A coring device for investigating fractured rock

Abstract

The present application relates to the technical field of surveying and coring, in particular to a surveying and coring device for broken rock, which comprises a drilling machine main body, a driving drill rod is arranged on the drilling machine main body, an extension drill rod is arranged on one side of the drilling machine main body, clamping plates are arranged on one side of the extension drill rod, a clamping mechanism is arranged on the drilling machine main body, and a limiting mechanism is arranged on the drilling machine main body. The surveying and coring device for broken rock is different from the prior art. When the staff uses the device, the clamping mechanism is used to drive the displacement of the clamping plates, the extension drill rod is clamped, the limiting mechanism is used to control the clamping mechanism, the positions of the clamping plates are limited, the clamping plates are prevented from deviating, the original drill rod is clamped by an assistant when the extension drill rod is connected, the operation difficulty is reduced, and the rod changing efficiency and the core verticality are improved.

Description

Technical Field

[0001] This invention relates to the field of core sampling technology, specifically to a core sampling device for fractured rocks. Background Technology

[0002] Core sampling refers to the process of taking rock samples from the drilled strata to understand the geological conditions of the formation. The results of core sampling can be used to determine the characteristics of the strata, geological structure, and infer geological evolution. Core sampling is mostly carried out using exploration drilling rigs, which are usually composed of a power unit, active drill rod, drill bit, and extension drill rod. The power unit drives the active drill rod and drill bit to rotate. To ensure a certain drilling depth, after each core sampling is completed, it is necessary to connect the extension drill rod to perform continuous core sampling.

[0003] Existing methods for coring using drilling rigs require the use of clamps to hold the previously drilled extended drill rod when connecting it to the inclined surface of the drill rod, preventing it from falling off. After connecting the new extended drill rod, the clamps are removed and released from the drilling rig body. This process requires operators to bend over significantly to retrieve the clamps and manually adjust their position, which is inconvenient and cannot guarantee that the extended drill rod and the main drill rod are aligned. This poses a risk of connection misalignment between the drill rods. During continuous coring, the connection misalignment of multiple extended drill rods gradually accumulates, affecting rod changing efficiency and coring verticality. Therefore, we propose a coring device for exploring fractured rock. Summary of the Invention

[0004] One of the technical problems this application aims to solve is: how to assist personnel in clamping the original drill rod when connecting extended drill rods, thereby reducing the difficulty of operation and preventing drill rod displacement.

[0005] To address the aforementioned technical problems, this application provides a core sampling device for fractured rock, comprising a drilling rig body, an active drill rod mounted on the drilling rig body, an extended drill rod mounted on one side of the drilling rig body, and further comprising:

[0006] Clamping plates, wherein multiple clamping plates are provided, and multiple clamping plates are provided on one side of the extended drill pipe;

[0007] The clamping mechanism is used to drive the displacement of multiple clamping plates to clamp the extended drill rod, assist the operator in connecting the extended drill rod, ensure that the axis of the extended drill rod and the active drill rod are on the same straight line, ensure rod changing efficiency and core sampling verticality, and is set on the main body of the drilling rig.

[0008] A limiting mechanism is provided on the drilling rig body to control the clamping mechanism, limit the position of the multiple clamping plates, prevent the multiple clamping plates from shifting.

[0009] In some embodiments, the clamping mechanism includes a mounting base disposed on the drilling rig body, a fixed plate disposed on the mounting base, a rotating plate disposed above the fixed plate, a plurality of clamping plates disposed between the fixed plate and the rotating plate, a plurality of connecting rods disposed on the rotating plate, a chuck disposed on each of the plurality of connecting rods, and an arc groove disposed on the fixed plate that matches the plurality of connecting rods and the chuck.

[0010] The mounting base is provided with a pulling component for driving the rotating disk to rotate;

[0011] The fixed disk is provided with a guide assembly, which is used to drive the displacement of the multiple clamping plates and guide the multiple clamping plates when the rotating disk rotates.

[0012] In some embodiments, the pulling assembly includes a connecting plate disposed on a mounting base, a pulley disposed on the mounting base, a connecting block disposed on the rotating disk, and a pull wire disposed on one side of the mounting base. The pull wire passes sequentially through the side plate of the mounting base, the connecting plate, across the pulley, and connects to the connecting block.

[0013] In some embodiments, the wire is nylon steel wire.

[0014] In some embodiments, the guiding assembly includes a guide groove disposed on a fixed disk, a guide plate disposed on each of the plurality of clamping plates, a guide post disposed on each of the plurality of clamping plates, and a through groove disposed on the rotating disk that matches the plurality of guide posts.

