CN116337516A - Geological detection sample core sampling device and method - Google Patents
Geological detection sample core sampling device and method Download PDFInfo
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- CN116337516A CN116337516A CN202310618925.1A CN202310618925A CN116337516A CN 116337516 A CN116337516 A CN 116337516A CN 202310618925 A CN202310618925 A CN 202310618925A CN 116337516 A CN116337516 A CN 116337516A
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- 238000005070 sampling Methods 0.000 title claims abstract description 51
- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 59
- 239000002689 soil Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000004323 axial length Effects 0.000 claims abstract description 3
- 238000007790 scraping Methods 0.000 claims description 60
- 239000007788 liquid Substances 0.000 claims description 26
- 230000000712 assembly Effects 0.000 claims description 12
- 238000000429 assembly Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 239000011435 rock Substances 0.000 description 7
- 238000005527 soil sampling Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a geological detection sample core sampling device and a geological detection sample core sampling method, and relates to the field of geological detection, wherein the geological detection sample core sampling device comprises a base and a sleeve, a base main body is a hollow column, a base sleeve is arranged on the inner side of the base main body, threads are arranged on the outer side of the base sleeve and connected with the sleeve, a digging opening is formed in the side wall of the base sleeve, a positioning fixing sleeve is coaxially inserted into the sleeve, and the geological detection sample core sampling device further comprises a transmission rod, and the axial length of the transmission rod is not less than that of the fixing sleeve; the soil sample collecting device comprises a soil sample collecting device, a scraper assembly and a control device, wherein the scraper assembly is used for collecting a soil sample; the scraper component comprises a scraper shell, a cutter transmission part, a scraper connecting shaft and a cutter; the scraper shell is a cylindrical barrel, and the top end of the barrel is coaxial with the bottom end of the fixed sleeve and can be fixed in a detachable mode. The invention has the advantages that: the connection of a plurality of cutters is convenient, the sampling at different heights is realized, the transverse sampling is convenient, the sampling efficiency is improved, and the sampling quantity can be adjusted by controlling the water pressure.
Description
Technical Field
The invention relates to the field of geological detection, in particular to a geological detection sample core sampling device and method.
Background
The utility model discloses a rock soil sampling device is used in geotechnical engineering reconnaissance as shown in patent number 2020102329061, through the blade rotation, rises the soil sample to the storage inslot, but can be because of the influence of factors such as soil property, soil condition at the in-process of taking a sample, like the soil property is hard smooth, can make the sampling pit inner wall continuous smooth inseparable after the sleeve inserts, and the soil sample that supplies the blade to carry in the sleeve is few like this, and the sample volume is uncontrollable, is a passive sampling mode. In addition, the sleeve is inserted into the soil layer, the upper soil layer can be extruded to the lower soil layer, the soil sample corresponding to the actual soil layer height is difficult to accurately extract in the prior art, and if the sample amount of the sample per se obtained at the position of 50 cm is small, a part of the sample can be a sample sliding at the position of 30-40 cm at the upper layer.
