby preventing the hole wall from collapsing due to unstable geological conditions; Step 4: Raise to a suitable height, tighten the bolt (37), the bolt (37) pushes the second clamping block (34), the second clamping block (34) pushes the clamping plate (18) close to the connecting bolt (38), the clamping plate (18) and the connecting bolt (38) clamp the square rod (3), disassemble the connecting bolt (38), disconnect the upper square rod (3) and the steel cable (39), then connect the steel cable (39) to the lower square rod (3), and then pull upwards, repeating this process until the square rod (3) is lifted. The square rod (3) connected to the connecting block (5) is pulled up by the steel cable (39), the square rod (3) is removed, the active cover (15) is unscrewed, the cushion block (6) is taken out, the core tube containing the core is slowly poured out, the core tube assembly is placed flat in the core box, the bottle mouth half ring (24) is unscrewed, the first tube roll (21) is pushed forward, the second tube roll (22) is completely separated from the first tube roll (21), the core tube base (19) is rotated, the core is rotated and placed into the core groove, and the core is obtained.