CN103900851A - Lake sediment sampler - Google Patents
Lake sediment sampler Download PDFInfo
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- CN103900851A CN103900851A CN201410135886.0A CN201410135886A CN103900851A CN 103900851 A CN103900851 A CN 103900851A CN 201410135886 A CN201410135886 A CN 201410135886A CN 103900851 A CN103900851 A CN 103900851A
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- sampling
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- semicircular ring
- bottom mud
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Abstract
The invention relates to a lake sediment sampler which belongs to the field of environmental science research, and in particular relates to a lake sediment sampling tool which aims at solving the problems that the existing lake sediment sampling device is complicated and low in sampling accuracy. The lake sediment sampler comprises a sampling barrel, a connecting rod, a traction spring, a connecting arm, a closing cover, a traction arm and a pull rope, wherein the connecting arm consists of two straight arms and a semicircular ring; the two ends of the semicircular ring are articulated on a hinged support seat; the two ends of the semicircular ring are respectively and fixedly connected with the straight arms; the closing cover is connected between the two straight arms; the traction spring is connected between the closing cover and a spring seat; one end of the traction arm is articulated with the semicircular ring, and the other end of the traction arm is connected with the pull rope; a plurality of drainage holes are formed in a top cover of the sampling barrel. The lake sediment sampler is simple in structure; lake water can be discharged outside through the drainage holes, so that the influence on the lake water can be avoided; when the sampler is lifted, the lake sediment is in a closed space, so that the sequence of a sampling horizon can be guaranteed, and the sampling accuracy is improved.
Description
Technical field
The invention belongs to Research of Environmental Sciences field, be specifically related to a kind of sampling instrument for bottom mud in lake.
Background technology
Bottom mud in lake sediment is to record the good information carrier that natural environment and climate changes, China's paleoclimate scholar utilizes lake sediment to rebuild well the paleoenvironment change information since nearly ten thousand years 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, make to utilize the sampling means collection bottom mud in lake of science to become the key of this type of research.
At present, the method for collection 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 using 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 subject to unavoidably lake water impact in capturing bottom mud in lake and upwards being promoted by lakebed, the sequence of disturbance sampling horizon and then the precision of impact sampling.
Summary of the invention
The present invention seeks in order to solve existing bottom mud in lake sampling apparatus complexity and the low problem of sampling precision, 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 are hinged on the hinged-support that is positioned at sampling cylinder external wall of upper portion, two ends in semicircular ring are fixedly connected with respectively straight-arm, connecting sealed lid between 2 straight-arms under being tilted to, spring base is arranged on the left side of sampling cylinder, between closing cap and spring base, be connected drag spring, one end and the semicircular ring of draft arm are hinged, the other end of draft arm is connected with stay cord, on the top cover of sampling cylinder, have multiple osculums, middle part at top cover is connected with connecting link.
Bottom mud in lake sampling thief of the present invention simple and reasonable, each assembling parts is convenient, is convenient to outdoor operation, while using it to carry out bottom mud in lake sampling, by pulling stay cord, can make closing cap close the thief hatch of sampling cylinder lower end, lake water is discharged by the osculum on sampling cylinder top cover, has avoided lake water impact, in the process of lifting sampling thief, the bottom mud in lake gathering is in an enclosure space, has ensured the sequence of sampling horizon, has improved the precision of sampling.
Brief description of the drawings
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 are hinged on the hinged-support 9 that is positioned at sampling cylinder 1 external wall of upper portion, two ends in semicircular ring 3 are fixedly connected with respectively straight-arm 4, 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, between closing cap 5 and spring base 10, be connected drag spring 6, one end of draft arm 7 and semicircular ring 3 are hinged, the other end of draft arm 7 is connected with stay cord 8, on the top cover of sampling cylinder 1, have multiple osculums 11, be connected with connecting link 2 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, so that semicircular ring can move to top cover top around hinged-support.Spring base described in present embodiment is outstanding outside cylinder in the radial direction of sampling cylinder.Wherein drag spring is keeping closing cap in opening by lake surface to lakebed sinking process for sampling thief.
Embodiment two: the stainless-steel tube of what present embodiment was different from embodiment one is sampling cylinder 1 selects internal diameter is 100mm thickness 2mm is made.
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: what present embodiment was different from embodiment one or two is to be threaded connection connecting link 2 at the middle part of top cover.
Embodiment four: what present embodiment was different from one of embodiment one to three is that draft arm 7 is the thick corrosion resistant plate of 2mm.
Embodiment five: what present embodiment was different from one of embodiment one to four is that stay cord 8 is selected nylon rope.
Embodiment six: what present embodiment was different from one of embodiment one to five is to be also connected with extension rod in the upper end of connecting link 2.
Present embodiment extension rod is mainly used in changing the length of connecting link under different water depth condition.
Embodiment seven: the diameter of what present embodiment was different from one of embodiment one to six is osculum 11 is 5mm.
When the osculum of present embodiment inserts mud for sampling cylinder, cylinder inner storing water leaks.
