CN109406204B - Fragile rock stratum sample collection drill rod structure - Google Patents
Fragile rock stratum sample collection drill rod structure Download PDFInfo
- Publication number
- CN109406204B CN109406204B CN201811651014.4A CN201811651014A CN109406204B CN 109406204 B CN109406204 B CN 109406204B CN 201811651014 A CN201811651014 A CN 201811651014A CN 109406204 B CN109406204 B CN 109406204B
- Authority
- CN
- China
- Prior art keywords
- drill
- bushing
- drill rod
- pipe
- upper fixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011435 rock Substances 0.000 title claims abstract description 33
- 238000005070 sampling Methods 0.000 claims abstract description 62
- 238000000926 separation method Methods 0.000 claims abstract description 49
- 239000002689 soil Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 9
- 239000000110 cooling liquid Substances 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 8
- 230000004308 accommodation Effects 0.000 claims 1
- 239000002826 coolant Substances 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005527 soil sampling Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a fragile rock stratum sample collecting drill rod structure, which adopts a multi-layer structure combination to form an annular hollow area, is matched with an external refrigerant to form a protective shell in the hollow area at a low temperature, and is used for solidifying the outer side of a sample to form a protective shell and separating and collecting a soil sample at the position of a core part through a sampling tube. The sample is taken first and then cooled, and the outer edge of the sample is not squeezed. The inner diameter of the inner supporting ring is gradually reduced from bottom to top, a plurality of groups of drill rod blades are arranged on the outer wall of the outer drill sleeve at equal intervals, the drill rod blades in the same group are distributed annularly, the width of each drill rod blade is gradually reduced from one end to the other end, an inner annular groove is formed in the inner side wall of the outer drill sleeve, one end of the inner annular groove extends to the position of the inner supporting ring, the lower separation pipe is arranged in the outer drill sleeve, one end of the lower separation pipe is in threaded connection with the other end of the outer drill sleeve through an external thread, and a sealing gasket is arranged on the end face of the other end of the lower separation pipe and is attached to the inner supporting ring.
Description
Technical Field
The invention discloses a fragile rock stratum sample collection drill rod structure, relates to a drill rod for collecting samples of fragile rock soil through a multilayer structure in a geological exploration process, and belongs to the field of geological exploration. In particular to a drill rod structure which adopts a multi-layer structure combination to form an annular hollow area, is matched with external refrigerant to realize low temperature in the hollow area, ensures that the outer side of a sample is solidified to form a protective shell, and separates and collects soil samples at the core part through a sampling tube.
Background
At present, in the earlier stages of operations such as civil construction, road and bridge laying, coal mine excavation, oil and gas exploitation and the like, a geological geomorphic geotechnical structure needs to be sampled and analyzed, soil layers are often loosened during sampling, such as beach areas or broken rock layers, so that the original tissues, permeability and porosity of loosened sediments and broken rock layers need to be analyzed, the sample structure is loose and fragile, the quality of the obtained sample is poor, and the sample cannot be used for analysis and detection, because of the limitation of power and equipment structures, the existing sampling drill rod is of a hollow structure, the sleeve is rotated to collect the sample, but the sample structure is loose, the sample is easy to fall off during sampling, the high-quality core sample with a regular shape is not easy to obtain, the rock core harvesting rate is low for the loose and the rock core is often damaged secondarily during the process of taking out of the sleeve, some of the existing methods adopt a mode of freezing and solidifying a loose and fragile rock stratum by combining cooling liquid and then sampling, so that the outer edge of a sample is cut and extruded, the components of the sample are influenced, and the accuracy of detection is finally influenced.
Publication number CN206583629U discloses a soil sampler and soil sampling device, including drill bit, drilling rod and motor, the drill bit with the drilling rod is connected, the drilling rod is kept away from the one end of drill bit with the motor is connected, the motor is used for the drive the drilling rod, the lateral wall of drill bit is close to the predetermined distance department of drilling rod is followed the circumference of drill bit is provided with the second opening of predetermineeing thickness as first layering socket, distance on the lateral wall of drill bit the predetermined distance department of first layering socket is followed the circumference of drill bit is provided with the third opening of predetermineeing thickness as second layering socket, and the device structure is complicated, and can not form massive structure to the sampling of loose ground equally.
