CN103900851B - Bottom mud in lake sampling thief - Google Patents
Bottom mud in lake sampling thief Download PDFInfo
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- CN103900851B CN103900851B CN201410135886.0A CN201410135886A CN103900851B CN 103900851 B CN103900851 B CN 103900851B CN 201410135886 A CN201410135886 A CN 201410135886A CN 103900851 B CN103900851 B CN 103900851B
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- sampling
- lake
- bottom mud
- semicircular ring
- arm
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Abstract
Bottom mud in lake sampling thief, the invention belongs to Research of Environmental Sciences field, is specifically related to a kind of sampling tool for bottom mud in lake, and it will solve the problem that existing bottom mud in lake sampling apparatus is complicated and sampling precision is low.This bottom mud in lake sampling thief comprises sampling cylinder, connecting link, drag spring, linking arm, closing cap, draft arm and stay cord, wherein linking arm is made up of 2 straight-arms and semicircular ring, the two ends of semicircular ring are hinged on hinged-support, straight-arm is fixedly connected with at the two ends of semicircular ring, between straight-arm, connecting sealed lid, is connected drag spring between closing cap with spring base, and one end and the semicircular ring of draft arm are hinged, the other end connects stay cord, and the top cover of sampling cylinder has multiple osculum.This sampler structure is simple, and lake water is discharged by osculum, and avoid lake water impact, in the process promoting sampling thief, bottom mud in lake is in an enclosure space, ensure that the sequence of sampling horizon, improves the precision of sampling.
Description
Technical field
The invention belongs to Research of Environmental Sciences field, be specifically related to a kind of sampling tool for bottom mud in lake.
Background technology
Bottom mud in lake sediment is the good information carrier of record natural environment and climate change, China's paleoclimate scholar utilizes lake sediment to rebuild paleoenvironment change information since nearly ten thousand years well in recent years, for the rule of climate change, the evolution direction of driving mechanism and Future Climate provides valuable geologic information.But the application of many paleoclimate substituted index be unable to do without the understanding to these indexs and Relationship To Environmental Factors in current bottom mud in lake, making to utilize the sampling means of science to gather bottom mud in lake becomes this type of key studied.
At present, the method gathering bottom mud in lake mainly contains two kinds: boring sampling and grab sampler sampling.The ice face work in the winter time of boring sampling general large type drill, sampling work burdensome task amount is large, work under bad environment.Although grab sampler can utilize spitkit to sample in summer, but the defect of this method of sampling is, grab sampler is at crawl bottom mud in lake and be subject to lake water impact when upwards being promoted by lakebed unavoidably, the sequence of disturbance sampling horizon and then the precision of impact sampling.
Summary of the invention
The present invention seeks to solve the problem that existing bottom mud in lake sampling apparatus is complicated and sampling precision is low, and bottom mud in lake sampling thief is provided.
Bottom mud in lake sampling thief of the present invention comprises sampling cylinder, connecting link, drag spring, linking arm, closing cap, draft arm and stay cord, wherein linking arm is made up of 2 straight-arms and semicircular ring, semicircular ring is arranged on the right side of sampling cylinder, the two ends of semicircular ring be hinged to be positioned at sampling cylinder external wall of upper portion hinged-support on, straight-arm is fixedly connected with respectively at the two ends of semicircular ring, connecting sealed lid between 2 straight-arms under being tilted to, spring base is arranged on the left side of sampling cylinder, drag spring is connected between closing cap with spring base, one end and the semicircular ring of draft arm are hinged, the other end of draft arm is connected with stay cord, the top cover of sampling cylinder has multiple osculum, connecting link is connected with at the middle part of top cover.
Bottom mud in lake sampling thief of the present invention simple and reasonable, each assembling parts is convenient, is convenient to outdoor operations, when using it to carry out bottom mud in lake sampling, by pulling stay cord, closing cap can be made to close the thief hatch of sampling cylinder lower end, and lake water is then discharged by the osculum on sampling cylinder top cover, avoids lake water impact, in the process promoting sampling thief, the bottom mud in lake gathered is in an enclosure space, ensure that the sequence of sampling horizon, improves the precision of sampling.
Accompanying drawing explanation
Fig. 1 is the structural representation of bottom mud in lake sampling thief of the present invention.
