CN109187081A - A kind of soil sample acquisition device used for geological prospecting - Google Patents
A kind of soil sample acquisition device used for geological prospecting Download PDFInfo
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- CN109187081A CN109187081A CN201811372874.4A CN201811372874A CN109187081A CN 109187081 A CN109187081 A CN 109187081A CN 201811372874 A CN201811372874 A CN 201811372874A CN 109187081 A CN109187081 A CN 109187081A
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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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Abstract
The invention discloses a kind of soil sample acquisition devices used for geological prospecting, including rack, the rack is arranged in convex, the adjustable column being vertically arranged is threaded at left and right sides of the bottom of the rack, screw rod is bolted at the top of the rack, the bottom of the screw rod is fixed with first motor, the inner cavity left and right sides of the rack offers sliding slot, support plate is connected between two sliding blocks, the bottom of the first motor is connected to the top of support plate, the output end of the first motor is connected with shaft, pass through the effect of drill bit and broken blade, soil horizon is pulverized, then soil sample moves up under spiral propeller effect, soil is pushed in sampling tank and moved up, so that the soil of push up is fallen by the second screw shell to the sampling box being obliquely installed, it is collected, and the second screw shell and sampling box Between be threadedly coupled, it is convenient that disassembly installation is carried out to it so that convenient replace sampling box when acquiring the soil of different depth.
Description
Technical field
The present invention relates to soil sample acquisition technique field, specially a kind of soil sample acquisition device used for geological prospecting.
Background technique
Currently, building equal excavations place in subway work and room, needs to be acquired soil sample and carry out geology
The activities such as check of foundation subsoil exploration, however, existing soil sample acquisition device is when in use, structure is simple, more single using function, and moves
Flowing mode is more inconvenient, and staff acquires soil sample deep-controlled and inconvenient, and existing soil sample acquisition device
It is transferred to soil sample storage bin after often first acquiring soil sample at one, then carries out next acquisition, this mode increases soil sample
The number of unloading increases the contaminated possibility of soil sample.
Summary of the invention
The purpose of the present invention is to provide a kind of soil sample acquisition devices used for geological prospecting, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of soil sample acquisition device used for geological prospecting, including
Rack, the rack are arranged in convex, are threaded with the adjustable column being vertically arranged at left and right sides of the bottom of the rack,
Screw rod is bolted at the top of the rack, the bottom of the screw rod is fixed with first motor, and the inner cavity left and right sides of the rack is opened
It is sliding in the sliding slot to have sliding block equipped with sliding slot, support plate, the bottom of the first motor are connected between two sliding blocks
Portion is connected to the top of support plate, and the output end of the first motor is connected with shaft, and the bottom of the support plate, which is connected with, adopts
Sample bucket, the base circle of the shaft are equipped with broken blade, and the bottom end of the shaft is also connected with drill bit, the shaft
On be connected with spiral propeller, be equipped with the second screw shell, second screw thread at left and right sides of the upper half of the sampling tank
The other side of sleeve is bolted with sampling box；It is provided with fixed plate above the first motor, in the fixed plate close to described
The edge of screw rod is provided with sliding rail, it is provided with fixed automatically controlled telescopic rod at sliding rail edge, is provided with cunning on the sliding rail
Block is provided with the second motor on the sliding block, and the output shaft of second motor is fixedly connected with thread head, in the support plate
Lower section is fixedly installed third motor close to the position of the acquisition bucket, is provided with second on the output shaft of the third motor
Gear, the position that the second gear is corresponded on the acquisition bucket is fixedly installed first gear, under the first gear
It is provided with drainage conduit on the acquisition bucket of side, flowmeter is internally provided in the drainage conduit, control is provided with above the rack
Panel processed, the control panel are built-in with controller.
Preferably, the controller and the first motor, the second motor, third motor, flowmeter and automatically controlled flexible
Bar is electrically connected, and has automatic control mode key and manual mode key in the control panel.