Disclosure of Invention
The invention aims to provide a geological detection sample core sampling device and a geological detection sample core sampling method, which solve the technical problems that the sampling amount is uncontrollable, the transverse sample extraction is difficult and the like in the using process of the existing rock and soil sampling device, and realize the technical effects of controllable sample extraction amount and transverse sample extraction in the rock and soil sampling process.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
a geological detection sample core sampling device comprises a base and a sleeve;
the base is provided with a platform and a base sleeve, a through hole is formed in the center of the platform, and the top end of the base sleeve is coaxially fixed with the through hole;
the sleeve is detachably and coaxially fixedly connected with the base sleeve;
the sleeve is coaxially inserted into the sleeve to fix the sleeve,
the transmission rod penetrates through the fixed sleeve and stretches into the sleeve;
the soil sample collecting device comprises a soil sample collecting device, a scraper assembly and a control device, wherein the scraper assembly is used for collecting a soil sample;
the scraper component comprises a scraper shell, a cutter transmission part, a scraper connecting shaft and a cutter;
the scraper shell is a cylindrical barrel, the top end of the barrel and the bottom end of the fixed sleeve are coaxially and detachably fixed, the outer diameter of the barrel is not smaller than the outer diameter of the fixed sleeve, and meanwhile, the outer diameter of the barrel is 8-9 mm smaller than the inner diameter of the sleeve; the bottom surface of the cutter shell is closed;
the cutter transmission part comprises a cutter connecting seat, a transmission gear and a rotating sleeve;
the top end or the bottom end of the cutter connecting seat is fixedly connected with the inner wall of the cutter shell;
the rotating sleeves are arranged on the cutter connecting seats in a one-to-one correspondence manner, and external gears are arranged outside the rotating sleeves;
the rotating shaft of the transmission gear is fixed on the bottom surface of the cutter shell, and the axis of the rotating shaft is parallel to the axis of the cutter shell;
the transmission gear is meshed with the external gear of the rotating sleeve;
one cutter connecting seat, a corresponding rotating sleeve and a transmission gear are combined into a group, and one scraper component comprises three groups of cutter connecting seats, and the corresponding rotating sleeve and the transmission gear; the connecting lines of the fixing points of the three cutter connecting seats and the inner wall of the cutter shell are inscribed equilateral triangles with circular cross sections of the cutter shell;
the scraper connecting shaft is used for providing power for the cutter, the outer wall of the scraper connecting shaft is meshed with the transmission gear, and the scraper connecting shaft comprises a shaft body and a groove;
the shaft body is coaxially and rotatably connected with a through hole on the bottom surface of the cutter shell;
the groove is positioned at the top end of the shaft body; the bottom end of the transmission rod is provided with a plug corresponding to the groove, so that the scraper connecting shaft can be driven to rotate when the transmission rod rotates;
the cutter is used for scraping soil samples and comprises a scraping plate and a bearing plate;
the scraping plate is an arc-shaped plate, and the cutter shell is provided with a material taking channel for the scraping plate to enter and exit; one end of the scraping plate is fixed on the rotating sleeve, and the scraping plate rotates along with the rotating sleeve, so that the material taking channel can be completely closed; the distance between the free end of the scraping plate after being opened and the cutter shell is within the range of 5-15 mm;
the scraping plate can extend out of the digging hole on the sleeve, and the sleeve can drive the fixed sleeve to rotate when rotating;
the bearing plate is fixed at the bottom side of the scraping plate and is used for bearing scraped soil samples.
As an improvement, the sleeve comprises a sleeve handle and a fixing groove, wherein the sleeve handle is square in shape, can be detachably fixed on two sides of the upper end of the sleeve, and is symmetrically arranged.
As an improvement, the fixing groove is an axial groove on the inner side surface of the sleeve; the upper end face of the fixed groove is flush with the upper end face of the sleeve, and is provided with an opening; the inside of fixed slot is equipped with the stopper that matches with the external form, the both sides of fixed sleeve are located to the stopper for inject fixed sleeve's height.
As an improvement, the transmission rod further comprises a rotary handle and a bulge, wherein the rotary handle is a circular ring handle and is coaxially fixed on the upper end surface of the transmission rod; the shape of the bulge is cross; a groove corresponding to the protrusion shape is arranged on the upper end surface of the scraper connecting shaft, and the shape of the groove is matched with the protrusion; when the bulge is inserted into the groove, the rotating handle rotates to drive the scraper connecting shaft to rotate.
As an improvement, the scraper assemblies are multiple, two adjacent scraper assemblies are connected and driven through the scraper connecting shafts, and the two adjacent scraper connecting shafts synchronously rotate through splicing;
the shells of two adjacent scraper assemblies are fixed through a connecting sleeve.
As an improvement, a bearing sleeve is arranged at one part of the scraper component, which is close to the bottom of the base sleeve;
the bearing sleeve shell is cylindrical, is provided with openings at two ends, and is detachably and fixedly connected with a scraper component shell at the lowest end; the lower end surface of the cylindrical barrel of the bearing sleeve is fixedly provided with a bearing fixing seat;
the upper end face of the bearing fixing seat coaxially rotates to fix a rotating shaft, the bottom end of a scraper connecting shaft at the lowest end of the rotating shaft is inserted, and the rotating shaft and the scraper connecting shaft synchronously rotate and simultaneously support the scraper connecting shaft.