Disclosure of Invention
In order to improve the situation, the fragile rock stratum sample collecting drill rod structure provided by the invention adopts a multi-layer structure combination to form an annular hollow area, and is matched with an external refrigerant to realize low temperature in the hollow area, so that the outer side of a sample is solidified to form a protective shell, and a soil sample at the core part is separated and collected through the sampling tube. The sample is taken first and then cooled, and the outer edge of the sample is not squeezed.
The fragile rock stratum sample collection drill rod structure is realized by the following steps: the invention relates to a fragile rock stratum sample collecting drill rod structure which comprises a drill rod chuck, a connecting sleeve, a sampling pipe, drill rod blades, a lower separation pipe, an outer drill bushing, an inner bushing, an upper fixing sleeve, a sampling chuck, an inner limiting table, an outer limiting table, a communicating groove, internal threads, a sealing gasket, external threads, a sealing ring, a conical communicating hole, an inner annular groove, an inner supporting ring, an outer annular groove, a limiting ring and a diversion groove, wherein the inner supporting ring is arranged on the inner wall of one end of the outer drill bushing, the inner diameter of the inner supporting ring is gradually reduced from bottom to top, a plurality of groups of drill rod blades are arranged on the outer wall of the outer drill bushing at equal intervals, the drill rod blades in the same group are distributed annularly, the width of the drill rod blades is gradually reduced from one end to the other end, the inner annular groove is formed on the inner side wall of the outer drill bushing, one end of the inner annular groove extends to the position of the inner supporting ring, the lower separation pipe is arranged in the outer drill bushing, one end of the lower separation pipe is in threaded connection with the other end of the outer drill bushing through the external threads, the end face of the other end of the lower separation pipe is provided with a sealing gasket and is attached to the inner supporting ring, the lower separation pipe is provided with a plurality of communicating grooves which are respectively communicated with the other end of the inner annular groove, the diameter of each communicating groove is gradually reduced from inside to outside, the inner side wall of the lower separation pipe is provided with an internal thread, an upper fixing sleeve is arranged at one end of the lower separation pipe and is positioned above an outer drill sleeve, one end of the upper fixing sleeve is provided with an outer limiting table, the other end of the outer drill sleeve is provided with a limiting inclined plane and is corresponding to the outer limiting table, the outer diameter of the outer drill sleeve is equal to that of the upper fixing sleeve, the inner limiting table is arranged on the inner wall of the upper fixing sleeve, the connecting sleeve is arranged at the other end of the upper fixing sleeve and is in threaded connection with the upper fixing sleeve, a drill rod chuck is arranged on the upper side face of the connecting sleeve, the chuck is of a hollow structure and is communicated with the upper fixing sleeve, and a conical communicating hole is arranged on the upper side face of the connecting sleeve, one end of an inner bushing is in threaded connection with an internal thread on the inner wall of a lower separation pipe, the other end of the inner bushing extends upwards to be attached to a drill rod chuck, a sealing ring is arranged between the other end of the inner bushing and the drill rod chuck, the outer diameter of one end of the inner bushing is larger than that of the other end of the inner bushing, an upper accommodating cavity is arranged between the inner bushing and an upper fixing sleeve, a lower accommodating cavity is arranged between the inner bushing and the lower separation pipe and communicated with a communication groove, a limiting ring is arranged on the outer wall of the inner bushing and corresponds to an inner limiting table, a flow guide groove is formed in the outer side of the limiting ring and communicated with the upper accommodating cavity and the lower accommodating cavity, the width of the flow guide groove is gradually reduced from outside to inside, a sampling chuck is detachably arranged in the inner bushing, one end of a sampling pipe is connected with the sampling chuck, the other end of the sampling pipe extends downwards to the lower separation pipe, a drill blade is arranged at the other end of the sampling pipe, and a separation cavity is arranged between the sampling pipe and the lower separation pipe, furthermore, a guide plate is arranged on the outer wall of the inner bushing and positioned in the lower accommodating cavity, the guide plate is a spiral plate, and a plurality of through holes are formed in the guide plate and distributed in a spiral manner.
Has the beneficial effects.
Firstly, the sampling effect of the position of the fragile rock soil can be improved.
