CN112378699B - Drilling equipment convenient to petroleum geology sample detects - Google Patents
Drilling equipment convenient to petroleum geology sample detects Download PDFInfo
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- CN112378699B CN112378699B CN202011285576.9A CN202011285576A CN112378699B CN 112378699 B CN112378699 B CN 112378699B CN 202011285576 A CN202011285576 A CN 202011285576A CN 112378699 B CN112378699 B CN 112378699B
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- 238000005553 drilling Methods 0.000 title claims abstract description 14
- 239000003208 petroleum Substances 0.000 title claims abstract description 10
- 238000005070 sampling Methods 0.000 claims abstract description 104
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000000712 assembly Effects 0.000 claims description 14
- 238000000429 assembly Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000005484 gravity Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
-
- 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
-
- 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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/16—Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses drilling equipment convenient for petroleum geological sampling detection, which comprises a frame, a lifting assembly and a sinking assembly, wherein four telescopic supporting legs are arranged at the bottom end of the frame so as to be convenient for adjusting the gravity center of the whole device, the top end of the sinking assembly is rotatably arranged on a transverse plate in the middle of the lifting assembly, the lifting assembly is slidably connected to the frame and is used for driving the sinking assembly to move up and down, and a drill bit is arranged at the bottom end of the sinking assembly so as to drill a region needing to be sampled; the maximum outer diameter of the drill bit is larger than the maximum outer diameter of the sinking shell; the middle part of the top end of the sinking assembly is fixedly connected with a driving device, and the driving device is used for driving the sinking assembly to rotate so as to realize multipoint sampling at the same depth.
Description
Technical Field
The invention belongs to the technical field of drilling equipment, and particularly relates to drilling equipment convenient for petroleum geological sampling detection.
Background
Petroleum geology is mainly the law of research on the generation, migration and aggregation of petroleum and natural gas in the crust, so that sample collection needs to be carried out by drilling into different depths of the ground by means of a drilling sampling device, however, it has been found that the existing petroleum geology sampling drilling device often has the following problems:
1. only a single sampling component is provided, and only a specific depth can be subjected to sample collection in the one-time sampling working process, so that the sampling efficiency is greatly reduced;
2. many sampling devices can only sample a single point at the same depth, so that a sample is not representative, and a sample detection result is not convincing;
3. the sampling device has a simple structure, can only collect solid soil, can not acquire better samples mixed by solid and liquid, and has larger limitation.
Accordingly, one skilled in the art would provide a drilling apparatus that facilitates petroleum geology sampling detection to address the problems set forth in the background above.
Disclosure of Invention
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a drilling equipment convenient to petroleum geology sample detection, its includes frame, lifting unit and subsidence subassembly, wherein, the bottom of frame is provided with four scalable supporting legs, is convenient for adjust the focus of whole device, the top rotation of subsidence subassembly is installed on the diaphragm at lifting unit middle part, lifting unit sliding connection is in the frame for drive subsidence subassembly and carry out the vertical displacement, the bottom of subsidence subassembly is provided with the drill bit, so that carry out the drilling to the region that needs the sample;
the maximum outer diameter of the drill bit is larger than the maximum outer diameter of the sinking shell;
the middle part of the top end of the sinking assembly is fixedly connected with a driving device, and the driving device is used for driving the sinking assembly to rotate so as to realize multipoint sampling at the same depth.
Further, preferably, the lifting assembly comprises a threaded rod, a rotating motor and a guide rod, wherein the threaded rod is rotatably connected to the left side of the frame, one end of the threaded rod extending upwards to the outside of the frame is provided with a driven bevel gear, the driven bevel gear is meshed with a driving bevel gear fixed at the tail end of an output shaft of the rotating motor, and the rotating motor is arranged at the top end of the frame;
the guide rod is arranged on the right side of the sinking assembly and is fixedly connected to the frame;
the threaded rod is provided with a threaded sleeve in threaded engagement, the right end of the threaded sleeve is fixedly connected with one end of the transverse plate, and the other end of the transverse plate is slidably connected to the guide rod.
