CN115014849A - Core sampling device for engineering geological investigation - Google Patents
Core sampling device for engineering geological investigation Download PDFInfo
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- CN115014849A CN115014849A CN202210640560.8A CN202210640560A CN115014849A CN 115014849 A CN115014849 A CN 115014849A CN 202210640560 A CN202210640560 A CN 202210640560A CN 115014849 A CN115014849 A CN 115014849A
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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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
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a core sampling device for engineering geological exploration, which belongs to the field of geological exploration and comprises a main body bracket, wherein the main body bracket comprises a first bracket and a second bracket which are fixed with each other, the inner side of the first bracket is provided with a first lifting plate through a lifting screw rod, the inner side of the second bracket is provided with a second lifting plate through a lifting screw rod, and the lifting screw rods are driven by a lifting motor; the first lifting plate is rotatably provided with a tubular drilling device, and the tubular drilling device is driven by a first rotating mechanism; the second lifting plate is rotatably provided with a tubular partition lifter, and the tubular partition lifter is driven by a second rotating mechanism. The sampling device is suitable for sampling hard rock, and during sampling, the rock drill hole is firstly formed into a columnar rock core, then the columnar rock core is separated to form a semi-columnar rock core, and the semi-columnar rock core is taken out from the drill hole, so that the rock core is rapidly sampled, and the subsequent detection operation is facilitated.
Description
Technical Field
The invention relates to the technical field of geological exploration, in particular to a core sampling device for engineering geological exploration.
Background
The geological exploration can be understood as geological work in a broad sense, and is the investigation and research work on geological conditions such as rocks, stratum structures, mineral products, underground water, landforms and the like in a certain area by applying geological exploration methods such as mapping, geophysical exploration, geochemical prospecting, drilling, pit exploration, sampling test, geological remote sensing and the like according to the needs of economic construction, national defense construction and scientific and technical development.
Through retrieval, the Chinese patent No. CN 104213860B discloses an auxiliary connector for taking out a soil core sample in a core tube for engineering geological exploration, which comprises a core tube, a driving rotating nut and a connector, wherein the upper end of the core tube is provided with a high-pressure tube connecting part for connecting with a high-pressure tube of a water pump of a drilling machine, and the lower end of the core tube extends into the driving rotating nut and is connected with the driving rotating nut in a hanging way; the upper end of the driving rotating nut is provided with a hanging connection hole for hanging and connecting the core punching tube, the lower end of the driving rotating nut is provided with a threaded hole, the hanging connection hole is communicated with the threaded hole, and an internal thread is arranged in the threaded hole; the connecting head consists of a screw rod positioned at the upper end, a main body positioned at the middle part and a rock core pipe connecting part positioned at the lower end and used for being connected with a rock core pipe, and the screw rod is screwed into a threaded hole of the active rotating nut to connect the active rotating nut with the connecting head; the auxiliary catcher is connected with a high-pressure pipe of the water pump and the rock core pipe when in use, and the water pressure of the water pump is utilized to punch out the soil core sample in the rock core pipe.
The reconnaissance sampling device in the prior art has the following defects in actual use: the existing sampling means is suitable for sampling soft soil, but for sampling rock, the sampling device is not suitable for drilling and core taking operation of the rock due to the hard texture, so the invention provides the core sampling device for engineering geological exploration.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a core sampling device for engineering geological exploration.
In order to achieve the purpose, the invention adopts the following technical scheme:
a core sampling device for engineering geological investigation comprises a main body support, wherein the main body support comprises a first support and a second support which are fixed with each other, a first lifting plate is arranged on the inner side of the first support through a lifting screw rod, a second lifting plate is arranged on the inner side of the second support through a lifting screw rod, and the lifting screw rods are driven by lifting motors;
the first lifting plate is rotatably provided with a tubular drilling device, and the tubular drilling device is driven by a first rotating mechanism;
the second lifting plate is rotatably provided with a tubular partition lifter, and the tubular partition lifter is driven by a second rotating mechanism.
