CN105675342B - The two-way drawing out soil equipment of packaged type - Google Patents
The two-way drawing out soil equipment of packaged type Download PDFInfo
- Publication number
- CN105675342B CN105675342B CN201610036697.7A CN201610036697A CN105675342B CN 105675342 B CN105675342 B CN 105675342B CN 201610036697 A CN201610036697 A CN 201610036697A CN 105675342 B CN105675342 B CN 105675342B
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- China
- Prior art keywords
- mounting base
- soil
- seat
- drawing out
- longitudinal extension
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Classifications
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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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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of two-way drawing out soil equipment of packaged type, including support, mounting base and guiding driving mechanism and Qu Tu mechanism, the support is removably mounted to the both ends of the mounting base, the Qu Tu mechanism is slidably mounted on the guiding driving mechanism, the guiding driving mechanism is installed in the mounting base, and driving Qu Tu mechanism is slided in mounting base.The present invention takes native mechanism slips that can carry out soil sampling to vicinal different location by guiding driving mechanism driving, and drawing out soil equipment can be made longitudinally to take soil or transversely borrowing earth by removably replacing different supports, realize the two-way function of taking soil, greatly improve the service performance and convenience of soil sampler, solving existing drawing out soil equipment can only take soil to realize that longitudinal direction takes soil along the depth direction of soil, it cannot carry out taking the problem of soil is to realize transversely borrowing earth along the width direction of soil, there is versatility height, the wide and convenient beneficial effect of use scope.
Description
Technical field
The invention belongs to geological exploration field equipment, refer in particular to a kind of two-way drawing out soil equipment of packaged type.
Background technique
In geological prospecting work, it is often necessary to research is sampled to the soil structure of different regions or areal,
Therefore, by needing to complete soil sampling work by drawing out soil equipment.Existing drawing out soil equipment includes pedestal, rotary sliding installation
In taking native bar on pedestal, and it is satisfied with the fetch earth set of screw lower end.But existing drawing out soil equipment can only be along the depth direction of soil
Soil is taken to realize that longitudinal direction takes soil, cannot carry out taking soil to realize transversely borrowing earth along the width direction of soil, be unable to complete the cross to soil
It is studied to property, to probe into soil in the property of same depth different location, causes poor universality, use scope small and not square
Just.
Summary of the invention
It is an object of the invention to solve existing drawing out soil equipment to exist and soil can only be taken to realize longitudinal direction along the depth direction of soil
Soil is taken, along the width direction of soil cannot take soil to cause poor universality, use scope small to realize transversely borrowing earth and not side
Just the problem of, provide that a kind of versatility is high, the wide and convenient two-way drawing out soil equipment of packaged type of use scope.
Following technical scheme can be used to reach in the purpose of the present invention:
A kind of two-way drawing out soil equipment of packaged type, including support, mounting base and guiding driving mechanism and Qu Tu mechanism, it is described
Support is removably mounted to the both ends of the mounting base, and the Qu Tu mechanism is slidably mounted on the guiding driving mechanism,
The guiding driving mechanism is installed in the mounting base, and driving Qu Tu mechanism is slided in mounting base.
As a preferred solution, the support includes the fixing seat for being removably mounted to the mounting base both ends respectively
With longitudinal extension seat, the fixing seat and longitudinal extension seat are followed closely equipped with foot, and the foot nail is set to the same side of the mounting base
In fixing seat and longitudinal extension seat on face, and the center line of the center line and the length direction of the mounting base of foot nail mutually hangs down
Directly.
As a preferred solution, the support includes two and is removably mounted to the vertical of the mounting base both ends respectively
To telescopic seat, the longitudinal extension seat is followed closely equipped with foot, and the longitudinal direction that the foot nail is set on the same side of the mounting base is stretched
On contracting seat, and the center line of the center line and the length direction of the mounting base of foot nail is perpendicular.
