Geological drilling sampler

Abstract

The utility model belongs to the technical field of drilling sampling, and discloses a geological drilling sampler. The sampler comprises a vibration device, a sampling mechanism, a connecting cylinder and a locking mechanism. One end of the sampling mechanism is connected with the vibration device, the other end of the sampling mechanism is connected with a drill bit, the sampling mechanism comprises at least two sampling rods, and connecting parts are arranged at the ends, facing each other, of the adjacent sampling rods. A connecting cylinder is arranged between every two adjacent sampling rods, internal threads are arranged at the two ends of each connecting cylinder, and the connecting parts are in threaded connection with the connecting cylinders through the internal threads. Locking mechanisms are arranged at the two ends of the connecting cylinder, each locking mechanism comprises two locking assemblies which are oppositely arranged, the connecting part can be moved and switched between a first preset position and a second preset position by screwing the sampling rod or the connecting cylinder, the connecting part can be locked with the locking assemblies in the first preset position, and the connecting part can be locked with the locking assemblies in the second preset position. And the connecting part can be unlocked from the locking assembly. According to the sampler, the connection stability between the adjacent sampling rods can be ensured, and the sampling rods are prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling and sampling, in particular to a geological drilling sampler. Background Art

[0002] Geological sampling refers to taking a certain number of representative samples from ores, rocks or other geological bodies and mineral products according to certain requirements, and inferring the composition of underground structures through analysis, testing, identification and research of the samples taken.

[0003] The commonly used tool for geological sampling is the geological drill sampler, which mainly includes a sampling rod. One end of the sampling rod is connected to a vibration device, and the other end is connected to a drill bit. The vibration device can provide power for the sampler, so that the sample is drilled through the drill bit. When collecting geological samples at a deeper depth, multiple sampling rods are usually screwed together in sequence to meet the requirements of deep collection. However, the threaded connection is prone to rust and aging, which may cause the sampling rod to fall off, affecting the geological sampling task. Utility Model Content

[0004] The utility model aims to provide a geological drilling sampler, which can ensure the stability of the connection between adjacent sampling rods and prevent the sampling rods from falling off.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Geological drill sampler, including:

[0007] Vibration device;

[0008] A sampling mechanism, one end of which is connected to the vibration device and the other end of which is connected to a drill bit, the sampling mechanism comprising at least two sampling rods, and adjacent sampling rods are provided with connecting parts at their ends facing each other;

[0009] A connecting tube, wherein the connecting tube is disposed between adjacent sampling rods, and both ends of the connecting tube are provided with internal threads, and the connecting portion is threadedly connected to the connecting tube through the internal threads;

[0010] A locking mechanism is provided at both ends of the connecting tube, and the locking mechanism includes two locking assemblies arranged opposite to each other. By screwing the sampling rod or the connecting tube, the connecting part can be moved and switched between a first preset position and a second preset position. When in the first preset position, the connecting part can be locked with the locking assembly, and when in the second preset position, the connecting part can be unlocked with the locking assembly.

[0011] Preferably, the locking assembly includes a locking block and an elastic member, a receiving groove is radially arranged on the inner wall of the connecting cylinder, the receiving groove is arranged in a one-to-one correspondence with the locking assembly, the locking block is slidably arranged in the receiving groove, one end of the elastic member is connected to the inner wall of the receiving groove, and the other end is connected to the locking block, and the connecting portion is circumferentially provided with a card groove, and when in the first preset position, the locking block can be snapped into the card groove under the elastic force of the elastic member.

[0012] Preferably, the end of the connecting portion is provided with a connected first guide surface and a vertical guide surface, and the end of the locking block away from the elastic member is provided with a connected second guide surface and a third guide surface, the first guide surface can slide with the second guide surface, and the vertical guide surface can slide with the third guide surface to drive the locking block to retract into the accommodating groove, and when in the first preset position, the vertical guide surface is disengaged from the third guide surface, and the locking block can be snapped into the slot.

[0013] Preferably, the locking mechanism also includes an unlocking block arranged in the slot, the unlocking block and the locking block are arranged in a one-to-one correspondence, and the unlocking block is arranged to be inclined along the rotation direction of the internal thread. When in the second preset position, the unlocking block can abut against the locking block to drive the locking block to retract into the accommodating groove and disengage the locking block from the slot.

[0014] Preferably, the locking block is provided with a fourth guide surface, and when in the second preset position, the fourth guide surface can slidably cooperate with the third guide surface to drive the locking block to retract into the accommodating groove.

