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Columnar layered mud extractor and method for collecting underwater mud

A kind of dredger, columnar technology, applied in the field of columnar layered dredger and its collection of underwater sludge, it can solve the problems that dredger sludge cannot be carried out normally, it is not suitable for collecting underwater sludge, etc., and achieves scientific structure and convenient use Effect

Inactive Publication Date: 2017-08-25
FRESHWATER FISHERIES RES INST OF SHANDONG PROVINCE
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing mud collectors are similar to the "Luoyang shovel" used in archaeology, and their structure is only suitable for land sampling. The existing mud collectors are inserted into the bottom mud, and the mud in the mud collectors cannot be brought out normally when they are pulled out, so they are not suitable for sampling. Bottom mud

Method used

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  • Columnar layered mud extractor and method for collecting underwater mud
  • Columnar layered mud extractor and method for collecting underwater mud
  • Columnar layered mud extractor and method for collecting underwater mud

Examples

Experimental program
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Effect test

Embodiment approach 1

[0029] Implementation mode one: if Figure 1-7 As shown, the columnar layered mud sampler includes an open pipe shovel 1, a handle 2, a piston cover 3 and one or more glass sampling tubes 4, wherein the open pipe shovel 1 has a C-shaped cross section and is made of elastic metal sheet , the lower end of which is a beveled socket, the outer walls of both sides of the opening are respectively welded with U-shaped handles 5, and the top is provided with a C-shaped top plate 6, and the outer diameter of the C-shaped top plate 6 is greater than or equal to that of the open pipe shovel 1 in the natural state (that is, not The outer diameter under the state of being subjected to an external force), and has a central through hole 7 and a gap 8, forming a C-shaped structure. The upper edge of the top of the open pipe shovel 1 is pushed on the lower surface of the C-shaped top plate 6, and part of the upper edge is welded and fixed , forming a fixed edge, the ratio of the weld length of...

Embodiment approach 2

[0038] Embodiment 2: There is a pair of relative through holes in the lower part of the open pipe shovel 1, and a pull rod 11 (or a pull wire) is inserted in the through hole. As described in method 1, abbreviated, such as Figure 7-10 shown.

Embodiment approach 3

[0039] Embodiment 3: The glass sampling tube 4 includes a window portion and a frosted glass portion, wherein the inner and outer surfaces of the window portion of the glass sampling tube are smooth and transparent, the inner surface of the frosted glass portion is a frosted glass surface, and the remaining components or structures are as described in Embodiment 1. sketches.

[0040] Utilize the method for collecting the mud at the bottom of the water using the columnar layered mud extractor described in embodiment two or three, comprising the following steps:

[0041] ①. Take the piston cap 3, insert it into an end of a glass sampling tube 4, and make the branch pipe 33 and the tapered one-way valve 10 exposed, as Figure 5 shown.

[0042] ②. One person holds the U-shaped handles 5 on both sides of the opening of the open pipe shovel 1 with both hands, and pulls them to both sides, so that the opening of the open pipe shovel 1 expands. Put the sampling tube 4 into the open ...

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Abstract

The invention relates to a columnar layered mud collector and a method for collecting mud at the bottom of the water. Existing mud extractors are not suitable for collecting underwater mud. For this reason, the columnar layered mud sampler adds a glass sampling tube in the elastic opening pipe shovel, and adds a piston cover and a conical one-way valve in the glass sampling tube. hollow ball. When the mud sampler is inserted into the bottom mud, the tapered one-way valve is automatically closed. When it is pulled out, the mud is brought out of the water with the glass sampling tube, and the sample in the glass sampling tube can be squeezed out layer by layer by the piston cover. The columnar layered mud sampler and the method for collecting underwater mud of the present invention have the advantages of scientific structure and convenient use, can perform accurate layered sampling of mud, and are suitable for use by various water conservancy, water affairs, fishery, environmental protection supervision departments, and scientific research units.

Description

technical field [0001] The invention relates to a columnar layered mud collector and a method for collecting mud at the bottom of the water. Background technique [0002] With the continuous development of the economy, people's production and life have an increasing demand for water sources, and at the same time, people's activities are increasingly polluting and affecting inland rivers, lakes, harbors and other natural waters. The water quality has been reflected in the bottom silt over the years. Regular collection and analysis of the bottom silt is the most direct way to monitor the annual and quarterly changes in water quality. [0003] Most of the existing mud collectors are similar to the "Luoyang shovel" used in archaeology, and their structure is only suitable for land sampling. The existing mud collectors are inserted into the bottom mud, and the mud in the mud collectors cannot be brought out normally when they are pulled out, so they are not suitable for sampling....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/12
Inventor 许国晶杜兴华张明磊刘飞王志忠张金路田功太巩俊霞陈秀丽
Owner FRESHWATER FISHERIES RES INST OF SHANDONG PROVINCE
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