[0015] The guide groove is provided with multiple limiting members, which are used to limit the initial position of the multiple clamping plates respectively.

[0016] In some embodiments, the limiting member includes a fixing block disposed on the guide groove, and a first spring is disposed between the fixing block and the guide plate.

[0017] In some embodiments, the limiting mechanism includes a fixed cylinder disposed on the drilling rig body, a grooved cylinder disposed inside the fixed cylinder, a pressing rod disposed on the grooved cylinder, and the pull wire connected to the pressing rod;

[0018] The pressing rod is provided with a locking component, which is used to lock the pressing rod and the wire after the pressing rod is pressed once, thereby limiting the position of the rotating disk and multiple clamping plates;

[0019] The locking component is provided with an unlocking component, which is used to release the locking of the pressing rod and the wire after the pressing rod is pressed again.

[0020] In some embodiments, the locking assembly includes a displacement column disposed on a pressing rod, a second spring disposed on the displacement column, a pushing plate disposed on the grooved cylinder, an elastic strip disposed on the pushing plate, a third spring disposed between the pushing plate and the fixed cylinder, and a locking groove disposed on the fixed cylinder that matches the elastic strip.

[0021] In some embodiments, the unlocking component includes an arc-shaped opening on one side of the displacement column, and a grooved plate is provided on the elastic strip, with the grooved portion of the grooved plate having rounded corners on the side near the arc-shaped opening.

[0022] In some embodiments, the drilling rig body is provided with two fixing bars, and a rotating plate is rotatably arranged between the two fixing bars. The rotating plate is positioned above the pressing rod, and a pedal is provided at one end of the rotating plate.

[0023] This invention has at least the following beneficial effects:

[0024] Unlike existing technologies, this device allows workers to use a clamping mechanism to move multiple clamping plates when using it to explore broken rock cores, thereby clamping the extended drill rod. The limiting mechanism controls the clamping mechanism to limit the position of the multiple clamping plates, preventing them from shifting. When connecting the extended drill rod, it assists workers in clamping the original drill rod, reducing operational difficulty and improving rod changing efficiency and core verticality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 Schematic diagram of partial cross-section;

[0027] Figure 3 This is a schematic diagram of the clamping mechanism and limiting mechanism of the present invention;

[0028] Figure 4 For the present invention Figure 3 Schematic diagram of partial cross-section;

[0029] Figure 5 For the present invention Figure 4 Schematic diagram of partial cross-section;

[0030] Figure 6 This is a schematic diagram of the clamping plate, guide plate, guide post and first spring structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the mechanism structure defined in this invention;

[0032] Figure 8 For the present invention Figure 7 Schematic diagram of partial cross-section;

[0033] Figure 9 For the present invention Figure 8 Schematic diagram of partial cross-section;

[0034] Figure 10 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0035] Figure 11 This is a schematic diagram of the structure of the fixing bar, rotating plate and pedal in Embodiment 2 of the present invention.

[0036] In the diagram: 1. Drill rig body; 2. Active drill rod; 3. Extended drill rod; 4. Clamping plate; 5. Clamping mechanism; 51. Mounting base; 52. Fixed plate; 53. Rotating plate; 54. Connecting rod; 55. Chuck; 56. Arc groove; 6. Limiting mechanism; 61. Fixed cylinder; 62. Groove cylinder; 63. Pressing rod; 7. Pulling assembly; 71. Connecting plate; 72. Pulley; 73. Connecting block; 74. Wire drawing; 8. Guide assembly; 81. Guide groove; 82. Guide plate; 83. Guide post; 84. Through groove; 9. Limiting component; 91. Fixing block; 92. First spring; 10. Locking assembly; 101. Displacement post; 102. Second spring; 103. Push plate; 104. Elastic strip; 105. Third spring; 106. Locking groove; 11. Unlocking assembly; 111. Arc opening; 112. Groove plate; 12. Fixing strip; 13. Rotating plate; 14. Pedal. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1

[0039] Please see Figure 1-9 The present invention provides a technical solution:

[0040] A core sampling device for excavating fractured rock includes a drilling rig body 1, an active drill rod 2 mounted on the drilling rig body 1, and an extension drill rod 3 mounted on one side of the drilling rig body 1. The extension drill rod 3 has polygonal protrusions for clamping and supporting it during connection to prevent it from falling off. The device also includes:

[0041] Clamping plate 4, multiple clamping plates 4 are provided, and multiple clamping plates 4 are provided on one side of the extended drill rod 3;

[0042] The clamping mechanism 5 is used to drive multiple clamping plates 4 to move and clamp the extended drill rod 3, assisting the operator in connecting the extended drill rod 3, ensuring that the axis of the extended drill rod 3 and the active drill rod 2 are on the same straight line, ensuring rod changing efficiency and core sampling verticality, and is set on the main body 1 of the drilling machine.