Further, preferably, the sinking component comprises a sinking shell, a sampling component and a connecting transmission device, wherein the plurality of sampling components are arranged in the sinking shell, and the connecting transmission device is arranged at the top end of the sinking shell;
the sampling assemblies are vertically distributed at equal intervals;
the sampling assemblies are connected and driven through belts, and the uppermost sampling assembly is connected and driven with the connecting and driving device through the belts;
the right side inside the sinking shell is vertically provided with a supporting plate.
Further, preferably, the connection transmission device comprises a micro motor, a rotating shaft and a sliding cutting sleeve, the rotating shaft is rotationally connected inside the sinking shell, the rotating shaft extends leftwards to one end outside the sinking shell and is fixedly connected with an output shaft of the micro motor, the micro motor is fixed outside the sinking shell, and the sliding cutting sleeve is slidingly sleeved on the rotating shaft;
the middle circumference of the rotating shaft is provided with a plurality of outer flower teeth, and the transverse range occupied by the outer flower teeth is larger than the maximum displacement in the sampling renting working process.
Further, preferably, the sliding sleeve comprises a first belt pulley, a bearing, a spline sleeve and an adapter plate, wherein the first belt pulley is welded on the outer circumferential surface of the spline sleeve, and the right side of the spline sleeve is rotationally connected with the adapter plate through the bearing;
the circumference of the inner ring of the spline sleeve is provided with a plurality of inner spline teeth which are engaged with the outer spline teeth in a matching way;
the upper end of the adapter plate is provided with a circular through hole, and the aperture of the through hole is larger than the outer diameter of the rotating shaft;
the lower part of the right end face of the adapter plate is fixedly connected with the telescopic end of the first electric adjusting rod, and the first electric adjusting rod is arranged on the supporting plate.
Further, preferably, the sampling assembly comprises a helical blade, a sampling tube and a belt pulley II, wherein the helical blade is transversely arranged in the sampling tube in a rotating manner, and the helical blade extends rightwards to one end of the outer part of the sampling tube, and the belt pulley II is installed at one end of the helical blade;
the cross section of the sampling tube isThe left end face of the transverse part is of an inclined surface structure;
the bottom end of the sampling tube extends into the sample bottle and is communicated with the sample bottle, the sample bottle is arranged in an annular frame groove in a sliding manner, and the annular frame groove is fixed on the inner wall of the sinking shell;
the right end of the sampling tube is fixedly provided with a pushing plate through a plurality of struts, the right end face of the pushing plate is fixedly connected with the telescopic end of the electric adjusting rod II, and the electric adjusting rod is arranged on the supporting plate.
Further, preferably, the top end of the annular frame groove is of an opening structure, and a U-shaped through groove is formed in the middle of the bottom end of the annular frame groove, and the groove width of the through groove is smaller than the outer diameter of the bottle bottom of the sample bottle and larger than the outer diameter of the belt pulley II.
Further, preferably, spring doors are arranged on the left side of the sinking shell, and the number and the positions of the spring doors are matched and correspond to those of the sampling assembly;
the lower end face of the spring door is of an inclined plane structure and is matched with the inclined plane at the left end of the sampling tube.
Further, preferably, an electromagnetic door is arranged outside the sinking shell, and the number and the positions of the electromagnetic door are in one-to-one correspondence with the plurality of sampling assemblies.
Further, as the preference, drive arrangement includes step motor, accept the cover seat and transmission shaft, the transmission shaft rotates the middle part of connecting at accepting the cover seat, driven round gear is installed on the top of transmission shaft, driven round gear has initiative round gear through gear engagement, initiative round gear fixes the end at step motor output shaft, step motor installs on the diaphragm.
