Sampling device for precise water depth measurement sediment analysis

Abstract

The invention discloses a sampling device for precise water depth measurement sediment analysis. The device comprises a sampling chamber, a lowering rope is correspondingly arranged on the outer sideof the upper end of the sampling chamber, and a counter weight is correspondingly arranged on the outer side of the lower end of the sampling chamber; a sealing chamber is correspondingly arranged onthe inner side of the upper end of the sampling chamber, a driving device is correspondingly arranged in the sealing chamber, and a driving rod of the driving device vertically extends downwards intothe sampling chamber and extends downwards to be provided with a sealing plate. When the sampling device is put down, the driving device drives the sealing plate to be pressed on the bottom plate of the sampling chamber; therefore, all the sampling holes are blocked; the lowering rope and a balance weight are matched to be lowered to a specified depth; at the moment, the driving rod and the sealing plate are controlled by the driving device to move upwards, water enters the sampling chamber from the sampling holes until the sampling chamber is filled with water, then the sealing plate is controlled to be pressed on the bottom plate to block the sampling holes, the whole sampling chamber is pulled out of the water surface, the water sampling is completed, the overall structure is reasonable, and the use is very convenient.

Description

technical field [0001] The invention relates to a sampling device, in particular to a sampling device for precision water depth measurement and bottom analysis. Background technique [0002] In the prior art, in the process of precise bathymetric measurement of the bottom, it is necessary to sample the specified water depth for bottom analysis. The structure of the sampling device in the prior art is usually relatively simple, and the sampling chamber is usually set accordingly and in the The sampling chamber is equipped with an openable water inlet, etc. This structure is usually not flexible enough when sampling. When sampling, after the water inlet is opened, the water flow will rush into the sampling chamber rapidly, and the flow rate of the water sample entering the chamber cannot be corresponding. Adjustment will cause water samples to rush into the sampling chamber in a large area, which will cause disturbance to the water flow at a specific water depth and affect the...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, in the process of precise bathymetric measurement of the bottom, it is necessary to sample the specified water depth for bottom analysis. The structure of the sampling device in the prior art is usually relatively simple, and the sampling chamber is usually set accordingly and in the The sampling chamber is equipped with an openable water inlet, etc. This structure is usually not flexible enough when sampling. When sampling, after the water inlet is opened, the water flow will rush into the sampling chamber, and the water flow rate of the water sample entering the chamber cannot be corresponding. Adjustment, after the water sample rushes into the sampling chamber in a large area, it will cause disturbance to the water flow at a specific water depth and affect the sampling accuracy

Images