CN101793635B - Shallow water low-disturbed sediment sampler - Google Patents
Shallow water low-disturbed sediment sampler Download PDFInfo
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- CN101793635B CN101793635B CN2009101557986A CN200910155798A CN101793635B CN 101793635 B CN101793635 B CN 101793635B CN 2009101557986 A CN2009101557986 A CN 2009101557986A CN 200910155798 A CN200910155798 A CN 200910155798A CN 101793635 B CN101793635 B CN 101793635B
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- undersetting
- sampling container
- piston
- sampler barrel
- annular seal
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Abstract
The invention relates to a shallow area low-disturbed sediment sampler. The existing device can not obtain an undisturbed sample. A hoisting mechanism in the sampler is movably arranged on the top of a sampling container, and the bottom of the sampling container is provided with a sealing mechanism. The top of the a sampling tube in the sampling container is provided with an upper end cap, and an upper brace and a lower support both have cylindrical structure of which two ends are opened; the upper brace is sheathed on the upper part of the sampling tube, and the lower support is arranged on the lower part of the sampling tube; a piston is arranged in the sampling tube; the top of a piston on one end of a piston draw bar is fixedly arranged, and the other end of the piston draw bar passes through the upper end cap to be movably arranged. A cutting tool bit in the sealing mechanism is coaxially arranged with the lower support, a seal cavity is arranged between the cutting tool bit and the lower support, the inner wall of the seal cavity is provided with an air guiding groove, the outer wall of the seal cavity is provided with an air guiding hole which is connected with one end of an air guide pipe, and the other end is connected with an inflator pump. The invention has small volume, light weight and simple operation and can keep the low disturbance of a sampled sample.
Description
Technical field
The invention belongs to shallow water area deposition thing sampling technique field, be specifically related to a kind of low disturbance sampler that in the shallow water territory, obtains benthal deposit and overlying water.
Background technology
The natural environment and climate problem is subjected to people and more and more payes attention to, and preserving our planet and improving environment for human survival is the necessary condition that realizes human social.The information of zone and even global environmental change has also been put down in writing in the variation that shallow water area deposition things such as coastal waters, lake, reservoir have write down environment, is the important object of Environmental Studies.In today of people's pay attention to day by day environmental change, shallow water area deposition thing has caused the person's of countries in the world Research of Environmental Sciences extensive concern already, China also begins to strengthen the research work of this respect, but study not deep enoughly, main difficulty just is to be difficult to obtain the sediment sample in shallow water territories such as lake, reservoir, coastal waters.This is because these sediments generally are the muddy water admixture, does not also have compacting, and relying on routine to core sampling method can not the non-turbulent original state sample of acquisition.In addition, shallow water area deposition thing original state sampling also is widely used in oceanic sediment investigation, seabed, coastal waters engineering investigation, ocean mineral investigation, GEOCHEMICAL SURVEY, physical prospecting substrate checking investigation, shore bank engineering, geologic mapping, dam alluvial investigation and area researches such as soil and water geology on the way.
Therefore, the research and development sampler that can obtain the shallow water low-disturbed sediment original state sample for accurate analysis environments change, environmental pollution mechanism and seek effective environmental safeguard measure etc. and have very important significance.
Summary of the invention
The sampler that the purpose of this invention is to provide a kind of shallow water low-disturbed sediment original state sample can be carried out the low disturbance sampling of shallow water area deposition thing on land by manual operations on the ship.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of shallow water low-disturbed sediment sampler comprises sampling container, hangs mechanism and sealing mechanism.
Hang mechanism and be movably arranged on the top of sampling container, the bottom of sampling container is provided with sealing mechanism.Described sampling container, hang mechanism and the coaxial setting of sealing mechanism.
The described mechanism that hangs comprises hand-held push rod and Duo Gen extension rod, and many extension rods connect from beginning to end by screw thread, and the extension rod top at top and hand-held push rod vertical fixing are provided with, and the terminal upper end cover with sampling container of the extension rod of bottom fixedly installs.
Described sampling container comprises sampler barrel, pitch brace, piston, support bar, upper end cover, upper support and undersetting.The top of sampler barrel is set with upper end cover, and upper support and undersetting are the columnar structured of both ends open, and upper support is nested with the top at sampler barrel, and undersetting is nested with the bottom at sampler barrel, and upper support is fixedlyed connected by support bar with undersetting.Described sampler barrel is the transparent tube of the both ends open of hollow, is provided with piston in the sampler barrel, and the top of an end piston of pitch brace fixedly installs, and the other end of pitch brace runs through the movable setting of upper end cover.The coaxial setting of described sampler barrel, piston, upper end cover, upper support and undersetting.
