CN107179211B - Hydraulic undisturbed soil sampling drill - Google Patents
Hydraulic undisturbed soil sampling drill Download PDFInfo
- Publication number
- CN107179211B CN107179211B CN201710473659.2A CN201710473659A CN107179211B CN 107179211 B CN107179211 B CN 107179211B CN 201710473659 A CN201710473659 A CN 201710473659A CN 107179211 B CN107179211 B CN 107179211B
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- oil cylinder
- pipe
- valve
- delivery pipe
- hydraulic pump
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- 238000005527 soil sampling Methods 0.000 title claims abstract description 13
- 239000002689 soil Substances 0.000 claims abstract description 27
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 42
- 238000000034 method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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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 hydraulic undisturbed soil sampling drill, which comprises a hydraulic pump, a bidirectional oil cylinder, a soil sampler and an oil cylinder; the periphery of the bidirectional oil cylinder is circumferentially provided with a bracket, and a bracket gasket is arranged at the contact position of the bracket and the ground; the top of the bidirectional oil cylinder is communicated with the bottom of the hydraulic pump through a first oil delivery pipe and a first one-way valve, and is communicated with the oil cylinder through a second oil delivery pipe; the bottom of the bidirectional oil cylinder is communicated with the oil cylinder through a third oil delivery pipe, and is communicated with the bottom of the hydraulic pump through a fourth oil delivery pipe and a first one-way valve; the bottom of the hydraulic pump is communicated with the oil cylinder through a second one-way valve; the four oil delivery pipes are respectively provided with a first valve, a second valve, a third valve and a fourth valve; the piston of the hydraulic pump is connected with the pedal plate through a driving rod; the soil sampler comprises a pipe shoe and a liner pipe, and the bottom of the liner pipe is connected with a drill bit; the top of the pipe boot is connected with the piston in the bidirectional oil cylinder through a connecting rod. The invention can reduce the disturbance to the soil to the maximum extent and maintain the soil characteristics.
Description
Technical Field
The invention relates to a soil sampling device in soil physicochemical property analysis, in particular to a hydraulic undisturbed soil sampling drill.
Background
The collection of soil samples is an important link of the physical and chemical property analysis of the soil, and the quality of the sampling directly influences the analysis result. Most of the existing earth drills are made of metal materials such as stainless steel, the earth drills with thin pipe walls are easy to break in the use process, and the earth drills with thick pipe walls are heavy and are not easy to insert into soil. The stainless steel contains various heavy metals and other metal elements, has hardness lower than that of sand stone in soil, is easy to scratch and enter a sample in the soil sampling process, and has serious influence on the physicochemical property analysis of the sample. Traditional bore cylinder earth boring machine gathers the soil that humidity is big, and when extracting earth boring machine, the sample is easy to drop, can't take out completely, and when bulldozing rod formula earth boring machine gathers the great soil of viscidity, is difficult for ejecting, has influenced sample collection efficiency.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a hydraulic undisturbed soil sampling drill which can reduce the disturbance to the soil to the maximum extent and maintain the soil characteristics. 0004. In order to achieve the above purpose, the present invention adopts the following technical scheme:
the hydraulic undisturbed soil sampling drill comprises a hydraulic pump, a bidirectional oil cylinder, a soil sampler and oil
A cylinder; the periphery of the bidirectional oil cylinder is circumferentially provided with a bracket, and a bracket gasket is arranged at the contact position of the bracket and the ground; the top of the bidirectional oil cylinder is communicated with the bottom of the hydraulic pump through a first oil delivery pipe and a first one-way valve, and is communicated with the oil cylinder through a second oil delivery pipe; the bottom of the bidirectional oil cylinder is communicated with the oil cylinder through a third oil delivery pipe, and is communicated with the bottom of the hydraulic pump through a fourth oil delivery pipe and the first one-way valve; the bottom of the hydraulic pump is communicated with the oil cylinder through a second one-way valve; the first oil delivery pipe, the second oil delivery pipe, the third oil delivery pipe and the fourth oil delivery pipe are respectively provided with a first valve, a second valve, a third valve and a fourth valve;
the piston of the hydraulic pump is connected with the pedal plate through a driving rod;
the soil sampler comprises a pipe shoe and a liner pipe, the liner pipe is sleeved in the pipe shoe, and the bottom of the liner pipe is connected with a drill bit; the top of the pipe boot is connected with the piston in the bidirectional oil cylinder through a connecting rod.