And secondly, the drill cuttings are separated from the sampling, so that the separation and the crushing of the sample can be avoided.
And thirdly, circumferential annular low temperature is achieved, and the solidification efficiency of the fragile rock stratum is improved.
Fourthly, the outer layer of the soil sample is solidified and separated, and the core part position is adopted, so that the sampling effect is better.
And fifthly, sampling is carried out firstly, and then cooling is carried out, so that the outer edge of the sample cannot be extruded.
Drawings
FIG. 1 is a schematic structural view of a fragile rock formation sample collection drill pipe structure of the present invention;
FIG. 2 is a perspective exploded view of the structural upper fixing sleeve of the fragile rock formation sample collection drill rod of the present invention, which shows only the structure of the upper fixing sleeve and the positional relationship with the connecting sleeve;
FIG. 3 is a perspective view of the outer drill sleeve of the fragile rock formation sample collection drill rod structure of the present invention;
FIG. 4 is a perspective view of the bushing within the fragile rock formation sample collection drill pipe structure of the present invention;
FIG. 5 is a perspective view of an inner liner of a fragile rock formation sample collection drill pipe structure according to embodiment 2 of the present invention;
in the attached drawings
Wherein the parts are: drill pipe chuck (1), adapter sleeve (2), sampling pipe (3), drill pipe sword (4), lower partition tube (5), outer drill bushing (6), interior bushing (7), go up fixed cover (8), sample chuck (9), interior spacing platform (10), outer spacing platform (11), intercommunication groove (12), internal thread (13), sealed pad (14), external screw thread (15), sealing ring (16), through hole (17), toper intercommunicating pore (18), interior annular groove (19), interior support ring (20), outer annular groove (21), spacing ring (22), guiding gutter (23), guide plate (24).
The specific implementation mode is as follows:
example 1:
the invention relates to a fragile rock stratum sample collection drill rod structure which is realized by a drill rod chuck (1), a connecting sleeve (2), a sampling pipe (3), drill rod blades (4), a lower separating pipe (5), an outer drill bushing (6), an inner bushing (7), an upper fixing sleeve (8), a sampling chuck (9), an inner limiting platform (10), an outer limiting platform (11), a communicating groove (12), an internal thread (13), a sealing gasket (14), an external thread (15), a sealing ring (16), a conical communicating hole (18), an inner annular groove (19), an inner supporting ring (20), an outer annular groove (21), a limiting ring (22) and a diversion trench (23), wherein the inner supporting ring (20) is arranged on the inner wall at one end of the outer drill bushing (6), the inner diameter of the inner supporting ring (20) is gradually reduced from bottom to top, a plurality of groups of drill rod blades (4) are equidistantly arranged on the outer wall of the outer drill bushing (6), and the drill rod blades (4) in the same, the width of the drill rod blade (4) is gradually reduced from one end to the other end, an inner annular groove (19) is formed in the inner side wall of the outer drill bushing (6), one end of the inner annular groove (19) extends to the position of the inner supporting ring (20), the lower separation tube (5) is arranged in the outer drill bushing (6), one end of the lower separation tube (5) is in threaded connection with the other end of the outer drill bushing (6) through an external thread (15), a sealing gasket (14) is arranged on the end face of the other end of the lower separation tube (5) and is attached to the inner supporting ring (20), a plurality of communication grooves (12) are formed in the lower separation tube (5) and are respectively communicated with the other end of the inner annular groove (19) correspondingly, the diameter of each communication groove (12) is gradually reduced from inside to outside, an internal thread (13) is arranged on the inner side wall of the lower separation tube (5), an upper fixing sleeve (8) is arranged at one end of the lower separation tube (5), and is positioned above the outer drill bushing (6), one end of the upper fixing bushing (8) is provided with an outer limit platform (11), the other end of the outer drill bushing (6) is provided with a limit inclined plane and corresponds to the outer limit platform (11), the outer diameter of the outer drill bushing (6) is equal to the outer diameter of the upper fixing bushing (8), the inner limit platform (10) is arranged on the inner wall of the upper fixing bushing (8), the connecting bushing (2) is sleeved on the other end of the upper fixing bushing (8) and is in threaded connection with the upper fixing bushing (8), the drill rod chuck (1) is arranged on the upper side surface of the connecting bushing (2), the drill rod chuck (1) is of a hollow structure and is communicated with the upper fixing bushing (8), the upper side surface of the connecting bushing (2) is provided with a conical communicating hole (18), one end of the bushing (7) is in threaded connection with an inner thread (13) on the inner wall of the lower separation pipe (5), and the other end