Compared with the prior art, the invention has the beneficial effects that:
1. the device is provided with a plurality of sampling assemblies, so that samples can be collected at different depths of a target area, and the efficiency of sample collection is greatly improved;
2. in the sinking assembly, the sinking shell can rotate at a certain angle under the drive of the stepping motor, and the sampling assembly is used for collecting samples at different points at the same depth, so that the samples at the same depth are more uniform and more representative, and the persuasion of the detection result is improved;
3. in the sampling assembly, the sample is collected through the helical blade, so that the sampling assembly is positioned at the depth of no matter being a pure solid or a solid-liquid mixture, the sampling assembly has a higher sample collection effect, and the adaptability of the device is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a sinking assembly according to the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2 at A;
FIG. 4 is an enlarged schematic view of the structure of FIG. 2 at B;
FIG. 5 is a schematic cross-sectional view of a sliding ferrule of the present invention;
FIG. 6 is a schematic representation of an embodiment of the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6 at C;
in the figure: 1. a frame; 2. a lifting assembly; 3. a sinking assembly; 4. a cross plate; 5. a drill bit; 6. a driving device; 7. a threaded rod; 8. a rotating electric machine; 9. a guide rod; 10. a threaded sleeve; 11. a sinking shell; 12. a sampling assembly; 13. connecting with a transmission device; 14. a micro motor; 15. a rotating shaft; 16. sliding card sleeve; 17. a first belt pulley; 18. a bearing; 19. a spline sleeve; 20. an adapter plate; 21. a support plate; 22. an electric adjusting rod I; 23. a helical blade; 24. a sampling tube; 25. a belt pulley II; 26. a sample bottle; 27. an annular frame groove; 28. a push plate; 29. an electric adjusting rod II; 30. a spring door; 31. a stepping motor; 32. a receiving socket; 33. a transmission shaft; 34. an electromagnetic door.
Detailed Description
Referring to fig. 1, 6 and 7, in an embodiment of the present invention, a drilling device for facilitating petroleum geological sampling detection includes a frame 1, a lifting assembly 2, and a sinking assembly 3, wherein four telescopic supporting legs are provided at the bottom end of the frame 1 to facilitate adjustment of the center of gravity of the whole device, the top end of the sinking assembly 3 is rotatably mounted on a transverse plate 4 in the middle of the lifting assembly 2, the lifting assembly 2 is slidably connected to the frame 1 and is used for driving the sinking assembly 3 to perform up-down displacement, and a drill bit 5 is provided at the bottom end of the sinking assembly 3 to drill a region to be sampled;
the maximum outer diameter of the drill bit 5 is larger than the maximum outer diameter of the sinking housing 11, so that the drill bit 5 drills a hole diameter larger than the outer diameter of the sinking housing 11, and the sinking housing 11 is submerged in a proper state;
the middle part of the top end of the sinking assembly 3 is fixedly connected with a driving device 6, and the driving device 6 is used for driving the sinking assembly 3 to rotate so as to realize multipoint sampling at the same depth.
In this embodiment, the lifting assembly 2 includes a threaded rod 7, a rotating motor 8, and a guide rod 9, where the threaded rod 7 is rotatably connected to the left side of the frame 1, and one end of the threaded rod 7 extending upward to the outside of the frame 1 is provided with a driven bevel gear, the driven bevel gear is meshed with a driving bevel gear fixed at the end of the output shaft of the rotating motor 8, and the rotating motor 8 is installed at the top end of the frame 1;
the guide rod 9 is arranged on the right side of the sinking assembly 3 and is fixedly connected to the frame 1;
the threaded rod 7 is provided with a threaded sleeve 10 in threaded engagement, the right end of the threaded sleeve 10 is fixedly connected with one end of the transverse plate 4, and the other end of the transverse plate 4 is slidably connected to the guide rod 9.
In this embodiment, the sinking assembly 3 includes a sinking casing 11, a sampling assembly 12, and a connection transmission device 13, where the plurality of sampling assemblies 12 are disposed in the sinking casing 11, and the connection transmission device 13 is disposed at the top end of the sinking casing 11;
a plurality of the sampling assemblies 12 are vertically distributed at equal intervals;
the plurality of sampling assemblies 12 are connected and driven through a belt, and the uppermost sampling assembly 12 is connected and driven with a connecting and driving device 13 through the belt;
a supporting plate 21 is vertically arranged on the right side inside the sinking shell 11, and the supporting plate 21 is used for supporting and fixing the first electric adjusting rod 22 and the second electric adjusting rod 29.
