A geological exploration layer sampler

Abstract

The present invention relates to the field of geological prospecting technology, and specifically to a geological prospecting stratified sampler, which comprises a machine base, a sampling tube and a cutting and separating mechanism. The sampling tube is vertically placed on the machine base, and can slide in the vertical direction and rotate to sample the ground. The cutting and separating mechanism is configured to cut the soil sample inside the sampling tube along the circumferential direction after the sampling tube samples, so that the soil sample forms an outer layer and an inner layer, and the outer layer and the inner layer are separated at the same time. When in use, the machine base is first driven to move to the sampling area, and then the sampling tube is driven to rotate while the sampling tube is driven to move downward in the vertical direction to sample the ground. After the sampling is completed, the sampling tube is driven to move upward in the vertical direction to pull out the ground, and then the soil sample is cut by the cutting and separating mechanism while the outer layer and the inner layer are separated, and then the inner layer is taken out, which can ensure the authenticity of the soil sample and avoid interference between different soil layers.

Description

Technical Field

[0001] The invention relates to the technical field of geological exploration, in particular to a geological exploration stratified sampler. Background Art

[0002] Geological exploration is an activity widely used in earth science research and resource development. Its main purpose is to conduct detailed investigation and analysis of the geological conditions below the surface through various technical means.

[0003] There are many methods of geological exploration, including drilling, geophysical exploration, geochemical exploration, geological remote sensing, etc. Drilling is the most widely used method in geological exploration. It mainly uses a drilling rig to drill holes in the stratum to obtain deep geological data and conduct sampling and analysis of cores, mineral samples, and soil samples. This method can identify and divide strata and provide reliable data support for subsequent engineering design.

[0004] During the drilling process, a sampler is needed to obtain soil samples. In the relevant technology, for example, Chinese patent CN221006842U discloses a new type of sampler for geological environment monitoring. When in use, the new type of sampler for geological environment monitoring drives the drilling mechanism into the ground for drilling and sampling under the joint action of the first oil cylinder, the limiting pulley, the base plate and the first motor of the driving mechanism. The drill bit can be automatically lowered for drilling and sampling and the drill bit can be pulled out to take out the sample soil. The automated sampling saves manpower. The first oil cylinder extends and contracts to push the first motor to rise and fall vertically along the frame through the limiting pulley, thereby driving the drilling mechanism to rise and fall for sampling.

[0005] Although the above-mentioned new sampler for geological environment monitoring can improve the convenience of geological exploration to a certain extent, it is found in the actual sampling process that due to a certain relative friction between the sampling drill barrel and the internal soil sample, this will cause the soil sample in contact with the inner wall of the sampling drill barrel to shift and deform, thereby affecting the soil layer distribution of the soil sample and causing sample distortion; and when the soil sample is subsequently taken out of the sampling barrel, it will also aggravate the damage to the soil sample, thereby further causing sample distortion and affecting the accuracy of soil layer analysis. Summary of the invention

[0006] Based on this, it is necessary to provide a geological exploration stratified sampler to address the problem that soil samples are easily distorted in the current geological exploration process.

[0007] The above purpose is achieved through the following technical solutions:

[0008] A geological exploration stratified sampler, comprising:

[0009] Machine base;

[0010] A sampling cylinder, which is placed vertically on the base and can slide in a vertical direction and rotate on its own to sample the ground;

[0011] The cutting and separating mechanism is configured to cut the soil sample inside the sampling tube along the circumferential direction after the sampling tube takes samples, so that the soil sample forms an outer layer and an inner layer, and the outer layer and the inner layer are separated at the same time.

[0012] Furthermore, the cutting and separating mechanism includes a track plate and a guide column, the track plate is horizontally inserted inside the sampling tube, and a C-shaped guide groove is arranged on the plate surface of the track plate; the guide column is slidably inserted in the guide groove and can rotate on its own, the outer part of the guide column is sleeved with a cutting part, a diaphragm is wrapped around the guide column, the diaphragm is inserted inside the cutting part, and when in use, the suspended end of the diaphragm extends out from the cutting part, and bypasses the cutting part to clamp the side wall on the side of the sampling tube axis to the inner circumferential wall of the sampling tube.

[0013] Furthermore, the cutting portion is configured as a hollow triangular prism-shaped structure, and the side wall surface facing the axis of the sampling tube is configured as a curved surface.