As a preferred solution, the support includes being removably mounted to the longitudinal direction at the mounting base both ends respectively to stretch
Contracting seat and transversal stretching seat, the longitudinal extension seat and transversal stretching seat are followed closely equipped with foot, the center line point of two foot nails
It is not perpendicular and parallel with the center line of the length direction of the mounting base.
As a preferred solution, slot, the peace are provided on the fixing seat, longitudinal extension seat and transversal stretching seat
The both ends of dress seat are inserted to be fixedly attached together into the slot and by connector.
Further, the longitudinal extension seat includes the first bottom plate, the first hydraulic cylinder being articulated on pedestal, with described the
The hinged first connecting rod elevating mechanism of the output shaft of one hydraulic cylinder, and the power output end with the first connecting rod elevating mechanism
The first connecting plate being hinged is provided with the slot on first connecting plate.
Further, the transversal stretching seat includes the second bottom plate, the second hydraulic cylinder being articulated in second base, with institute
The hinged second connecting rod elevating mechanism of the output shaft of second hydraulic cylinder is stated, and defeated with the power of the second connecting rod elevating mechanism
The second connecting plate that outlet is hinged is provided with the slot on second connecting plate.
Further, one end of the mounting base is equipped with accommodating cavity, and the accommodating cavity is equipped with lid；The guiding
Driving mechanism includes the swingle in mounting base, is parallel to each other with swingle and is fixedly installed in the fixation in mounting base
Bar, and set on the first gearbox and first motor accommodated in cavity；One end of the swingle and first speed change
The output end of case, which is fixedly connected, the other end is rotatable is sheathed in mounting base；The swingle is equipped with external screw thread, described to take soil
Threaded hole and through-hole are provided in mechanism, the Qu Tu mechanism is connected slidably by the screw-driven between threaded hole and external screw thread
It is sheathed on the swingle, the Qu Tu mechanism is slidably sheathed in the fixed link by through-hole；The first motor
Output shaft be fixedly connected with the input terminal of first gearbox.
Further, the Qu Tu mechanism includes the second gearbox for being provided with the threaded hole and through-hole, is fixedly installed in
On second gearbox and the second motor that its output shaft is fixedly connected with second transmission input, it is fixedly installed in described
The silk braid of the output end of second gearbox, the screw rod being connect with the silk braid screw-driven, and it is fixedly installed in the screw rod
The soil sample barrel of one end.
As a preferred solution, the mounting base is equipped with hand handle.
As a preferred solution, second gearbox is equipped with the protective case for coating screw rod.
The invention has the following beneficial effects:
1, the present invention takes native mechanism slips that can carry out to vicinal different location by guiding driving mechanism driving
Soil sampling, and drawing out soil equipment can be made longitudinally to take soil or transversely borrowing earth by removably replacing different supports, it realizes double
To the function of taking soil, the service performance and convenience of soil sampler are greatly improved, solving existing drawing out soil equipment can only be along soil
Depth direction takes soil to realize that longitudinal direction takes soil, cannot carry out taking the problem of soil is to realize transversely borrowing earth, tool along the width direction of soil
Have the characteristics that versatility is high, use scope is wide and convenient.
2, the present invention first will be in foot nail when taking soil by adjusting the height of longitudinal extension seat and transversal stretching seat
In the foot nail insertion soil layer of the perpendicular longitudinal extension seat of the center line of heart line and the length direction of mounting base, make soil sample barrel Cheng Heng
To sliding mode.Then transversal stretching seat is adjusted again, follows closely the foot of transversal stretching seat in laterally inserted soil layer, Ze Qutu mechanism pair
Energy soil layer carries out the operation of transversely borrowing earth sample, further improves versatility, more convenient to use.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the two-way drawing out soil equipment of packaged type of the present invention；
Fig. 2 is the structural schematic diagram of the longitudinal extension seat of the two-way drawing out soil equipment of packaged type of the present invention；
Fig. 3 is the structural schematic diagram of the guiding driving mechanism of the two-way drawing out soil equipment of packaged type of the present invention；
Fig. 4 is the structural schematic diagram of the Qu Tu mechanism of the two-way drawing out soil equipment of packaged type of the present invention；
Fig. 5 is the structural schematic diagram of the embodiment 3 of the two-way drawing out soil equipment of packaged type of the present invention；
Fig. 6 is the structural schematic diagram of the transversal stretching seat of the two-way drawing out soil equipment of packaged type of the present invention.