of the bushing (7) extends upwards to be attached to the drill rod chuck (1), a sealing ring (16) is arranged between the other end of the inner bushing (7) and the drill rod chuck (1), the outer diameter of one end of the inner bushing (7) is larger than that of the other end of the inner bushing (7), an upper containing cavity is arranged between the inner bushing (7) and the upper fixing sleeve (8), a lower containing cavity is arranged between the inner bushing (7) and the lower separation pipe (5) and communicated with the communicating groove (12), a limiting ring (22) is arranged on the outer wall of the inner bushing (7) and corresponds to the inner limiting table (10), a diversion trench (23) is opened on the outer side of the limiting ring (22) and communicated with the upper containing cavity and the lower containing cavity, the width of the diversion trench (23) is gradually reduced from outside to inside, the sampling chuck (9) is detachably arranged in the inner bushing (7), one end of the sampling pipe (3) is connected with the sampling chuck (9), and the other end extends downwards to the lower separation pipe (5), the other end of the sampling pipe (3) is provided with a drill blade, a separation cavity is arranged between the sampling pipe (3) and the lower separation pipe (5), and the lower separation pipe (5) and the upper fixing sleeve (8) are integrally formed.
When the device is used for sampling a fragile rock stratum, the device is connected with an external drill rod through a drill rod chuck (1), then cooling liquid is injected into a conical communication hole (18), the cooling liquid enters an upper containing cavity through the conical communication hole (18) and then enters a lower containing cavity through a diversion trench (23), the cooling liquid in the lower containing cavity flows into an inner annular groove (19) through a plurality of communication trenches (12) on a lower separation pipe (5), then the inner annular groove (19) is filled with the cooling liquid, then an external drilling machine works, the drill rod drives the device to rotate through the drill rod chuck (1), an outer drill sleeve (6) drills down a rock stratum through a blade drill rod (4), a sampling pipe (3) drills down the fragile rock stratum along with the device, in the drilling down process, a soil sample gradually enters a separation cavity and the sampling pipe (3), and the cooling liquid in the inner annular groove (19) cools and solidifies the soil sample in the separation cavity, the soil sample in the separation cavity forms a protective shell, the soil sample at the sampling port of the sampling pipe (3) is prevented from falling off, the sampling pipe (3) is used for separating and collecting the soil sample at the core part, sampling is carried out firstly in the sampling process, then the soil sample at the outer side is cooled, the outer edge of the sample is not extruded when the sampling pipe (3) is used for sampling, and the sampling pipe (3) is integrally taken out from the interior of the sampling device through a sampling chuck (9) after sampling is finished;
example 2:
the difference between this example and example 1 is: the outer wall of the inner bushing (7) is provided with a guide plate (24) which is positioned in the lower accommodating cavity, the guide plate (24) is a spiral plate, and the guide plate (24) is provided with a plurality of through holes (17) which are distributed in a spiral manner. When the cooling liquid is injected, the cooling liquid flowing into the lower accommodating cavity through the guide groove (23) flows spirally along the guide plate (24), so that the cooling liquid is distributed more uniformly in the lower accommodating cavity;
the inner diameter of the inner supporting ring (20) is gradually reduced from bottom to top, so that the inner side surface of the inner supporting ring (20) is an inclined surface, and a soil sample gradually enters the lower separation pipe (5) along the inclined surface to be sampled;
a sealing gasket (14) is arranged on the end face of the other end of the lower separation pipe (5), and the sealing gasket is attached to the inner supporting ring (20) and can seal the cooling liquid in the inner annular groove (19);
the diameter of the communicating groove (12) is gradually reduced from inside to outside, so that the cooling in the lower accommodating cavity can enter the communicating groove (12);
the outer diameter of one end of the inner bushing (7) is larger than that of the other end of the inner bushing (7), so that a lower accommodating cavity can be formed between the inner bushing (7) and the lower separation pipe (5), and an upper accommodating cavity can be formed between the inner bushing (7) and the upper fixing sleeve (8);
the width of the flow guide groove (23) is gradually reduced from outside to inside, so that the inner area of the flow guide groove (23) is increased, and the cooling liquid in the upper accommodating cavity can conveniently enter the lower accommodating cavity through the flow guide groove (23);
the design that the drill blade is arranged at the other end of the sampling pipe (3) can separate and sample the soil samples inside and outside the sampling pipe (3), so that the soil samples in the core part can be separated and sampled, and the sampling effect is better;