In this embodiment, the connection transmission device 13 includes a micro motor 14, a rotating shaft 15, and a sliding sleeve 16, where the rotating shaft 15 is rotatably connected inside the sinking casing 11, and the rotating shaft 15 extends to the left to one end outside the sinking casing 11 and is fixedly connected with an output shaft of the micro motor 14, the micro motor 14 is fixed outside the sinking casing 11, and the sliding sleeve 16 is slidably sleeved on the rotating shaft 15;
a plurality of outer flower teeth are distributed on the circumference of the middle part of the rotating shaft 15, and the transverse range occupied by the outer flower teeth is larger than the maximum displacement of the sampling renting piece 12 in the working process.
Referring to fig. 3 and 5, in the present embodiment, the sliding sleeve 16 includes a first pulley 17, a bearing 18, a spline sleeve 19, and an adapter plate 20, the first pulley 17 is welded to the outer circumferential surface of the spline sleeve 19, and the right side of the spline sleeve 19 is rotatably connected with the adapter plate 20 through the bearing 18;
the inner ring circumference of the spline sleeve 19 is provided with a plurality of inner spline teeth, the inner spline teeth are engaged with the outer spline teeth in a matching way, that is, the outer spline teeth on the surface of the rotating shaft 15 and the inner spline teeth of the spline sleeve 19 enable the rotating shaft 15 to drive the spline sleeve 19 to rotate, and the spline sleeve 19 is allowed to slide relative to the rotating shaft 15 under the action of the electric adjusting rod I22, so that the position of the belt pulley I17 is adjusted, the belt pulley I and the sampling assembly 12 are always kept in a relatively static state, and smooth sampling work is further ensured;
the upper end of the adapter plate 20 is provided with a circular through hole, and the aperture of the through hole is larger than the outer diameter of the rotating shaft 15;
the lower part of the right end face of the adapter plate 20 is fixedly connected with the telescopic end of the first electric adjusting rod 22, the first electric adjusting rod 22 is arranged on the supporting plate 21, the adapter plate 20 can push the sliding clamping sleeve 16 to slide on the rotating shaft 15 under the action of the first electric adjusting rod 22, meanwhile, the sliding clamping sleeve 16 can rotate relative to the adapter plate 20, so that the transverse position can be changed along with the sampling assembly 12, the first belt pulley 17 is not influenced to rotate through the helical blade 23 in the belt driving sampling assembly 12, and therefore the device can automatically finish multi-point sampling with multiple depths, and the working efficiency is improved.
Referring to fig. 3, in this embodiment, the sampling assembly 12 includes a spiral blade 23, a sampling tube 24, and a second pulley 25, the spiral blade 23 is disposed in the sampling tube 24 in a transverse rotation manner, and the second pulley 25 is mounted at one end of the spiral blade 23 extending rightward to the outside of the sampling tube 24;
the takingThe cross section of the tube 24 isThe left end face of the sampling tube 24 is matched with the inclined plane of the spring door 30 in the sampling process, so that the spring door 30 is jacked up, the transverse part of the sampling tube 24 extends out of the spring door 30 to be in contact with external geology, the sample collection work is completed, the whole process is smoother through the inclined plane matching, and the stability of the device in the working process is improved;
the bottom end of the sampling tube 24 extends into the sample bottle 26 and is communicated with the sample bottle 26, the sample bottle 26 is slidably arranged in an annular frame groove 27, and the annular frame groove 27 is fixed on the inner wall of the sinking shell 11;
the right end of the sampling tube 24 is fixed with a push plate 28 through a plurality of struts, the right end face of the push plate 28 is fixedly connected with the telescopic end of a second electric adjusting rod 29, and the second electric adjusting rod 29 is arranged on the supporting plate 21.