As an improvement, one side of the scraping plate far away from the bearing plate is provided with a limiting block A at a position close to the rotating sleeve, the shape of the limiting block A is long-strip-shaped, and one side of the limiting block A is provided with an arc chamfer;
a limiting block B is arranged on one side, close to the scraper connecting shaft, of the limiting block A, the shape of the limiting block B is a bar, the cross section of the limiting block B is consistent with that of the limiting block A, and the limiting block B is connected with a connecting seat;
the limiting block A and the limiting block B are used for abutting the scraping plate to limit the maximum opening and closing angle of the scraping plate.
As an improvement, the cutter type cutting machine also comprises liquid storage bags, wherein the number of the liquid storage bags is consistent with that of the cutters, one side of each liquid storage bag is fixed in the corresponding storage groove, and the bearing plate can extend into the lower side of each liquid storage bag;
the liquid storage bag is filled with water and drained through a liquid pipeline, and the pipeline penetrates out of the top end of the sleeve from a gap between the fixed sleeve and the sleeve.
As an improvement, the part of the liquid pipeline, which is positioned outside the sleeve, is vertically arranged, and scales are marked on the pipeline.
A geological detection sample core sampling method uses the geological detection sample core sampling device, and the sampling steps are as follows:
step one, fixing a scraper component and a fixed sleeve, and putting the scraper component and the fixed sleeve into the sleeve;
step two, a transmission rod penetrates through the fixed sleeve and is inserted into the groove, and the preset angle is rotated to enable the scraping plate to extend out of the digging hole;
step three, rotating the sleeve to drive the plate taking and soil sample scraping;
step four, rotating the transmission rod, and retracting the scraping plate;
and fifthly, the fixed sleeve is communicated with the scraper component to lift the sleeve together, and the transmission rod is rotated to enable the scraping plate to extend out, so that the sample can be obtained.
The beneficial effects of the invention are as follows: the utility model discloses a convenient connection of a plurality of cutters has been made things convenient for through setting up fixed sleeve and cutter connecting seat to the rock soil sampling operation of convenient not co-altitude has made things convenient for horizontal sample through setting up the cover of rotating and scraping the board, has improved sampling efficiency, conveniently adjusts the sample volume through controlling water pressure through setting up reservoir and mouth of a river.
Drawings
FIG. 1 is a sectional view showing a combined use state of a geological detection sample core sampling device according to the present invention;
FIG. 2 is a top view of a partially closed condition of the doctor assembly;
FIG. 3 is a top view of a partially open doctor assembly;
FIG. 4 is a top view of the scraper assembly in an excavated state;
FIG. 5 is a top view of the scraper assembly in a stored state;
FIG. 6 is a schematic view showing the unfolded state of the portion A in FIG. 1;
fig. 7 is an enlarged schematic view of the portion B in fig. 1.
Reference numeral control table:
100. a base; 101. a thread; 110. a base sleeve; 200. a sleeve; 201. a sleeve handle; 202. digging a digging hole; 203. a fixing groove;
300. a fixed sleeve; 301. rotating the handle; 302. a connecting sleeve; 310. a transmission rod; 311. a protrusion; 320. a support sleeve; 321. the bearing fixing seat;
400. a scraper assembly; 410. a cutter transmission part; 411. a cutter connecting seat; 412. a transmission gear; 413. a rotating sleeve; 414. a limiting block A; 415. a limiting block B; 416. a fixing bolt; 420. a reservoir; 421. a water gap; 422. a storage tank; 423. a liquid conduit;
430. a scraper connecting shaft; 431. a groove; 440. a cutter; 441. a scraping plate; 442. and a supporting plate.