Preferably, external screw thread is uniformly equipped on the adjustable column, the lower section that the adjustable column is located at pedestal is bolted with
First screw shell, the top of the adjustable column are fixedly connected with the first turntable, and the bottom of first screw shell is connected with
Circular support seat, the tapered setting in the bottom of the adjustable column.
This, which is arranged in the bottom reeve soil for making adjustable column by rotating the first turntable, is fixed rack, and adjusts
The tapered setting in the bottom of segmented column, so that facilitating the height difference according to soil to adjust two adjustable columns and be separately inserted in soil
Depth.
Preferably, the inboard that the bottom of the rack is located at adjustable column is equipped with universal wheel, the top installation of the screw rod
There is the second turntable.
Preferably, the shaft passes through support plate and sampling tank is stretched out in the bottom of the shaft.
Preferably, the side front end face of the rack is equipped with graduation mark.
This setting can carry out accurately controlling the working depth of drill bit by scale Workers.
Preferably, the left and right sides of the sampling tank be provided with the consistent through-hole of screw shell diameter, taken described in two
Sample box is obliquely installed.
This setting sampling box is heeling condition, allows to preferably collect soil.
The present invention also provides a kind of soil sample acquisition method according to a kind of above-mentioned soil sample acquisition device used for geological prospecting, tools
Body the following steps are included:
Manual mode and automatic mode are selected in control panel；
When manual mode, is rotated by the second turntable and screw rod is driven to enter the first depth, first is then opened in control panel
Motor rotation is sampled, and after sampling, controller, which automatically controls, opens the drainage conduit, when flowmeter detects soil sample stream
When amount is zero, the drainage conduit and the first motor are closed to complete the acquisition of the first depth soil sample；Then again by second
Turntable rotation drives screw rod to enter the second depth, repeats the soil sample collection process of above-mentioned first depth；
When automatic mode, automatic mode is selected by control panel, and the first depth, the second depth are set in control panel,
It is provided with rear controller to be controlled automatically, the controller control automatically controlled telescopic rod elongation first is so that the thread head supports
The screw rod is connect, and controls the second motor and rotates so that drill bit enters to the first depth, then controller control described first is electric
Machine rotation carries out soil sample acquisition, and after the first depth soil sample acquires, controller controls the drainage conduit and opens, and makes described
The flowmeter that first motor works on into the drainage conduit detects that soil sample flow is zero, and then controller controls the row
Expects pipe closes and stops the first motor, and then controller controls the second motor rotation drive drill bit and enters to second deeply
Degree, while controlling the third motor and rotating so that the sampling tank rotates so that discharge port is directed at next sampling box, then
Controller controls the first motor rotation and carries out soil sample acquisition, after the second depth soil sample acquires, described in controller control
Drainage conduit is opened, and the flowmeter that the first motor is worked on into the drainage conduit detects that soil sample flow is
Zero, then controller controls the drainage conduit and closes and stop the first motor.
Compared with prior art, the beneficial effects of the present invention are: a kind of soil sample acquisition device used for geological prospecting of the present invention, leads to
It crosses universal wheel and device is moved to the place for needing to acquire, inject the bottom of adjustable column right in soil
Rack is fixed, and the working depth of fan-shaped drill bit, and the one of rack are adjusted by the second turntable of rotation and screw rod
Side front end face is equipped with graduation mark, and staff can carry out accurately controlling the working depth of drill bit, then passes through the first electricity of starting
Machine drives the rotation of shaft, broken blade, drill bit and spiral propeller, passes through the effect of drill bit and broken blade, soil horizon quilt
It crushes, then soil sample moves up under spiral propeller effect, and soil is pushed in sampling tank and moved up, so that push is got on
Soil fall into the sampling box being obliquely installed by the second screw shell, it is collected, and the second screw shell
Be threadedly coupled between sampling box, it is convenient that disassembly installation is carried out to it so that it is convenient when acquiring the soil of different depth to adopting
Sample box is replaced, and has very high practicability, greatly improves a kind of use function of soil sample acquisition device used for geological prospecting
Energy property, guarantees its using effect and utilization benefit, is suitble to be widely popularized.Even more important, hand can be realized by control panel
Dynamic and automatic both of which, and in manually and automatically mode, acquisition bucket rotation can be automatically controlled by controller, from
And make discharge port be directed at next collecting cassette, so as to carry out more depth acquisitions, and after acquisition, by controller,
Third motor, flowmeter, drainage conduit are equipped with, and can empty the remaining soil sample in each depth, thus will not be under
The soil sample of one depth generates pollution, and can according to need the multiple depth automatic collections of setting.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of soil sample acquisition device used for geological prospecting of the present invention；
Fig. 2 is a kind of sampling tank side structure schematic view of soil sample acquisition device used for geological prospecting of the present invention；
Fig. 3 is enlarged structure schematic diagram at A in a kind of Fig. 1 of soil sample acquisition device used for geological prospecting of the present invention；
Fig. 4 is that the present invention has automatic control structure volume detailed construction schematic diagram.