As a preferred embodiment, the top end of the annular frame groove 27 is of an open structure, and the middle of the bottom end thereof is provided with a U-shaped through groove, the groove width of the through groove is smaller than the outer diameter of the bottle bottom of the sample bottle 26 and larger than the outer diameter of the second belt pulley 25, that is, the through groove is used for placing and carrying the sample bottle 26, and the sample bottle 26 can slide relative to the annular frame groove 27, so that the sample bottle 26 and the sampling tube 24 are always in a static state, and the collection of the sample is completed, and meanwhile, the width of the through groove is larger than the outer diameter of the second belt pulley 25, so that the belts between the sampling assemblies 12 and the connecting transmission device 13 are not contacted with the through groove, thereby improving the stability of the device.
In this embodiment, a spring door 30 is provided on the left side of the sinking casing 11, and the number and positions of the spring doors 30 are matched with and correspond to those of the sampling assembly 12;
the lower end surface of the spring door 30 is in an inclined surface structure and is matched with the inclined surface of the left end of the sampling tube 24.
In this embodiment, electromagnetic doors 34 are disposed outside the sinking casing 11, the number and positions of the electromagnetic doors 34 are in one-to-one correspondence with the plurality of sampling assemblies 12, and the electromagnetic doors 34 are used for the staff to take and place the sample bottles 26.
In this embodiment, the driving device 6 includes a stepper motor 31, a receiving socket 32 and a transmission shaft 33, the transmission shaft 33 is rotationally connected to the middle of the receiving socket 32, a driven round gear is mounted at the top end of the transmission shaft 33, the driven round gear is meshed with a driving round gear through a gear, the driving round gear is fixed at the tail end of an output shaft of the stepper motor 31, and the stepper motor 31 is mounted on the transverse plate 4, where it should be noted that the stepper motor 31 not only drives the sinking assembly 3 and the drill bit 5 to rotate to finish the drilling sinking operation, after sinking to a target depth, the stepper motor 31 can rotate at a fixed angle according to a set value, thereby achieving the purpose of collecting multiple sample samples at the same depth, so that the sample detection result is more representative, and the geological sampling effect is further improved.
Specifically, firstly, the device is placed on the ground of the area to be sampled, the whole device is in a stable state through adjustment, the supporting leg is adjusted, the frame 1 is lowered to the lowest position, then, the stepping motor 31 is started, the sinking component 3 is driven to rotate at a constant speed, next, the rotating motor 8 is started, the sinking component 3 starts to slowly descend, at this time, the sinking component 3 gradually descends under the traction of the drill bit 5 until reaching the target depth, the rotating motor 8 and the stepping motor 31 stop working, the sampling component 12 is pushed to the spring door 30 by the electric adjusting rod two 29, the left end of the sampling tube 24 extends out of the spring door 30, the micro motor 14 is started to drive the helical blade 23 to rotate, and samples are collected, and then, the length of the left end of the sampling tube 24 extending out of the spring door 30 is larger than the radius difference between a sampling hole drilled by the drill bit 5 and the sinking shell 11, so that the helical blade 23 in the sampling tube 24 can be contacted with the geological phase of a collection point, and thus, after the collection is completed, the micro motor 14 stops working until reaching the target depth, the electric adjusting rod two ends stop working, the rotating the sampling component 12 and the stepping motor 31 stops working, the sampling component 12 is driven by the electric adjusting rod two, the reset component 12 is driven by the stepping motor 31, the same time, the sample is required to rotate by the sampling component 3, the sample is recovered, the sample can be collected by the sample can be recovered by the sample by the step, and the sample can be recovered by the sample by the time, and the sample can be collected by the sample by the time when the sample by the step.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (1)