Detailed Description
In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Example 1
As shown in fig. 1 to 3, a geological test sample core sampling device includes a base 100 and a sleeve 200;
the base 100 is provided with a platform and a base sleeve 110, a through hole is formed in the center of the platform, and the top end of the base sleeve 110 is coaxially fixed with the through hole;
the sleeve 200 is detachably and coaxially fixedly connected with the base sleeve 110;
the sleeve 200 is coaxially inserted with a positioning and fixing sleeve 300,
the transmission rod 310 is further included, the axial length of the transmission rod 310 is not smaller than that of the fixed sleeve 300, and the transmission rod 310 penetrates through the fixed sleeve 300 and stretches into the sleeve 200;
also included is a scraper assembly 400, the scraper assembly 400 for collecting a soil sample;
the scraper shell is a cylindrical barrel, the top end of the barrel is coaxial with the bottom end of the fixed sleeve 300 and can be detachably fixed, the outer diameter of the barrel is not smaller than the outer diameter of the fixed sleeve 300, and meanwhile, the outer diameter of the barrel is 8-9 mm smaller than the inner diameter of the sleeve 200; the bottom surface of the cutter shell is closed;
the cutter transmission part 410 comprises a cutter connecting seat 411, a transmission gear 412 and a rotating sleeve 413;
the top end or the bottom end of the cutter connecting seat 411 is fixedly connected with the inner wall of the cutter shell;
the rotating sleeves 413 are rotatably sleeved on the cutter connecting seats 411 in one-to-one correspondence, and external gears are arranged outside the rotating sleeves 413;
the rotating shaft of the transmission gear 412 is fixed on the bottom surface of the cutter shell, and the axis of the rotating shaft is parallel to the axis of the cutter shell;
the transmission gear 412 is meshed with an external gear of the rotating sleeve 413;
one of the cutter attachment seats 411 and the corresponding rotating sleeve and transmission gear 412 are a set, and one scraper assembly 400 comprises three sets of cutter attachment seats 411 and their corresponding rotating sleeve 413 and transmission gear 412; the fixed point connecting lines of the three cutter connecting seats 411 and the inner wall of the cutter shell are inscribed equilateral triangles with circular cross sections of the cutter shell;
the scraper connecting shaft 430 is used for providing power for the cutter, the outer wall of the scraper connecting shaft is meshed with the transmission gear 412, and the scraper connecting shaft 430 comprises a shaft body and a groove 431;
the shaft body is coaxially and rotatably connected with a through hole on the bottom surface of the cutter shell;
the groove 431 is positioned at the top end of the shaft body; the bottom end of the transmission rod 310 is provided with a plug corresponding to the groove 431, so that the scraper connecting shaft 430 can be driven to rotate when the transmission rod 310 rotates;
the cutter 440 is used for scraping soil samples, and the cutter 440 comprises a scraping plate 441 and a bearing plate 442;
the scraping plate 441 is an arc plate, and the cutter housing is provided with a material taking channel for the scraping plate 441 to enter and exit; one end of the scraping plate 441 is fixed on the rotating sleeve 413, and the scraping plate 441 rotates along with the rotating sleeve 413, so that the material taking channel can be completely closed; the distance between the free end of the scraping plate 441 after being opened and the cutter shell is within the range of 5-15 mm;
the scraping plate 441 can extend out of the digging hole 202 on the sleeve, and the sleeve 200 can rotate to drive the fixed sleeve 300 to rotate;
the supporting plate 442 is fixed to the bottom side of the scraping plate 441, and is used for receiving scraped soil samples.
As an improvement, the sleeve 200 includes a sleeve handle 201 and a fixing groove 203, where the sleeve handle 201 is square in shape, and is detachably fixed on two sides of the upper end surface of the sleeve 200, and symmetrically arranged.
The core sampling method of the geological detection sample uses the core sampling device of the geological detection sample, and the sampling steps are as follows:
step one, the scraper assembly 400 is fixed with the fixed sleeve 300 and put into the sleeve 200;
step two, the transmission rod 310 is inserted into the groove 431 through the fixed sleeve 300, and the scraping plate 441 is rotated by a preset angle to extend out of the digging hole 202;
step three, rotating the sleeve 200 to drive the scraping plate 441 to scrape soil samples;
step four, rotating the transmission rod 310 to retract the scraping plate 441;
and fifthly, the fixed sleeve 300 is communicated with the scraper assembly 400 to lift the sleeve 200 together, and the transmission rod 310 is rotated to extend the scraping plate 441, so that a sample can be obtained.