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.
Embodiment
Referring to Fig.1 and Fig. 5, the present embodiment are related to drawing out soil equipment, including 3 and of support 1, mounting base 2 and guiding driving mechanism
Qu Tu mechanism 4, the support 1 are removably mounted to the both ends of the mounting base 2, and the Qu Tu mechanism 4 is slidably mounted at institute
It states on guiding driving mechanism 3, the guiding driving mechanism 3 is installed in the mounting base 2, drives Qu Tu mechanism 4 in mounting base 2
Upper sliding.The present invention drives the sliding of Qu Tu mechanism 4 that can take to vicinal different location by guiding driving mechanism 3
Soil sample, and drawing out soil equipment can be made longitudinally to take soil or transversely borrowing earth by removably replacing different supports 1, it realizes two-way
The function of taking soil, greatly improves the service performance and convenience of soil sampler, and solving existing drawing out soil equipment can only be along the depth of soil
Degree direction takes soil to realize that longitudinal direction takes soil, cannot carry out taking the problem of soil is to realize transversely borrowing earth along the width direction of soil, have
The feature that versatility is high, use scope is wide and convenient.
As shown in Figure 1, the support 1 includes being removably mounted to the fixing seat 11 at 2 both ends of mounting base respectively and indulging
To telescopic seat 12, the fixing seat 11 and longitudinal extension seat 12 are equipped with foot nail 6, and the foot nail 6 is set to the same of the mounting base 2
In fixing seat 11 and longitudinal extension seat 12 on one side, and in the center line of foot nail 6 and the length direction of the mounting base 2
Heart line is perpendicular.The fixing seat 11 and longitudinal extension seat 12 of the structure play the role of supporting and fixing mounting base 2, wherein Gu
Reservation 11 has fixed height, and the height of longitudinal extension seat 12 can be adjusted.When taking soil, first by fixing seat 11
On foot nail 6 insertion soil layers in be fixed, then adjust the height of longitudinal extension seat 12 again, make mounting base 2 be in it is horizontal
State and keep Qu Tu mechanism 4 can pierce straight down soil layer carry out soil sampling, can be applicable in by the adjusting of longitudinal extension seat 12
In the ground with different concave-convex situations, versatility is high and easy to use.
Slot 13 is provided in the fixing seat 11 and longitudinal extension seat 12, the both ends of the mounting base 2 are inserted inserts into described
It is fixedly attached together in slot 13 and by connector.By using the connection structure of slot 13, fixing seat 11 and longitudinal extension
Seat 12 can rapidly carry out dismounting and change, and structure is simple, can greatly improve drawing out soil equipment and longitudinally take soil and transversely borrowing earth two
The conversion of a operating mode improves the efficiency and convenience of two-way operation.
As shown in Fig. 2, the longitudinal extension seat 12 includes the first bottom plate 121, the first hydraulic cylinder being articulated on pedestal
122, the hinged first connecting rod elevating mechanism 123 with the output shaft of the first hydraulic cylinder 122, and with the first connecting rod liter
The first connecting plate 124 that the power output end of descending mechanism 123 is hinged is provided with the slot on first connecting plate 124
13.Longitudinal extension seat 12 is installed on the both ends of mounting base 2 by slot 13, when the height for needing to be raised and lowered longitudinal extension seat 12
When spending the height and levelness to adjust mounting base 2, driving first hydraulic cylinder 122 works, and so that piston rod is stretched out or is returned, then may be used
First connecting rod elevating mechanism 123 is pushed to be moved upwardly or downwardly, to realize the purpose that height and levelness are adjusted.