the lower separation pipe (5) and the upper fixing sleeve (8) are integrally formed, so that the connection strength of the lower separation pipe (5) and the upper fixing sleeve (8) can be improved, and the overall stability is better;
the outer drill bushing (6) is matched with the lower separation pipe (5), the upper fixing sleeve (8) and the inner bushing (7) to form a hollow area, and the outer side of the sample can be solidified to form a protective shell by matching with cooling liquid, so that the sample is prevented from loosening and falling;
the sampling pipe (3) is matched with the lower separation pipe (5) and the outer drill bushing (6), so that the position of a soil sample core can be separated and collected, and the soil sample can be better collected;
during sampling, the design of injecting cooling liquid into the inner annular groove (19) can freeze the outer layer of the soil sample and form a protective shell for the core soil sample, so that the core soil sample is prevented from loosening and falling;
after sampling is finished, the sampling chuck (9) is used for taking out the sampling pipe (3) integrally, only the soil sample in the sampling pipe (3) is adopted, and the soil sample on the outer layer is not adopted;
during sampling, sampling is carried out firstly, and then the outer layer of the soil sample is subjected to freezing design, so that the outer edge of the sample is not extruded when the sampling pipe (3) is used for sampling, and the soil sample is not extruded and damaged;
the purpose that the annular hollow area is formed by adopting the combination of a multilayer structure and matching with external refrigerant to realize low temperature in the hollow area, so that the outer side of the sample is solidified to form a protective shell, and the soil sample at the core part is separated and collected through the sampling tube is achieved.
The above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
Claims (9)
1. The utility model provides a fragile rock stratum sample collection drilling rod structure which characterized by: the inner supporting ring is arranged on the inner wall of one end of the outer drill bushing, a plurality of groups of drill rod blades are arranged on the outer wall of the outer drill bushing at equal intervals, the drill rod blades in the same group are distributed annularly, the width of the drill rod blades is gradually reduced from one end to the other end, an inner annular groove is formed in the inner side wall of the outer drill bushing, one end of the inner annular groove extends to the position of the inner supporting ring, the lower separation pipe is arranged in the outer drill bushing, one end of the lower separation pipe is in threaded connection with the other end of the outer drill bushing through external threads, a plurality of communication grooves are formed in the lower separation pipe and are respectively communicated with the other end of the inner annular groove correspondingly, internal threads are arranged on the inner side wall of the lower separation pipe, the upper fixing sleeve is arranged on one end of the lower separation pipe and is positioned above the outer drill bushing, an outer limiting platform is arranged at one end of the upper fixing sleeve, a limiting inclined plane is arranged at the other end of the outer drill bushing and is corresponding to the outer limiting platform, the outer diameter of the outer drill bushing is equal to the outer diameter of the upper fixing sleeve, the inner limiting platform is arranged on the inner wall of the upper fixing sleeve, the connecting sleeve is arranged at the other end of the upper fixing sleeve and is in threaded connection with the upper fixing sleeve, the drill rod chuck is arranged on the side surface of the connecting sleeve, the drill rod chuck is of a hollow structure and is communicated with the upper fixing sleeve, the side surface of the connecting sleeve is provided with a conical communicating hole, one end of the inner bushing is in threaded connection with the internal thread on the inner wall of the lower separating tube, the other end of the inner bushing extends upwards to be attached to the drill rod chuck, a sealing ring is arranged between the other end of the inner bushing and the drill rod chuck, an upper accommodating cavity is arranged between the inner bushing and the upper fixing sleeve, a lower accommodating cavity is arranged between the inner bushing and the lower separating tube and is communicated with the communicating groove, the limiting ring is arranged on the outer wall of the inner bushing and corresponds to the inner limiting table, the outer side of the limiting ring is provided with a flow guide groove and is communicated with the upper accommodating cavity and the lower accommodating cavity, the sampling chuck is detachably arranged in the inner bushing, one end of the sampling tube is connected with the sampling chuck, and the other end extends downwards into the lower separating tube, a separation cavity is arranged between the sampling pipe and the lower separation pipe, the lower separation pipe and the upper fixing sleeve are integrally formed, and a sealing gasket is arranged on the end face of the other end of the lower separation pipe and is attached to the inner supporting ring.
