Automatic water bottom sampling device

An automatic sampling device and sampling tube technology, which is applied in the sampling device and other directions, can solve the problems of expensive equipment, huge research and development costs for manned submersibles, and limited application, and achieve the effects of low cost, simple structure and good fidelity.

Inactive Publication Date: 2014-02-05
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The development of manned submersibles is costly, the equipment is expensive, and the application is limited

Method used

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  • Automatic water bottom sampling device

Examples

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Embodiment Construction

[0012] In the figure, the steel tank (2) is hollow and closed cylindrical, and the top bracket (1) is welded to the top of the steel tank (2), and the top bracket (1) is ring-shaped and has holes for easy grasping. An annular sand chamber (4) is welded under the steel tank (2), the bottom of the sand chamber (4) is open, the center of the upper center of the sand chamber (4) is welded with a central hanging hole (9), and four sandbags can be placed inside the sand chamber (4) (3), the mouth of the sandbag (7) is smaller than the bottom of the sandbag (3), and the bottom of all sandbags (3) is fixed on the top of the sand chamber (4), and each sandbag (3) has a hanging hole (10) inside the bag. The big ball (11) and the small ball (12) in the bag link to each other by ropes, and are mounted on the hanging hole (10) in the bag, and the center hanging hole (9) mounts two center balls (13) by ropes. The sandbag mouth (7) is downward, and the sandbag mouth (7) is tied by a rope dur...

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PUM

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Abstract

The invention provides an automatic water bottom sampling device. According to the automatic water bottom sampling device, cable cars, cables and electronic equipment are not required; the fidelity of a grabbed water bottom sludge sample is good and the automation of moving between the water bottom and the water surface is realized; the device can be stayed at the water bottom for short time. A buoyancy force is provided by a steel can and a sinking pull force is provided by a sand bag; the water bottom sludge sample is grabbed by a sampling pipe with two opened ends, is hollow and is fixed vertically; a rope slipknot for tying a sand bag opening is unfastened by a pull force generating by that an equal-weight staggered metal ball hung on a central hanging hole reaches the water bottom, and sand in the sand bag is released to relive the pull force to realize floating; the small sand bag opening is formed so that the sand is released slowly to realize the aim of staying for short time; a sequence that in-bag small balls and in-bag large balls hidden in different positions of the sand bag roll out realizes the aim that a sleeve plastic bag is pulled to close a pipe opening below the sampling pipe; the aim of closing a pipe cover and sealing an upper opening of the sampling pipe by a water flow acting force in the floating process is realized. The automatic water bottom sampling device is used for realizing the water bottom sampling and is particularly used for grabbing the sludge sample at the water bottom of deepwater.

Description

technical field [0001] The invention relates to a bottom automatic sampling device, in particular to a bottom automatic sampling device for grabbing sludge samples. Background technique [0002] In order to study the microbial diversity of rivers, rivers, lakes, sea bottom sludge, underwater geological environment, and search for active compounds at the bottom, bottom sampling is required. The pressure at the bottom of the water is high, and conventional electronic and communication instruments and equipment are easily damaged or malfunctioned. At present, it is possible to take samples from the bottom of the sea with the help of submarine detectors. Most of the existing detectors need to be connected to the cable car on the sea surface with the help of cables. The cables and cable cars are expensive and inefficient. The subsea automatic transporter does not need cables and cable cars, and can automatically go back and forth to the bottom of the sea. The cost is low, but it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/10
Inventor 刘保平
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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