[0015] Preferably, a limiting block is also provided on the locking block, and a limiting groove connected to the accommodating groove is provided on the inner wall of the connecting cylinder, the limiting groove extends along the sliding direction of the locking block, and the length of the limiting groove is smaller than the length of the accommodating groove, and the limiting block is inserted into the limiting groove and can slide with the limiting groove.

[0016] Preferably, it further includes a supporting mechanism, which includes a supporting plate and a plurality of adjusting members arranged at intervals, the sampling mechanism is movably inserted through the supporting plate, one end of the adjusting member is movably inserted through the supporting plate, and the other end can be inserted into an underground structure.

[0017] Preferably, the support plate is provided with a plurality of threaded holes, the plurality of threaded holes are provided in one-to-one correspondence with the plurality of adjusting members, and the adjusting members are screwed to the support plate through the threaded holes.

[0018] Preferably, the support mechanism further comprises a measuring piece, wherein the measuring piece is arranged on the support plate, and the measuring piece is used to measure the installation angle of the support plate.

[0019] Preferably, the drill bit is provided with a collecting hole along the axial direction, and the collecting hole passes through each of the sampling rods.

[0020] Beneficial effects of the utility model:

[0021] The vibration device can provide power for the sampling mechanism to drill samples through the drill bit at the end of the sampling mechanism. The sampling mechanism includes at least two sampling rods. By changing the number of sampling rods, different sampling depths can be adapted to improve the versatility of the sampler. When connecting adjacent sampling rods, the connecting portion of the sampling rod is screwed into the connecting tube. When the connecting portion moves to the first preset position, the locking assembly can lock the connecting portion, thereby ensuring the stability of the connection between adjacent sampling rods and preventing the sampling rod from falling off due to aging of the thread. When dismantling, the connecting tube or the sampling rod is screwed to move the connecting portion to the second preset position. At this time, the connecting portion and the locking assembly are unlocked, so that the adjacent sampling rod can be removed. The connection portion and the locking assembly can be switched between the locked position and the unlocked position by screwing the sampling rod or the connecting tube, which is convenient for assembly and disassembly and improves sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the geological drilling sampler provided by the utility model;

[0023] Figure 2 It is a schematic diagram of the internal structure of the geological drilling sampler provided by the utility model;

[0024] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0025] Figure 4 It is a schematic diagram of the internal structure of the connecting tube of the geological drilling sampler provided by the utility model;

[0026] Figure 5 The utility model is a schematic diagram of the structure of a sampling rod of a geological drilling sampler.

[0027] In the figure:

[0028] 1. Vibration device; 11. Handrail; 12. Connecting joint;

[0029] 2. Sampling mechanism; 21. Sampling rod; 211. External thread; 212. Card slot; 213. First guide surface; 214. Vertical guide surface; 22. Drill bit; 221. Collection hole;

[0030] 3. Connecting tube; 31. Accommodating groove; 32. Limiting groove;

[0031] 4. Locking mechanism; 41. Locking block; 411. Second guide surface; 412. Third guide surface; 413. Limiting block; 42. Elastic member; 43. Unlocking block; 431. Fourth guide surface;

[0032] 5. Support mechanism; 51. Support plate; 52. Adjustment member; 521. Screwing portion; 53. Measuring member. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] See also Figures 1 to 5, this embodiment provides a geological drilling sampler, which can ensure the stability of the connection between adjacent sampling rods 21 and prevent the sampling rods 21 from falling off. The geological sampler includes a vibration device 1, a sampling mechanism 2, a connecting tube 3 and a locking mechanism 4. One end of the sampling mechanism 2 is connected to the vibration device 1, and the other end is connected to the drill bit 22. The sampling mechanism 2 includes at least two sampling rods 21, and the ends of the adjacent sampling rods 21 facing each other are provided with a connecting portion. A connecting tube 3 is provided between adjacent sampling rods 21, and both ends of the connecting tube 3 are provided with internal threads, and the connecting part is screwed with the connecting tube 3 through the internal threads. A locking mechanism 4 is provided at both ends of the connecting tube 3, and the locking mechanism 4 includes two locking assemblies arranged opposite to each other. By screwing the sampling rod 21 or the connecting tube 3, the connecting part can be moved and switched between a first preset position and a second preset position. When in the first preset position, the connecting part can be locked with the locking assembly, and when in the second preset position, the connecting part can be unlocked with the locking assembly.