1. Drilling equipment convenient to petroleum geology sample detects, its characterized in that: the lifting assembly (2) comprises a threaded rod (7), a rotating motor (8) and a guide rod (9), wherein the threaded rod (7) is rotationally connected to the left side of the frame (1), one end of the threaded rod (7) extending upwards to the outside of the frame (1) is provided with a driven bevel gear, the driven bevel gear is meshed with a drive bevel gear fixed at the tail end of an output shaft of the rotating motor (8), and the rotating motor (8) is mounted at the top end of the frame (1); the guide rod (9) is arranged on the right side of the sinking assembly (3) and is fixedly connected to the frame (1); the threaded rod (7) is meshed with a threaded sleeve (10) through threads, the right end of the threaded sleeve (10) is fixedly connected with one end of the transverse plate (4), and the other end of the transverse plate (4) is connected to the guide rod (9) in a sliding manner;
the top end of the sinking assembly (3) is rotatably arranged on a transverse plate (4) in the middle of the lifting assembly (2), the lifting assembly (2) is slidably connected to the frame (1) and is used for driving the sinking assembly (3) to move up and down, and a drill bit (5) is arranged at the bottom end of the sinking assembly (3) so as to drill a region needing to be sampled;
the sinking assembly (3) comprises a sinking shell (11), a sampling assembly (12) and a connecting transmission device (13), wherein a plurality of sampling assemblies (12) are arranged in the sinking shell (11), and the connecting transmission device (13) is arranged at the top end of the sinking shell (11);
the maximum outer diameter of the drill bit (5) is larger than the maximum outer diameter of the sinking shell (11);
the middle part of the top end of the sinking component (3) is fixedly connected with a driving device (6), and the driving device (6) is used for driving the sinking component (3) to rotate so as to realize multipoint sampling at the same depth;
a plurality of sampling assemblies (12) are vertically distributed at equal intervals; the sampling assemblies (12) are connected and driven through belts, and the uppermost sampling assembly (12) is connected and driven with the connecting and driving device (13) through the belts;
a supporting plate (21) is vertically arranged on the right side inside the sinking shell (11);
the sampling assembly (12) comprises a spiral blade (23), a sampling tube (24) and a belt pulley II (25), the spiral blade (23) is transversely arranged in the sampling tube (24) in a rotating mode, and the spiral blade (23) extends rightwards to one end outside the sampling tube (24) and the belt pulley II (25) is arranged at one end of the outer portion of the sampling tube;
the cross section of the sampling tube (24) isThe left end face of the transverse part is of an inclined surface structure;
the bottom end of the sampling tube (24) extends into the sample bottle (26) and is communicated with the sample bottle (26), the sample bottle (26) is slidably arranged in an annular frame groove (27), and the annular frame groove (27) is fixed on the inner wall of the sinking shell (11); the top end of the annular frame groove (27) is of an opening structure, a U-shaped through groove is formed in the middle of the bottom end of the annular frame groove, the groove width of the through groove is smaller than the outer diameter of the bottle bottom of the sample bottle (26) and larger than the outer diameter of the belt pulley II (25); the through groove is used for placing and bearing the sample bottle (26), the sample bottle (26) can slide relative to the annular frame groove (27), so that the sample bottle (26) and the sampling tube (24) are always in a static state so as to collect samples, and meanwhile, the width of the through groove is larger than the outer diameter of the belt pulley II (25), so that belts between the sampling assemblies (12) and the connecting transmission device (13) are not contacted with the through groove, and the stability of the equipment is improved;
the right end of the sampling tube (24) is fixedly provided with a push plate (28) through a plurality of struts, the right end surface of the push plate (28) is fixedly connected with the telescopic end of a second electric adjusting rod (29), and the second electric adjusting rod (29) is arranged on the supporting plate (21);
a spring door (30) is arranged on the left side of the sinking shell (11), and the number and the positions of the spring doors (30) are matched and correspond to those of the sampling assembly (12);
the lower end face of the spring door (30) is of an inclined plane structure and is matched with the inclined plane of the left end of the sampling tube (24);