When the scraper assembly is used, holes are drilled in the vertical direction at a target position, the depth of 3 to 5 cm is prolonged to serve as a storage groove for impurities, then the base 100 is installed at a hole, the base sleeve 110 and the base 100 are fixed through threads 101, then the scraper assembly 400 and the fixed sleeve 300 are connected, meanwhile, a water pipe and a water gap 421 are connected, then the scraper assembly is installed on the inner side of the sleeve 200, at the moment, the rotating handle 301 is rotated to drive the transmission rod 310 to rotate, then the cutter connecting seat 411 is driven to enable the cutter to be unfolded outwards at the digging hole 202, then the sleeve handle 201 is rotated to enable the sleeve 200 to drive the fixed sleeve 300 to rotate in the hole, at the moment, the scraping plate 441 scrapes a sample, and the scraping plate 441 is reversely rotated through the rotating handle 301 to enable the scraping plate 441 to be retracted, so that sampling is achieved.
Through this kind of sampling mode, can effectively scrape smooth inseparable geotechnical layer, also can improve single geotechnical sample volume simultaneously, improve sampling efficiency, also can carry out repeated sample many times in a sampling hole simultaneously. The prior art operation can only passively receive the dropped soil sample, and basically can only sample once. And the channel sample will contain an upper layer of soil sample that does not belong to the sampling point. By sampling multiple times it can be ensured that the sample at the sampled location does belong to the sample at that location.
Example two
In practical application, it is found that, in order to extract a soil sample at a certain height at a fixed point, the position of the sampling port can be matched only by determining the pit digging depth by using the scheme of the embodiment in the prior art. This is very difficult with the prior art (patent No. 2020102329061) where a pit is essentially only once removed because it is self-propelled by the soil sample to be transported to the sample storage well. In the first embodiment, although sampling can be performed multiple times, the depth of the pit and the position of the sampling tool are calculated, and the soil sample at the required position can be obtained corresponding to the depth of the pit and the position of the sampling tool. Thus, the scheme of the first embodiment is further modified as shown in fig. 1 to 5.
The sleeve 200 comprises a sleeve handle 201 and a fixing groove 203, wherein the sleeve handle 201 is square in shape, can be detachably fixed on two sides of the upper end face of the sleeve 200, and is symmetrically arranged.
The fixing groove 203 is an axial groove on the inner side surface of the sleeve 200; the upper end surface of the fixing groove 203 is flush with the upper end surface of the sleeve 200 and is open; the fixing groove 203 is provided with a stopper matching with the external shape, and the stoppers are disposed on two sides of the fixing sleeve 300, for limiting the height of the fixing sleeve 300.
The transmission rod 310 further comprises a rotary handle 301 and a protrusion 311, wherein the rotary handle 301 is a circular ring handle and is coaxially fixed on the upper end surface of the transmission rod 310; the shape of the bulge 311 is cross; a groove 431 corresponding to the shape of the protrusion 311 is arranged on the upper end surface of the scraper connecting shaft 430, and the shape of the groove 431 is matched with that of the protrusion 311; when the protrusion 311 is inserted into the groove 431, the rotation of the rotating handle 301 can drive the scraper connecting shaft 430 to rotate.
The scraper assemblies 400 are multiple, two adjacent scraper assemblies 400 are connected and driven through scraper connecting shafts 430, the two adjacent scraper connecting shafts 430 are synchronously rotated through plugging, and the shells of the two adjacent scraper assemblies 400 are fixed through connecting sleeves 302.