2. The fragile rock stratum sample collection drill rod structure as claimed in claim 1, wherein a flow guide plate is disposed on an outer wall of the inner bushing and located in the lower accommodation chamber.
3. The fragile rock stratum sample collection drill rod structure according to claim 2, wherein the flow guide plate is a spiral plate, and a plurality of through holes are formed in the flow guide plate and distributed in a spiral shape.
4. The friable rock formation sample collection drill pipe structure of claim 1, wherein the inner diameter of the inner backing ring decreases gradually from bottom to top.
5. The friable rock formation sample collection drill pipe structure of claim 1, wherein the communication channel tapers in diameter from the inside to the outside.
6. The friable rock formation sample collection drill pipe structure of claim 1, wherein an outer diameter of one end of the inner sleeve is greater than an outer diameter of the other end of the inner sleeve.
7. The fragile rock stratum sample collection drill rod structure as claimed in claim 5, wherein the width of the diversion trench is gradually reduced from outside to inside, so as to increase the inner area of the diversion trench, thereby facilitating the coolant in the upper accommodating cavity to enter the lower accommodating cavity through the diversion trench.
8. The fragile rock stratum sample collection drill rod structure as claimed in claim 1, wherein the other end of the sampling pipe is provided with a drill blade, so that soil samples inside and outside the sampling pipe can be separately sampled, and further, the soil samples in the core part can be separately sampled.
9. The fragile rock stratum sample collection drill rod structure as claimed in claim 1, wherein the outer drill sleeve is matched with the lower separation tube, the upper fixing sleeve and the inner sleeve to form a hollow area, and the matched cooling liquid can be solidified to the outer side of the sample to form a protective shell to prevent the sample from being loose and falling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811651014.4A CN109406204B (en) | 2018-12-31 | 2018-12-31 | Fragile rock stratum sample collection drill rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811651014.4A CN109406204B (en) | 2018-12-31 | 2018-12-31 | Fragile rock stratum sample collection drill rod structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109406204A CN109406204A (en) | 2019-03-01 |
| CN109406204B true CN109406204B (en) | 2021-09-21 |
Family
ID=65461609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811651014.4A Active CN109406204B (en) | 2018-12-31 | 2018-12-31 | Fragile rock stratum sample collection drill rod structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109406204B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636867B (en) * | 2020-06-15 | 2024-06-18 | 刘梦 | Geological drilling sampler |
| CN112903335B (en) * | 2021-01-15 | 2022-04-26 | 中山大学 | Viscoelastic-plastic material automatic acquisition device |
| CN118190507B (en) * | 2024-05-17 | 2024-08-02 | 山西农业大学 | Soil stratified sampling ware |
| CN118243437B (en) * | 2024-05-20 | 2024-07-23 | 陕西交通职业技术学院 | Rock core sampling device and sampling method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0262133A1 (en) * | 1985-06-12 | 1988-04-06 | STRINDBERG, Conny | Arrangement for a soil sampler |
| CN105547780A (en) * | 2015-12-29 | 2016-05-04 | 温州大学 | Soil body one dimensional consolidation tester and test method thereof |
| CN205259948U (en) * | 2015-11-27 | 2016-05-25 | 杭州鑫磊矿业有限公司 | Cavity prospect drill bit device of can taking a sample |
| CN206158642U (en) * | 2016-10-24 | 2017-05-10 | 刘昕羽 | A core draws drilling tool for prospecting |
| CN207396092U (en) * | 2017-11-20 | 2018-05-22 | 张伟 | A kind of catalase sampling equipment |