[0043] The limiting mechanism 6 is used to control the clamping mechanism 5, limit the position of multiple clamping plates 4, prevent the multiple clamping plates 4 from shifting, and is set on the drilling rig body 1.

[0044] The clamping mechanism 5 includes a mounting base 51 mounted on the drilling rig body 1, a fixed plate 52 mounted on the mounting base 51, a rotating plate 53 mounted above the fixed plate 52, and multiple clamping plates 4 positioned between the fixed plate 52 and the rotating plate 53. The rotating plate 53 has multiple connecting rods 54, each with a chuck 55. The fixed plate 52 has arc grooves 56 that match the connecting rods 54 and the chucks 55. Under the action of the connecting rods 54 and the chucks 55, the rotating plate 53 can rotate on the fixed plate 52, simultaneously providing a secure grip for the multiple clamping plates 4. The space is provided to support multiple clamping plates 4; the outer diameter of the chuck 55 is larger than that of the connecting rod 54, so that the rotating disk 53 is closely connected to the fixed disk 52. When the multiple clamping plates 4 clamp the extended drill rod 3, the rotating disk 53 is prevented from shifting and falling off due to force; the multiple clamping plates 4 clamp the extended drill rod 3 to ensure that the central axis of the extended drill rod 3 and the active drill rod 2 are on the same straight line, and to ensure that the extended drill rod 3 and the active drill rod 2 are in a perpendicular state after connection, reducing the cumulative offset of the extended drill rod 3 and the active drill rod 2, and improving the verticality of the core sampling in the subsequent continuous core sampling process.

[0045] The mounting base 51 is provided with a pulling component 7 for driving the rotating disk 53 to rotate. The pulling component 7 includes a connecting plate 71 provided on the mounting base 51, a pulley 72 provided on the mounting base 51, a connecting block 73 provided on the rotating disk 53, and a wire 74 provided on one side of the mounting base 51. The wire 74 passes through the side plate of the mounting base 51, the connecting plate 71, crosses the pulley 72, and connects to the connecting block 73. Pulling the wire 74 causes the connecting block 73 and the rotating disk 53 to rotate under force.

[0046] The 74 wire is made of nylon steel wire. Nylon steel wire not only has the flexibility of nylon and the hardness of steel wire, but also has excellent wear resistance, mechanical strength and corrosion resistance. It will not stretch when pulled, ensuring the effective displacement of multiple clamps 4. Its excellent performance ensures that the service life is extended when used in the field.

[0047] A guide assembly 8 is provided on the fixed disk 52 to drive the displacement of multiple clamping plates 4 and guide the multiple clamping plates 4 when the rotating disk 53 rotates. The guide assembly 8 includes a guide groove 81 provided on the fixed disk 52, a guide plate 82 provided on each of the multiple clamping plates 4, a guide post 83 provided on each of the multiple clamping plates 4, and a through groove 84 provided on the rotating disk 53 that matches the multiple guide posts 83. When the rotating disk 53 rotates, under the action of the through groove 84 and the guide post 83, the clamping plates 4 and the guide plate 82 are driven to move along the guide groove 81, changing the relative position of the multiple clamping plates 4, so that the area formed by the multiple clamping plates 4 is reduced, thereby clamping the extended drill rod 3. The protruding part of the extended drill rod 3 is provided with a slope, so that when the extended drill rod 3 is rotated after clamping, the rotation of the extended drill rod 3 is avoided.

[0048] Multiple limiting members 9 are provided in the guide groove 81 to limit the initial position of multiple clamping plates 4 respectively. The limiting member 9 includes a fixing block 91 provided on the guide groove 81, and a first spring 92 is provided between the fixing block 91 and the guide plate 82. The first spring 92 and the fixing block 91 limit the initial position of the clamping plate 4, and assist the corresponding clamping plate 4 to return to the initial position when the wire drawing 74 is retracted.