Further, a plurality of blades which gradually extend outwards from bottom to bottom are arranged around the drill bit; the included angle between the blade and the vertical direction is smaller than 10 degrees; the maximum outer diameter of the blade is larger than the outer diameter of the pipe shoe.
Further, a return spring is arranged between the bottom of the pedal and the support gasket; the return spring is in a natural extension state.
Further, the connecting rod is made of No. 45 steel; the bracket is made of 304 steel; the pipe shoe is made of aluminum alloy; the drill bit is made of No. 45 steel; the liner is made of PVC and has a thickness of 7.7mm.
The invention has the following beneficial technical effects: the invention utilizes bidirectional hydraulic power to directly push the undisturbed soil drill by static pressure, and can take undisturbed soil body by small pedal force; because the hydraulic direct-pushing earth auger is adopted, the disturbance to the soil can be reduced to the greatest extent, the soil characteristics are maintained, and the analysis of the physical and chemical properties of the soil is more in line with the field practice.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which the invention is shown
Novel exemplary embodiments. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art
As shown in fig. 1, the present invention provides a hydraulic undisturbed soil sampling drill, which comprises a hydraulic pump 1, a bidirectional oil cylinder 2, a soil sampler and an oil cylinder 3; wherein, the periphery of the bidirectional oil cylinder 2 is circumferentially provided with a bracket 4, and the contact position of the bracket 4 and the ground is provided with a bracket gasket 5; the top of the bidirectional oil cylinder 2 is communicated with the bottom of the hydraulic pump 1 through a first oil delivery pipe 6 and a first one-way valve 10, and is communicated with the oil cylinder 3 through a second oil delivery pipe 7; the bottom of the bidirectional oil cylinder 2 is communicated with the oil cylinder 3 through a third oil delivery pipe 8 and is communicated with the bottom of the hydraulic pump 1 through a fourth oil delivery pipe 9 and a first one-way valve 10; the bottom of the hydraulic pump 1 is communicated with the oil cylinder 3 through a second one-way valve 11; the first oil delivery pipe 6, the second oil delivery pipe 7, the third oil delivery pipe 8 and the fourth oil delivery pipe 9 are respectively provided with a first valve 12, a second valve 13, a third valve 14 and a fourth valve 15; the piston of the hydraulic pump 1 is connected with a pedal 17 through a driving rod 16; the soil sampler comprises a pipe shoe 18 and a liner tube 19, the liner tube 19 is sleeved in the pipe shoe 18, and the bottom of the liner tube 19 is connected with a drill bit 20; the top of the pipe shoe 18 is connected with a bidirectional cylinder inner piston 22 through a connecting rod 21. A plurality of blades 23 which gradually extend outwards from top to bottom are arranged around the drill bit 20; the angle between the blades 23 and the vertical direction is less than 10 degrees; the maximum outer diameter of the blades 23 is greater than the outer diameter of the shoe 18; the drill bit can be smoothly pulled out from the drill hole by the arrangement. A return spring 24 is arranged between the bottom of the pedal 17 and the bracket gasket 5; the return spring 24 is naturally stretched in a natural state, and the return spring 24 is used for returning the pedal 17.
The connecting rod 21 is made of steel 45; the bracket 4 is made of 304 steel; the shoe 18 is made of an aluminum alloy; drill bit 20 is made of steel number 45; the liner 19 is made of PVC and has a thickness of 7.7mm.