In figure: 1 rack, 2 universal wheels, 3 adjustable columns, 4 first screw shells, 5 circular support seats, 6 first turntables, 7 screw rods,
8 second turntables, 9 first motors, 10 sliding slots, 11 sliding blocks, 12 support plates, 13 sampling tanks, 14 shafts, 15 broken blades, 16 drill bits,
17 second screw shells, 18 sampling boxes, 19 spiral propellers, 20 graduation marks, 21 automatically controlled telescopic rods, 22 sliding blocks, 23 second motors,
24 thread heads, 25 fixed plates, 26 first gears, 27 third motors, 28 second gears, 29 drainage conduits, 30 control panels.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of soil sample acquisition device used for geological prospecting, including machine
Frame 1, the rack 1 are arranged in convex, are threaded with the adjustable column being vertically arranged at left and right sides of the bottom of the rack 1
3, the top of the rack 1 is bolted with screw rod 7, and the bottom of the screw rod 7 is fixed with first motor 9, and the inner cavity of the rack 1 is left
Right side opening is equipped with sliding slot 10, and slipping in the sliding slot 10 has sliding block 11, is connected with support plate 12 between two sliding blocks 11,
The bottom of the first motor 9 is connected to the top of support plate 12, and the output end of the first motor 9 is connected with shaft 14, institute
The bottom for stating support plate 12 is connected with sampling tank 13, and the base circle of the shaft 14 is equipped with broken blade 15, the shaft
14 bottom end is also connected with drill bit 16, and spiral propeller 19, the upper half of the sampling tank 13 are connected in the shaft 14
It is equipped with the second screw shell 17 at left and right sides of portion, the other side of second screw shell 17 is bolted with sampling box 18.
Specifically, being uniformly equipped with external screw thread on the adjustable column 3, the lower section that the adjustable column 3 is located at pedestal 1 is spirally connected
There is the first screw shell 4, the top of the adjustable column 3 is fixedly connected with the first turntable 6, the bottom of first screw shell 4
It is connected with circular support seat 5, the tapered setting in bottom of the adjustable column 3.
Specifically, the inboard that the bottom of the rack 1 is located at adjustable column 3 is equipped with universal wheel 2, the top of the screw rod 7
Second turntable 8 is installed.
Specifically, the shaft 14 passes through support plate 12 and sampling tank 13 is stretched out in the bottom of the shaft 14.
Specifically, the side front end face of the rack 1 is equipped with graduation mark 20.
Specifically, the left and right sides of the sampling tank 13 is provided with and the consistent through-hole of 17 diameter of screw shell, two institutes
Sampling box 18 is stated to be obliquely installed.