Furthermore, the tubular drilling device comprises a main pipe, wherein the bottom of the main pipe is provided with a crushing cone tooth, and the top of the main pipe is rotatably installed with the first lifting plate;
the tubular segmentation lifter comprises a rotating pipe, the top of the rotating pipe is rotatably installed with the second lifting plate, two arc-shaped fixing plates are symmetrically fixed at the bottom of the rotating pipe, and two arc-shaped clamping plates are symmetrically and movably arranged between the two arc-shaped fixing plates;
the inner wall of the rotating pipe is symmetrically and rotatably provided with two steering pulleys, the inner walls of the bottom ends of the two arc-shaped fixing plates are respectively and rotatably provided with one steering pulley, namely the total number of the four steering pulleys is four, the inner wall of the rotating pipe is rotatably provided with a rotating shaft, the rotating shaft is provided with a rotating wheel, the four steering pulleys and one rotating wheel are jointly wound with a cutting steel wire, one end of the rotating shaft is installed with the driving end of a cutting motor, and the cutting motor is installed on the outer wall of the rotating pipe;
the bottom of rotating tube rotates installs two-way lead screw, and two-way lead screw has two in total the top of arc splint is simultaneously with two-way lead screw thread installations, the one end of two-way lead screw is installed with the drive end of centre gripping motor, the outer wall at the rotating tube is installed to the centre gripping motor.
Furthermore, four lifting screw rods are rotatably mounted on the inner walls of the first support and the second support, a driven gear is mounted at the end of each lifting screw rod, a driving gear is mounted at the driving end of the lifting motor, and the driving gear is meshed with the driven gear.
Further, the first rotating mechanism comprises a first motor installed on the first lifting plate, a first gear is installed at the driving end of the first motor, a first gear ring is fixedly sleeved on the outer wall of the top of the tubular drilling device, and the first gear ring is meshed with the first gear;
the second rotating mechanism comprises a second motor installed on the second lifting plate, a second gear is installed at the driving end of the second motor, a second gear ring is fixedly sleeved on the outer wall of the top of the rotating pipe, and the second gear ring is meshed with the second gear.
Furthermore, L-shaped plates are rotatably arranged at two ends of the bidirectional screw rod and fixedly arranged on the outer walls of the L-shaped plates and the rotating pipe.
Further, the water tank is installed at the top of main part support, the water tank is connected with the water pipe, the top of tubulose perforator is equipped with the drilling mouth of pipe, the top that the lifting mechanism was cut apart to the tubulose is equipped with the rotation mouth of pipe, the water pipe is used for cutting apart the cooling effect of lifting mechanism when rotating in order to realize tubulose perforator and tubulose to the water in the water tank respectively to the drilling mouth of pipe and the transport of rotation mouth of pipe department.
Further, the radian and the thickness homogeneous phase of arc fixed plate and arc splint equal, the bottom place height that highly is greater than the arc fixed plate of arc splint, the top height that highly is greater than the arc fixed plate of arc splint is located, offers the breach groove that corresponds with arc splint in the bottom of rotating tube, the top accessible breach groove of arc splint removes to the inboard center of rotating tube.
Further, universal wheels are installed at the bottoms of the first support and the second support and used for moving the device integrally, and the universal wheels can be braked.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the core sampling device, the tubular drill is arranged to drill the rock to form the columnar core, then the columnar core is vertically cut and annularly combined through the tubular cutting lifter so as to be cut into the semi-columnar core, and the cut semi-columnar core is clamped and taken out from the drill hole, so that the core sampling is completed, and the subsequent core detection is facilitated.
2. In the drilling process of the rock and the cutting process of the columnar core, the tubular drilling device and the tubular segmentation lifter can be cooled and dedusted respectively, so that the abrasion of the device and the pollution to the environment are reduced, and the device is more environment-friendly.