One end of the mounting base 2 is equipped with accommodating cavity, and the accommodating cavity is equipped with lid 5；The guiding driving machine
Structure 3 includes the swingle 31 in mounting base 2, is parallel to each other with swingle 31 and is fixedly installed in the fixation in mounting base 2
Bar 32, and set on the first gearbox 33 and first motor 34 accommodated in cavity；One end of the swingle 31 with it is described
The output end of first gearbox 33, which is fixedly connected, the other end is rotatable is sheathed in mounting base 2；The swingle 31 is equipped with outer
Screw thread, threaded hole and through-hole are provided in the Qu Tu mechanism 4, and the Qu Tu mechanism 4 passes through the spiral shell between threaded hole and external screw thread
Line transmission connection is slidably sheathed on the swingle 31, and the Qu Tu mechanism 4 is slidably sheathed on described solid by through-hole
In fixed pole 32；The output shaft of the first motor 34 is fixedly connected with the input terminal of first gearbox 33.Such as Fig. 3 institute method,
When needing to drive the 4 carry out level sliding of Qu Tu mechanism, starting first motor 34 drives the rotation of the first gearbox 33, to drive rotation
Bull stick 31 is realized to make the Qu Tu mechanism 4 connecting with 31 screw-driven of swingle carry out rotational slide relative to swingle 31
To the function of carrying out soil sampling with vicinal different location.
As shown in figure 4, the Qu Tu mechanism 4 includes the second gearbox 41 for being provided with the threaded hole and through-hole, fixed peace
It is fixed loaded on the second gearbox 41 and the second motor 42 that its output shaft is fixedly connected with 41 input terminal of the second gearbox
It is installed on the silk braid 43 of the output end of second gearbox 41, the screw rod 44 being connect with 43 screw-driven of silk braid, and
It is fixedly installed in the soil sample barrel 45 of described 44 one end of screw rod.When needing to carry out soil sampling, the second motor 42 of starting driving second
Gearbox 41 rotate, while drive silk braid 43 rotate and make the screw rod 44 being connect with 43 screw-driven of silk braid relative to silk braid 43 into
Row rotational slide completes soil sampling so that soil sample barrel be enable to pierce or deviate from soil layer.
The mounting base 2 is equipped with hand handle 21.When 6 insertion soil layer of foot nail or Qu Tu mechanism 4 protrude into soil layer, mounting base
2 cause when will receive very big opposition foot nail 6 or Qu Tu mechanism 4 that can not normally be inserted into soil layer, need to hold hand handle
21 stablize mounting base 2, to guarantee that equipment can go on smoothly operation.
Second gearbox 41 is equipped with the protective case 46 for coating screw rod 44, to prevent screw rod 44 in rotational slide
During hurt operating personnel.
Embodiment 2
The present embodiment is that on the basis of embodiment 1, as the improvement to support 1, the support 1 includes two difference can
Disassembly is installed on the longitudinal extension seat 12 at 2 both ends of mounting base, and the longitudinal extension seat 12 is equipped with foot nail 6, the foot nail 6
On the longitudinal extension seat 12 on the same side of the mounting base 2, and the length of the center line of foot nail 6 and the mounting base 2
The center line for spending direction is perpendicular.The longitudinal extension seat 12 of the structure plays the role of supporting and fixing mounting base 2, longitudinal extension
The height of seat 12 can be adjusted.When taking soil, one of longitudinal extension seat 12 is adjusted arrive scheduled height first
And will be fixed in 6 insertion soil layer of the foot of the longitudinal extension seat 12 nail, the height of another longitudinal extension seat 12 is then adjusted again
Degree enables mounting base 2 to be in horizontality and keeps Qu Tu mechanism 4 to pierce soil layer straight down and carry out soil sampling, pass through longitudinal direction
The adjusting of telescopic seat 12 can be adapted for the ground with different concave-convex situations, and at any time can be vertical by adjusting two simultaneously
The height for adjusting mounting base 2 on the whole to the height of telescopic seat 12, further improves versatility, more convenient to use.