Embodiment mono-: 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 are hinged on the hinged-support 9 that is positioned at sampling cylinder 1 external wall of upper portion, two ends in semicircular ring 3 are fixedly connected with respectively straight-arm 4, 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, between closing cap 5 and spring base 10, be connected drag spring 6, one end of draft arm 7 and semicircular ring 3 are hinged, the other end of draft arm 7 is connected with stay cord 8, on the top cover of sampling cylinder 1, have multiple osculums 11, be connected with connecting link 2 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 diameter 110mm, the stainless sheet steel of 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 is first sampling thief and connecting link to be 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 under the tension-free condition of maintenance, along with the dive of sampling thief can suitably increase extension rod simultaneously.Touch after lakebed at bottom mud in lake sampling thief, make sampling cylinder insert silt from the bottom of lake firmly vertically pressing down extension rod as far as possible, this process can be according to the size of the number adjustment downforce of sampling quantity.Subsequently, keeping holding with a firm grip extension rod keep vertical downforce to make under sampling cylinder condition as you were as far as possible, pulling stay cord straight up until sensation resistance increases suddenly, now illustrating that closing cap is closed.Finally, upwards pull extension rod and stay cord, sampling thief is proposed to lake surface, the closing cap of opening sampling cylinder can gather bed mud sample simultaneously.
This bottom mud in lake sampling thief in sampling process by pulling stay cord, make closing cap close the thief hatch of sampling cylinder lower end, lake water is discharged by the osculum on sampling cylinder top cover, avoid the impact of lake water on bed mud, in the process of lifting sampling thief, the bottom mud in lake gathering is in the enclosure space being surrounded by sampling cylinder and closing cap, has ensured the sequence of sampling horizon, has improved 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 on the hinged-support (9) that is positioned at sampling cylinder (1) external wall of upper portion, be fixedly connected with respectively straight-arm (4) 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), between closing cap (5) and spring base (10), be connected drag spring (6), one end of draft arm (7) and semicircular ring (3) are hinged, the other end of draft arm (7) is connected with stay cord (8), on the top cover of sampling cylinder (1), have multiple osculums (11), be connected with connecting link (2) at the middle part of top cover.
2. bottom mud in lake sampling thief according to claim 1, is characterized in that it is that the stainless-steel tube of 100mm thickness 2mm is made that sampling cylinder (1) is selected internal diameter.
3. bottom mud in lake sampling thief according to claim 1, is characterized in that being threaded connection at the middle part of top cover connecting link (2).
4. bottom mud in lake sampling thief according to claim 1, is characterized in that draft arm (7) is the thick corrosion resistant plate of 2mm.
5. bottom mud in lake sampling thief according to claim 1, is characterized in that stay cord (8) selects nylon rope.
6. bottom mud in lake sampling thief according to claim 1, is characterized in that being also connected with extension rod in the upper end of connecting link (2).
7. bottom mud in lake sampling thief according to claim 1, the diameter that it is characterized in that 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 |
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| Publication Number | Publication Date |
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| CN103900851A true CN103900851A (en) | 2014-07-02 |
| CN103900851B 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280269A (en) * | 2014-10-10 | 2015-01-14 | 李云峰 | Shallow superficial layer sludge sampler |
| CN105067379A (en) * | 2015-08-14 | 2015-11-18 | 福建师范大学 | Portable tidal beach swamp sediment sampler and sampling method thereof |
| CN105258973A (en) * | 2015-10-23 | 2016-01-20 | 哈尔滨师范大学 | Automatic retractable rod for lake underwater sampling tool |
| CN106644571A (en) * | 2017-01-23 | 2017-05-10 | 浙江省水利水电勘测设计院 | Double-pipe 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 |
| CN110849666A (en) * | 2019-12-18 | 2020-02-28 | 中国海洋大学 | A sea grass collection system for shallow water region of nearshore |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101464228A (en) * | 2008-12-29 | 2009-06-24 | 中国科学院测量与地球物理研究所 | Bottom mud column-shaped sampling apparatus |
| 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 |
-
2014
- 2014-04-04 CN CN201410135886.0A patent/CN103900851B/en not_active Expired - Fee Related
Patent Citations (4)
| 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 |
| CN101464228A (en) * | 2008-12-29 | 2009-06-24 | 中国科学院测量与地球物理研究所 | Bottom mud column-shaped sampling apparatus |
| 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 |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280269A (en) * | 2014-10-10 | 2015-01-14 | 李云峰 | Shallow superficial layer sludge sampler |
| CN104280269B (en) * | 2014-10-10 | 2017-06-13 | 李云峰 | A kind of table shallow-layer sludge sampler |
| CN105067379A (en) * | 2015-08-14 | 2015-11-18 | 福建师范大学 | Portable tidal beach swamp sediment sampler and sampling method thereof |
| 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 |
| CN105258973A (en) * | 2015-10-23 | 2016-01-20 | 哈尔滨师范大学 | Automatic retractable rod for lake underwater sampling tool |
| CN105258973B (en) * | 2015-10-23 | 2018-01-02 | 哈尔滨师范大学 | Lake dredge tool automatic telescopic link |
| CN106644571A (en) * | 2017-01-23 | 2017-05-10 | 浙江省水利水电勘测设计院 | Double-pipe 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 |
| CN110849666A (en) * | 2019-12-18 | 2020-02-28 | 中国海洋大学 | A sea grass collection system for shallow water region of nearshore |
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| Publication number | Publication date |
|---|---|
| CN103900851B (en) | 2015-12-30 |
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Granted publication date: 20151230 Termination date: 20210404 |
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