Working principle: a kind of soil sample acquisition device used for geological prospecting of the present invention, in use, device is moved by universal wheel 2
The place acquired to needs is moved, makes that rack is fixed in the bottom reeve soil of adjustable column 3 by rotating the first turntable 6,
The working depth of fan-shaped drill bit 16, and the side front end face of rack 1 are adjusted by the second turntable 8 of rotation and screw rod 7
Equipped with graduation mark 20, staff can carry out accurately controlling the working depth of drill bit 16, then pass through starting 9 band of first motor
The rotation of turn axis 14, broken blade 15, drill bit 16 and spiral propeller 19, by the effect of drill bit 16 and broken blade 15,
Soil horizon is pulverized, and then soil sample moves up under the effect of spiral propeller 19, and soil is pushed in sampling tank 13 and moved up,
So that the soil of push up is fallen by the second screw shell 17 to the sampling box 18 being obliquely installed, it is collected,
And it is threadedly coupled between the second screw shell 17 and sampling box 18, it is convenient that disassembly installation is carried out to it, so that convenient acquiring
Sampling box 18 is replaced when the soil of different depth.
Even more important, applicant has found when in use, when manual mode, needs the waiting of long period and then carries out down
One depth acquisition needs observation beside moment someone, and is easy to appear biggish error manually in depth setting, in order to
Reducing error makes the accurately setting of depth slow, leads to claim for eot, on the other hand, finds when in use, often occurs
The soil sample of different depth has the phenomenon that mixing, applicant the analysis found that be due to soil sample residual cause, for this purpose, applicant into
Further improvement is gone, concrete scheme is as follows: 9 side of first motor being provided with fixed plate 25, leans in the fixed plate 25
The edge of the nearly screw rod 7 is provided with sliding rail, and fixed automatically controlled telescopic rod 21 is provided at sliding rail edge, is set on the sliding rail
It is equipped with sliding block 22, the second motor 23 is provided on the sliding block 22, the output shaft of second motor 23 is fixedly connected with screw thread
First 24, the position below the support plate 12 close to the acquisition bucket 13 is fixedly installed third motor 27, in the third
Second gear 28 is provided on the output shaft of motor 27, the position that the second gear 28 is corresponded on the acquisition bucket 13 is fixed
It is provided with first gear 26, drainage conduit 29 is provided on the acquisition bucket 13 below the first gear 26, in the drainage conduit
29 are internally provided with flowmeter, and control panel 30 is provided with above the rack 1, and the control panel 30 is built-in with control
Device, the controller and the first motor 9, the second motor 23,21 electricity of third motor 27, flowmeter and automatically controlled telescopic rod
Property connection, there is in the control panel 30 automatic control mode key and manual mode key.To pass through above-mentioned apparatus,
Manually when sampling, the setting of depth can be realized by the second turntable 8, after the sampling of each depth setting is completed,
Second gear 28 is driven to rotate by third motor 27, second gear 28 drives first gear 26 to rotate, and first gear 26 drives
Sampling tank 13 is rotated, and the amplitude of rotation makes the discharge port on just sampling tank 13 correspond to next sampling box 18, as
Sampling box 18 has equally distributed multiple, can according to need the reasonable quantity of selection, thus by the collecting cassette of fair amount
Regulation is on the second thread bush 17, and the amplitude that sampling tank 13 rotates every time need to correspond to the distance between neighbouring sample box 18, make
Just to next sampling box after must rotating, and corresponding different depth can be numbered in the sampling box of different location, sampling
After the completion, either automatic or manual, it requires to open drainage conduit 29 and first motor 9 is made to continue band dynamic spiral propeller 19
It works on the predetermined time, so that remaining soil sample all passes through the flowmeter that drainage conduit 29 is discharged, and is arranged in drainage conduit 29
Soil sample flow can be measured, when flow is zero, illustrates that remaining soil sample has been removed, so as to carry out the soil sample of next depth
Acquisition drives thread head 24 that screw rod 7 is advanced particular by the second motor, and stopping when reaching the second depth repeats at this time
Collection process identical to the first depth.Certainly sampling depth can be multiple, specifically can according to need in control panel
Setting realizes more depth acquisitions to repeat multiple above-mentioned collection process, and specific acquisition method can be such that in control plane