In conclusion, the sampling device is suitable for sampling hard rock, and during sampling, the rock drill hole is firstly formed into the columnar rock core, then the columnar rock core is separated to form the semi-columnar rock core, and the semi-columnar rock core is taken out from the drill hole, so that the rapid sampling of the rock core is realized, and the subsequent detection operation is facilitated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic diagram of the overall structure of a core sampling device for engineering geological exploration according to the present invention;
FIG. 2 is a schematic view of a tubular reamer as drilling;
FIG. 3 is a schematic view of a tubular split riser as it is inserted into a borehole to separate a columnar core;
FIG. 4 is a schematic view of the tubular split riser as it is being split into semi-cylindrical cores being raised out of the borehole;
FIG. 5 is a schematic view of the first rotary mechanism driving the tubular reamer in rotation;
FIG. 6 is a schematic view of the second rotation mechanism driving the tubular split elevator in rotation;
FIG. 7 is a schematic view of a tubular split riser;
FIG. 8 is an internal cross-sectional view of the tubular split riser;
FIG. 9 is a schematic view of the rotational drive of the cutter wire;
FIG. 10 is a schematic view of a cut of a tubular split lifter cylindrical core;
figure 11 is a schematic view of a columnar core being cut with a semi-columnar core.
In the figure: the device comprises a first support 1, a second support 2, a lifting screw rod 3, a lifting motor 4, a first lifting plate 5, a second lifting plate 6, a tubular borer 7, a first rotating mechanism 8, a second rotating mechanism 9, a tubular cutting lifter 10, a columnar core 11, a rotating pipe 12, an arc-shaped fixing plate 13, an arc-shaped clamping plate 14, a steering pulley 15, a cutting steel wire 16, a rotating wheel 17, a rotating shaft 18, a cutting motor 19, a bidirectional screw rod 20, a clamping motor 21, a semi-columnar core 22, a drilling pipe orifice 23, a rotating pipe orifice 24, a water tank 25, a water pipe 26, a first motor 81, a first gear 82, a first toothed ring 83, a second motor 91, a second gear 92 and a second toothed ring 93.
Detailed Description
The technical solution 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.
Referring to fig. 1-11, a core sampling device for engineering geological investigation, includes the main part support, and the main part support includes first support 1 and second support 2 of reciprocal anchorage, and the universal wheel is all installed to the bottom of first support 1 and second support 2 for the bulk movement of device, and the universal wheel adopts the universal wheel that can brake. The main part support realizes convenient removal through each universal wheel of bottom, treats that the main part support removes to the sampling point after, locks the universal wheel to put the stable sampling point of putting of device.
A first lifting plate 5 is arranged on the inner side of the first bracket 1 through a lifting screw rod 3, a second lifting plate 6 is arranged on the inner side of the second bracket 2 through the lifting screw rod 3, and the lifting screw rods 3 are all driven by a lifting motor 4;
in this embodiment, four lifting screws 3 are rotatably mounted on the inner walls of the first support 1 and the second support 2, a driven gear is mounted at the end of each lifting screw 3, a driving gear is mounted at the driving end of the lifting motor 4, and the driving gear is meshed with the driven gear.
The first lifting plate 5 on the inner side of the first support 1 is lifted through the rotation of the four lifting screw rods 3, and the rotation of the lifting screw rods 3 is realized through the mutual meshing of the driving gear and the driven gear driven by the lifting motor 4.