Embodiment
Embodiment one: present embodiment bottom mud in lake sampling thief comprises sampling cylinder 1, connecting link 2, drag spring 6, linking arm, closing cap 5, draft arm 7 and stay cord 8, wherein linking arm is made up of 2 straight-arms 4 and semicircular ring 3, semicircular ring 3 is arranged on the right side of sampling cylinder 1, the two ends of semicircular ring 3 be hinged to be positioned at sampling cylinder 1 external wall of upper portion hinged-support 9 on, straight-arm 4 is fixedly connected with respectively at the two ends of semicircular ring 3, connecting sealed lid 5 between 2 straight-arms 4 under being tilted to, spring base 10 is arranged on the left side of sampling cylinder 1, drag spring 6 is connected between closing cap 5 with spring base 10, one end and the semicircular ring 3 of draft arm 7 are hinged, the other end of draft arm 7 is connected with stay cord 8, the top cover of sampling cylinder 1 has multiple osculum 11, connecting link 2 is connected with at the middle part of top cover.
The radius of the semicircular ring described in present embodiment is greater than the distance of hinged-support to top cover, moves to above top cover around hinged-support to enable semicircular ring.Spring base described in present embodiment is outstanding outside cylinder in the radial direction of sampling cylinder.Wherein drag spring is keeping closing cap to be in opening by lake surface for sampling thief in lakebed sinking watching.
Embodiment two: present embodiment and embodiment one select internal diameter to be that the stainless-steel tube of 100mm thickness 2mm is made unlike sampling cylinder 1.
The sharp sampling cylinder that is beneficial to of openend polishing of present embodiment sampling cylinder inserts silt from the bottom of lake.
Embodiment three: present embodiment and embodiment one or two have been threaded connection connecting link 2 unlike the middle part at top cover.
Embodiment four: one of present embodiment and embodiment one to three are the corrosion resistant plate that 2mm is thick unlike draft arm 7.
Embodiment five: one of present embodiment and embodiment one to four select nylon rope unlike stay cord 8.
Embodiment six: one of present embodiment and embodiment one to five are also connected with extension rod unlike the upper end at connecting link 2.
Present embodiment extension rod is mainly used in the length changing connecting link under different water depth condition.
Embodiment seven: one of present embodiment and embodiment one to six are 5mm unlike the diameter of osculum 11.
The osculum of present embodiment leaks for cylinder inner storing water during sampling cylinder insertion mud.
Embodiment one: the present embodiment bottom mud in lake sampling thief comprises sampling cylinder 1, connecting link 2, drag spring 6, linking arm, closing cap 5, draft arm 7 and stay cord 8, wherein linking arm is made up of 2 straight-arms 4 and semicircular ring 3, semicircular ring 3 is arranged on the right side of sampling cylinder 1, the two ends of semicircular ring 3 be hinged to be positioned at sampling cylinder 1 external wall of upper portion hinged-support 9 on, straight-arm 4 is fixedly connected with respectively at the two ends of semicircular ring 3, connecting sealed lid 5 between 2 straight-arms 4 under being tilted to, spring base 10 is arranged on the left side of sampling cylinder 1, drag spring 6 is connected between closing cap 5 with spring base 10, one end and the semicircular ring 3 of draft arm 7 are hinged, the other end of draft arm 7 is connected with stay cord 8, the top cover of sampling cylinder 1 has multiple osculum 11, connecting link 2 is connected with at the middle part of top cover.
The sampling cylinder of the present embodiment is by thickness 2mm, and the stainless-steel tube of internal diameter 100mm is made, and the height of sampling cylinder is 500mm.Connecting link is the tube and pipe of aluminium alloy of diameter 30mm, and closing cap is the stainless sheet steel of diameter 110mm, thickness 1mm.The length of straight-arm is 400mm, and the length of draft arm is 300mm.
The course of work of the present embodiment bottom mud in lake sampling thief first sampling thief and connecting link is threaded connection, open closing cap, then sampling thief is kept vertically putting into lake water, stay cord is slowly put into lake water with sampling thief, along with the dive of sampling thief suitably can increase extension rod under the tension-free condition of maintenance simultaneously.After bottom mud in lake sampling thief touches lakebed, make sampling cylinder insert silt from the bottom of lake firmly vertically pressing down extension rod, this process can according to the size of the number adjustment downforce of sampling quantity as far as possible.Subsequently, to hold with a firm grip extension rod under the condition keeping vertical downforce to make sampling cylinder as you were as far as possible in maintenance, pull stay cord straight up until sensation resistance increases suddenly, now illustrate that closing cap closes.Finally, upwards pull extension rod and stay cord, sampling thief is proposed lake surface, and the closing cap opening sampling cylinder can gather bed mud sample simultaneously.
This bottom mud in lake sampling thief in sampling process by pulling stay cord, closing cap is made to close the thief hatch of sampling cylinder lower end, lake water is then discharged by the osculum on sampling cylinder top cover, avoid the impact of lake water on bed mud, in the process promoting sampling thief, the bottom mud in lake gathered is in the enclosure space surrounded by sampling cylinder and closing cap, ensure that the sequence of sampling horizon, improves the precision of sampling.