Manual mode and automatic mode are selected in plate 30；When manual mode, is rotated by the second turntable 8 and screw rod 7 is driven to enter first deeply
Then degree is opened the rotation of first motor 9 in control panel 30 and is sampled, after sampling, controller, which automatically controls, to be opened
The drainage conduit 29 closes the drainage conduit 29 and the first motor 9 when flowmeter detects that soil sample flow is zero with complete
It is acquired at the first depth soil sample；Then rotating again by the second turntable 8 drives screw rod 7 to enter the second depth, repeats above-mentioned the
The soil sample collection process of one depth；When automatic mode, automatic mode is selected by control panel 30, and be arranged in control panel
First depth, the second depth are provided with rear controller and are controlled automatically, and controller controls the automatically controlled telescopic rod 21 first
Elongation controls the second motor 23 and rotates so that drill bit 16 enters to the first depth so that the thread head abuts the screw rod 7,
Then controller controls the rotation of first motor 9 and carries out soil sample acquisition, after the first depth soil sample acquires, controller control
The drainage conduit 29 is opened, and the flowmeter that the first motor 9 is worked on into the drainage conduit 29 detects soil
Sample flow is zero, and then controller controls the drainage conduit 29 and closes and stop the first motor 9, and then controller controls institute
Stating the rotation of the second motor 23 drives drill bit 16 to enter to the second depth, while controlling the rotation of third motor 27 so that described adopt
Sample bucket 13 rotates so that discharge port is directed at next sampling box 18, and then controller controls the rotation of first motor 9 and carries out soil
Sample acquisition, after the second depth soil sample acquires, controller controls the drainage conduit 29 and opens, and makes the first motor 9
The flowmeter to work on into the drainage conduit 29 detects that soil sample flow is zero, and then controller controls the drainage conduit 29
It closes and stops the first motor 9.In conclusion manually and automatically both of which can be realized by control panel, and
In manually and automatically mode, acquisition bucket rotation can be automatically controlled by controller, so that discharge port alignment is next
A collecting cassette passes through controller, third motor, flowmeter, discharge so as to carry out more depth acquisitions, and after acquisition
Pipe is equipped with, and can empty the remaining soil sample in each depth, to will not generate to the soil sample of next depth dirty
Dye, and can according to need the multiple depth automatic collections of setting, this is another important inventive point of the invention.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of soil sample acquisition device used for geological prospecting, including rack (1), it is characterised in that: the rack (1) sets in convex
It sets, is threaded with the adjustable column (3) being vertically arranged, the top of the rack (1) at left and right sides of the bottom of the rack (1)
It is bolted with screw rod (7), the bottom of the screw rod (7) is fixed with first motor (9), and the inner cavity left and right sides of the rack (1) opens up
Have sliding slot (10), it is sliding in the sliding slot (10) to have sliding block (11), support plate is connected between two sliding blocks (11)
(12), the bottom of the first motor (9) is connected to the top of support plate (12), the output end connection of the first motor (9)
Have shaft (14), the bottom of the support plate (12) is connected with sampling tank (13), and the base circle of the shaft (14) is equipped with
Broken blade (15), the bottom end of the shaft (14) are also connected with drill bit (16), are connected with spiral on the shaft (14)
The upper half left and right sides of propeller (19), the sampling tank (13) is equipped with the second screw shell (17), second screw thread
The other side of sleeve (17) is bolted with sampling box (18)；Fixed plate (25) are provided with above the first motor (9), described
Fixed plate (25) is provided with sliding rail close to the edge of the screw rod (7), fixed automatically controlled telescopic rod is provided at sliding rail edge
(21), it is provided with sliding block (22), is provided with the second motor (23) on the sliding block (22), second motor on the sliding rail
(23) output shaft is fixedly connected with thread head (24), close to the position of acquisition bucket (13) below the support plate (12)
Third motor (27) are fixedly installed, second gear (28) are provided on the output shaft of the third motor (27), described
The position that the second gear (28) is corresponded in acquisition bucket (13) is fixedly installed first gear (26), in the first gear
(26) drainage conduit (29) are provided on the acquisition bucket (13) below, flowmeter are internally provided in the drainage conduit (29), in institute
It states and is provided with control panel (30) above rack (1), the control panel (30) is built-in with controller.