The first lifting plate 5 is rotatably provided with a tubular drilling device 7, the tubular drilling device 7 is lifted along with the first lifting plate 5, and the tubular drilling device 7 is driven by a first rotating mechanism 8; the first rotating mechanism 8 comprises a first motor 81 arranged on the first lifting plate 5, a driving end of the first motor 81 is provided with a first gear 82, the outer wall of the top of the tubular borer 7 is fixedly sleeved with a first gear ring 83, and the first gear ring 83 is meshed with the first gear 82;
the first motor 81 drives the first gear 82 to be meshed with the first toothed ring 83 for transmission, so that the tubular borer 7 can be controlled to rotate relative to the first lifting plate 5, the tubular borer 7 comprises a main pipe, crushing conical teeth are arranged at the bottom of the main pipe, and the top of the main pipe is rotatably installed with the first lifting plate 5; the rotating tubular borer 7 drills a hole in the rock mass by using the broken cone teeth at the bottom and forms a columnar core 11 in the drilled hole after drilling.
The second lifting plate 6 is rotatably mounted with a tubular split lifter 10, and the tubular split lifter 10 is driven by a second rotating mechanism 9. The second lifting plate 6 is lifted when the corresponding lifting screw rod 3 rotates, and the tubular division lifter 10 is lifted along with the second lifting plate 6;
the second rotating mechanism 9 comprises a second motor 91 arranged on the second lifting plate 6, a second gear 92 is arranged at the driving end of the second motor 91, a second gear ring 93 is fixedly sleeved on the outer wall of the top of the rotating pipe 12, and the second gear ring 93 and the second gear 92 are meshed with each other.
The second motor 91 drives the second gear 92 and the second gear ring 93 to be meshed with each other, so that the tubular division lifter 10 is rotated;
the tubular dividing lifter 10 comprises a rotating pipe 12, the top of the rotating pipe 12 is rotatably installed with the second lifting plate 6, two arc-shaped fixing plates 13 are symmetrically fixed at the bottom of the rotating pipe 12, and two arc-shaped clamping plates 14 are symmetrically and movably arranged between the two arc-shaped fixing plates 13;
two steering pulleys 15 are symmetrically and rotatably mounted on the inner wall of the rotating pipe 12, one steering pulley 15 is rotatably mounted on the inner wall of the bottom end of each of the two arc-shaped fixing plates 13, namely the total number of the steering pulleys 15 is four, a rotating shaft 18 is rotatably arranged on the inner wall of the rotating pipe 12, a rotating wheel 17 is mounted on the rotating shaft 18, a cutting steel wire 16 is wound on each of the four steering pulleys 15 and the rotating wheel 17, one end of the rotating shaft 18 is mounted at the driving end of a cutting motor 19, and the cutting motor 19 is mounted on the outer wall of the rotating pipe 12;
the cutting motor 19 drives the rotating shaft 18 and the rotating wheel 17 to rotate, the rotating wheel 17 is used for driving the cutting steel wire 16, the tubular cutting lifter 10 gradually enters the drilled hole along with the lifting of the second lifting plate 6, and the cutting steel wire 16 is used for cutting the columnar rock core 11 in the drilled hole;
the cutting steel wire 16 firstly vertically cuts through the columnar core 11, after cutting to a certain depth, the tubular cutting lifter 10 is controlled to rotate, at the moment, the cutting steel wire 16 carries out rotary transverse cutting on the columnar core 11, and the upper portion of the columnar core 11 is prevented from being cut into the semi-columnar core 22.
The bottom of the rotating tube 12 is rotatably provided with two bidirectional screw rods 20, the total number of the two bidirectional screw rods 20 is two, the tops of the two arc-shaped clamping plates 14 are simultaneously in threaded installation with the two bidirectional screw rods 20, one end of each bidirectional screw rod 20 is installed with the driving end of a clamping motor 21, and the clamping motor 21 is installed on the outer wall of the rotating tube 12.
Two ends of the bidirectional screw rod 20 are rotatably provided with L-shaped plates, and the L-shaped plates are fixedly arranged with the outer wall of the rotating pipe 12.