[0038] In the geological drilling sampler provided in this embodiment, the vibration device 1 can provide power for the sampling mechanism 2 to drill samples through the drill bit 22 at the end of the sampling mechanism 2. The sampling mechanism 2 includes at least two sampling rods 21. By changing the number of sampling rods 21, different sampling depths can be adapted to improve the versatility of the sampler. When connecting adjacent sampling rods 21, the connecting portion of the sampling rod 21 is screwed into the connecting tube 3. When the connecting portion moves to the first preset position, the locking assembly can lock the connecting portion, thereby ensuring the stability of the connection between adjacent sampling rods 21 and preventing the sampling rod 21 from falling off due to aging of the thread. When dismantling, the connecting tube 3 or the sampling rod 21 is screwed to move the connecting portion to the second preset position. At this time, the connecting portion and the locking assembly are unlocked, so that the adjacent sampling rod 21 can be removed. By screwing the sampling rod 21 or the connecting tube 3, the switching between the locking position and the unlocking position of the connecting portion and the locking assembly can be realized, which is convenient for assembly and disassembly and improves the sampling efficiency.

[0039] It should be noted that the specific number of sampling rods 21 is determined according to actual sampling requirements and is not specifically limited in this embodiment. Further, the vibration direction of the vibration device 1 is opposite to the direction in which the connecting portion is screwed into the connecting tube 3 to prevent the vibration device 1 from affecting the stability of the connection between the sampling rods 21.

[0040] Optionally, see Figure 2 and Figure 3The locking assembly includes a locking block 41 and an elastic member 42. A receiving groove 31 is radially arranged on the inner wall of the connecting tube 3. The receiving groove 31 is arranged one-to-one with the locking assembly. The locking block 41 is slidably arranged in the receiving groove 31. One end of the elastic member 42 is connected to the inner wall of the receiving groove 31, and the other end is connected to the locking block 41. The connecting portion is circumferentially provided with a card slot 212. When in the first preset position, the locking block 41 can be snapped into the card slot 212 under the elastic force of the elastic member 42. The locking block 41 always has a tendency to move in the direction of extending out of the receiving groove 31 under the elastic force of the elastic member 42. When the connecting portion moves to the first preset position, the locking block 41 can be snapped into the card slot 212 under the elastic force of the elastic member 42, thereby locking the connecting portion in the connecting tube 3, ensuring the stability of the connection between the sampling rod 21 and the connecting tube 3, and preventing the sampling rod 21 from falling off. Optionally, the elastic member 42 is a spring.

[0041] Preferably, the locking block 41 is further provided with a limiting block 413, and the inner wall of the connecting cylinder 3 is provided with a limiting groove 32 connected with the receiving groove 31, the limiting groove 32 extends along the sliding direction of the locking block 41, and the length of the limiting groove 32 is less than the length of the receiving groove 31, and the limiting block 413 is inserted into the limiting groove 32 and can slide with the limiting groove 32. The limiting block 413 and the limiting groove 32 cooperate to limit the locking block 41 in the receiving groove 31, and the limiting groove 32 can also limit the sliding stroke of the locking block 41, thereby preventing the locking block 41 from being separated from the receiving groove 31.

[0042] Further, see Figure 3 and Figure 4 The end of the connecting portion is provided with a connected first guide surface 213 and a vertical guide surface 214, and the end of the locking block 41 away from the elastic member 42 is provided with a connected second guide surface 411 and a third guide surface 412, the first guide surface 213 can slide with the second guide surface 411, and the vertical guide surface 214 can slide with the third guide surface 412 to drive the locking block 41 to retract into the accommodating groove 31. When in the first preset position, the vertical guide surface 214 is separated from the third guide surface 412, and the locking block 41 can be inserted into the slot 212. Specifically, in the initial position, the locking block 41 is cantilevered out of the accommodating groove 31 under the elastic force of the elastic member 42; in the process of the connecting portion moving to the first preset position, the first guide surface 213 at the end of the connecting portion first slides in contact with the second guide surface 411 of the locking block 41, so that the locking block 41 is forced to retract into the accommodating groove 31 and compress the elastic member 42 to store energy, and when the vertical guide surface 214 of the connecting portion slides in contact with the third guide surface 412 of the locking block 41, the locking block 41 is completely retracted into the accommodating groove 31; when the connecting portion moves to the first preset position, the vertical guide surface 214 disengages from the third guide surface 412, the locking block 41 loses the stop and extends out of the accommodating groove 31 again under the elastic force of the elastic member 42 and snaps into the snap-in groove 212, thereby locking the connecting portion.