Embodiment 3
The present embodiment be on the basis of embodiment 1, as the improvement to support 1, as shown in Figure 5 and Figure 6, the support
1 includes the longitudinal extension seat 12 and transversal stretching seat 14 for being removably mounted to 2 both ends of mounting base respectively, the longitudinal extension
Seat 12 and transversal stretching seat 14 are equipped with foot nail 6, the center line of the two feet nails 6 length side with the mounting base 2 respectively
To center line it is perpendicular and parallel.The support 1 of the structure is adapted to progress transversely borrowing earth.When taking soil, foot is followed closely 6 first
Center line and mounting base 2 length direction the perpendicular longitudinal extension seat 12 of center line 6 insertion soil layers of foot nail in, make to take
Native cylinder is at sliding laterally state.Then transversal stretching seat 14 is adjusted again, and the foot of transversal stretching seat 14 is made to follow closely 6 laterally inserted soil layers
In, 4 pairs of Ze Qutu mechanism can soil layer progress transversely borrowing earth sample operation.
The transversal stretching seat 14 is including the second bottom plate 141, the second hydraulic cylinder 142 being articulated in second base 141, with
The hinged second connecting rod elevating mechanism 143 of the output shaft of the second hydraulic cylinder 142, and with the second connecting rod elevating mechanism
The second connecting plate 144 that 143 power output end is hinged is provided with the slot 13 on second connecting plate 144.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (11)
1. a kind of two-way drawing out soil equipment of packaged type, it is characterised in that: including support, mounting base and guiding driving mechanism and take soil
Mechanism, the support are removably mounted to the both ends of the mounting base, and the support removably replaces different supports, realize
Longitudinal direction takes soil or transversely borrowing earth；The Qu Tu mechanism is slidably mounted on the guiding driving mechanism, the guiding driving machine
Structure is installed in the mounting base, and driving Qu Tu mechanism is slided in mounting base.
2. the two-way drawing out soil equipment of packaged type according to claim 1, it is characterised in that: the support includes removable respectively
The fixing seat and longitudinal extension seat for being installed on the mounting base both ends, the fixing seat and longitudinal extension seat is unloaded to follow closely equipped with foot,
Foot nail is set in fixing seat and longitudinal extension seat on the same side of the mounting base, and the center line of foot nail with it is described
The center line of the length direction of mounting base is perpendicular.
3. the two-way drawing out soil equipment of packaged type according to claim 1, it is characterised in that: the support includes two difference
It is removably mounted to the longitudinal extension seat at the mounting base both ends, the longitudinal extension seat is followed closely equipped with foot, and the foot nail is set to
On longitudinal extension seat on the same side of the mounting base, and in the center line of foot nail and the length direction of the mounting base
Heart line is perpendicular.
4. the two-way drawing out soil equipment of packaged type according to claim 1, it is characterised in that: the support includes removable respectively
The longitudinal extension seat and transversal stretching seat for being installed on the mounting base both ends are unloaded, is set on the longitudinal extension seat and transversal stretching seat
There is foot nail, the center line of two foot nails is perpendicular and parallel with the center line of the length direction of the mounting base respectively.
5. the two-way drawing out soil equipment of packaged type according to claim 2, it is characterised in that: be provided in the fixing seat slotting
Slot, the both ends of the mounting base are inserted to be fixedly attached together into the slot and by connector.
6. the two-way drawing out soil equipment of packaged type according to claim 5, it is characterised in that: the longitudinal extension seat includes the
One bottom plate, the first hydraulic cylinder being articulated in first base, the first connecting rod liter hinged with the output shaft of the first hydraulic cylinder
Descending mechanism, and the first connecting plate being hinged with the power output end of the first connecting rod elevating mechanism, first connection
Slot is provided on plate.