[0014] Furthermore, the diaphragm has a plurality of partition hole groups, which are arranged at equal intervals along the length direction of the diaphragm, and each of the partition hole groups includes a plurality of partition holes, which are arranged at intervals along the width direction of the diaphragm.

[0015] Furthermore, a serration portion is provided at the bottom of the sampling tube.

[0016] Furthermore, the sawtooth portion is configured as an annular structure and has a plurality of saw teeth arranged along the circumferential direction.

[0017] Furthermore, the sawtooth is in a triangle or trapezoid shape.

[0018] Furthermore, the sampling cylinder is provided with a scale, and the scale extends along the axial direction of the sampling cylinder.

[0019] Furthermore, the geological exploration stratified sampler also includes a ruler, which is sleeved on the sampling tube and can slide along the axial direction of the sampling tube.

[0020] Furthermore, the geological exploration stratified sampler also includes a driving member, and the driving member is configured to provide a driving force for the self-rotation of the sampling tube.

[0021] The beneficial effects of the present invention are:

[0022] When in use, the geological exploration stratified sampler provided by the present invention first drives the machine base to move to the sampling area, then drives the sampling tube to rotate while driving the sampling tube to move downward in the vertical direction to sample the ground; after the sampling is completed, the sampling tube is driven to move upward in the vertical direction to pull out of the ground, and then the soil sample inside the sampling tube is cut along the circumferential direction by the cutting and separating mechanism, so that the soil sample forms an outer layer and an inner layer, and the outer layer and the inner layer are separated at the same time, and then the inner layer is taken out and tested as a soil sample, thereby ensuring the authenticity of the soil sample and avoiding interference between different soil layers, which is beneficial to improving the accuracy of soil layer analysis.

[0023] Furthermore, by setting the cutting portion to a hollow triangular prism structure and the side wall surface facing the axis of the sampling tube to an arc surface, when in use, there is an arc contact between the cutting portion and the soil sample, which reduces interference with the soil sample and allows the inner layer of the soil sample to eventually form a cylindrical structure, thereby saving the amount of diaphragm and reducing the cost of use.

[0024] Furthermore, by providing the diaphragm with a plurality of partition hole groups, when in use, after the diaphragm covers the inner soil sample for a week, the cutting part can cut off the diaphragm through the partition hole groups, thereby improving labor saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a geological exploration stratified sampler provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of a sampling tube of a geological exploration stratified sampler provided by an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the front view structure of a sampling tube of a geological exploration stratified sampler provided by an embodiment of the present invention;

[0028] Figure 4 for Figure 3 Middle AA section view;

[0029] Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure at B in the middle;

[0030] Figure 6 Working principle of the cutting and separating mechanism of the geological exploration layered sampler provided by one embodiment of the present invention when in use Figure 1 ;

[0031] Figure 7 Working principle of the cutting and separating mechanism of the geological exploration layered sampler provided by one embodiment of the present invention when in use Figure 2 ;

[0032] Figure 8 Working principle of the cutting and separating mechanism of the geological exploration layered sampler provided by one embodiment of the present invention when in use Figure 3 ;

[0033] Fig. 9 Working principle of the cutting and separating mechanism of the geological exploration layered sampler provided by one embodiment of the present invention when in use Figure 4 ;

[0034] Fig.10 A schematic diagram of the three-dimensional structure of a sampling barrel of a geological exploration stratified sampler provided in another embodiment of the present invention.

[0035] in:

[0036] 1. Machine base; 11. Sliding frame; 12. Sliding rod; 13. Compression spring; 14. Wheel; 15. Support rod;

[0037] 2. sampling tube; 201. card slot; 21. card block;

[0038] 3. cutting and separating mechanism; 31. track plate; 311. guide groove; 32. guide column; 33. cutting part; 34. diaphragm;

[0039] 4. Drive motor. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned herein, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] like Figures 1 to 9 As shown, a geological exploration stratified sampler provided by an embodiment of the present invention is used for sampling the ground, and is configured to include a machine base 1, a sampling barrel 2 and a cutting and separating mechanism 3. The sampling barrel 2 is vertically placed on the machine base 1, and can slide in the vertical direction and rotate on its own to sample the ground; the cutting and separating mechanism 3 is configured to cut the soil sample inside the sampling barrel 2 along the circumferential direction after the sampling barrel 2 samples, so that the soil sample forms an outer layer and an inner layer, and the outer layer and the inner layer are separated at the same time.