[0049] The limiting mechanism 6 includes a fixed cylinder 61 installed on the drilling rig body 1, a grooved cylinder 62 installed inside the fixed cylinder 61, a pressing rod 63 installed on the grooved cylinder 62, and a wire puller 74 connected to the pressing rod 63; the pressing rod 63 moves downward, and the wire puller 74 is displaced by force.

[0050] A locking assembly 10 is provided on the pressing rod 63 to lock the pressing rod 63 and the wire puller 74 after pressing the pressing rod 63 once, thereby limiting the position of the rotating disk 53 and the multiple clamping plates 4. The locking assembly 10 includes a displacement column 101 provided on the pressing rod 63, a second spring 102 provided on the displacement column 101, a push plate 103 provided on the grooved cylinder 62, an elastic strip 104 provided on the push plate 103, a third spring 105 provided between the push plate 103 and the fixed cylinder 61, and a slot 106 provided on the fixed cylinder 61 that matches the elastic strip 104.

[0051] The locking assembly 10 is equipped with an unlocking assembly 11, which is used to release the locking of the pressing rod 63 and the pull wire 74 after the pressing rod 63 is pressed again. The unlocking assembly 11 includes an arc-shaped opening 111 on one side of the displacement column 101, and a grooved plate 112 on the elastic strip 104. The grooved part of the grooved plate 112 is rounded on the side near the arc-shaped opening 111. Pushing the pressing rod 63 causes the displacement column 101 to move, and the second spring 102 is compressed and pushes the push plate 103, which in turn moves the grooved cylinder 62, the elastic strip 104, and the grooved plate 112. After the elastic strip 104 is displaced, it engages with the slot 106, thereby limiting the position of the pressing rod 63 and the wire puller 74. When the pressing rod 63 is pushed again, the displacement column 101 makes a slight displacement, and the arc 111 pushes the groove plate 112, causing the elastic strip 104 to move away from the slot 106. The elastic strip 104 is released from the slot 106. Under the action of the second spring 102 and the third spring 105, the pressing rod 63 and the groove cylinder 62 return to their initial positions, thereby releasing the position limitation on the pressing rod 63 and the wire puller 74.

[0052] In use, the pressing rod 63 can be pushed by foot. When the extended drill rod 3 needs to be clamped, pushing the pressing rod 63 causes the displacement column 101 to move. The second spring 102 is compressed and pushes the push plate 103, causing the groove cylinder 62, elastic strip 104, and groove plate 112 to move. After the elastic strip 104 moves, it engages with the slot 106, thereby limiting the position of the pressing rod 63. During this process, the pressing rod 63 pulls the wire 74, which drives the connecting block 73 and the rotating disk 53 to rotate. When the rotating disk 53 rotates, under the action of the through groove 84 and the guide post 83, it drives the clamping plate 4 and the guide plate 82 to move along the guide groove 81, changing the relative position of the multiple clamping plates 4, so that the multiple clamping plates 4 The area formed is reduced, thus the clamping plate 4 clamps the extended drill rod 3 to ensure that the extended drill rod 3 and the active drill rod 2 are aligned, which facilitates connection. When the extended drill rod 3 needs to be released after connection, the pressing rod 63 is pushed again, the displacement column 101 makes a slight displacement, the arc 111 pushes the groove plate 112, and drives the elastic strip 104 to move away from the slot 106. The elastic strip 104 is released from the slot 106. Under the action of the second spring 102 and the third spring 105, the pressing rod 63 and the groove cylinder 62 return to the initial position, thereby releasing the position restriction on the pressing rod 63 and the wire puller 74, and then driving the multiple clamping plates 4 back to the initial position, releasing the clamping of the extended drill rod 3.

[0053] Example 2

[0054] Please see Figure 1-11 The present invention provides a technical solution:

