River sediment sampler

A technology of sampler and sediment, applied in the direction of sampling device, etc., can solve the problems of destroying the original properties of sediment, inconvenient to carry, low sampling efficiency, etc. easy effect

Inactive Publication Date: 2009-09-16
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] In view of the fact that the existing bottom mud sampler destroys the original properties of the bottom mud during sampling,...

Method used

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  • River sediment sampler

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Embodiment 1

[0029] A river sediment sampler, the main body includes a fixed grab (1), a movable grab (2), a movable rod (4), an extension rod (7) and a handle (10), the fixed grab (1) and the extension rod (7) and operating handle (10) are connected by thread, and movable grab bucket (2) is fixed on the connecting rod of fixed grab bucket (1) by hinge (3). The grab part of the movable grab (2) is connected and fixed on the connecting rod of the fixed grab (1) through a tension spring (6), so that it is always separated from the fixed grab when there is no external force. Stay cord (8) walks around the movable pulley (5) at one end of movable rod (4), and is finally fixed on the handle (10) through fixed movable wheel (9) then.

[0030] After the river sediment sampler is installed, put it into the water, loosen the pull rope, and the movable grab (2) will be released automatically under the action of the tension spring (6). Tighten the pull rope (8) to forcefully lift the movable grab (2...

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Abstract

The invention relates to a river sediment sampler, which comprises a fixed grab bucket, a movable grab bucket, a movable rod, a prolonging rod and a handle, wherein a connecting rod of the fixed grab bucket is connected with an operating handle through the prolonging rod; the movable grab bucket is fixed on the connecting rod of the fixed grab bucket through a hinge; the grab bucket part of the movable grab bucket is fixedly connected to the connecting rod of the fixed grab bucket through a tension spring; and the movable rod is connected through a pulling rope, rounds a movable pulley and then is fixed on the handle. The sampler has the characteristics that: the sampler is portable and convenient to use; the requirement of conventional pollutant monitoring index can be met; the sampling efficiency is greatly improved; the original performance of sediment can be maintained; the sampling depth can be controlled; no material consumption exists and the like. The sampler better meets the requirements of water environment investigation sampling, and has better popularization and use prospect.

Description

technical field [0001] The invention relates to a water body sampler, in particular to a sediment sampler for rivers, lakes and sewage ponds. Background technique [0002] In recent years, with the rapid development of my country's economy and the gradual improvement of people's living standards, the water environment is facing more and more serious non-point source pollution, which affects the quality of people's living environment, water transportation and farmland drainage and irrigation, which is not conducive to agricultural production. The improvement of conditions; it affects the comprehensive utilization of water resources, restricts the development of aquaculture industry, and is not conducive to the increase of economic income. Therefore, the water environment problem has become a hot issue that people pay attention to, and the monitoring and investigation of the water environment has become an urgent matter. [0003] As people pay more and more attention to water ...

Claims

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Application Information

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IPC IPC(8): G01N1/12
Inventor 林玉锁林学东张孝飞
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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