After cutting, the clamping motor 21 drives the bidirectional screw rod 20 to rotate, and the bidirectional screw rod 20 and the arc-shaped clamping plate 14 are used for driving;
in this embodiment, arc fixed plate 13 equals with arc splint 14's radian and thickness homoenergetic, and arc splint 14's bottom is at the height at the bottom that highly is greater than arc fixed plate 13, and arc splint 14's top highly is greater than arc fixed plate 13's top at the height, offers the breach groove that corresponds with arc splint 14 in the bottom of rotating tube 12, and arc splint 14's top accessible breach groove removes to rotating tube 12's inboard center.
Utilize two-way lead screw 20's rotation, can drive two arc splint 14, when two arc splint 14 were close to each other, can carry out the centre gripping to the semi-columnar core 22 after the cutting, the raiser 10 that cuts apart is controlled to the tubulose at last and rises, can take out semi-columnar core 22 from drilling, makes it and rock mass and column core 11 separation, takes off semi-columnar core 22 afterwards and can be used for subsequent detection.
As shown in fig. 1, a water tank 25 is further installed at the top of the main body support, the water tank 25 is connected with a water pipe 26, the top of the tubular drilling device 7 is provided with a drilling nozzle 23, the top of the tubular partition lifting device 10 is provided with a rotating nozzle 24, and the water pipe 26 is used for conveying the water in the water tank 25 to the drilling nozzle 23 and the rotating nozzle 24 respectively so as to realize the cooling effect of the tubular drilling device 7 and the tubular partition lifting device 10 during rotation.
When drilling, the water pipe 26 is aligned with the drilling pipe opening 23, so that the tubular drilling device 7 can be cooled, dust is prevented from splashing, and annular pollution is reduced.
When cutting columnar core 11, aim at water pipe 26 and rotate mouth of pipe 24, can cut apart lifting mechanism 10 to the tubulose and cool down to prevent that the dust from splashing equally, reduce annular pollution.
Claims (8)
1. The core sampling device for engineering geological exploration comprises a main body support and is characterized in that the main body support comprises a first support (1) and a second support (2) which are fixed with each other, a first lifting plate (5) is installed on the inner side of the first support (1) through a lifting screw rod (3), a second lifting plate (6) is installed on the inner side of the second support (2) through the lifting screw rod (3), and the lifting screw rods (3) are all driven by a lifting motor (4);
the first lifting plate (5) is rotatably provided with a tubular drilling device (7), and the tubular drilling device (7) is driven by a first rotating mechanism (8);
the second lifting plate (6) is rotatably provided with a tubular partition lifter (10), and the tubular partition lifter (10) is driven by a second rotating mechanism (9).
2. The core sampling device for engineering geological exploration according to claim 1, characterized in that said tubular borer (7) comprises a main pipe, the bottom of said main pipe is provided with breaking cone teeth, the top of said main pipe is rotatably mounted with a first lifting plate (5);
the tubular partition lifter (10) comprises a rotating pipe (12), the top of the rotating pipe (12) is rotatably installed with the second lifting plate (6), two arc-shaped fixing plates (13) are symmetrically fixed at the bottom of the rotating pipe (12), and two arc-shaped clamping plates (14) are symmetrically and movably arranged between the two arc-shaped fixing plates (13);
the inner wall of the rotating pipe (12) is symmetrically and rotatably provided with two steering pulleys (15), the inner walls of the bottom ends of the two arc-shaped fixing plates (13) are respectively and rotatably provided with one steering pulley (15), namely the total number of the steering pulleys (15) is four, the inner wall of the rotating pipe (12) is rotatably provided with a rotating shaft (18), the rotating shaft (18) is provided with a rotating wheel (17), the four steering pulleys (15) and one rotating wheel (17) are jointly wound with a cutting steel wire (16), one end of the rotating shaft (18) is installed at the driving end of a cutting motor (19), and the cutting motor (19) is installed on the outer wall of the rotating pipe (12);
the bottom of rotating tube (12) is rotated and is installed two-way lead screw (20), and two-way lead screw (20) have two in total the top of arc splint (14) is simultaneously with two-way lead screw (20) screw thread installations, the drive end installation of the one end and the centre gripping motor (21) of two-way lead screw (20), the outer wall at rotating tube (12) is installed in centre gripping motor (21).