The working process of the invention is as follows:
when taking soil, the foot pedal 16 is stepped on by foot, the first valve 12 and the third valve 14 are simultaneously opened, and the second valve 13 and the fourth valve 15 are closed; under the action of the trampling force, the piston of the hydraulic pump 1 moves downwards, liquid at the lower part of the piston in the hydraulic pump 1 enters the upper part of the piston 22 of the bidirectional oil cylinder 2 through the first oil delivery pipe 6, so that the piston 22 is driven to move downwards, the soil sampler is driven to finish the soil sampling process, if the soil sampling depth of one trampling is insufficient, the pedal 16 can be repeatedly trampled, and the hydraulic pump 1 sucks hydraulic oil from the oil cylinder 3 through the second one-way valve 11; after soil taking is completed, the second valve 13 and the fourth valve 15 are opened, the first valve 12 and the third valve 14 are closed, the pedal 16 is stepped on by foot, the piston of the hydraulic pump 1 moves downwards under the action of the stepping force, liquid at the lower part of the piston in the hydraulic pump 1 enters the lower part of the piston 22 of the bidirectional oil cylinder 2 through the fourth oil delivery pipe 9, the piston 22 is further driven to move upwards, and hydraulic oil above the piston 22 of the bidirectional oil cylinder 2 flows back to the oil cylinder 3 through the second oil delivery pipe 7; in the whole process, the liquid in the hydraulic pump 1 and the bidirectional oil cylinder 2 is always in a cyclic utilization state.
The foregoing is illustrative of the present invention and is not to be construed as limiting thereof
The above embodiments are all possible variations consistent with the idea of the present invention.
Claims (2)
1. The hydraulic undisturbed soil sampling drill is characterized by comprising a hydraulic pump, a bidirectional oil cylinder, a soil sampler and an oil cylinder; wherein,,
the periphery of the bidirectional oil cylinder is circumferentially provided with a bracket, and a bracket gasket is arranged at the contact position of the bracket and the ground; the top of the bidirectional oil cylinder is communicated with the bottom of the hydraulic pump through a first oil delivery pipe and a first one-way valve, and is communicated with the oil cylinder through a second oil delivery pipe; the bottom of the bidirectional oil cylinder is communicated with the oil cylinder through a third oil delivery pipe, and is communicated with the bottom of the hydraulic pump through a fourth oil delivery pipe and the first one-way valve; the bottom of the hydraulic pump is communicated with the oil cylinder through a second one-way valve; the first oil delivery pipe, the second oil delivery pipe, the third oil delivery pipe and the fourth oil delivery pipe are respectively provided with a first valve, a second valve, a third valve and a fourth valve;
the piston of the hydraulic pump is connected with the pedal plate through a driving rod;
the soil sampler comprises a pipe shoe and a liner pipe, the liner pipe is sleeved in the pipe shoe, and the bottom of the liner pipe is connected with a drill bit; the top of the pipe boot is connected with the piston in the bidirectional oil cylinder through a connecting rod;
a plurality of blades which gradually extend outwards from top to bottom are arranged around the drill bit; the included angle between the blade and the vertical direction is smaller than 10 degrees; the maximum outer diameter of the blade is larger than the outer diameter of the pipe shoe;
a reset spring is arranged between the bottom of the pedal and the support gasket; the return spring is in a natural extension state.
