Sediment and benthic organism collecting device

A benthic organism and collection device technology, which is applied to measurement devices, sampling devices, sampling and other directions, can solve problems such as difficulty in collecting bottom samples, and achieve the effects of improving accuracy, being convenient to carry, and simple to operate.

Pending Publication Date: 2018-09-14
INST OF GEODESY & GEOPHYSICS CHINESE ACADEMY OF SCI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, generally speaking, the current grab-type dredgers rely on their own gravity to reach the sampling depth, and the bottom samples are collected under the conditions of some hard sediments, gravel-rich

Method used

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  • Sediment and benthic organism collecting device
  • Sediment and benthic organism collecting device

Examples

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Depend on figure 1 with figure 2 It can be seen that a device for collecting bottom mud and benthic organisms is composed of a grab bucket, a force rod and a force closing pull rod:

[0027] The grab is composed of two fan-shaped cylinders with the same size and a quarter-circle cross section 101 and 102. The two ends of the fan-shaped cylinders and the arc surface are sealed, and a panel with several drain holes is placed on the top surface. The central axis of two fan-shaped cylinders is connected with hinge shaft 103;

[0028] At the top edge of the two fan-shaped cylinders, weld two nuts respectively, and connect the two nuts with a steel rope S1;

[0029] The two ends of the two fan-shaped cylinders are close to the opening direction of the bottom surface at the arc surface, and the steel bars 104 and 105 of the same length are ...

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Abstract

The invention discloses a sediment and benthic organism collecting device, and relates to the field of water ecology and environmental monitoring. The sediment and benthic organism collecting device consists of a grab bucket, a force applying rod and a stressed closed pull rod, and is applicable to collection of hard or grassy water sediments and benthic organisms. The sediment and benthic organism collecting device has the advantages as follows: through connection of the force applying rod and the grab bucket, benthic samples can be collected through manual force application; the sediment andbenthic organism collecting device not only can collect loose and soft sediment samples, but also is suitable for the collection of hard sediments, multi-gravel sediments and aquatic plants; the sediment and benthic organism collecting device improves the quantitative sampling accuracy, reduces the possibility of sediment collection failure, can meet vertical collection of surface sediments underthe condition of flowing water, is convenient to carry, easy to operate and short in sampling time, and can collect the surface sediment samples on a relatively large area at one time.

Description

technical field [0001] The invention relates to the field of water body ecology and environmental monitoring, and is suitable for collecting hard or grass-type water bottom mud and benthic organisms. Background technique [0002] With the rapid development of economy and society, a large amount of nutrients such as nitrogen and phosphorus enter lakes, rivers and other water bodies, which intensifies the eutrophication of water bodies. Eutrophication of water often causes algae and other plankton to multiply rapidly, the amount of dissolved oxygen in the water decreases, and the water quality deteriorates, so that the water loses its original social function and ecological value. In fact, sediment is an important part of rivers, lakes, oceans and other water environments. On the one hand, it is not only a "sink" of water pollutants, but also a "source" of water pollution under certain conditions; On the one hand, it plays an irreplaceable role in maintaining the ecological s...

Claims

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Application Information

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IPC IPC(8): G01N1/12
CPCG01N1/12G01N2001/1025
Inventor 王智厉恩华王学雷张小明
Owner INST OF GEODESY & GEOPHYSICS CHINESE ACADEMY OF SCI
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