[0055] Unlike Embodiment 1, the drilling rig body 1 is provided with two fixing bars 12, and a rotating plate 13 is rotatably arranged between the two fixing bars 12. The rotating plate 13 is positioned above the pressing rod 63, and a pedal 14 is provided at one end of the rotating plate 13. The pressing rod 63 can be moved by stepping on the pedal 14. The pedal 14 increases the force application point and force application area, and force can be applied from multiple directions, which is convenient for personnel to operate.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A core sampling device for exploring fractured rocks, comprising a drilling rig body (1), wherein an active drill rod (2) is provided on the drilling rig body (1), and an extended drill rod (3) is provided on one side of the drilling rig body (1), characterized in that, It also includes: Clamping plate (4), multiple clamping plates (4) are provided, and multiple clamping plates (4) are provided on one side of the extended drill rod (3); The clamping mechanism (5) is used to drive the multiple clamping plates (4) to move and clamp the extended drill rod (3), assisting the operator to connect the extended drill rod (3), ensuring that the axis of the extended drill rod (3) and the active drill rod (2) are on the same straight line, ensuring rod changing efficiency and core verticality, and is set on the main body (1) of the drilling machine. A limiting mechanism (6) is used to control the clamping mechanism (5) to limit the position of the multiple clamping plates (4) to prevent the multiple clamping plates (4) from shifting, and is provided on the drilling rig body (1); The clamping mechanism (5) includes a mounting base (51), a fixed plate (52) and a rotating plate (53). Multiple clamping plates (4) are disposed between the fixed plate (52) and the rotating plate (53). Each of the multiple clamping plates (4) is provided with a guide plate (82). The fixed plate (52) of the clamping mechanism (5) is provided with a guide groove (81) that matches the guide plate. A first spring (92) is provided between the guide groove (81) and the guide plate (82). The limiting mechanism (6) includes a fixed cylinder (61) disposed on the drilling rig body (1), a grooved cylinder (62) disposed inside the fixed cylinder (61), a pressing rod (63) disposed on the grooved cylinder (62), and the pressing rod (63) being connected to the rotating disk (53) by a wire (74). The pressing rod (63) is provided with a locking component (10) for locking the pressing rod (63) and the wire (74) after pressing the pressing rod (63) once, thereby limiting the position of the rotating disk (53) and the multiple clamping plates (4); The locking component (10) is provided with an unlocking component (11) for releasing the locking of the pressing rod (63) and the wire (74) after the pressing rod (63) is pressed again.

2. The exploration and core sampling device for fractured rock according to claim 1, characterized in that: The rotating disk (53) is provided with a plurality of connecting rods (54), and each of the plurality of connecting rods (54) is provided with a chuck (55). The fixed disk (52) is provided with an arc groove (56) that matches the plurality of connecting rods (54) and the chuck (55). The mounting base (51) is provided with a pulling component (7) for driving the rotating disk (53) to rotate; The fixed disk (52) is provided with a guide component (8) for driving the displacement of multiple clamping plates (4) when the rotating disk (53) rotates, and for guiding the multiple clamping plates (4).

3. The exploration and core sampling device for fractured rock according to claim 2, characterized in that: The pulling assembly (7) includes a connecting plate (71) disposed on a mounting base (51), a pulley (72) disposed on the mounting base (51), a connecting block (73) disposed on the rotating disk (53), and a wire (74) disposed on one side of the mounting base (51). The wire (74) passes through the side plate of the mounting base (51) and the connecting plate (71) in sequence, crosses the pulley (72), and connects to the connecting block (73).

4. The exploration and core sampling device for fractured rock according to claim 3, characterized in that: The wire (74) is nylon steel wire.

5. The exploration and core sampling device for fractured rock according to claim 2, characterized in that: The guide assembly (8) includes guide plates (82) provided on multiple clamping plates (4), guide posts (83) provided on multiple clamping plates (4), and through slots (84) provided on the rotating disk (53) that match the multiple guide posts (83). The guide groove (81) is provided with a plurality of limiting members (9) for limiting the initial position of the plurality of clamps (4) respectively.

6. The exploration and core sampling device for fractured rock according to claim 5, characterized in that: The limiting member (9) includes a fixing block (91) disposed on the guide groove (81).

7. The exploration and core sampling device for fractured rock according to claim 1, characterized in that: The locking assembly (10) includes a displacement column (101) disposed on the pressing rod (63), a second spring (102) disposed on the displacement column (101), a push plate (103) disposed on the groove cylinder (62), an elastic strip (104) disposed on the push plate (103), a third spring (105) disposed between the push plate (103) and the fixed cylinder (61), and a locking groove (106) that matches the elastic strip (104) disposed on the fixed cylinder (61).

8. The exploration and core sampling device for fractured rock according to claim 7, characterized in that: The unlocking component (11) includes an arc opening (111) on one side of the displacement column (101), and a groove plate (112) is provided on the elastic strip (104). The grooved part of the groove plate (112) is rounded on the side near the arc opening (111).

9. The core sampling device for fractured rock exploration according to claim 8, characterized in that: The drilling rig body (1) is provided with two fixing bars (12), and a rotating plate (13) is rotatably arranged between the two fixing bars (12). The rotating plate (13) is placed above the pressing rod (63), and a pedal (14) is provided at one end of the rotating plate (13).

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