[0044] Specifically in this embodiment, Figure 1 As shown, the base 1 is configured as a frame structure; to facilitate the movement of the base 1, two wheels 14 are symmetrically arranged at the bottom of the base 1; to facilitate the movement of the base 1 to the sampling area for fixation, a support rod 15 is arranged at the bottom of the base 1, and the support rod 15 is configured as an inverted T-shaped structure and is in contact with the ground when in use.

[0045] In order to facilitate the sampling tube 2 to move in the vertical direction, two slide bars 12 are symmetrically arranged on the machine base 1. The slide bars 12 extend in the vertical direction. A slide frame 11 is commonly sleeved on the two slide bars 12. The slide frame 11 is horizontally arranged during installation and can slide along the extension direction of the slide bar 12. The sampling tube 2 is arranged at the bottom of the slide frame 11 during installation.

[0046] More specifically, in order to facilitate limiting the position of the slide 11, elastic clips (not shown) are provided on the side walls of the two slide bars 12 near the top. When in use, the bottom of the slide 11 is pressed against the two elastic clips at the same time, so that the slide 11 can stay near the top of the slide bar 12.

[0047] Initially, the bottom of the slide 11 presses on the two elastic buckles simultaneously.

[0048] When in use, first tilt the base 1 so that the two wheels 14 are in contact with the ground at the same time and the support rod 15 is off the ground, then push the base 1 to move to the sampling area, and then set the base 1 vertically so that the support rod 15 and the two wheels 14 are in contact with the ground.

[0049] Then press down the two elastic buckles, and drive the sampling tube 2 to move downward in the vertical direction through the slide 11, and drive the sampling tube 2 to rotate at the same time to sample the ground; after the sampling is completed, drive the sampling tube 2 to move upward in the vertical direction through the slide 11 to pull out of the ground, and limit the slide 11 again through the elastic buckle, and then cut the soil sample inside the sampling tube 2 along the circumferential direction through the cutting and separating mechanism 3, so that the soil sample forms an outer layer and an inner layer, and at the same time separates the outer layer and the inner layer, and then take out the inner layer and test it as a soil sample.

[0050] Since the outer layer of soil sample in contact with the inner wall of the sampling tube 2 is discarded, the problem of sample distortion caused by a certain relative friction between the sampling tube 2 and the internal soil sample can be avoided; since the cutting and separating mechanism 3 cuts the soil sample inside the sampling tube 2, the inner layer of soil sample can automatically fall out to avoid damage to the soil sample, thereby ensuring the authenticity of the soil sample and avoiding interference between different soil layers, which is beneficial to improving the accuracy of soil layer analysis.

[0051] In a further embodiment, the cutting and separating mechanism 3 is configured to include a track plate 31 and a guide column 32, the track plate 31 is horizontally inserted into the sampling tube 2, and a C-shaped guide groove 311 is provided on the plate surface of the track plate 31; the guide column 32 is slidably inserted into the guide groove 311 and can rotate on its own, the outer portion of the guide column 32 is sleeved with a cutting portion 33, a diaphragm 34 is wrapped around the guide column 32, the diaphragm 34 is inserted into the cutting portion 33, and when in use, one end of the diaphragm 34 is suspended and extends out from the cutting portion 33, and bypasses the cutting portion 33 to clamp the side wall on the side of the axis of the sampling tube 2 to the inner circumferential wall of the sampling tube 2.

[0052] Specifically in this embodiment, Figure 3 As shown, the sampling tube 2 is set as a T-shaped structure, and both ends are open; Figure 2 As shown, the track plate 31 is configured as a circular plate-shaped structure, and is coaxially inserted into the sampling tube 2 during installation, and is fixedly connected to the step surface of the sampling tube 2 by bolts; the guide groove 311 is arranged through the plate surface of the track plate 31, and is coaxially arranged with the track plate 31, and the upper end of the guide groove 311 is arranged as the terminal end, and the lower end is arranged as the starting end; the guide column 32 is configured as a T-shaped structure, and is pressed on the top of the track plate 31 through the step surface; the cutting portion 33 is located below the track plate 31, and the top end is pushed on the bottom of the track plate 31, and the bottom end is arranged in the air, and an opening is arranged on the side wall of the cutting portion 33, and the opening is convenient for extending the diaphragm 34.

