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Lake Sediment Sampler

A sampler and sediment technology, applied in the field of environmental science research, can solve the problems of complex devices and low sampling accuracy, and achieve the effects of improving accuracy, convenient assembly, and avoiding the impact of lake water

Inactive Publication Date: 2015-12-30
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a lake sediment sampler in order to solve the problems of complex and low sampling precision existing lake sediment sampling devices

Method used

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  • Lake Sediment Sampler

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specific Embodiment approach 1

[0008] Specific embodiment one: the lake sediment sampler of this embodiment comprises a sampling cylinder 1, a connecting rod 2, a traction spring 6, a connecting arm, a closing cover 5, a traction arm 7 and a stay rope 8, wherein the connecting arm consists of two straight arms 4 Composed of semi-circular ring 3, semi-circular ring 3 is arranged on the right side of sampling cylinder 1, and the two ends of semi-circular ring 3 are hinged to hinge support 9 on the upper outer wall of sampling cylinder 1, at the two ends of semi-circular ring 3 The straight arms 4 are respectively fixedly connected, and the closing cover 5 is connected between the two straight arms 4 inclined downward. The spring seat 10 is arranged on the left side of the sampling cylinder 1, and the traction spring 6 is connected between the closing cover 5 and the spring seat 10. , one end of the traction arm 7 is hinged with the semi-circular ring 3, the other end of the traction arm 7 is connected with a s...

specific Embodiment approach 2

[0010] Embodiment 2: This embodiment differs from Embodiment 1 in that the sampling cylinder 1 is made of a stainless steel tube with an inner diameter of 100 mm and a thickness of 2 mm.

[0011] In this embodiment, the opening end of the sampling cylinder is sharpened to facilitate the insertion of the sampling cylinder into the mud at the bottom of the lake.

specific Embodiment approach 3

[0012] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the middle part of the top cover is threadedly connected with a connecting rod 2 .

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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 [0001] The invention belongs to the field of environmental science research, and in particular relates to a sampling tool for lake bottom mud. Background technique [0002] Lake sediments are a good information carrier for recording environmental and climate changes. In recent years, palaeoclimate scholars in my country have used lake sediments to reconstruct paleoenvironmental change information for nearly ten thousand years, which provides a basis for the laws of climate change, driving mechanisms and The direction of future climate evolution provides valuable geological information. However, the application of many paleoclimate proxy indicators is inseparable from the understanding of the relationship between these indicators and environmental factors in the current lake sediments, making the use of scientific sampling methods to collect lake sediments the key to this type of research. [0003] At present, there are two main methods of collecting lake sedi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/10
Inventor 张振卿王国平吕宪国
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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