A supporting sleeve 320 is arranged on one side of the scraper assembly 400 near the bottom of the base sleeve 110, and the outer shell of the supporting sleeve 320 is a cylindrical shape with openings at two ends and is detachably and fixedly connected with the outer shell of the scraper assembly 400 at the lowest end; the lower end surface of the cylindrical barrel of the bearing sleeve 320 is fixed with a bearing fixing seat 321, the upper end surface of the bearing fixing seat 321 coaxially rotates to fix a rotating shaft, the bottom end of a scraper connecting shaft 430 at the lowest end of the rotating shaft is inserted, and the rotating shaft and the scraper connecting shaft 430 synchronously rotate and simultaneously support the scraper connecting shaft 430.
When assembling a plurality of scraper assemblies 400, a first scraper assembly 400 is connected with a fixed sleeve 300, a transmission rod 310 is connected with a scraper connecting shaft 430 in the scraper assembly 400 in an inserted manner, the transmission rod is fixedly connected with a sleeve 200 through a fixed groove 203, then one end of the scraper assembly 400, which is far away from the fixed sleeve 300, is connected with a connecting sleeve 302 in an inserted manner, meanwhile, the scraper connecting shaft 430 of the scraper assembly 400 is connected with the scraper connecting shaft 430 in the inner side of the connecting sleeve 302 in an inserted manner, then another scraper assembly 400 is continuously installed at one end of the connecting sleeve 302, after a plurality of connection is carried out, the scraper assembly 400 at the lowest end is connected with a supporting sleeve 320, finally a base sleeve 110 with a proper length is connected with the base 100, and finally the sleeve 200 is connected and fixed with the base sleeve 110.
By combining and connecting the plurality of scraper assemblies 400 with the connecting sleeve 302, the set height of the scraper assemblies 400 can be defined, and the sampling of discontinuous rock and soil layers is facilitated, so that rock and soil sampling operation can be performed at a specified depth.
Example III
The improvement is made because the inability to directly visualize the amount of sample in the pit results in the device being prone to excessive extraction, which results in the scraping plate 441 being unable to close and the entire device being unable to be removed.
The scraping plate 441 is far away from one side of the supporting plate 442, a limiting block A414 is arranged at a position close to the rotating sleeve 413, the limiting block A414 is long-strip-shaped, and one side of the limiting block A414 is provided with an arc chamfer;
a limiting block B415 is arranged on one side, close to the scraper connecting shaft 430, of the limiting block A414, the shape of the limiting block B415 is a bar, the cross section of the limiting block B415 is consistent with that of the limiting block A414, and the limiting block B415 is connected with the cutter connecting seat 411;
the limiting block a414 and the limiting block B are used for abutting the scraping plate 441 to limit the maximum opening and closing angle of the scraping plate 441.
The tool holder also comprises liquid storage bags 420, the number of the liquid storage bags 420 is consistent with that of the tools, one side of each liquid storage bag 420 is fixed in the corresponding storage groove 422, and the supporting plates 442 can extend into the lower side of each liquid storage bag 420;
when the device is used, the fixing bolt 416 at the upper end of the rotating sleeve 413 facilitates the fixed installation of the scraping plate 441, the water pipe is arranged at the upper end of the water gap 421, the liquid level display device is installed later, after the scraping plate 441 is unfolded, the liquid storage bag 420 is enlarged by injecting water into the water gap 421, at the moment, part of soil can be blocked in the process of rotary digging and can leak out to the outer side of the device along with rotation, an operator can judge whether the scraping plate 441 scrapes the soil by observing the change of the liquid level in the liquid pipeline 423, in the process of accommodating the scraping plate 441, a rock and soil sample extracted in the storage groove 422 can extrude the liquid in the liquid storage bag 420 outwards, at the moment, the operator can judge whether the scraping plate 441 is completely accommodated and folded through the discharged liquid amount, the scraping plate 441 is prevented from being clamped at the digging opening 202, and the device can be conveniently and subsequently taken out from the base sleeve 110.
In addition, the water injection quantity can be controlled to control the quantity of single sampling, and the sampling quantity can be observed through the scale of the water pipe positioned outside.
The above description is illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, but is to be accorded the full scope of the appended claims.