Described sealing mechanism comprises cutter head, annular seal space, airtight leather bag, wireway, inflator pump and valve.Cutter head is the frustum of a cone of inner hollow, cutter head and the coaxial setting of undersetting, the annular seal space of tubular construction is between cutter head and undersetting, cutter head is fixedlyed connected by the sealing pull bar that is arranged on the annular seal space outside with undersetting, the sealing pull bar clamps simultaneously and is close to the airtight leather bag that the annular seal space inwall is provided with, have the air guide groove on the annular seal space inwall, have gas port on the outer wall of annular seal space, one end of wireway is connected with gas port, the other end of wireway is connected with inflator pump, and wireway is provided with valve.
The present invention has the following advantages with respect to prior art: adopt gases at high pressure to make airtight leather bag distortion as seal member, and compact conformation, transferring, take a sample and reclaiming of sampler only needs a hand-held air pump just can realize; This device can be got samples such as sediment and overlying water in the shallow water territory, keeps original hierarchical structure of sample and state.This device volume is little, in light weight, simple to operate, and the sample that can keep taking a sample hangs down disturbance, is one to be enclosed within the shallow water territory and hang down the device that the disturbance sediment is taken a sample by water conservancy project operation.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is sampling container and the side structure sectional view of sealing mechanism before sampling;
Fig. 3 is sampling container and the Facad structure sectional view of sealing mechanism after sampling.
Among the figure: 1, hand-held push rod, 2, extension rod, 3, upper end cover, 4, upper support, 5, support bar, 6, sampler barrel, 7, undersetting, 8, annular seal space, 9, cutter head, 10, sealing pull bar, 11, wireway, 12, valve, 13, inflator pump, 14, pitch brace, 15, piston, 16, airtight leather bag.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and example.
As shown in Figure 1, a kind of shallow water low-disturbed sediment sampler comprises sampling container, hangs mechanism and three parts of sealing mechanism, hangs the coaxial top that is arranged on sampling container of mechanism, the coaxial bottom that is arranged on sampling container of sealing mechanism.
1) sampling container: comprise upper end cover 3, upper support 4, support bar 5, sampler barrel 6, undersetting 7, pitch brace 14.Sampler barrel 6 is the acrylic material transparent tube of the both ends open of hollow, is used to hold the sampling target.The top of sampler barrel 6 is set with upper end cover 3, upper support 4 and undersetting 7 are the columnar structured of both ends open, upper support 4 is nested with on the top of sampler barrel 6, and undersetting 7 is nested with in the bottom of sampler barrel 6, and upper support 4 is fixedlyed connected by support bar 5 with undersetting 7.Be provided with piston 15 in the sampler barrel 6, an end of pitch brace 14 and the top of piston fixedly install, and the other end of pitch brace 14 runs through movable the setting and connecting rope in hole on the upper end cover 3.Pulling piston 15 moves in sampler barrel 6 sediment is entered in the sampler barrel 6.
2) hang mechanism: comprise hand-held push rod 1, two extension rods 2 and strike hammer, hand-held push rod and two extension rods are rod shape structure, two extension rods connect from beginning to end by screw thread, extension rod 2 tops on top and the 1 vertical fixing setting of hand-held push rod, the extension rod 2 terminal upper end covers 3 with sampling container of bottom fixedly install.Transfer process, transfer sampling container by hand-held push rod 1 and extension rod 2 and arrive water-bed sample position, higher as benthal deposit viscosity, can use and strike the hammering hired roughneck and hold push rod 1, make the cutter head 9 of sealing mechanism go deep into sediment, sampling container arrives the sample position.
