Anchor type surface sediment collection device

Abstract

The invention discloses an anchor type surface sediment collection device. The anchor type surface sediment collection device comprises a V-shaped groove (3), a balance orienting device, a pressing-down device and an automatic top cover opening and closing device, wherein the balance orienting device is fixed on the bottom end of the V-shaped groove (3); the pressing-down device is fixed on the central position of the top of the V-shaped groove (3); and the automatic top cover opening and closing device is used for closing and opening an opening of the V-shaped groove (3). The anchor type surface sediment collection device disclosed by the invention adopts a working principle which is similar to a boat anchor, is high in sampling success rate, is large in sample amount, is simple in structure and strong in practicability, and is good for popularization and application; the anchor type surface sediment collection device can be used for researchers of oceanography, geology, environmentology and the like to collect surface sediments so that the success rate of collecting the surface sediments reaches more than 95%.

Description

technical field [0001] The invention relates to an anchor type surface sediment collection device, which is a collection device applied to surface sediments in oceans, lakes and other water areas. technical background [0002] Surface sediments in water areas are the comprehensive reflection of many factors such as hydrology, physics, chemistry, biology, topography, provenance, geological structure and even sea level changes in the process of sediment formation. It is an indispensable scientific research object and is widely used in practical fields such as water ecological environment assessment and pollution accident investigation. Therefore, the development of a scientific and efficient sediment collection device has dual meanings of science and reality. [0003] Traditional columnar dredgers and grab dredgers use larger specific gravity, such as stainless steel or stainless steel embedded with lead weights as raw materials, and use the difference in gravity and buoyancy...

AI Technical Summary

Problems solved by technology

Using the downward impulse of the device, this type of mud extraction device has two obvious defects: first, in the strong current area, most of the vertical downward impulse of the device will be offset by the transverse horizontal impulse brought by the ocean current , when the device touches the bottom, especially the impulse is not enough, it is impossible to collect enough samples, or even get nothing, and the sampling efficiency is low; secondly, in order to overcome the constraints of unfavorable factors such as ocean currents and terrain, this type of mud mining device has to increase the size of the device. In order to obtain a sufficient impulse, it must be equipped with electric winches and other lifting equipment. At the same time, it increases the work intensity and difficulty of the operator.

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