Claims (10)
1. A geological detection sample core sampling device comprises a base (100) and a sleeve (200);
the base (100) is provided with a platform and a base sleeve (110), a through hole is formed in the center of the platform, and the top end of the base sleeve (110) is coaxially fixed with the through hole;
the sleeve (200) is detachably, coaxially and fixedly connected with the base sleeve (110);
the sleeve (200) is internally and coaxially inserted with a positioning and fixing sleeve (300), which is characterized in that,
the transmission rod (310) is not smaller than the axial length of the fixed sleeve (300), and the transmission rod (310) penetrates through the fixed sleeve (300) and stretches into the sleeve (200);
also comprises a scraper assembly (400), wherein the scraper assembly (400) is used for collecting soil samples;
the scraper assembly (400) comprises a scraper housing, a cutter transmission (410), a scraper connecting shaft (430) and a cutter (440);
the scraper shell is a cylindrical barrel, the top end of the barrel is coaxial with the bottom end of the fixed sleeve (300) and can be detachably fixed, the outer diameter of the barrel is not smaller than the outer diameter of the fixed sleeve (300), and meanwhile, the outer diameter of the barrel is 8-9 mm smaller than the inner diameter of the sleeve (200); the bottom surface of the cutter shell is closed;
the cutter transmission part (410) comprises a cutter connecting seat (411), a transmission gear (412) and a rotating sleeve (413);
the top end or the bottom end of the cutter connecting seat (411) is fixedly connected with the inner wall of the cutter shell;
the rotating sleeves (413) are rotatably sleeved on the cutter connecting seats (411) in one-to-one correspondence, and external gears are arranged outside the rotating sleeves (413);
the rotating shaft of the transmission gear (412) is fixed on the bottom surface of the cutter shell, and the axis of the rotating shaft is parallel to the axis of the cutter shell;
the transmission gear (412) is meshed with an external gear of the rotating sleeve (413);
one of the cutter connection seats (411) and the corresponding rotating sleeve (413) and the transmission gear (412) are in a group, and one scraper assembly (400) comprises three groups of cutter connection seats (411) and the corresponding rotating sleeve (413) and the transmission gear (412); the fixed point connecting lines of the three cutter connecting seats (411) and the inner wall of the cutter shell are inscribed equilateral triangles with circular cross sections of the cutter shell;
the scraper connecting shaft (430) is used for providing power for the cutter, the outer wall of the scraper connecting shaft is meshed with the transmission gear (412), and the scraper connecting shaft (430) comprises a shaft body and a groove (431);
the shaft body is coaxially and rotatably connected with a through hole on the bottom surface of the cutter shell;
the groove (431) is positioned at the top end of the shaft body; the bottom end of the transmission rod (310) is provided with a plug corresponding to the groove (431), so that the scraper connecting shaft (430) can be driven to rotate when the transmission rod (310) rotates;
the cutter (440) is used for scraping soil samples, and the cutter (440) comprises a scraping plate (441) and a bearing plate (442);
the scraping plate (441) is an arc-shaped plate, and the cutter shell is provided with a material taking channel for the scraping plate (441) to enter and exit; one end of the scraping plate (441) is fixed on the rotating sleeve (413), and the scraping plate (441) rotates along with the rotating sleeve (413) to completely close the material taking channel; the distance between the free end of the scraping plate (441) and the cutter shell after being opened is within the range of 5-15 mm;
the scraping plate (441) can extend out of the digging hole (202) on the sleeve, and the sleeve (200) can rotate to drive the fixed sleeve (300) to rotate;
the supporting plate (442) is fixed at the bottom side of the scraping plate (441) and is used for receiving scraped soil samples.
2. The geological detection sample core sampling device according to claim 1, wherein the sleeve (200) comprises a sleeve handle (201) and a fixing groove (203), the sleeve handle (201) is square in shape, can be detachably fixed on two sides of the upper end face of the sleeve (200), and is symmetrically arranged.
3. A geological test sample core sampling device according to claim 2, characterized in that said fixing groove (203) is an axial groove on the inner side of the sleeve (200); the upper end surface of the fixed groove (203) is flush with the upper end surface of the sleeve (200) and is open; limiting blocks matched with the outer shape are arranged in the fixing grooves (203), and are arranged on two sides of the fixing sleeve (300) and used for limiting the height of the fixing sleeve (300).
