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Sediment sampler

A sampler and sediment technology, applied in sampling, instruments, scientific instruments, etc., can solve the problems of cross-sectional structure interference and labor.

Pending Publication Date: 2020-10-30
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is laborious and the cross-sectional structure of the sample is disturbed

Method used

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  • Sediment sampler
  • Sediment sampler
  • Sediment sampler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In this example, see Figure 1-Figure 2 , a sediment sampler, including a handle 1, a connecting plate 2, a cam weight 3, a sampling rope 4, a locking mechanism, a piston 14, a sampling tube 18, a collection cavity 19, a connecting rod 20 and a sealing shovel 27; The cam weight 3 is hung on the lower end of the sampling rope 4, so that the cam weight 3 is on the top of the sediment sampler; the handle 1 is connected to the collection cavity 19 through the connecting plate 2 and the connecting rod 20, so that the The handle 1 is fixedly connected to the lower part of the sediment sampler; the collection chamber 19 is installed in the middle and lower part of the sampling pipe 18; a locking mechanism is installed between the cam weight 3 and the sampling pipe 18, and the locking mechanism is connected to the collection chamber 19 the sealing shovel 27 of the lower port; before using the sediment sampler, the sampling rope 4 is hung with the cam weight 3 without touching t...

Embodiment 2

[0033] This embodiment is basically the same as Embodiment 1, especially in that:

[0034] In this example, see Figure 1-Figure 12 , the handle 1 is welded on the connecting plates 2 on both sides, and the connecting plates on both sides are in a parallel state; the center of the handle is provided with a cylindrical rope hole; the cam weight 3 is a cylinder, and the upper end of the weight is provided with a rope ring, A sampling rope 4 is sheathed on the rope ring; the length of the sampling rope 4 is determined according to the depth of the water and the depth of the sediment, and its upper end passes through the rope hole of the handle; They are: upper cam cover, middle cam cover, and lower cam cover; the three cam covers are concentric and parallel, and have the same outer diameter; the inner diameter and thickness of the middle cam cover and the lower cam cover are equal, and the middle cam cover The inner diameter of the cover is larger than the inner diameter of the ...

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Abstract

The sediment sampler comprises a handle, a connecting plate, a cam heavy hammer, a sampling rope, a locking mechanism, a piston, a sampling pipe, a collecting cavity, a connecting rod and a sealing shovel, the cam heavy hammer is hung at the lower end of the sampling rope; the handle is connected with the collecting cavity through a connecting plate and a connecting rod; the collection cavity is formed in the middle lower part of the sampling pipe; a locking mechanism is arranged between the cam heavy hammer and the sampling pipe and is connected with a sealing shovel at the lower port of thecollecting cavity; before use, the sampling rope is hung on the cam counter weight, the locking mechanism is not touched, and the sealing shovel opens the lower port of the collection cavity; when thesediment sampler is put down and sinks into sediments in a water area, the sediments enter the sampling pipe; when the sampling rope starts to be loosened and the cam heavy hammer falls off, the locking mechanism is started to enable the sealing shovel to close the lower port of the collecting cavity, and sampling is completed. The device is simple in structure, convenient to operate, high in sampling success rate and suitable for auxiliary collection operation of various chemical components of stratified analysis sediments.

Description

technical field [0001] The invention relates to hydrology and water environment monitoring technology and devices, more particularly, to a sediment sampler. Background technique [0002] Clay, sediment, organic matter and other minerals in river and lake waters are deposited on the bottom of the water body after long-term physical, chemical and biological effects and water transportation, forming sediments. These sediments interact with water as part of the water body, and also reflect the movement, transformation, etc. of the water body. Therefore, the particle size, layered structure, and chemical composition of sediments are important indicators whether to study the historical changes of water bodies or evaluate their current status. [0003] Commonly used water sediment samplers are generally divided into two types: grab type and column type. Among them, the grab sampler collects sediment by grabbing. It has a simple structure, but it interferes a lot with the sediment...

Claims

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Application Information

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IPC IPC(8): G01N1/08G01N1/10
CPCG01N1/08G01N1/10G01N2001/1031
Inventor 王文鑫梅林范新怡郝峰秦勇汪福顺
Owner SHANGHAI UNIV
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