3) sealing mechanism: comprise annular seal space 8, cutter head 9, sealing pull bar 10, wireway 11, valve 12, inflator pump 13, airtight leather bag 16.Cutter head 9 is the frustum of a cone of inner hollow, the undersetting 7 coaxial settings of cutter head 9 and sampling container, the annular seal space 8 of tubular construction is between cutter head 9 and undersetting 7, cutter head 9 is fixedlyed connected by the sealing pull bar 10 that is arranged on annular seal space 8 outsides with undersetting 7, sealing pull bar 10 is close to the airtight leather bag 16 that annular seal space 8 inwalls are provided with simultaneously, have the air guide groove on annular seal space 8 inwalls, have gas port on the outer wall of annular seal space 8, one end of wireway 11 is connected with gas port, the other end of wireway 11 is connected with inflator pump 13, and wireway is provided with valve 12.Cutter head 9 one ends have the edge of a knife, are convenient to insert in the benthal deposit.After sampling container arrives the sample position, by pitch brace 14 pulling pistons 15 sediment is entered in the sampler barrel, open inflator pump 13 and valve 12, gases at high pressure enter annular seal space 8 through wireway 11, under the high-pressure gas pressure effect, the airtight leather bag 16 that is rolled on the annular seal space 8 produces distortion, and the inlet of sampling container is shut.Valve-off 12 makes gas be in packing state, and the sediment that enters sampler barrel can not revealed.
The sampler barrel of this sampler adopts external diameter Φ 70mm, and the acrylic material transparent tube of wall thickness 5mm is used for gathering and preserving sediment and overlying water sample, also can observe the hierarchical structure of low disturbed sample, and efficient sampling length is 1500mm.
The course of work of the present invention is as follows: before transferring, connect each parts of sampler, and the test sealing mechanism, and make piston be positioned at the bottom of sampler.By hand-held push rod 1 and extension rod 2, sampler is vertically inserted in the benthal deposit.Transfer in the process, the rope that connects pitch brace is transferred simultaneously, and it is constant to guarantee that piston is positioned at the sampler bottom position.As shown in Figure 2, after sampling container arrives the sample position, sediment is entered in the sampler barrel by pitch brace pulling piston.Higher as benthal deposit viscosity, can use and strike the hammering hired roughneck and hold push rod 1, make cutter head 9 go deep into sediment, sediment enters in the sampler barrel.As shown in Figure 3, when piston arrives sampler barrel top, be full of the sampling thing in the sampler barrel, open inflator pump 12 and valve 11, gases at high pressure enter annular seal space 8 through wireway 10, under the gaseous tension effect, the airtight leather bag 16 that is rolled on the annular seal space 8 produces distortion, and the inlet of sampling container is shut.Valve-off makes gas be in packing state in annular seal space, and the sediment that enters sampler barrel can not revealed.Lift hand-held push rod 1, sampling container and sampling thing are vertically risen simultaneously leave the water surface, finish sampling.
Claims (1)
1. a shallow water low-disturbed sediment sampler comprises sampling container, hangs mechanism and sealing mechanism, it is characterized in that: hang the top that mechanism is movably arranged on sampling container, the bottom of sampling container is provided with sealing mechanism; Described sampling container, hang mechanism and the coaxial setting of sealing mechanism;
The described mechanism that hangs comprises hand-held push rod and Duo Gen extension rod, and many extension rods connect from beginning to end by screw thread, and the extension rod top at top and hand-held push rod vertical fixing are provided with, and the terminal upper end cover with sampling container of the extension rod of bottom fixedly installs;
Described sampling container comprises sampler barrel, pitch brace, piston, support bar, upper end cover, upper support and undersetting; The top of sampler barrel is set with upper end cover, and upper support and undersetting are the columnar structured of both ends open, and upper support is nested with the top at sampler barrel, and undersetting is nested with the bottom at sampler barrel, and upper support is fixedlyed connected by support bar with undersetting; Described sampler barrel is the transparent tube of the both ends open of hollow, is provided with piston in the sampler barrel, and an end of pitch brace and the top of piston fixedly install, and the other end of pitch brace runs through the movable setting of upper end cover; The coaxial setting of described sampler barrel, piston, upper end cover, upper support and undersetting;