[0043] In this embodiment, the first guide surface 213 and the second guide surface 411 are both configured as arc surfaces, so that the connecting portion and the locking block 41 are in smooth contact, effectively protecting the parts. In other embodiments, the first guide surface 213 and the second guide surface 411 can also be configured as inclined surfaces with the same inclination direction.

[0044] Optionally, see Figure 5 The locking mechanism 4 also includes an unlocking block 43 disposed in the card slot 212. The unlocking block 43 is disposed in a one-to-one correspondence with the locking block 41. The unlocking block 43 is disposed obliquely along the rotation direction of the internal thread. When in the second preset position, the unlocking block 43 can abut against the locking block 41 to drive the locking block 41 to retract into the receiving groove 31 and disengage the locking block 41 from the card slot 212. When the sampler is removed, the connecting portion can move to enable the unlocking block 43 to abut against the locking block 41, thereby driving the locking block 41 to retract into the receiving groove 31, so that the locking block 41 is disengaged from the card slot 212, and unlocking is achieved.

[0045] Preferably, the locking block 41 is provided with a fourth guide surface 431, and when in the second preset position, the fourth guide surface 431 can slide and cooperate with the third guide surface 412 to drive the locking block 41 to retract into the receiving groove 31. Such a configuration can provide a guiding effect for the contact between the unlocking block 43 and the locking block 41, so as to facilitate driving the locking block 41 to retract into the receiving groove 31. Preferably, the fourth guide surface 431 and the third guide surface 412 are both arc surfaces, so that the unlocking block 43 and the locking block 41 can contact smoothly.

[0046] Optionally, see Figure 1 , and also includes a support mechanism 5, the support mechanism 5 includes a support plate 51 and a plurality of adjustment members 52 arranged at intervals, the sampling mechanism 2 is movably arranged on the support plate 51, one end of the adjustment member 52 is movably arranged on the support plate 51, and the other end can be inserted into the underground structure. The adjustment member 52 can fix the support plate 51 on the underground structure, and the depth of the adjustment member 52 inserted into the underground structure can be adjusted by moving the adjustment member 52, so that at different sampling positions, the support plate 51 can remain parallel to the sampling position, so that when the sampling mechanism 2 is arranged on the support plate 51 and drilled into the sampling point, it can remain perpendicular to the sampling point, thereby ensuring the stability of the sampler during sampling, so as to adapt to the sampling requirements of different terrains and prevent the sampling mechanism 2 from deviating from the sampling point. Further, a through hole is provided on the support plate 51, and the sampling mechanism 2 is arranged on the support plate 51 through the above-mentioned through hole.

[0047] Further, the support plate 51 is provided with a plurality of threaded holes, and the plurality of threaded holes are provided in one-to-one correspondence with the plurality of adjusting members 52, and the adjusting members 52 are screwed to the support plate 51 through the threaded holes. The threaded connection is convenient for adjustment and has a stable connection. Preferably, a screwing portion 521 is provided at one end of the adjusting member 52 away from the underground structure, and an operator can screw the adjusting member 52 through the screwing portion 521, which is convenient for installation. Optionally, the adjusting member 52 is a bolt.

[0048] Optionally, the support mechanism 5 further includes a measuring member 53, which is disposed on the support plate 51 and is used to measure the installation angle of the support plate 51. The measuring member 53 can accurately measure the installation angle of the support plate 51. When installing the support mechanism 5, the support plate 51 is fixed at a suitable position by screwing the adjustment member 52, and whether the installation angle of the support plate 51 is parallel to the sampling position is determined based on the data measured by the measuring member 53, and then the sampling mechanism 2 is inserted into the support plate 51 for sampling, thereby ensuring the accuracy of sampling and preventing the sampling mechanism 2 from deviating from the sampling point. In this embodiment, the measuring member 53 is a level.

[0049] Optionally, the drill bit 22 is provided with a collecting hole 221 along the axial direction, and the collecting hole 221 passes through each sampling rod 21. The sample enters the sampling rod 21 through the collecting hole, so that sampling can be performed.

[0050] Optionally, the vibration device 1 is provided with an armrest 11, which can be convenient for the operator to hold, so that the vibration device 1 can be held, which is convenient for sampling. Furthermore, the output end of the vibration device 1 is provided with a connecting joint 12, and the topmost sampling rod 21 is connected to the output end of the vibration device 1 through the connecting joint 12. It should be noted that the connecting joint 12 can also adopt the above-mentioned connecting sleeve provided with the locking mechanism 4.