Claims (7)
1. bottom mud in lake sampling thief, it is characterized in that this bottom mud in lake sampling thief comprises sampling cylinder (1), connecting link (2), drag spring (6), linking arm, closing cap (5), draft arm (7) and stay cord (8), wherein linking arm is made up of 2 straight-arms (4) and semicircular ring (3), semicircular ring (3) is arranged on the right side of sampling cylinder (1), the two ends of semicircular ring (3) are hinged to and are positioned on the hinged-support (9) of sampling cylinder (1) external wall of upper portion, straight-arm (4) is fixedly connected with respectively at the two ends of semicircular ring (3), connecting sealed lid (5) between 2 straight-arms (4) under being tilted to, spring base (10) is arranged on the left side of sampling cylinder (1), drag spring (6) is connected between closing cap (5) with spring base (10), one end and the semicircular ring (3) of draft arm (7) are hinged, the other end of draft arm (7) is connected with stay cord (8), the top cover of sampling cylinder (1) has multiple osculum (11), the radius of semicircular ring (3) is greater than the distance of hinged-support (9) to top cover, can move to above top cover around hinged-support (9) to make semicircular ring (3), connecting link (2) is connected with at the middle part of top cover.
2. bottom mud in lake sampling thief according to claim 1, is characterized in that sampling cylinder (1) selects internal diameter to be that the stainless-steel tube of 100mm thickness 2mm is made.
3. bottom mud in lake sampling thief according to claim 1, is characterized in that being threaded connection connecting link (2) at the middle part of top cover.
4. bottom mud in lake sampling thief according to claim 1, is characterized in that draft arm (7) is for the thick corrosion resistant plate of 2mm.
5. bottom mud in lake sampling thief according to claim 1, is characterized in that nylon rope selected by stay cord (8).
6. bottom mud in lake sampling thief according to claim 1, is characterized in that also being connected with extension rod in the upper end of connecting link (2).
7. bottom mud in lake sampling thief according to claim 1, is characterized in that the diameter of osculum (11) is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135886.0A CN103900851B (en) | 2014-04-04 | 2014-04-04 | Bottom mud in lake sampling thief |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135886.0A CN103900851B (en) | 2014-04-04 | 2014-04-04 | Bottom mud in lake sampling thief |
Publications (2)
| Publication Number | Publication Date |
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| CN103900851A CN103900851A (en) | 2014-07-02 |
| CN103900851B true CN103900851B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410135886.0A Expired - Fee Related CN103900851B (en) | 2014-04-04 | 2014-04-04 | Bottom mud in lake sampling thief |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280269B (en) * | 2014-10-10 | 2017-06-13 | 李云峰 | A kind of table shallow-layer sludge sampler |
| CN105067379B (en) * | 2015-08-14 | 2017-11-10 | 福建师范大学 | A kind of portable tidal flat paludal sediment sampler and its method for sampling |
| CN105258973B (en) * | 2015-10-23 | 2018-01-02 | 哈尔滨师范大学 | Lake dredge tool automatic telescopic link |
| CN106644571B (en) * | 2017-01-23 | 2023-05-23 | 浙江省水利水电勘测设计院有限责任公司 | Double-tube bottom mud sampler |
| CN109490015A (en) * | 2018-11-02 | 2019-03-19 | 河海大学 | It is a kind of for preventing the bed-sit sampler of turbulent water in high-velocity flow environment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201352187Y (en) * | 2008-11-17 | 2009-11-25 | 山东省淡水水产研究所 | Box type bottom sediment sampler |
| CN102706697A (en) * | 2011-03-28 | 2012-10-03 | 杜梦 | An angle-adjustable multi-function sampling shovel |
| CN203422242U (en) * | 2013-08-16 | 2014-02-05 | 淮南矿业(集团)有限责任公司 | Bottom mud collecting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101464228B (en) * | 2008-12-29 | 2011-04-27 | 中国科学院测量与地球物理研究所 | Bottom mud column-shaped sampling apparatus |
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2014
- 2014-04-04 CN CN201410135886.0A patent/CN103900851B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201352187Y (en) * | 2008-11-17 | 2009-11-25 | 山东省淡水水产研究所 | Box type bottom sediment sampler |
| CN102706697A (en) * | 2011-03-28 | 2012-10-03 | 杜梦 | An angle-adjustable multi-function sampling shovel |
| CN203422242U (en) * | 2013-08-16 | 2014-02-05 | 淮南矿业(集团)有限责任公司 | Bottom mud collecting device |
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| CN103900851A (en) | 2014-07-02 |
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Granted publication date: 20151230 Termination date: 20210404 |