2. a kind of soil sample acquisition device used for geological prospecting according to claim 1, it is characterised in that: the controller and institute
It states first motor (9), the second motor (23), third motor (27), flowmeter and automatically controlled telescopic rod (21) to be electrically connected, institute
Stating has automatic control mode key and manual mode key in control panel (30).
3. a kind of soil sample acquisition device used for geological prospecting according to claim 1, it is characterised in that: the adjustable column (3)
Upper to be uniformly equipped with external screw thread, the lower section that the adjustable column (3) is located at pedestal (1) is bolted with the first screw shell (4), described
The top of adjustable column (3) is fixedly connected with the first turntable (6), and the bottom of first screw shell (4) is connected with circular support
Seat (5), the tapered setting in bottom of the adjustable column (3).
4. a kind of soil sample acquisition device used for geological prospecting according to claim 1, it is characterised in that: the rack (1)
The inboard that bottom is located at adjustable column (3) is equipped with universal wheel (2), is equipped with the second turntable (8) at the top of the screw rod (7).
5. a kind of soil sample acquisition device used for geological prospecting according to claim 1, it is characterised in that: the shaft (14) is worn
Sampling tank (13) are stretched out in the bottom for crossing support plate (12) and the shaft (14).
6. a kind of soil sample acquisition device used for geological prospecting according to claim 1, it is characterised in that: the rack (1)
Side front end face is equipped with graduation mark (20).
7. a kind of soil sample acquisition device used for geological prospecting according to claim 1, it is characterised in that: the sampling tank (13)
The left and right sides be provided with the consistent through-hole of screw shell (17) diameter, two sampling boxes (18) are obliquely installed.
8. a kind of a kind of soil sample acquisition side of soil sample acquisition device used for geological prospecting according to claim 1 to 6
Method, specifically includes the following steps:
Selection manual mode and automatic mode in control panel (30)；
When manual mode, is rotated by the second turntable (8) and screw rod (7) is driven to enter the first depth, then in control panel (30)
Middle unlatching first motor (9) rotation is sampled, and after sampling, controller, which automatically controls, opens the drainage conduit (29), when
When flowmeter detects that soil sample flow is zero, the drainage conduit (29) and the first motor (9) are closed to complete the first depth
Soil sample acquisition；Then rotating again by the second turntable (8) drives screw rod (7) to enter the second depth, repeats above-mentioned first depth
Soil sample collection process；
When automatic mode, automatic mode is selected by control panel (30), and the first depth, second are set deeply in control panel
Degree, is provided with rear controller and is controlled automatically, and controller control automatically controlled telescopic rod (21) elongation first is so that described
Thread head abuts the screw rod (7), and controls the second motor (23) and rotate so that drill bit (16) enters to the first depth, then controls
Device processed controls first motor (9) rotation and carries out soil sample acquisition, after the first depth soil sample acquires, described in controller control
Drainage conduit (29) is opened, and the flowmeter that the first motor (9) is worked on into the drainage conduit (29) detects
Soil sample flow is zero, and then controller controls the drainage conduit (29) and closes and stop the first motor (9), then controller
Controlling the second motor (23) rotation drives drill bit (16) to enter to the second depth, while controlling third motor (27) rotation
Turn so that the sampling tank (13) rotates so that the next sampling box (18) of discharge port alignment, then controller control described first
Motor (9) rotation carries out soil sample acquisition, and after the second depth soil sample acquires, controller controls the drainage conduit (29) and opens,
And the flowmeter that the first motor (9) is worked on into the drainage conduit (29) detects that soil sample flow is zero, so
Controller controls the drainage conduit (29) and closes and stop the first motor (9) afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372874.4A CN109187081A (en) | 2018-11-19 | 2018-11-19 | A kind of soil sample acquisition device used for geological prospecting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372874.4A CN109187081A (en) | 2018-11-19 | 2018-11-19 | A kind of soil sample acquisition device used for geological prospecting |
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| CN109187081A true CN109187081A (en) | 2019-01-11 |
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| CN201811372874.4A Pending CN109187081A (en) | 2018-11-19 | 2018-11-19 | A kind of soil sample acquisition device used for geological prospecting |
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