the driving device (6) comprises a stepping motor (31), a bearing sleeve seat (32) and a transmission shaft (33), the transmission shaft (33) is rotationally connected to the middle part of the bearing sleeve seat (32), a driven round gear is arranged at the top end of the transmission shaft (33), a driving round gear is meshed with the driven round gear through a gear, the driving round gear is fixed at the tail end of an output shaft of the stepping motor (31), and the stepping motor (31) is arranged on the transverse plate (4); after sinking to the target depth, the stepping motor (31) rotates at a fixed angle according to a set value, so that multi-sample collection under the same depth is realized;
the connecting transmission device (13) comprises a miniature motor (14), a rotating shaft (15) and a sliding clamping sleeve (16), wherein the rotating shaft (15) is rotationally connected inside the sinking shell (11), the rotating shaft (15) extends leftwards to one end outside the sinking shell (11) and is fixedly connected with an output shaft of the miniature motor (14), the miniature motor (14) is fixed outside the sinking shell (11), and the sliding clamping sleeve (16) is sleeved on the rotating shaft (15) in a sliding manner;
a plurality of outer flower teeth are distributed on the circumference of the middle part of the rotating shaft (15), and the transverse range occupied by the outer flower teeth is larger than the maximum displacement of the sampling renting piece (12) in the working process;
the sliding clamping sleeve (16) comprises a belt pulley I (17), a bearing (18), a spline sleeve (19) and an adapter plate (20), wherein the belt pulley I (17) is welded on the outer circumferential surface of the spline sleeve (19), and the right side of the spline sleeve (19) is rotationally connected with the adapter plate (20) through the bearing (18);
the circumference of the inner ring of the spline sleeve (19) is provided with a plurality of inner flower teeth which are matched and meshed with the outer flower teeth;
the upper end of the adapter plate (20) is provided with a circular through hole, and the aperture of the through hole is larger than the outer diameter of the rotating shaft (15);
the lower part of the right end surface of the adapter plate (20) is fixedly connected with the telescopic end of the first electric adjusting rod (22), and the first electric adjusting rod (22) is arranged on the supporting plate (21); the adapter plate (20) pushes the sliding clamping sleeve (16) to slide on the rotating shaft (15) under the action of the first electric adjusting rod (22), and meanwhile, the sliding clamping sleeve (16) rotates relative to the adapter plate (20) so as to change the transverse position along with the sampling assembly (12) without influencing the rotation of the first belt pulley (17) through a spiral blade (23) in the belt driving sampling assembly (12), so that the device can automatically complete multi-depth multipoint sampling;
the outside of the sinking shell (11) is provided with electromagnetic doors (34), and the number and the positions of the electromagnetic doors (34) are in one-to-one correspondence with the sampling assemblies (12);
when a sample is collected, the length of the left end of the sampling tube (24) extending out of the spring door (30) is larger than the difference between the radius of the sampling hole drilled by the drill bit (5) and the radius of the sinking shell (11);
the device is placed on the ground of a region to be sampled in operation, the whole device is in a stable state through adjustment, supporting legs are adjusted, a frame descends to the lowest position, then a stepping motor is started, a sinking assembly is driven to rotate at a constant speed, a rotating motor is started, the sinking assembly starts to slowly descend, at the moment, the sinking assembly gradually descends under the traction of a drill bit until reaching a target depth, the rotating motor and the stepping motor stop working, a second electric adjusting rod pushes the sampling assembly to a spring door, the left end of the sampling tube extends out of the spring door, a micro motor is started to drive a spiral blade to rotate to collect samples, the length of the left end of the sampling tube extending out of the spring door is larger than the difference between the radius of a sampling hole drilled by the drill bit and the sinking shell, so that the spiral blade in the sampling tube can be in geological contact with a collecting point, sufficient sample capacity is guaranteed, the micro motor stops working after the collection is completed, the second electric adjusting rod resets the sampling assembly, then the sinking assembly is driven by the stepping motor to rotate a certain angle, the sampling assembly collects samples, the samples are repeated until the same set depth is reached, the position is moved by the stepping motor, the sampling assembly is driven to the position of the sinking assembly, and the sample is restored to the original position, and the sample is taken out.
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