Described sealing mechanism comprises cutter head, annular seal space, airtight leather bag, wireway, inflator pump and valve; Cutter head is the frustum of a cone of inner hollow, cutter head and the coaxial setting of undersetting, the annular seal space of tubular construction is between cutter head and undersetting, cutter head is fixedlyed connected by the sealing pull bar that is arranged on the annular seal space outside with undersetting, the sealing pull bar clamps simultaneously and is close to the airtight leather bag that the annular seal space inwall is provided with, have the air guide groove on the annular seal space inwall, have gas port on the outer wall of annular seal space, one end of wireway is connected with gas port, the other end of wireway is connected with inflator pump, and wireway is provided with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101557986A CN101793635B (en) | 2009-12-18 | 2009-12-18 | Shallow water low-disturbed sediment sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101557986A CN101793635B (en) | 2009-12-18 | 2009-12-18 | Shallow water low-disturbed sediment sampler |
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| Publication Number | Publication Date |
|---|---|
| CN101793635A CN101793635A (en) | 2010-08-04 |
| CN101793635B true CN101793635B (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101557986A Expired - Fee Related CN101793635B (en) | 2009-12-18 | 2009-12-18 | Shallow water low-disturbed sediment sampler |
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| CN102589927B (en) * | 2012-03-26 | 2017-04-05 | 北京师范大学 | Portable fidelity cylindrical bottom mud sampler |
| CN103323285A (en) * | 2013-05-14 | 2013-09-25 | 北京建工环境修复有限责任公司 | Freezing sampler for sediments in different depth of rivers or lakes |
| CN103323290A (en) * | 2013-05-14 | 2013-09-25 | 北京建工环境修复有限责任公司 | Sampler for sediment pore water sampling in rivers or lakes |
| CN104502149B (en) * | 2014-12-09 | 2017-02-22 | 浙江省海洋水产研究所 | Closed type seawater sampling system |
| CN104596803B (en) * | 2015-02-16 | 2017-08-29 | 中交一航局第二工程有限公司 | A kind of deep-water sludge sampler |
| CN105239947A (en) * | 2015-10-30 | 2016-01-13 | 湖南科技大学 | Seafloor sediment coring device applicable to seafloor drilling machine |
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| CN107817124A (en) * | 2017-10-23 | 2018-03-20 | 苏州水环岩土科技有限公司 | A kind of device and its acquisition method for gathering Sediments undisturbed |
| CN107621386A (en) * | 2017-11-10 | 2018-01-23 | 广东恒畅环保节能检测科技有限公司 | A kind of sludge sampler |
| CN108535056A (en) * | 2018-04-27 | 2018-09-14 | 亿利首建生态科技有限公司 | A kind of mud columnar sampler |
| CN108760382B (en) * | 2018-06-07 | 2023-05-26 | 湖南科技大学 | Seabed surface sediment low-disturbance sampler and application method thereof |
| CN111207947A (en) * | 2020-03-16 | 2020-05-29 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队 | Hydrogeology surveys sampling device |
| CN111855307B (en) * | 2020-07-14 | 2023-11-07 | 上海交通大学 | Traction sampling type active pressure-maintaining in-situ seawater sampler and sampling method thereof |
| CN112985914B (en) * | 2021-03-05 | 2022-04-08 | 浙江大学 | Contain overlay water deposit fidelity sampler based on moving platform under water |
| CN114441222B (en) * | 2022-02-15 | 2023-07-25 | 昆明学院 | Deep sampling device of wetland sediment |
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|---|---|---|---|---|
| US3975957A (en) * | 1975-09-19 | 1976-08-24 | The United States Of America As Represented By The Secretary Of The Navy | Sediment sampling system |
| DE4211633A1 (en) * | 1992-03-30 | 1993-10-07 | Andreas Dipl Ing Kaiser | Liquid sampling system esp. for dirty water - consists of swivelable closing plate rotated by spring-loaded rod at lower end face of tube which contains piston. |
| CN201083634Y (en) * | 2007-09-23 | 2008-07-09 | 中国海洋大学 | Disturbance-free shallow water bottom mud sampling and nutritive salt flux measuring equipment |
| CN201662488U (en) * | 2009-12-18 | 2010-12-01 | 杭州电子科技大学 | Shallow-water mild-disturbance sediment sampler |
-
2009
- 2009-12-18 CN CN2009101557986A patent/CN101793635B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3975957A (en) * | 1975-09-19 | 1976-08-24 | The United States Of America As Represented By The Secretary Of The Navy | Sediment sampling system |
| DE4211633A1 (en) * | 1992-03-30 | 1993-10-07 | Andreas Dipl Ing Kaiser | Liquid sampling system esp. for dirty water - consists of swivelable closing plate rotated by spring-loaded rod at lower end face of tube which contains piston. |
| CN201083634Y (en) * | 2007-09-23 | 2008-07-09 | 中国海洋大学 | Disturbance-free shallow water bottom mud sampling and nutritive salt flux measuring equipment |
| CN201662488U (en) * | 2009-12-18 | 2010-12-01 | 杭州电子科技大学 | Shallow-water mild-disturbance sediment sampler |
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| CN101793635A (en) | 2010-08-04 |
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Granted publication date: 20110907 Termination date: 20131218 |