4. The geological detection sample core sampling device according to claim 1, wherein the transmission rod (310) further comprises a rotary handle (301) and a protrusion (311), the rotary handle (301) is a circular ring handle, and the rotary handle is coaxially fixed on the upper end surface of the transmission rod (310); the shape of the bulge (311) is cross; a groove (431) corresponding to the shape of the protrusion (311) is arranged on the upper end surface of the scraper connecting shaft (430), and the shape of the groove (431) is matched with the protrusion (311); when the protrusion (311) is inserted into the groove (431), the rotation of the rotary handle (301) can drive the scraper connecting shaft (430) to rotate.
5. The geological detection sample core sampling device according to claim 4, wherein a plurality of scraper assemblies (400) are provided, two adjacent scraper assemblies (400) are connected and driven through scraper connecting shafts (430), and the two adjacent scraper connecting shafts (430) are synchronously rotated through plugging;
the housings of two adjacent scraper assemblies (400) are fixed through a connecting sleeve (302).
6. The geological detection sample core sampling device according to claim 5, wherein a supporting sleeve (320) is arranged on one side of the scraper assembly (400) close to the bottom of the base sleeve (110);
the bearing sleeve (320) shell is cylindrical, is provided with openings at two ends, and is detachably and fixedly connected with the shell of the scraper component (400) at the lowest end; the lower end surface of the cylindrical barrel of the bearing sleeve (320) is fixedly provided with a bearing fixing seat (321);
the upper end face of the bearing fixing seat (321) is coaxially rotated to fix a rotating shaft, the bottom end of a scraper connecting shaft (430) at the lowest end of the rotating shaft is inserted, the rotating shaft and the scraper connecting shaft (430) synchronously rotate, and meanwhile, the scraper connecting shaft is supported.
7. The geological detection sample core sampling device according to claim 1, wherein the scraping plate (441) is far away from one side of the supporting plate (442), a limiting block A (414) is arranged at a position close to the rotating sleeve (413), the limiting block A (414) is in a strip shape, and one side of the limiting block A is provided with an arc chamfer;
a limiting block B (415) is arranged on one side, close to the scraper connecting shaft (430), of the limiting block A (414), the limiting block B (415) is in a strip shape, the cross section of the limiting block B (415) is consistent with that of the limiting block A (414), and the limiting block B (415) is connected with the cutter connecting seat 411;
the limiting block A (414) and the limiting block B (415) are used for abutting the scraping plate (441) to limit the maximum opening and closing angle of the scraping plate (441).
8. The geological detection sample core sampling device according to claim 7, further comprising liquid storage bags (420), wherein the number of the liquid storage bags (420) is consistent with that of the cutters, one side of each liquid storage bag (420) is fixed in a storage groove (422), and the supporting plate (442) can extend into the lower side of each liquid storage bag (420);
the liquid storage bag (420) is used for water inflow and drainage through a liquid pipeline (423), and the pipeline penetrates out of the top end of the sleeve (200) from a gap between the fixed sleeve (300) and the sleeve (200).
9. The geological detection sample core sampling device according to claim 8, wherein the portion of the liquid pipeline (423) located outside the sleeve is vertically arranged, and scales are marked on the vertically arranged pipeline.
10. A method for sampling a core of a geological test sample, characterized in that the device for sampling a core of a geological test sample according to claim 1 is used, and the sampling steps are as follows:
step one, a scraper component (400) is fixed with a fixed sleeve (300) and is placed in the sleeve (200);
step two, a transmission rod (310) penetrates through the fixed sleeve (300) and is inserted into the groove (431), and the scraping plate (441) is rotated by a preset angle to extend out of the digging hole (202);
step three, rotating the sleeve (200) to drive the scraping plate (441) to scrape soil samples;
step four, rotating the transmission rod (310) to retract the scraping plate (441);
and fifthly, the fixed sleeve (300) is communicated with the scraper component (400) to lift the sleeve (200) together, and the transmission rod (310) is rotated to enable the scraping plate (441) to extend out, so that a sample can be obtained.
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