| CN108709766A (en) * | 2018-07-25 | 2018-10-26 | 吉林大学 | A kind of dual-purpose microstructure freezing heating sampler and cutter device |
| CN208155632U (en) * | 2018-05-22 | 2018-11-27 | 唐山学院 | For fixing and protecting the device of ground sampling hole machine |
| CN108952611A (en) * | 2018-10-22 | 2018-12-07 | 吉林大学 | A kind of ocean hole bottom freezing cord coring drill and method |
-
2018
- 2018-12-31 CN CN201811651014.4A patent/CN109406204B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0262133A1 (en) * | 1985-06-12 | 1988-04-06 | STRINDBERG, Conny | Arrangement for a soil sampler |
| CN205259948U (en) * | 2015-11-27 | 2016-05-25 | 杭州鑫磊矿业有限公司 | Cavity prospect drill bit device of can taking a sample |
| CN105547780A (en) * | 2015-12-29 | 2016-05-04 | 温州大学 | Soil body one dimensional consolidation tester and test method thereof |
| CN206158642U (en) * | 2016-10-24 | 2017-05-10 | 刘昕羽 | A core draws drilling tool for prospecting |
| CN207396092U (en) * | 2017-11-20 | 2018-05-22 | 张伟 | A kind of catalase sampling equipment |
| CN208155632U (en) * | 2018-05-22 | 2018-11-27 | 唐山学院 | For fixing and protecting the device of ground sampling hole machine |
| CN108709766A (en) * | 2018-07-25 | 2018-10-26 | 吉林大学 | A kind of dual-purpose microstructure freezing heating sampler and cutter device |
| CN108952611A (en) * | 2018-10-22 | 2018-12-07 | 吉林大学 | A kind of ocean hole bottom freezing cord coring drill and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109406204A (en) | 2019-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109406204B (en) | Fragile rock stratum sample collection drill rod structure | |
| KR101463185B1 (en) | Soil sampling mechanism | |
| CN210123359U (en) | Soil sampler for geological exploration | |
| CN208902444U (en) | A kind of spiral and the undisturbed soil sampling tool for directly pushing away drilling and being combined | |
| JPH0972184A (en) | Sampler for ground sample | |
| Popp et al. | Deep ice-core drilling performance and experience at NEEM, Greenland | |
| CN104612676A (en) | Multifunctional drill bit for tailing drilling | |
| CN109930999B (en) | Geological exploration drill bit and manufacturing process thereof | |
| US2332267A (en) | Cutting collector | |
| CN213144381U (en) | Loose for stone layer diamond sample drill bit | |
| CN217033083U (en) | Ground stratified sampling device | |
| US20140021772A1 (en) | Systems and methods for sonic subsurface material removal | |
| CN201152898Y (en) | Shallow layer core fetching tool for oil and seismic exploration | |
| CN211697006U (en) | Geodetic prospecting geodetic apparatus | |
| CN204419178U (en) | Mine tailing probing Multifunctional drill | |
| CN111608569B (en) | Rock particle sampling drill bit for rock exploration | |
| CN113294107A (en) | Spiral rope core drill and construction method thereof | |
| CN108019208B (en) | Direct-push type well-building water sampling drilling tool assembly | |
| CN112096295A (en) | Combined PDC drill bit for drilling and using method thereof | |
| CN220304852U (en) | Electric rotary sampler for geological exploration for mining | |
| CN215213344U (en) | Expanding drill bit | |
| US10975644B2 (en) | Inner barrel assembly for recovery of reservoir fluids from a core sample | |
| CN203894076U (en) | Desert-region fixed-point sand sampler | |
| CN112985889B (en) | Equipment for sampling soil at different levels of profile | |
| KR200355515Y1 (en) | Triple core barrel for ground investigation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240228 Address after: 124000 petroleum high tech Industrial Park, Panjin Economic Development Zone, Panjin City, Liaoning Province Patentee after: Pipe & Drilling Tools Manufacture LTD.,LPEB.CNPC Country or region after: China Address before: 221000 f-234, Tongchuang block, Science Park, China University of mining and technology, Jiefang South Road, Quanshan District, Xuzhou City, Jiangsu Province Patentee before: Hu Nan Country or region before: China |