2. The hydraulic undisturbed soil sampling drill of claim 1, wherein said connecting rod is made of steel No. 45; the bracket is made of 304 steel; the pipe shoe is made of aluminum alloy; the drill bit is made of No. 45 steel; the liner is made of PVC and has a thickness of 7.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710473659.2A CN107179211B (en) | 2017-06-21 | 2017-06-21 | Hydraulic undisturbed soil sampling drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710473659.2A CN107179211B (en) | 2017-06-21 | 2017-06-21 | Hydraulic undisturbed soil sampling drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107179211A CN107179211A (en) | 2017-09-19 |
| CN107179211B true CN107179211B (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710473659.2A Active CN107179211B (en) | 2017-06-21 | 2017-06-21 | Hydraulic undisturbed soil sampling drill |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287085A (en) * | 2018-03-27 | 2018-07-17 | 昆明理工大学 | A kind of undisturbed soil drawing out soil equipment of hydraulic control |
Citations (14)
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|---|---|---|---|---|
| GB1444014A (en) * | 1973-05-23 | 1976-07-28 | Trentham Ltd G Percy | Soil sampling method and apparatus |
| JPH0742490A (en) * | 1993-07-29 | 1995-02-10 | Hitachi Constr Mach Co Ltd | Sand pumping device for small diameter pipe thrusting machine |
| CN2193887Y (en) * | 1993-07-03 | 1995-04-05 | 中国兵器工业北方勘测研究院 | Rotary soil sampler |
| CN201522396U (en) * | 2009-05-19 | 2010-07-07 | 中交三航院勘察工程有限公司 | Vertical electric hydraulic earth pusher |
| CN102692336A (en) * | 2012-05-29 | 2012-09-26 | 南昌大学 | Undisturbed soil sampler |
| CN102768130A (en) * | 2012-08-03 | 2012-11-07 | 中国科学院遗传与发育生物学研究所农业资源研究中心 | Device and method for collecting undisturbed soil sample |
| CN203344922U (en) * | 2013-06-25 | 2013-12-18 | 颜瑾 | Hydraulic movable wheel for two-wheel vehicle |
| CN103883245A (en) * | 2014-03-24 | 2014-06-25 | 三峡大学 | Hydraulic manual drill |
| CN203688265U (en) * | 2014-01-17 | 2014-07-02 | 长安大学 | Static pressure soil sampling equipment for detecting dry density through on-spot sampling |
| CN203929435U (en) * | 2014-04-28 | 2014-11-05 | 中国农业科学院烟草研究所 | A kind of foot-operated compressed soil-sampling tool |
| CN204758324U (en) * | 2015-06-02 | 2015-11-11 | 中国矿业大学 | Helping hand formula wetland soil sampling ware |
| CN205879573U (en) * | 2016-07-27 | 2017-01-11 | 浙江水利水电学院 | Prevent damaged geotome of bushing pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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2017
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| JPH0742490A (en) * | 1993-07-29 | 1995-02-10 | Hitachi Constr Mach Co Ltd | Sand pumping device for small diameter pipe thrusting machine |
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| CN102692336A (en) * | 2012-05-29 | 2012-09-26 | 南昌大学 | Undisturbed soil sampler |
| CN102768130A (en) * | 2012-08-03 | 2012-11-07 | 中国科学院遗传与发育生物学研究所农业资源研究中心 | Device and method for collecting undisturbed soil sample |
| CN203344922U (en) * | 2013-06-25 | 2013-12-18 | 颜瑾 | Hydraulic movable wheel for two-wheel vehicle |
| CN203688265U (en) * | 2014-01-17 | 2014-07-02 | 长安大学 | Static pressure soil sampling equipment for detecting dry density through on-spot sampling |
| CN103883245A (en) * | 2014-03-24 | 2014-06-25 | 三峡大学 | Hydraulic manual drill |
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| CN204758324U (en) * | 2015-06-02 | 2015-11-11 | 中国矿业大学 | Helping hand formula wetland soil sampling ware |
| CN205879573U (en) * | 2016-07-27 | 2017-01-11 | 浙江水利水电学院 | Prevent damaged geotome of bushing pipe |
| CN106802249A (en) * | 2017-03-16 | 2017-06-06 | 合肥学院 | Manual hydraulic type earth work cutting ring soil sampler |
| CN206990248U (en) * | 2017-06-21 | 2018-02-09 | 北京农学院 | A kind of hydraulic pressure compressed soil-sampling tool |
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| Publication number | Publication date |
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| CN107179211A (en) | 2017-09-19 |
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