[0053] To facilitate fixing the suspended end of the diaphragm 34, Figure 5As shown, a mounting groove is provided on the inner wall of the sampling tube 2 and on the right side of the starting end of the guide groove 311. A clamping block 21 is inserted into the mounting groove. The clamping block 21 can slide elastically to press on the groove wall of the mounting groove.

[0054] Before use, Figure 4 As shown, firstly, the suspended end of the diaphragm 34 is extended from the opening, bypasses the cutting portion 33 and is inserted into the mounting groove toward the side wall on the axis side of the sampling tube 2, and is clamped and fixed by the clamping block 21, and then sampling is performed.

[0055] After sampling is completed, first remove the sampling tube 2, and then Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the guide column 32 is driven to move along the guide groove 311 to move from the starting end to the ending end; during the movement of the guide column 32, the cutting portion 33 cuts the soil sample into an outer layer and an inner layer along the circumferential direction, and because the suspended end of the diaphragm 34 is clamped by the clamping block 21, the diaphragm 34 wrapped around the guide column 32 can be gradually released to simultaneously cover the inner layer along the circumferential direction.

[0056] Then rotate the guide column 32 to disconnect the diaphragm 34; then drive the guide column 32 to move in the opposite direction along the guide groove 311 to move from the end end to the starting end. Under the push of the cutting part 33, the suspended end of the diaphragm 34 can be pulled out of the installation groove and covered on the outside of the inner layer.

[0057] In a further embodiment, the cutting portion 33 is configured as a hollow triangular prism structure, and the side wall surface facing the axis of the sampling tube 2 is configured as a curved surface.

[0058] Specifically in this embodiment, Figure 5 As shown, the cross-sectional shape of the triangular prism-shaped structure is set to an acute triangle, and the opening is opened at the angle between the two left sides, and the arc surface is set at the side wall corresponding to the side located on the upper side.

[0059] When in use, the side wall surface of the cutting portion 33 facing the axis of the sampling tube 2 is set to an arc surface so that there is an arc contact between the cutting portion 33 and the soil sample, which reduces interference with the soil sample and allows the inner layer of the soil sample to eventually form a cylindrical structure, thereby saving the amount of the diaphragm 34 and reducing the cost of use.

[0060] In other embodiments, in order to improve the effort-saving when cutting the diaphragm 34, the diaphragm 34 is configured to have multiple partition hole groups, and the multiple partition hole groups are arranged at equal intervals along the length direction of the diaphragm 34, each partition hole group includes multiple partition holes, and the multiple partition holes are arranged at intervals along the width direction of the diaphragm 34.

[0061] When in use, after the diaphragm 34 covers the inner soil sample for one week, the cutting portion 33 can cut off the diaphragm 34 through the isolation hole group.

[0062] In other embodiments, in order to improve the sampling efficiency, a serration portion is provided at the bottom of the sampling tube 2 .

[0063] During use, when the sampling tube 2 is in contact with the ground in a rotating manner, the serrated portion can quickly cut the soil, thereby reducing the time for the sampling tube 2 to be inserted into the ground and improving the sampling efficiency.

[0064] In a further embodiment, the sawtooth portion is configured as an annular structure and has a plurality of saw teeth arranged along the circumferential direction.

[0065] In a further embodiment, Fig.10 As shown, the shape of the sawtooth can be set to be a trapezoid.

[0066] In other embodiments, the shape of the sawtooth may also be set to be a triangle.

[0067] In other embodiments, in order to facilitate checking the insertion depth of the sampling tube 2 and improve the sampling accuracy, a scale is provided on the sampling tube 2 , and the scale extends along the axial direction of the sampling tube 2 .

[0068] During use, the user can judge the insertion depth of the sampling tube 2 by the scale so as to accurately obtain soil at a target depth.

[0069] In a further embodiment, in order to improve the accuracy of judging the insertion depth of the sampling tube 2 into the ground, the geological exploration stratified sampler is configured to also include a ruler, which is sleeved on the sampling tube 2 and can slide along the axial direction of the sampling tube 2.

[0070] Specifically in the embodiment, the scale can be locked on the sampling tube 2 through friction contact between the scale and the sampling tube 2 .

[0071] When in use, first slide the ruler to the target scale, and then drive the sampling tube 2 to be inserted into the ground to the ruler, so that the user can more accurately judge the insertion depth of the sampling tube 2, thereby obtaining soil with a more accurate depth.