[0051] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A geological drilling sampler, characterized in that: include: Vibration device (1); A sampling mechanism (2), one end of the sampling mechanism (2) is connected to the vibration device (1), and the other end is connected to a drill bit (22), the sampling mechanism (2) comprises at least two sampling rods (21), and adjacent sampling rods (21) are provided with connecting parts at their ends facing each other; A connecting tube (3), wherein the connecting tube (3) is disposed between adjacent sampling rods (21), both ends of the connecting tube (3) are provided with internal threads, and the connecting portion is threadedly connected to the connecting tube (3) via the internal threads; A locking mechanism (4), wherein both ends of the connecting tube (3) are provided with the locking mechanism (4), and the locking mechanism (4) comprises two locking assemblies arranged opposite to each other, and the connecting portion can be moved and switched between a first preset position and a second preset position by rotating the sampling rod (21) or the connecting tube (3); when the connecting portion is in the first preset position, the connecting portion can be locked with the locking assembly, and when the connecting portion is in the second preset position, the connecting portion can be unlocked with the locking assembly.

2. The geological drilling sampler according to claim 1, characterized in that: The locking assembly comprises a locking block (41) and an elastic member (42); a receiving groove (31) is radially arranged on the inner wall of the connecting cylinder (3); the receiving groove (31) and the locking assembly are arranged one-to-one correspondingly; the locking block (41) is slidably arranged in the receiving groove (31); one end of the elastic member (42) is connected to the inner wall of the receiving groove (31), and the other end is connected to the locking block (41); a clamping groove (212) is circumferentially arranged on the connecting portion; when in the first preset position, the locking block (41) can be clamped into the clamping groove (212) under the elastic force of the elastic member (42).

3. The geological drilling sampler according to claim 2, characterized in that: The end of the connecting portion is provided with a first guide surface (213) and a vertical guide surface (214) connected to each other. The end of the locking block (41) away from the elastic member (42) is provided with a second guide surface (411) and a third guide surface (412) connected to each other. The first guide surface (213) can be slidably matched with the second guide surface (411), and the vertical guide surface (214) can be slidably matched with the third guide surface (412) to drive the locking block (41) to retract into the accommodating groove (31). When in the first preset position, the vertical guide surface (214) is separated from the third guide surface (412), and the locking block (41) can be inserted into the slot (212).

4. The geological drilling sampler according to claim 3, characterized in that: The locking mechanism (4) further comprises an unlocking block (43) arranged in the card slot (212), the unlocking block (43) being arranged in a one-to-one correspondence with the locking block (41), the unlocking block (43) being arranged obliquely along the rotation direction of the internal thread, and when in the second preset position, the unlocking block (43) can abut against the locking block (41) to drive the locking block (41) to retract into the accommodating groove (31) and to enable the locking block (41) to be separated from the card slot (212).

5. The geological drilling sampler according to claim 4, characterized in that: The locking block (41) is provided with a fourth guide surface (431), and when in the second preset position, the fourth guide surface (431) can slidably cooperate with the third guide surface (412) to drive the locking block (41) to retract into the accommodating groove (31).

6. The geological drilling sampler according to claim 2, characterized in that: A limiting block (413) is also provided on the locking block (41); a limiting groove (32) communicating with the accommodating groove (31) is provided on the inner wall of the connecting cylinder (3); the limiting groove (32) extends along the sliding direction of the locking block (41); and the length of the limiting groove (32) is smaller than the length of the accommodating groove (31); the limiting block (413) is inserted into the limiting groove (32) and can be slidably matched with the limiting groove (32).

7. The geological drilling sampler according to claim 1, characterized in that: It also comprises a support mechanism (5), the support mechanism (5) comprising a support plate (51) and a plurality of adjustment members (52) arranged at intervals, the sampling mechanism (2) being movably arranged through the support plate (51), one end of the adjustment member (52) being movably arranged through the support plate (51), and the other end being capable of being inserted into an underground structure.

8. The geological drilling sampler according to claim 7, characterized in that: The support plate (51) is provided with a plurality of threaded holes, the plurality of threaded holes are arranged in one-to-one correspondence with the plurality of adjusting members (52), and the adjusting members (52) are threadedly connected to the support plate (51) through the threaded holes.

9. The geological drilling sampler according to claim 7, characterized in that: The support mechanism (5) further comprises a measuring piece (53), wherein the measuring piece (53) is arranged on the support plate (51), and the measuring piece (53) is used to measure the installation angle of the support plate (51).

10. The geological drilling sampler according to any one of claims 1 to 9, characterized in that: The drill bit (22) is provided with a collecting hole (221) along the axial direction, and the collecting hole (221) passes through each sampling rod (21).

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