7. the two-way drawing out soil equipment of packaged type according to claim 4, it is characterised in that: the transversal stretching seat includes the
Two bottom plates, the second hydraulic cylinder being articulated in second base, the second connecting rod liter hinged with the output shaft of the second hydraulic cylinder
Descending mechanism, and the second connecting plate being hinged with the power output end of the second connecting rod elevating mechanism, second connection
Slot is provided on plate.
8. the two-way drawing out soil equipment of packaged type according to claim 1, it is characterised in that: one end of the mounting base is equipped with
Accommodating cavity, the accommodating cavity are equipped with lid；The guiding driving mechanism includes the swingle in mounting base, with rotation
Bull stick is parallel to each other and is fixedly installed in the fixed link in mounting base, and set on the first gearbox accommodated in cavity and the
One motor；One end of the swingle is fixedly connected with the output end of first gearbox, the other end is rotatable is sheathed on peace
It fills on seat；The swingle is equipped with external screw thread, is provided with threaded hole and through-hole in the Qu Tu mechanism, the Qu Tu mechanism passes through
Screw-driven connection between threaded hole and external screw thread is slidably sheathed on the swingle, and the Qu Tu mechanism passes through through-hole
It is slidably sheathed in the fixed link；The input terminal of the output shaft of the first motor and first gearbox is fixed to be connected
It connects.
9. the two-way drawing out soil equipment of packaged type according to claim 8, it is characterised in that: the Qu Tu mechanism includes being provided with
Second gearbox of the threaded hole and through-hole, is fixedly installed on the second gearbox and its output shaft and second gearbox
The second motor that input terminal is fixedly connected is fixedly installed in the silk braid of the output end of second gearbox, with the silk braid spiral shell
The screw rod of line transmission connection, and it is fixedly installed in the soil sample barrel of described screw rod one end.
10. the two-way drawing out soil equipment of packaged type according to any one of claims 1 to 4, it is characterised in that: in the mounting base
Equipped with hand handle.
11. the two-way drawing out soil equipment of packaged type according to claim 4, it is characterised in that: the longitudinal extension seat and cross
Slot is provided on telescopic seat, the both ends of the mounting base, which are inserted, is fixedly attached to one into the slot and by connector
It rises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610036697.7A CN105675342B (en) | 2016-01-20 | 2016-01-20 | The two-way drawing out soil equipment of packaged type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610036697.7A CN105675342B (en) | 2016-01-20 | 2016-01-20 | The two-way drawing out soil equipment of packaged type |
Publications (2)
| Publication Number | Publication Date |
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| CN105675342A CN105675342A (en) | 2016-06-15 |
| CN105675342B true CN105675342B (en) | 2019-02-15 |
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| CN201610036697.7A Expired - Fee Related CN105675342B (en) | 2016-01-20 | 2016-01-20 | The two-way drawing out soil equipment of packaged type |
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| CN107144445B (en) * | 2017-04-21 | 2019-07-02 | 中国水利水电科学研究院 | A kind of water sample collection location device |
| CN107421772B (en) * | 2017-08-17 | 2020-03-31 | 江苏环保产业技术研究院股份公司 | Be applied to prosthetic automatic device of fetching earth of soil |
| CN107762420B (en) * | 2017-10-16 | 2019-04-23 | 北京沛泉科技有限公司 | A kind of shock-absorbing type portable sampling drill based on Internet of Things |
| CN111537260A (en) * | 2020-04-01 | 2020-08-14 | 安徽金联地矿科技有限公司 | Soil sampling device |
| CN112901081B (en) * | 2021-02-07 | 2024-03-22 | 中岩辉海有限公司 | Reaming device for geological exploration sampling |
| CN112985892B (en) * | 2021-04-26 | 2021-08-10 | 中国石油大学胜利学院 | Sampling device for geological structure investigation |
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| CN105675342A (en) | 2016-06-15 |
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