3. The core sampling device for engineering geological investigation according to claim 1 or 2, characterized in that four lifting screws (3) are rotatably mounted on the inner walls of the first bracket (1) and the second bracket (2), a driven gear is mounted at the end of each lifting screw (3), a driving gear is mounted at the driving end of the lifting motor (4), and the driving gear and the driven gear are meshed with each other.
4. The core sampling device for engineering geological investigation according to claim 2, characterized in that the first rotating mechanism (8) comprises a first motor (81) mounted on the first lifting plate (5), the driving end of the first motor (81) is provided with a first gear (82), the top outer wall of the tubular drill (7) is fixedly provided with a first toothed ring (83), and the first toothed ring (83) is meshed with the first gear (82);
second rotary mechanism (9) is including installing second motor (91) on second lifter plate (6), second gear (92) are installed to the drive end of second motor (91), the fixed cover of top outer wall of rotating-tube (12) is equipped with second ring gear (93), second ring gear (93) and second gear (92) intermeshing.
5. The core sampling device for engineering geological investigation of claim 2, characterized in that both ends of the bidirectional screw rod (20) are rotatably installed with L-shaped plates, and the L-shaped plates are fixedly installed with the outer wall of the rotating pipe (12).
6. The core sampling device for engineering geological investigation of claim 1, characterized in that a water tank (25) is installed on the top of the main body support, a water pipe (26) is connected to the water tank (25), a drilling nozzle (23) is arranged on the top of the tubular drill (7), a rotating nozzle (24) is arranged on the top of the tubular partition lifter (10), and the water pipe (26) is used for conveying the water in the water tank (25) to the drilling nozzle (23) and the rotating nozzle (24) respectively so as to realize the cooling effect of the tubular drill (7) and the tubular partition lifter (10) during rotation.
7. The core sampling device for engineering geological investigation of claim 2, characterized in that the radian and thickness of the arc-shaped fixing plate (13) and the arc-shaped clamping plate (14) are equal, the height of the bottom end of the arc-shaped clamping plate (14) is greater than the height of the bottom end of the arc-shaped fixing plate (13), the height of the top end of the arc-shaped clamping plate (14) is greater than the height of the top end of the arc-shaped fixing plate (13), the bottom of the rotating tube (12) is provided with a notch groove corresponding to the arc-shaped clamping plate (14), and the top of the arc-shaped clamping plate (14) can move to the inner center of the rotating tube (12) through the notch groove.
8. The core sampling device for engineering geological investigation according to claim 1, characterized in that universal wheels are mounted at the bottom of the first support (1) and the second support (2) for integral movement of the device, and the universal wheels are brakable universal wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210640560.8A CN115014849B (en) | 2022-06-07 | 2022-06-07 | Core sampling device for engineering geological investigation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210640560.8A CN115014849B (en) | 2022-06-07 | 2022-06-07 | Core sampling device for engineering geological investigation |
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| CN115014849A true CN115014849A (en) | 2022-09-06 |
| CN115014849B CN115014849B (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210640560.8A Active CN115014849B (en) | 2022-06-07 | 2022-06-07 | Core sampling device for engineering geological investigation |
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| CN116905968A (en) * | 2023-09-08 | 2023-10-20 | 中交第一航务工程局有限公司 | Beach rock drilling device |
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|---|---|---|---|---|
| CN116905968A (en) * | 2023-09-08 | 2023-10-20 | 中交第一航务工程局有限公司 | Beach rock drilling device |
| CN116905968B (en) * | 2023-09-08 | 2023-12-12 | 中交第一航务工程局有限公司 | Beach rock drilling device |
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| Publication number | Publication date |
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| CN115014849B (en) | 2023-09-19 |
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