[0072] In other embodiments, the geological prospecting stratified sampler is configured to further include a driving member, and the driving member is configured to provide a driving force for the sampling tube 2 to rotate.

[0073] Specifically in this embodiment, the driving member can be configured as a driving motor 4, such as Figure 1 As shown, the driving motor 4 is arranged on the top of the slide 11 during installation, and the motor shaft is arranged downward in the vertical direction and is detachably connected to the top of the sampling tube 2.

[0074] More specifically, in order to facilitate the realization of a detachable connection between the motor shaft of the driving motor 4, as Figure 2 As shown, a plurality of L-shaped slots 201 are provided on the top inner circumferential wall of the sampling tube 2, and a number of latching protrusions equal to the number of the slots 201 are circumferentially arranged on the bottom outer circumferential wall of the motor shaft of the driving motor 4, and the latching protrusions can be latched in the slots 201 one by one.

[0075] It is understandable that the sampling tube 2 can also be detachably connected to the motor shaft of the driving motor 4 by means of bolts.

[0076] In other embodiments, in order to improve labor saving, a compression spring 13 is sleeved on each slide rod 12 , and the compression spring 13 is located at the bottom of the slide rod 12 .

[0077] During the movement of the slide 11, when the slide 11 moves downward and presses on the compression spring 13, as the slide 11 continues to move downward, the compression spring 13 is compressed and accumulates force; when the sampling is completed, the slide 11 is driven to move upward, and the compression spring 13 is released so that a large lifting force is not required to lift the slide 11.

[0078] In other embodiments, it may also be configured as a driving cylinder to provide a driving force for the slide 11 to slide in the vertical direction.

[0079] It can be understood that the driving cylinder can be configured as any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0080] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A geological exploration stratified sampler, characterized in that: The geological exploration stratified sampler comprises: Machine base; A sampling cylinder, which is placed vertically on the base and can slide in a vertical direction and rotate on its own to sample the ground; A cutting and separating mechanism, wherein the cutting and separating mechanism is configured to cut the soil sample inside the sampling tube along the circumferential direction after the sampling tube has taken samples, so that the soil sample forms an outer layer and an inner layer, and the outer layer and the inner layer are separated at the same time, wherein the cutting and separating mechanism comprises a track plate and a guide column, wherein the track plate is horizontally inserted inside the sampling tube, and a C-shaped guide groove is arranged on the plate surface of the track plate; the guide column is slidably inserted in the guide groove and can rotate on its own, a cutting portion is sleeved on the outside of the guide column, a diaphragm is wound on the guide column, the diaphragm is inserted inside the cutting portion, and the diaphragm When in use, the suspended end extends out from the cutting part, bypasses the side wall of the cutting part facing the axis of the sampling tube, and is clamped on the inner circumferential wall of the sampling tube. The cutting part is arranged as a hollow triangular prism structure, and the side wall surface facing the axis of the sampling tube is arranged as an arc surface. The diaphragm has a plurality of partition hole groups, and the plurality of partition hole groups are arranged at equal intervals along the length direction of the diaphragm. Each of the partition hole groups includes a plurality of partition holes, and the plurality of partition holes are arranged at intervals along the width direction of the diaphragm. When in use, after the diaphragm covers the inner soil sample for one week, the cutting part can disconnect the diaphragm through the partition hole group.

2. The geological exploration stratified sampler according to claim 1, characterized in that: The bottom of the sampling tube is provided with a serration portion.

3. The geological exploration stratified sampler according to claim 2, characterized in that: The sawtooth portion is configured as an annular structure and has a plurality of saw teeth arranged along the circumferential direction.

4. The geological exploration stratified sampler according to claim 3, characterized in that: The sawtooth is in a triangle or trapezoid shape.

5. The geological exploration stratified sampler according to claim 1, characterized in that: The sampling cylinder is provided with a scale, and the scale extends along the axial direction of the sampling cylinder.

6. The geological exploration stratified sampler according to claim 5, characterized in that: The geological exploration stratified sampler also includes a ruler, which is sleeved on the sampling tube and can slide along the axial direction of the sampling tube.

7. The geological exploration stratified sampler according to claim 1, characterized in that: The geological exploration stratified sampler further comprises a driving member, which is configured to provide a driving force for the self-rotation of the sampling tube.

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